MATHEMATICS MIDDLE SCHOOL

is 14 correct, can I get some help on 16 and 18, and do I need to find both x and y intercepts?? pls help asap :)

Answers

Answer 1

Answer:

14 isn't correct.

14. y : 6 x : -2

16. y : 1 x : -1/3

18. y : -5/3 x : -1

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Use the system of equations. Please show your steps and how you solved it!3x+3y=153x=6y=-12Please Help!
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Suppose a circle has its center at the origin. What is the equation of the circlein this case?Pleassee answer this quickk
Anthony found a number that is 20% of 30% of 400 what percent of 45 is the number that Anthony found

Help plz thanks question 1

Answers

-2x^2 + 500x - 350

You need to plug in the equations for C(x) and R(x) into the equation P(x)= R(x) - C(x) and solve.

We will do exactly what the question asks and we will Subtract C(x) from R(x) to discover P(x):

P(x) = R(x) - C(x)
P(x) = ( $-2x^(2) + 900x - 200$ ) - ( $400x + 150$ )
P(x) = $-2x^(2) + 900x - 400x + 150 - 200$
P(x) = $-2x^(2) + 500x - 50$

Hope this helps!

In a survey of patients, Dr. Molar found that 8% of his patients floss daily. Which fraction is equivalent to 8%? 4/5, 2/5, 4/25 or 2/25? How do you figure out the answer?

Answers

2/25
= 8%

= 0.08

= 8/100

= 2/25

Final answer:

To convert 8% to an equivalent fraction, divide 8 by 100. Simplify the fraction obtained to find the equivalent fraction.

Explanation:

To find the equivalent fraction to 8%, we need to convert the percentage to a fraction with a denominator of 100. Since 8% is 8 out of 100 parts, the equivalent fraction is 8/100. We can simplify this fraction by dividing both the numerator and denominator by their greatest common factor, which in this case is 4. Simplifying 8/100 gives us the equivalent fraction of 2/25. Therefore, the correct answer is 2/25.

This question is about converting a percentage to a fraction. When you want to convert a percentage into a fraction, you put the percentage over 100 and reduce the fraction if necessary. So, 8% as a fraction is 8/100. To simplify the fraction, find the greatest common divisor of the numerator and denominator, which is 4 in this case. Divide both the numerator and denominator by 4, and you get the fraction 2/25. Therefore, the fraction that is equivalent to 8% is 2/25.

Learn more about Percentage to fraction conversion here:

brainly.com/question/37435567

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At the movies, Liz eats 1/4 of a box of popcorn. Her friend Kyra eats 2 times a small much as Lizard eats. How much of a box of popcorn does Kyra eat?

Answers

Kyra ate 1/4 of the box of popcorn because 2 x 1/4 = 2/4 or 1/2. Hope this helps

Kura ate 2/4 or 1/2 of the popcorn because 2 times 1/4 is 2/4

Verify 2+2cot^2x=2cotxsecxcscx

Answers

$2+2\cot^2x=2\cot x\sec x\csc x\n\nL=2(1+\cot^2x)=2\left(1+(\cos^2x)/(\sin^2x)\right)=2\left((\sin^2x)/(\sin^2x)+(\cos^2x)/(\sin^2x)\right)\n\n=2\left((\sin^2x+\cos^2x)/(\sin^2x)\right)=2\left((1)/(\sin^2x)\right)=(2)/(\sin^2x)\n\nR=2\left((\cos x)/(\sin x)\right)\left((1)/(\cos x)\right)\left((1)/(\sin x)\right)=2\left((1)/(\sin x)\right)\left((1)/(1)\right)\left((1)/(\sin x)\right)\n\n=2\left((1)/(\sin^2x)\right)=(2)/(\sin^2x)$

$\boxed{L=R}$

$Used:\n\n\cot x=(\cos x)/(\sin x)\n\n\sin^2x+\cos^2x=1\n\n\sec x=(1)/(\cos x)\n\n\csc x=(1)/(\sin x)$

Use substitution to solve the system of equations below. Input your answer for x.x + 3y = 16
2x - y = 4

Answers

{ x + 3 y = 16
2x - y = 4

Isolate x for x + 3y = 16 :

x = 16 - 3y

Subsititute x = 16 - 3y

[ 2 ( 16 - 3y ) - y = 4 ]

isolate y for :

2(16 - 3y ) - y = 4

y = 4

For x = 16 - 3y

subsititute y = 4

x = 16 - 3 * 4

x = 16 - 12

x = 4

Solution:

x = 4 and y = 4

hope this helps!.

4. Ellie uses 12.5 pounds of potatoes to make mashed potatoes. She uses one-tenth as many pounds of butter as potatoes. How many pounds of butter does Ellie use?

Answers

1.25 pounds (sorry i had to use more characters)

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