MATHEMATICS HIGH SCHOOL

Help please it would be very much appreciated

Answers

Answer 1

Answer:

Answer:

54 degrees

Step-by-step explanation:

4y-7=2y+11

2y=18

y=9

4(9)-7=25

2(9)+11=29

25+29=54

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Gracie, Mary, and Nancy each have a small collection of seashells. Gracie has 5 more than times the number of shells Mary has. Nancy has 1 more than times the number of shells Mary has. Gracie and Nancy have the same number of shells. If x is the number of shells Mary has, identify the equation that represents this situation and identify its solution.
Mildred has a bag of coins. The bag contains 10 dimes, 5 nickels, and 1 penny. She will randomly select 2 coins from the bag one at a time without replacement. What is the probability that Mildred will select a dime first and then a month penny?
A fish tank is 20 feet long, 12 feet wide, and 10 feet deep. What is the volume of the fish tank?
N entry level technical writer's annual pay is $55,068 based on 52 weeks per year. Due to the economy, his company is having to cut back on the number of weeks that it employs its technical writers. If the firm cuts the work year to 51 weeks but keeps the same rate of pay, how much should the technical writer expect his annual pay to decrease? Round your answer to the nearest dollar.
Which image shows the triangle's incenter? Appreciate the help!

Which driver do you predict will win the next draw race? Why?Driver A had a mean race time 4.01 seconds and a standard deviation of 0.05 seconds.
Driver B had a mean race time of 3.96 seconds and a standard deviation of 0.12 seconds.
Driver C had a mean race time of 3.99 seconds and a standard deviation of 0.19 seconds.

Answers

Answer: driver a

Step-by-step explanation: because the time was 4.01

The sum of two numbers is 8, and the sum of their squares is 34. What is the smaller number?

Answers

Just by trying some small numbers, you discover two that work: 3 and 5.

3 + 5 = 8

3² + 5² = 9 + 25 = 34 .

A women set an Olympic record in the 100m freestyle with a time of 54.64 secs. What was her average speed in mis

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Hello, I've uploaded the photo with the answer to your question here: https://t.ly/iTbeU

See picture for question and answer options! thank you.

Answers

Ouch.
Well, let's see.

First let's get ourselves oriented.
Where in the world are we ?:

-- The 'csc' (cosecant) of anything is 1/sine .

-- If the csc is negative, that tells us the sine of it is also negative ... -2/5 .

-- Since the sine is negative, that means the angle is in the
3rd or 4th quadrant ... between 180° and 360°.

-- But the question also says that the angle is between π and 3π/2 .
That's the 3rd quadrant ... between 180° and 270°.

I think that helps. That's the quadrant where the 'x's and the 'y's
are all negative. So we can immediately throw out the middle \
two choices. It has to be either first or the last choice .

The rest is kind of too hard to explain.
Please see the attached picture.

A family is having a pool built in their backyard. If their yard is rectangular and measures 7x by 6x and the pool is circular with a radius of 2x how much of the yard will be left over after the pool is built?a. 38x2
b. 42x2 – 4x2
c. 42x2 – 2x2
d. 38x2

Answers

Area of a rectangular yard:
A 1 = L x W = 7 x * 6 x = 42 x²
Area of a pool:
A 2 = r² π = ( 2 x )² π = 4 x² π
A = A 1 - A 2
A = 42 x² - 4 x² π
Answer: B ) 42 x² - 4 x² π

According to the Rational Root Theorem, the following are potential fox) 2x2 +2x 24.roots of -4, -3, 2, 3, 4Which are actual roots of f(x)?O 4 and 34, 2, and 3O 3 and 43, 2, and 4

Answers

Correct Answer:First Option

Explanation:

There are two ways to find the actual roots:

a) Either solve the given quadratic equation to find the actual roots

b) Or substitute the value of Possible Rational Roots one by one to find out which satisfies the given equation.

Method a is more convenient and less time consuming, so I'll be solving the given equation by factorization to find its actual roots. To find the actual roots set the given equation equal to zero and solve for x as given below:

$2x^(2) +2x-24=0\n \n 2(x^(2) +x-12)=0\n \n x^(2) +x-12=0\n \n x^(2) +4x-3x-12=0\n \n x(x+4)-3(x+4)=0\n \n (x-3)(x+4)=0\n \n x-3=0, x=3\n \n or\n\nx+4=0, x=-4$

This means the actual roots of the given equation are 3 and -4. So first option gives the correct answer.

The correct answer for the question that is being presented above is this one: "-4 and 3." According to the Rational Root Theorem, the following are potential f(x) 2x2 +2x 24. The actual roots of the quadratic equation based on the Rational Root Theorem are -4 and 3.

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Pls help me with this i will give crown