Answer:
Two negatives make a positive.
Step-by-step explanation:
Please hurry! 50 points :)
Which point could be on the line that is perpendicular to Line M N and passes through point K?
A. (0, −12)
B. (2, 2)
C. (4, 8)
D. (5, 13)
Answer:
Your answer option is B) (2,2)
Answer:
Step-by-step explanation:Coordinate geometry is one of the most important and exciting ideas of mathematics. In particular it is central to the mathematics students meet at school. It provides a connection between algebra and geometry through graphs of lines and curves. This enables geometric problems to be solved algebraically and provides geometric insights into algebra.
The invention of calculus was an extremely important development in mathematics that enabled mathematicians and physicists to model the real world in ways that was previously impossible. It brought together nearly all of algebra and geometry using the coordinate plane. The invention of calculus depended on the development of coordinate geometry.
If the ratio of apples to pumpkins was 5:7 and there are 21 pumpkins, how many apples are there?
Answer:
15 apples
Step-by-step explanation:
7×3=21
5×3=15
Answer:
15 apples
Step-by-step explanation:
hope I could help
The ratio of oranges sold to bananas sold is 3 to 10. If a total of 30 bananas were sold,then how many oranges were sold ?
Answer:
9
Each value is 3 times the number on the ratio.
10 x 3 = 30.
So, the ratio for oranges would be 9 because:
3 x 3 = 9.
So, the answer is 9.
Congratulations on your new job as a high school football coach! Each player on the team is required to run 1.5 miles in less than 15 minutes. One lap around the field is 300 yards. How many laps must a player run to meet the requirement? Calculate to the nearest tenth. (1760 yards = 1 mile)
Answer:
8.8 laps
Step-by-step explanation:
because of the concepts of molecular osmosis used to provide a detailed explanation to kermit. Thereby omitting the theory of dark matter into the universe and thus replacing it with the new compulsive theory of 50 % growth of human anatomical secretory sections.
Need help with this English assignment due now pls hurry up I need #10-13 poem help me out now
Answer:
Step-by-step explanation:
Question 13- I remember the year of 2001 because that was the year the twin towers were bombed and that was the year the pentagon got bombed too.
18s^2+2g-12+15g-9s^2
Which expression(s) represent a total gain of $70? Select all that apply
100 + (-30)
-20 + (-50)
20 + (50)
50 - (-20)
-30 - (-100)
-70
70
Which ones apply please help!
7.25 x 10^5 in standers form
Answer:
i hope it helps
Step-by-step explanation:
0.000074
Explanation:
7.4
×
10
−
5
To write in standard notation, move the decimal point on
7.4
over as many times as the power of ten given.
Move to the left if the given power has a negative exponent
Move to the right if the given power has a positive exponent
Therefore:
7.4
×
10
−
5
=
0.000074
whats the answer of 2+a/4=-1
Hello! My name is Chris and I’ll be helping you with this problem.
Date: 9/27/20 Time: 8:58 pm CST
Answer:
A = 4
Explanation:
Step 1: Write out the equation
2 + a/4 = -1
Step 2: Solve
Add 2 to both sides of the equal sign
a/4 = 1
Multiply 4 on both sides
a = 4
I hope this helped answer your question! Have a great rest of your day!
Furthermore,
Chris
Amy solved the exponential inequality
4 Superscript 2 x minus 2 Baseline greater-than-or-equal-to 2
by first rewriting the inequality as
4 Superscript 2 x minus 2 Baseline minus 2 greater-than-or-equal-to y
and then graphing this inequality. She determines the solution set of the inequality is (infinity, 1.25 right-brace.
Which best describes Amy’s solution?
-Amy is correct. The interval (negative infinity, 1.25 right-brace is the solution set for the inequality.
-Amy did not break the inequality into two related inequalities. Her solution set only relates to one inequality.
-Amy used the incorrect inequality symbol. The solution set should be [1.25, ∞).
-Amy used the wrong variable when writing the solution. The solution set should relate to y and not x.
Answer: C. Amy used the incorrect inequality symbol. The solution set should be [1.25, ∞)
Step-by-step explanation:
Answer:
Amy used the incorrect inequality symbol. The solution set should be [1.25, ∞).
Step-by-step explanation:
edge
.......................
Answer:
32 degrees
Step-by-step explanation:
If lines r and t are parallel then it would be 180-148
What is Slope?
describe what slope is,
Use at least TWO sentences!
Answer:
BET LETS GO
Step-by-step explanation:
In mathematics, the slope or gradient of a line is a number that describes both the direction and the steepness of the line. The slope is calculated by finding the ratio of the "vertical change" to the "horizontal change" between any two distinct points on a line.
Let f(x) = x + 7 and g(x) = x − 4. Find f(x) ⋅ g(x). (1 point)
Answer:
[tex]f(x)*g(x) = x^2+3x-28[/tex]
Step-by-step explanation:
[tex]f(x) = x+7\\g(x) = x-4\\\\f(x) * g(x) = (x+7) * (x-4)[/tex]
To solve a multiplication of 2 parenthesis, we'll multiply each of the terms on the left with each of the terms on the right. Then, add all of the products together.
First, x (left) with x (right):
[tex]x * x = x^2[/tex]
Next, x (left) with -4 (right):
[tex]x * (-4) = -4x[/tex]
Next, 7 (left) with x (right):
[tex]7 * x = 7x[/tex]
Finally, 7 (left) with -4 (right):
[tex]7 * (-4) = -28[/tex]
Now we have 4 products. To find the result of the entire expression, we need to add all of these together.
[tex]x^2 - 4x + 7x - 28[/tex]
We can simplify -4x+7x to 3x:
[tex]x^2 + 3x-28[/tex]
Answer: [tex]f(x)*g(x) = x^2+3x-28[/tex]
Answer:
[tex] \longmapsto f(x) = x + 7 \\ \longmapsto g(x) = x - 4 \\→ f(x)g(x) = (x + 7)(x - 4) \\ = {x}^{2} - 4x + 7x - 28 \\ = \boxed{ {x}^{2} + 3x - 28}✓[/tex]
x²+3x-28 is the right answer.helppp ill mark u as brainlist
Answer is A .
Explaination = 4x+12 < ( i cant type it with a line below but remember it has it) -8
(will give Brainliest)
what is the value of x
Answer:58?
Step-by-step explanation:
[tex](2x + 12)^{\circ} + 32^{\circ} = 90^{\circ}\\2x + 12^{\circ} + 32^{\circ} = 90^{\circ}\\2x = 90^{\circ} - 12^{\circ} - 32^{\circ}\\2x = 46^{\circ}\\x = 23^{\circ}[/tex]
15 + 6f = 7f show steps please as soon as possible!
Answer:
f = 15
Step-by-step explanation:
15 + 6f = 7f
subtract 6f from each side
15= 1f
15=f
Answer:
15
Step-by-step explanation:
15 +6f =7f
15 =7f - 6f
15 =f
Liliana wants to start a seventh-grade computer club at Hamden Middle School. She surveyed 20 seventh-grade students at the town park. She asked each student how many hours they spend on their computers each week. She obtained the following results.
8, 15, 0, 11, 12, 13, 16, 13, 0, 4, 17, 14, 30, 13, 5, 12, 1, 13, 12, 21
What is the ratio of the total number of students who used their computers to the total number of students surveyed?
StartFraction 2 over 20 EndFraction or StartFraction 1 over 10 EndFraction
StartFraction 2 over 18 EndFraction or StartFraction 1 over 9 EndFraction
StartFraction 18 over 20 EndFraction or StartFraction 9 over 10 EndFraction
StartFraction 18 over 2 EndFraction or StartFraction 9 over 1 EndFraction
Answer:
Liliana surveyed 20 students that how many hours they spend on their computers each week.
The results are as follows
8, 15, 0, 11, 12, 13, 16, 13, 0, 4, 17, 14, 30, 13, 5, 12, 1, 13, 12, 21
In the above results 2 students did not use computers out of 20 students.
Therefore, The total number of students who used their computers = 20 - 2 = 18
So the ratio would be 18 : 20 or 9 : 10
Answer:
Ratio would be 9 : 10
Step-by-step explanation:
hope it helps
Use f(x) = 1/2 x and f-^1(x) = 2x to solve the problems.
f(2) =
f(1) =
f-^1 (F2)) =
Answer:
f(2) =
⇒ 1
f−1(1) =
⇒ 2
f−1(f(2)) =
⇒ 2
(a)The population of a city is increasing exponentially at a rate of 2% each year. The population now is 256 000. Calculate the population after 30 years. Give your answer correct to the nearest thousand.
(b) A bacteria population increases exponentially at a rate of r% each day. After 32 days, the population has increased by 309%. Find the value of r.
Sorry.. Good Luck with the answer tho!...
(a)The population of the city after 30 years will be 463708.566 as per exponential growth.
(b) The value of the exponential 'r' is 4.5%.
What is the exponential growth of a system?"Exponential growth is a process that increases quantity over time."
Here, f(x) = a(1 + r)ˣ
f(x) = exponential growth function
a = initial amount
r = growth rate
x = number of time intervals
(a)The population of the city is (A) = 256,000.
The rate of increase of population per year is (r) = 2% = 0.02.
Time period (n) = 30 years.
Therefore, the population after 30 years
= A(1 + r)ⁿ
= 256000(1 + 0.02)³⁰
= 463708.566
(b) Let, the total bacteria is x.
The rate of increase of bacteria per day is = r%
Time period (n) = 32 days.
Total increased in bacteria in 32 days = 309%.
After 32 days, the total number of bacteria is
= x + (x × 309/100)]
= x + 3.09x
= 4.09x
Therefore,
4.09x = [tex]x(1 + r)^{t}[/tex]
⇒ [tex](1 + r)^{32}[/tex] = 4.09
⇒ (1 + r ) = 1.045
⇒ r = 0.045
⇒ r = 4.5%
Learn more about exponential growth here: https://brainly.com/question/18118767
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please help 50 points
Answer:
2. Georgia colony
3. Massachusetts Bay Colony
4. New York
5. Charter of Pennsylvania
6. May 4, 1776
7. Swedes colony
8. Rhode Island colony and Connecticut colony
9. New York
10. Plymouth colony
11. Maryland and Virginia colony were both founded in 1776
12. 1732 - 1215 = 517
Hope this helps, could sure use brainliest after this:)
Answer:
thank YOU
Step-by-step explanation:
ASAP GEO PROBLEM HELP NEEDED QUICK
Prove that triangle with sides' lengths x^2−1, 2x, x^2+1 is a right triangle.
Answer:
See below.
Step-by-step explanation:
The converse of the Pythagorean Theorem tells us that if the sum of the square of the two shorter lengths is equivalent to the square of the longest length, then the triangle is indeed a right triangle.
We have the side lengths (x²-1), (2x), and (x²+1).
We can see that our hypotenuse will be (x²+1), since it will always yield the largest value for x.
So, we can use the Pythagorean Theorem:
[tex]a^2+b^2=c^2[/tex]
Substitute (x²-1) and (2x) for a and b, and substitute (x²+1) for c:
[tex](x^2-1)^2+(2x)^2\stackrel{?}{=}(x^2+1)^2[/tex]
Square each expression:
[tex](x^4-2x^2+1)+(4x^2)\stackrel{?}{=}(x^4+2x^2+1)[/tex]
Combine like terms:
[tex]x^4+(-2x^2+4x^2)+1\stackrel{?}{=}(x^4+2x^2+1)[/tex]
Add:
[tex]x^4+2x^2+1\stackrel{\checkmark}{=}x^2+2x^2+1[/tex]
We can see that the resulting equations are equivalent, proving that the triangle is indeed a right triangle.
And we're done!
which number is largest?
-12
-11
-9
-5
-15
Answer:
-5
Step-by-step explanation:
it just is okay trust me
Select the correct answer.
What are the x-intercept and the y-intercept of this function?
fx) = 4x + 12
O A.
The x-intercept is (3,0), and the y-intercept is (0,-12).
OB.
The x-intercept is (-3,0), and the y-intercept is (0,-12).
O C.
The x-intercept is (3,0), and the y-intercept is (0,12).
OD.
The x-intercept is (-3,0), and the y-intercept is (0,12).
Answer:
D- The x-intercept is (-3,0), and the y-intercept is (0,12).
Step-by-step explanation:
right on plato/edmentum
The solution is Option D.
The x-intercept is ( -3 , 0 ), and the y-intercept is ( 0 , 12 )
What is an Equation of a line?
The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept
And y - y₁ = m ( x - x₁ )
y = y-coordinate of second point
y₁ = y-coordinate of point one
m = slope
x = x-coordinate of second point
x₁ = x-coordinate of point one
The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )
Given data ,
Let the equation of the line be f ( x ) = y
And , the equation is
f ( x ) = 4x + 12
So , y = 4x + 12
To find the x intercept of the line ,
Substitute the value of y = 0
So , 0 = 4x + 12
Subtracting 12 on both sides , we get
4x = -12
Divide by 4 on both sides , we get
x = -3
Therefore , the x-intercept is ( -3 , 0 )
Now , To find the y intercept of the line ,
Substitute the value of x = 0
So , y = 12
Therefore , the y-intercept is ( 0 , 12 )
Hence , The x-intercept is ( -3 , 0 ), and the y-intercept is ( 0 , 12 )
To learn more about equation of line click :
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pls help me make you brainliest
8:00 am in espanol please translate correctly
Answer:
"Ocho en punto" I'm pretty sure
Please help! I'm being timed! Given the midpoint and one endpoint, find the other endpoint.
Endpoint 1: (2,-9) Midpoint:(-2,-1)
Options:(4,8)
(-4.-8)
(6,-7)
(-6,7)
Answer:
I believe its (-6, 7)
-4.3 g equals 25.8 solve for G
what is the last term of (2x-4)2
Answer: 16
============================================
Explanation:
The full expanded expression is 4x^2-16x+16
Which you can get through these steps
(2x-4)^2
(2x-4)(2x-4)
y(2x-4) ...... let y = 2x-4
2xy - 4y
2x( y ) - 4( y )
2x( 2x-4) - 4( 2x-4 ) .... plug in y = 2x-4
4x^2 - 8x - 8x + 16
4x^2 - 16x + 16
The question is an illustration of expansion and factorization.
The last term of the expression is 16.
We have:
[tex](2x - 4)^2[/tex]
Expand
[tex](2x - 4)^2 = (2x - 4) \times (2x - 4)[/tex]
Further expand
[tex](2x - 4)^2 = 2x(2x - 4) - 4(2x - 4)[/tex]
Open brackets
[tex](2x - 4)^2 = 4x^2 - 8x - 48x + 16[/tex]
[tex](2x - 4)^2 = 4x^2 - 56x + 16[/tex]
Hence, the last term of the expression is 16.
Read more about expansion and factorization at:
https://brainly.com/question/8075902
simplify : 3a(2a-x+1) URGENTLYYY
Answer:
the answer is 6a^2- 3ax+ 3a
Is 4/5 an integer? pls help
Answer:
Answer and Explanation
Step-by-step explanation:
The fraction 4/5 is a rational number. Rational numbers result when one integer is divided by another. both four and five are integers.
Morgan used 5 gallons of paint to paint 1,750 square feet. How many gallons of paint would she need to cover 2,800 square feet
Answer:
Morgan would need 8 gallons of paint to cover 2800 ft^2
Step-by-step explanation:
Write and solve an equation of ratios:
x 2800 ft^2
--------- = ----------------
5 gal 1750 ft^2
Cross-multiplying yields 1750x = 14000, and so x = 8
Morgan would need 8 gallons of paint to cover 2800 ft^2
