MATHEMATICS HIGH SCHOOL

Which of these relations is a function?
I’m I correct??
Which of these relations is a function? I’m I correct?? - 1

Answers

Answer 1
Answer:

Answer:

the first one on the bottom

Step-by-step explanation:

There is a little trick to find out if it is a function or not. This trick is called the vertical line test. if you can scan the figure with a virtual line and it does not touch more than one side of the figure at one time then it is a function. if it touches more than one side or line of the figure it is not a function.

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A set of equations is given below: Equation S: y = x + 9
Equation T: y = 2x + 1

Which of the following steps can be used to find the solution to the set of equations?

x = 2x + 1
x + 9 = 2x
x + 1 = 2x + 9
x + 9 = 2x + 1

Answers

Answer:

Option D is correct

x+9 = 2x+1

Step-by-step explanation:

Given the system of equation:

Equation S: y = x + 9  

Equation T: y = 2x + 1

We have to find the following steps can be used to find the solution to the set of equations.

Equate the given equation S and T to solve for x,  we have;

x+9 = 2x+1

Therefore, the following steps can be used to find the solution to the set of equations is:

x+9 = 2x+1
The answer is x+9=2x+1. This is because equation S shows what y equals and then you can just substitute this into equation T!

Terrance and his family are planning how to pay for his college education. The cost of tuition at his chosen college is $14,500 per year. Terrance's parents will pay 80% of the tuition cost every year and he will pay the rest. Terrance has two years to save enough money to attend his first year of college. What is the minimum amount he should save every month in order to reach his goal? PLZ REPLY ASAP!

Answers

Answer:

terrence will have to play 2900

Step-by-step explanation:

80% * 14500

14500-11600

2900

80% of 14500 = 11600

14500-11600=2900

He needs to save 2900 a month

(08.01, 08.02, 08.03, 08.05, 08.06 MC)Part A: Factor x2y2 + 6xy2 + 8y2. Show your work. (4 points)

Part B: Factor x2 + 8x + 16. Show your work. (3 points)

Part C: Factor x2 − 16. Show your work. (3 points)

Answers

Answer: The factorization of all the parts are :

Part A : x^2y^2+6xy^2+8y^2=y^2(x+2)(x+4).

Part B :  x^2+8x+16=(x+4)(x+4).

Part C :  x^2-16=(x+4)(x-4).

Step-by-step explanation:  We are given to factorize the following quadratic polynomials :

Part A : Factor x²y² + 6xy² + 8y².  

Part B : Factor x² + 8x + 16.

Part C: Factor x² − 16.

We will be using the following factorization formulas :

(i)~x^2+ax+bx+ab=(x+a)(x+b),\n\n(ii)~x^2+2xa+a^2=(x+a)^2=(x+a)(x+a),\n\n(iii)~x^2-a^2=(x+a)(x-a).

The factorization of all the parts area as follows :

Part A :

We have

x^2y^2+6xy^2+8y^2\n\n=y^2(x^2+6x+8)\n\n=y^2(x^2+4x+2x+8)\n\n=y^2(x(x+4)+2(x+4))\n\n=y^2(x+2)(x+4).

So,x^2y^2+6xy^2+8y^2=y^2(x+2)(x+4).

Part B :

We have

x^2+8x+16\n\n=x^2+2* x*4+4^2\n\n=(x+4)^2\n\n=(x+4)(x+4).

So, x^2+8x+16=(x+4)(x+4).

Part C :

We have

x^2-16\n\n=x^2-4^2\n\n=(x+4)(x-4).

So,x^2-16=(x+4)(x-4).

Thus, all the parts are factorized.
is it x times 2 times y times 2? is that what it is asking or is it meaning squared

The sum of the measures of angle 4,7, and _____ is equal to 180

Answers

7 I think because if you would put a zero behind the 4 and 7 and add them together it will be 110 and all that's left if u subtract them from 180 is 70 (7)

A star has a diameter of 4,680,000,000 units. Express this number in scientific notation.

Answers

Answer:

4.68*10^9

Step-by-step explanation:

Scientific notation is defined as a way of writing very large or very small numbers.

A number between 1 to 10 is written in scientific notation when it is multiplied by a power of 10.

Here the given scenario is :

A star has a diameter of 4,680,000,000 units.

So, in scientific notation we can write this as :

4.68*10^9

We can check this if we multiply this by 10^9. This will shift the decimal to 9 places in the right side.
the answer should be 4.68x10^9. 

Find the missing value to the nearest hundredth. COS x = 7/14 *

Answers

Answer:

the cosine of x is 60

Step-by-step explanation:
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