Answer:
3(4+5)
Step-by-step explanation:
just fill in the numbers for x and y
Answer:
3(x + y)
x = 4 y = 5
3(4 + 5)
12 + 15
= 27
Step-by-step explanation:
Y= 6x+5
y= -x+1 find the intersection point
Answer:
(4/7 , 1 4/7)
Step-by-step explanation:
Answer:
[tex]\sf (-\dfrac{4}{7} ,1\dfrac{4}{7} )[/tex]
given:
y = 6x+5y = -x+1insert question 2 into 1
[tex]\sf -x + 1 = 6x + 5[/tex]
[tex]\sf -x - 6x = 5 - 1[/tex]
[tex]\sf -7x = 4[/tex]
[tex]\sf x = -\frac{4}{7}[/tex]
find the value of y:
[tex]\sf y = -x + 1[/tex]
[tex]\sf y = -\frac{-4}{7} + 1[/tex]
[tex]\sf y = \frac{4}{7} + 1[/tex]
[tex]\sf y = \frac{4}{7} +\frac{7}{7}[/tex]
[tex]\sf y = \frac{11}{7}[/tex]
[tex]\sf y = 1\frac{4}{7}[/tex]
Therefore coordinates: (x,y) = [tex]\sf (-\dfrac{4}{7} ,1\dfrac{4}{7} )[/tex]
Two cities are 120 miles apart. A tour group that is traveling from one of the cities to the other is already 3/4 of he way. How many miles does the group have left to travel.
Solve the system of equations by inspection. Explain your reasoning
-2x + 4y = 5
-2y + 4y = 6
PLEASE HELP ♡
Answer & step-by-step explanation:
Assuming the second equation is a typo and it's -2x+4y=6
No solutions. The quantity on the LHS is the same on both equation. You're basically required to find something that is at the same time equal to 5 and 6. Which is obviously impossible.
Pls help! Which function models the relationship shown by the line?
A y=-3x + 2
B y= 1/3x + 2
C y=-3x + 6
D y=-1/3x + 6
Answer:
C. y= -3x + 6
Step-by-step explanation:
line passes through +6 at the y axis
so it narrows it down to C and D
line passes through 2 at the x axis at 2,0
when line has x = 2 then y should be 0
only choice left is C. y= -3x + 6
0 = -3(2) + 6
0 = 0
alex has created an image that he wants to enter in a art contest the rules state that all images must be framed and have an area of 80 square inches, including the frame. the image has the dimensions 7 inches by 5 inches. what is the width of the frame
The width of the frame for the image is about 1.5 inches.
What is an area?Area is the amount of space occupied by a two dimensional object or figure.
Let w represent the width of the frame, hence:
Length of image and frame = 7 + w + w = 2w + 7
Width of image and frame = 5 + w + w = 2w + 5
Area of width and frame = (2w + 7)(2w + 5)
80 = 4w² + 24w + 35
4w² + 24w - 45 = 0
w = 1.5 inches
The width of the frame for the image is about 1.5 inches.
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In Mendel’s genetic experiments many characteristics of the plants were quantified, such as their height (tall or short), flower position (axial or terminal), and seed color (colored or white). Suppose 100 plants are measured, and 35 are tall with axial flowers and colored seeds. Further, suppose a total of 25 plants have white seeds, 4 of them being short and 6 having terminal flowers. There are no short plants with terminal flowers, and the total number of short plants is 25. How many plants have terminal flowers are tall and have colored seeds?
I put 6 as the answer and it is incorrect. Please Help.
The 19 plants have terminal flowers are tall, and have colored seeds.
It is given that in Mendel’s genetic experiments many characteristics of the plants were quantified, such as their height (tall or short), flower position (axial or terminal), and seed color (colored or white).
It is required to find the how many plants have terminal flowers are tall and have colored seeds,
What is the application of subtraction?In mathematics, subtraction is defined as the difference between two quantities. The application of subtraction can be used broadly in different applications to find or solve the problems such as finding differences between two quantities and many more.
We have a number of plants = 100
Number of the tall with axial flowers and colored plants = 35
Total number of white seeds plants = 25
Number of plants that is short = 4
Number of plants having terminal flowers = 6
Total number of short plants = 25
The number of have terminal flowers are tall and have colored seeds:
= 100 - 35 - 25 - (25 - 4)
= 19
Thus, the 19 plants have terminal flowers are tall, and have colored seeds.
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PLEASE HELP ME WITH THIS KHAN ASAP ITS NOT THAT HARD IM JUST TIRED
Answer:c
Step-by-step explanation: function 2 y-intecept is -5(when r=0), fuction 1 y-intecept:
p=-3/2*r-5 (r=0 because we looking for y-intecept)
p=0-5=-5
Answer:
The functions have the same y-intercept
Step-by-step explanation:
y-intercept is when r = 0
Function 1:
[tex]p = -\dfrac32(0)-5=-5[/tex]
⇒ y-intercept is at -5
Function 2:
From inspection of table, when r = 0, p = -5
⇒ y-intercept is at -5
Therefore, the functions have the same y-intercept
Will Give Brainliest and 30 credits!! thank you!
Answer:
75.4
Step-by-step explanation:
2·π·12
75.36
The equation for finding the circumference of a circle is 2pi times the radius.
The radius is already given, so we multiply it by 2.
12*2
= 24
After that, we multiply 24 by pi.
24*3.14
= 75.36
ABC has vertices at A(0,4),B(2,2) and C(–2,–1) what is the perimeter of ABC?
Answer:
Step-by-step explanation:
Using the distance formula,
[tex]AB=\sqrt{(0-2)^{2}+(4-2)^{2}}=2\sqrt{2}\\AC=\sqrt{(0-(-2))^{2}+(4-(-1))^{2}}=\sqrt{29}\\BC=\sqrt{(2-(-2))^{2}+(2-(-1))^{2}}=5[/tex]
So the perimeter is [tex]5+2\sqrt{2}+\sqrt{29}[/tex]
During the summer, Cecile read twice as many books as Kami. Laura read three times as
many books as Kami. Gigi read the same number of books as Cecile, Laura, and Kami
combined. Gigi read 30 books. Write and solve an equation to find the number of books
each girl read.
Answer:
The equation
c x 2 > k
l x 3 ?> c > k
g = 30 = c + l + k
this equation is the same as...
Cecile read twice as many books as Kami.
Laura read 3 times as many books as Kami, but possibly less than Cecile.
Gigi read 30 books. 30 books is the same as all 3 girls combined.
To find out how many books each girl read, you need to find 3 unequal numbers that add up to 30. These numbers are substituted, only because they can be anything at all, and I want to prevent confusions.
hope this helps!
help me out with this
Answer:
17x6=102/2=51 rounded is 50-x=30
Step-by-step explanation:
(a) The population of a certain city decreased by 30,000 people.
Write a signed number to represent this population change.
Answer:
Let's say that the population of the city is x
So x - 30,000 is the answer
Write equation of a line in slope-intercept form that passes through (1,-6) and (-7,2).
Answer:
-1
Step-by-step explanation:
the slope is negative one because 2--6/-7-1 which is 8/-8 which makes negative one.
Math of Finance: Chapter 2 Test
When we left James, he had decided to take a job at Jimmy John's as a sandwich artist with an expected salary of
$31,200 per year. James is really looking forward to the pay increase to help take care of his wife and two kids
After working four weeks, he gets his first check. It is much less than he expected. It turns out he will only get paid
for two weeks because Jimmy John's has a delayed paying process. Everyone gets paid two weeks after they work to
give Human Resources time to prepare the tax information. Since James gets paid every two weeks, a)what is his
gross income for his checks? His pay was much less. It tums out, other people get his money first. He had to pay
Federal Income Tax. b)Use the chart on the back of the test to determine his FIT. He also has to pay State
Income Tax. Oklahoma has a flat 5% tax. c)What is his SIT at 5% of his paycheck? Also, something called FICA
was on his paystub. His employer told him it was a required 6.2% tax for Social Security Retirement and a 1.45%
tax for Medicare when he gets older. d)Find James' Social Security Tax. e)Find his Medicare Tax. What is the
amount of FICA Tax listed as being withheld(add together)? Next came the big schock. Apparently, the
Republican Party still hasn't ended required healthcare. Because of this, James has to pay for group insurance with
Jimmy John's. It is $100 every paycheck, g)what percent of James' gross income is this each month? Finally,
James looks at the other category. It has two deductions listed. First, it has Sandwich Union Body Dues. Annual
dues are $130. h)How much was taken out for SUB dues just this paycheck? The second charged deduction for
other was IRA Retirement. He remembers signing up because Jimmy Johns' offers a matching 5%. If James' is
maximizing the match, i)how much is being taken out for retirement from his paycheck? After going over all the
numbers with his boss, it looks like James' check is correct. j)How much was his net income? If these numbers
remain consistent through the year, k)how much will James bring home for the year? DWhat percent of his
expected salary is this? James was really looking forward to his big paycheck. He thought he would have enough
money to get a loan on a new car. m)Do you think he should try to get the loan or not? n>Explain your opinion.
Answer:
6.2
Step-by-step explanation:
hope it helpes you in the long run
please help
1: Find the product of -3x3 + 2x – 4 and 3x – 2
2: Is the product of -3x3 + 2x – 4 and 3x – 2 equal to the product of -3x3 + 2x – 4 and 2x-3?
Step-by-step explanation:
multiplying expressions.
remember every term of one expression has to be multiplied with every term of the other expression, and the results are added up (while considering their individual signs, of course).
1.
(-3×3 + 2x - 4)(3x - 2)
(-9 + 2x - 4)(3x - 2)
(-13 + 2x)(3x - 2) = -13×3x + -13×-2 + 2x×3x + 2x×-2 =
= -39x + 26 + 6x² - 4x = 6x² - 43x + 26
2.
let's do the other multiplication and compare the result with the result of 1 :
(-13 + 2x)(2x - 3) = -13×2x + -13×-3 + 2x×2x + 2x×-3 =
= -26x + 39 + 4x² - 6x = 4x² - 32x + 39
no, this product is not the same as in 1.
The distance from Earth to Zolon is 162,800,000 km. The trip on the Drowzer rocket will take 407
hours. Create an equation to figure out the speed (in km per hour) the Drowzer travels and then use that equation to
find out how fast the Drowzer flies.
Answer:
The height of a geostationary orbit is calculated as the distance required to have an orbital period of 24 hours
Step-by-step explanation:
determine if the expression -a^3 is a polynomial or not. if it is a polynomial, state the type and degree of the polynomial
Answer:
It a polynomial
It is a monomial
3rd degree
Step-by-step explanation:
[tex]-a^3[/tex] is a polynomial
It is a 3rd degree monomial.
Hope this helps!
whats 4 percent of 65
How many fifths would equal 6 tenths?
3
4
1
2
simplify (- 12) +(-8)
Answer:
-20
Step-by-step explanation:
(-12) + (-8)
-12 - 8
-20
I need some clarity on this problem
Answer: C
Step-by-step explanation:[tex]A=\frac{1}{2}(2)(6+8)=14[/tex]
Look at this square: 3 ft 3 rt If the side lengths are halved, then which of the following statements about its area will be true? The ratio of the new area to the old area will be 1:2. The ratio of the new area to the old area will be 1:4. The ratio of the new area to the old area will be 1:8. The ratio of the new area to the old area will be 16:1
Answer:The ratio of the new area to the old area is 1:4
Step-by-step explanation:
What value of x makes the statement true?
"Subtracting 1 from the product of 5 and x gives the same value as adding 10 to the product of 3 and x."
Record your answer in the boxes below. Be sure to use the correct place value.
Answer:
5x-1=10x+3x
5x-3x=10+1
2x=11
x=11/2
Lexi is at the top of the Sunshine Skyway Bridge, traveling on I-275 from Bradenton, FL, and heading into St. Petersburg to see her favorite band play a concert. If the top of the Sunshine Skyway Bridge is 175 feet tall and she sees a boat that appears to be at an angle of depression of 35°, what is the distance from the top of the Sunshine Skyway Bridge to the boat? (That means you are measuring from the top of the bridge and you are not including the height of the boat.)
The distance from the top of the Sunshine Skyway Bridge to the boat is 305.1 feet.
What do we mean by trigonometric ratios?The values of all trigonometric functions dependent on the value of the ratio of sides of a right-angled triangle are known as trigonometric ratios. The trigonometric ratios of a right-angled triangle's sides with regard to any of its acute angles are known as that angle's trigonometric ratios.
The three sides of the right-angled triangle are:
Hypotenuse (the longest side)
Perpendicular (opposite side to the angle)
Base (Adjacent side to the angle)
The six trigonometric ratios are sine (sin), cosine (cos), tangent (tan), cotangent (cot), cosecant (cosec), and secant (sec).
The trigonometry ratios for a specific angle ‘θ’ is given below:
Trigonometric Ratios:
Sin θ = Perpendicular/Hypotenuse
Cos θ = Base/Hypotenuse
Tan θ = Perpendicular/Base or Sin θ/Cos θ
Cot θ = Base/Perpendicular or 1/tan θ
Sec θ = Hypotenuse/Base or 1/cos θ
Cosec θ = Hypotenuse/Perpendicular or 1/sin θ
How do we solve the given question?Let the tower be AB = 175 feet, with the top of the tower as A.
Let the top of the boat be C. We join BC to get a right-angled triangle ABC with ∠B = 90°.
We are told that from the top of the tower, Lexi sees a boat at an angle of depression of 35°, represented as ∠CAD. ∠ACB will be equal to this angle as they are alternate angles.
∴ ∠ACB = 35°.
Let the distance from the top of the boat to the top of the tower be feet, the distance CA, the hypotenuse of the triangle ABC.
∴ By trigonometry, we can say that:
sin 35° = AB/BC
or, 0.5736 = 175/x
or, x = 175/0.5736
or, x = 305.1
∴ The distance from the top of the Sunshine Skyway Bridge to the boat is 305.1 feet.
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What is the radius of a circle that has a diameter of 199
meters?
Do not include a unit of measure with your response;
provide just a numeric answer.
Answer:
99.5
Step-by-step explanation:
Radius = Diameter/2
199/9
=99.5metres
please help me with this
Using it's concept, it is found that the average rate of change of the function over the interval is of 0.
What is the average rate of change of a function over an interval?It is given by the change in the output divided by the change in the input.
In this problem, in the interval from x = -2 to x = 0, the input remains constant at - 1, hence:
[tex]r = \frac{-1 - (-1)}{0 - (-2)} = 0[/tex]
The average rate of change of the function over the interval is of 0.
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Can someone help me with this? I don't know what i'm supposed to do.
Answer:
A) attached
B) 15/36 = 5/12
C) 21/36 = 7/12
D) 18/36 = 1/2
E) 32/36 = 8/9
Step-by-step explanation:
A probability distribution is a table showing all the possible values a discrete random variable can take, plus the probability that it'll take each value.
Let X be the score of a pair of fair six-sided dice
X can take the values 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12
Create a sample space (attached) to visually see the sums of different combinations and to help construct the probability distribution table (attached)
B) Reading from the table:
P(X ≥ 8) = P(X=8) + P(X=9) + P(X=10) + P(X=11) + P(X=12)
= 5/36 + 4/36 + 3/36 + 2/36 + 1/36
= 15/36 = 5/12
C) Reading from the table:
P(X ≤ 7) = P(X=7) + P(X=6) + P(X=5) + P(X=4) + P(X=3) + P(X=2)
= 6/36 + 5/36 + 4/36 + 3/36 + 2/36 + 1/36
= 21/36 = 7/12
D) Reading from the table:
P(X is even) = P(X=2) + P(X=4) + P(X=6) + P(X=8) + P(X=10) + P(X=12)
= 1/36 + 3/36 + 5/36 + 5/36 + 3/36 + 1/36
= 18/36 = 1/2
E) Reading from the table:
P(3≤X≤10) = P(X=3) + P(X=4) + P(X=5) + P(X=6) + P(X=7) + P(X=8) +
P(X=9) + P(X=10)
= 2/36 + 3/36 + 4/36 + 5/36 +6/36 + 5/36 + 4/36 + 3/36
= 32/36 = 8/9
Solve multi-step equations with various solution sets (7th grade):
10 + 12p = 3(3 + 4p)
2) Lucas has saved $50. He earns
$18.00 per hour at his job. He plans to
buy ticket to go on a cruise for $2300.
Write the minimum number of hours
Lucas must work to buy the ticket.
Answer:
125 hours
Step-by-step explanation:
Lucas already has $50. Since he get $18 per hour, you should use that to get the answer. After a little while, I got 125×18 and got 2250. If you add up the $50 he already has, the minimum hours he has to work is 125 hours which is about 5 days.
Answer:
I think the answer is 125 hours
Step-by-step explanation:
To find the unit rate we divide $2300 divided by $18.00
$2300 ÷ 18 = 127.777778
We round that up to 128
We also need to find the unit rate of his saved money
$50 ÷ $18.00 = 2.77777777778
We round that up to 3
128 hours - 3 hours = 125 hours
The area (in square feet) of the school sign can be represented by
15x^2+x-215x2+x−2
Write an expression that represents the length of the sign.
Answer:
5x^2+2x-432
Step-by-step explanation:
15x^2+x-215×2+x−2
=15x^2+x-430+x−2
=15x^2+x+x-430-2
=15x^2+2x-432
The expression that represents the length of the sign is 5x - 2 feet.
What is Area of Rectangle?The area of Rectangle is length times of width.
The area of a rectangle is given by the formula A = length × width.
A = L × W
The given expression, 15x^2 - x - 2, represents the area of the sign in square feet. So we can substitute this expression for A and solve for L:
A = L × W
15x² - x - 2 = L × (3x + 1)
L = (15x² - x - 2) / (3x + 1)
If the height of the sign is (3x+1) feet, then the length of the sign is given by the area divided by the height:
L = (15x² - x - 2) / (3x + 1)
Substituting (3x+1) for the height, we get:
L = (15x² - x - 2) / (3x + 1) = [(3x + 1) (5x - 2)] / (3x + 1) = 5x - 2
Therefore, the expression that represents the length of the sign is 5x - 2 feet.
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The area (in square feet) of the school sign can be represented by 15x2 − x − 2. a. Write an expression that represents the length of the sign. If the height of the sign is (3x+1) ft.
