Answer:
Step-by-step explanation:
It is easiest to just set both equations equal to each other and then solve for x.
Then we can plug the value we found for x back into either equation to find the corresponding y value.
This represents where on a graph the lines cross each other. At that intersection point, they would have the same x and y value.
I believe in you!
[tex]-2x + 9 = 4x - 3[/tex]
Answer:
x=2 y=5
Step-by-step explanation:
Rewrite as -2x+9=4x-3. Solve for x: -2x-4x=-3-9--> -6x=-12--> x=2. Now that we know x=2, substitute x into each equation: y=-2(2)+9=-4+9=5. y=4(2)-3=8-3=5, thus making y=5
Can someone help me solve this need help on this ASAP
We are given radius, r = 7 inches
We know that :
Circumference = 2πr
⟹ Circumference = 2π × 7 inches
⟹ Circumference = 14π inches
Hence, circumference of circle is 14π inches.
A new bicycle costs $72. What is the
purchase price of the bicycle if you
pay 6.625% tax?
Answer:
I think that it is somewhere around 68 because 6 percent of 72 is 4.32.
Step-by-step explanation:
Answer:
$76.77
Step-by-step explanation:
$72 * (1+0.06625) = $76.77
A ball is thrown into the air from the top of a building. The height, h(t), of the ball above the ground t seconds after it is thrown can be modeled by h(t)= -16t^2+64t+80 How many seconds after being thrown will the ball hit the ground?
Answer: Also can i have brainliest?
The ball will hit the ground 5 seconds after being thrown.
Step-by-step explanation:
The correct function is: h(t)= -16t^2+64t+80
You can rewrite the Quadratic function given in the exercise with making h(t)=0. Then this is:
0= -16t^2+64t+80
Now you can simplify the equation dividing both sides by -16. So you get:
0= t^2-4t-5
To find the solution of the Quadratic equation, you can factor it. In order to do this, it is necessary to find two numbers whose sum is -4 and whose product is -5. These number would be -5 and 1.
Therefore, you get this result:
0= (t-5) (t+1)
t1=5
t2=-1
Since the time cannot be negative, you can conclude that the ball will hit the ground 5 seconds after being thrown.
and this too ?? anybody know how to do this ?
Answer:
c
Step-by-step explanation:
44
mark as brainlist......
Answer:
I think it will be C but sure it will be C hope that helps
given f(x)=2x-10 determine the value if f(x)=8
Answer:
f(x)=2x-10 ______(given)
f(x)=8 _______(given)
Therefore, according to the above problem
2x-10=8
2x=10+8
2x=18
x=18/2
x=9
9 is the right answer.The value of the input of a function given the output is found by reversing
the operations of the function.
When f(x) = 8, x is 9.
Reasons:
The given function is; f(x) = 2·x - 10
Required:
The value of x if f(x) = 8
Solution:
When f(x) = 8, we have;
f(x) = 2·x - 10 = 8
Which gives;
2·x - 10 + 10 = 8 + 10 = 18
2·x + 0 = 18
[tex]x = \dfrac{18}{2} = 9[/tex]
x = 9
When f(x) = 8, x = 9
Learn more here:
https://brainly.com/question/12551117
What is the simple interst on $32,000 at 7% interest for 6 months?
Answer:
$2,450
Step-by-step explanation:
7%x 32,000
Answer:
I think it is $2,240
Step-by-step explanation:
I took the test and I believe got that one right.
plzzzzzzzzzzzzzzzzzzzzzzzzzzz
Step-by-step explanation:
Given
3(3x - 4) - 2(2x - 1)
= 9x - 12 - 4x + 2
= 5x - 10
= 5(x - 2)
Hope it helps :)
If a polynomial function f(x) has roots 3 and StartRoot 7 EndRoot, what must also be a root of f(x)?
Answer:
–√(7) must also be a root of f(x)
Step-by-step explanation:
Given that the roots of an equation is 3 and √(7). This means that x = 3 or √(7). Therefore, the function is definitely going to be:
f(x) = (x – 3)(x² – 7)
This is because we are dealing with √(7) and what brought about √(7) was x² = 7.
If this is the case, we know that x² = 7 will give
x = ±√(7)
Hence, our roots are x = 3 or √(7) or –√(7). Therefore, –√(7) must also be a root of f(x).
Answer:
A
Step-by-step explanation:
Edge 2021
i need help please!!
Answer: D
Step-by-step explanation:
A Store recudes the price of a jacket by 40%. The sale price of the jacket is $30.
A. What percent of the original price is the sale's price
B. What was the original price of the jacket.
Answer:
A. 60%
B. The original price is $50
Step-by-step explanation:
A. 60%
Sales Price = 100 - 40 = 60%
The sales price is $30.00
Therefore 60% is equal to $30.00
60% = $30
1% = 30 ÷ 60 = $0.50
100% = 5 x 100 = $50
B. The original price is $50
Percentage of the original price = 30/50 x 100 = 60%
If ABC measures 90º, what is the measure of overline AC?
Answer:
B
Step-by-step explanation:
Answer:
90°
Step-by-step explanation:
the angle will always match the arc created on the circumference.
if the angle was 154°, the arc would also measure 154°
Mr. Smith, the Math teacher, looks at his class Mean this semester and determines that it is 72%. He is told that he will be receiving a student (Blake) from the class down the hall who's personal Mean this semester is 80%. What will happen to Mr. Smith's class Mean as a result of Blake joining his class? *
It will go down
It will go up
It will stay the same
It is impossible to know
Other:
Answer:
It will go up.
Step-by-step explanation:
Since blakes personal "mean" is 80% then the average will go up.
$1.29 for 20 ounces
Unit rate!
Answer:
To find the "Unit rate" you need to find the price for one ounce. So, you need to divide 1.29 by 20.
When you do this you get the following decimal
0.0645
Since we are talking about money, we are often expected to round to the nearest cent. So the cost-per-unit is $.06
Emily draws point C on the line segment so that the ratio of AC to CB is 3 to 1. What are the coordinates of Point C?
a. (-2,2.5)
b.(-1,2)
c.(3,0)
d.(4,-0.5)
Answer:
d.(4,-0.5)
Step-by-step explanation:
We are given that the ratio of AC to CB
AC:CB=3:1
[tex]m_1=3,m_2=1[/tex]
From given figure
The coordinates of A are (-5,4)
The coordinates of B are (7,-2)
We have to find the coordinates of C
Section formula:
[tex]x=\frac{m_1x_2+m_2x_1}{m_1+m_2},y=\frac{m_1y_2+m_2y_1}{m_1+m_2}[/tex]
Using the formula
The coordinate of point C are
[tex]x=\frac{3(7)+1(-5)}{3+1},y=\frac{3(-2)+1(4)}{3+1}[/tex]
[tex]x=\frac{16}{4},y=\frac{-1}{2}[/tex]
[tex]x=4,y=-0.5[/tex]
Hence, the coordinate of point C are (4,-0.5)
Option d is true.
The ratio of boys to girls is 5:1 if there are 60 more boys than girls workout how many people there are in total
Answer: 80
Step-by-step explanation:
Let the number of girls be x
Therefore, the number of boys will be: = x + 60
The ratio of boys to girls is 5:1. Using this and equating to the number of bits and girls will be:
5/1 = x + 60/ x
Cross multiply
5x = x + 60
5x - x = 60
4x = 60
x = 60/4
x = 15
Number of girls = 15
Therefore boys will be: = x + 60 = 15 + 60 = 75.
Total number of people = 15 + 75 = 80
A campsite in the shape of a rectangle FGHI has sides (3x + 6) m and (x+1) m and the length of the diagonal FH is (4x+1) m. Find the area of the campsite
Answer:
168 m²
Step-by-step explanation:
A rectangle is a quadrilateral (four sides) with two pairs of equal opposite sides. All the four angles in a rectangle are equal to 90°.
Given the sides of rectangle FGHI as (3x + 6) m and (x+1) m and the diagonal as (4x + 1) m.
Hence, from Pythagoras theorem:
(4x + 1)² = (3x + 6)² + (x + 1)²
16x² + 8x + 1 = (9x² + 36x + 36) + (x² + 2x + 1)
16x² + 8x + 1 = 10x² + 38x + 37
16x² + 8x + 1 - (10x² + 38x + 37) = 0
6x² - 30x - 36 = 0
6(x² - 5x - 6) = 0
x² - 5x - 6 = 0
x² - 6x + x - 6 = 0
x(x - 6) + 1(x - 6) = 0
(x + 1)(x - 6) = 0
x = -1 or x = 6
since x cannot be negative, therefore x = 6
Sides are (3x + 6) = 3(6) + 6 = 24 m
(x + 1) = 6 + 1 = 7 m
Diagonal = 4x + 1 = 4(6) + 1 = 25 m
Area of camp site = side * side = 24 m * 7 m = 168 m²
Mrs. Stelzel uses 10 cups of tomatoes and 3 cups of onions to make salsa. How many cups of tomatoes should she use if she uses 1.5 cups of onions? PLS HELPP
Answer:
5 cups of tomatoes
Step-by-step explanation:
3÷1.5 = 2
10÷2 =5
Please someone help me! ASAP
Answer:
103
Step-by-step explanation:
the line is 180 degree angle also know as a straight angle if you take the 40 and the 33 away from 180 you are left with 103 and that is angle a
URGENT
Add 3x3 – 5x2 + x and 4x3 + 2x² - 4x using vertical format.
Answer:
7x^3-3x^2-3x
hope this helps!!:)
Step-by-step explanation:
Analyn is heating a solution in her chemistry lab.The temperature of the solution starts at 10 C. she turns on the burner and finds that the solutions temperature increases by 4 C every minute. This graph shows the temperature change.
Answer:
22,3 is the answer to the question
Answer:
It's D
Step-by-step explanation:
Black Widow closely tracks her total villains vanquished count. She is
currently at 31. She vanquishes 2 villains each day. What is the total number
of villains she will have vanquished after 9 days? *
Answer:
49
Step-by-step explanation:
V=villains
D=Days
2V times 9D + 31
49 is your answer
Right answer gets brainlist
Answer:
151
Step-by-step explanation:
Volume of a cone can be found using the equation below
V=π(r^2)(h/3)
divide diameter by two to find the radius: 8/2=4
Plug the values into the equation: V=π(4^2)(9/3)
Simplify
V=π(4^2)(9/3)
V=π(16)(3)
V=150.79
Rounds up to 151
what is the area title of 10 inches 8 inches and 6 inches?
Answer:
24 square units
Step-by-step explanation:
the triangle is a right triangle with base as 8 and height as 6 so solve area like any other triangle
8*6=48
48/2=24
State what additional information is required in order to know that the triangles are congruent
for the reason given.
Answer:
Step-by-step explanation:
Hank decided to invest money into a retirement fund. If the average investment return is 12% and Hank invests the yearly maximum of $6,000 how much interest will that initial investment be worth in 20 years?
Answer:
$14400
Step-by-step explanation:
Using the formula for calculating the simple interest expressed as;
SI = Principal * Rate * Time/100
Given
Principal = $6000
Rate = 12%
Time = 20 years
Substitute into the formula;
SI = 6000 * 12 * 20/100
SI = 60*12*20
SI = 14,400
hence the interest worth after 20years will be $14400
what is 1 3/4 + 1/6 + ? = 7 1/2
Answer:
x = 5 7/12
Step-by-step explanation:
let x = ?
7/4 + 1/6 + x = 15/2
multiply the equation by 12 to eliminate fractions
12([tex]\frac{7}{4}[/tex]) + 12([tex]\frac{1}{6}[/tex]) +12x = 12([tex]\frac{15}{2}[/tex])
21 + 2 + 12x = 90
23 + 12x = 90
12x = 90 - 23
12x = 67
x = 67/12 = 5 7/12
HELP ME OUT PLZ PLZ I NEED TO GET THIS DONE MY DOG IS BIEING ME HELP ME ME AT
Answer: It looks nice..? Nice gacha character..?
Step-by-step explanation:
solve 11x-22=(2)5x+4
pls help me 10 points
Answer:
A
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
Answer:
A
Step-by-step explanation:
A graph that shows a proportional relationship has the line go through the origin and the only graph that does is A.
Best of Luck!
Find the circumference of a circle with radius, r = 1.5m.
Give your answer in terms of pi
Answer:
3 pi
Step-by-step explanation:
[tex]C= 2\pi r[/tex]
[tex]C= 2\pi 1.5[/tex]
[tex]C= 3\pi[/tex]
