Mathematics High School

Which pairs of expressions are equivalent? Select all that apply.

A
-4 - 7 and -4 + (-7)

B
16 - 7 and -16 + 7

C
-7 - (-12) and -7 + 12

D
-2 - 3 and 2 + 3

E
10 - 2 and 10 - (-2)

Which Pairs Of Expressions Are Equivalent? Select All That Apply.A -4 - 7 And -4 + (-7)B 16 - 7 And -16

Answers

Answer 1

Answer:

A & C

-4-7=-11 and -4+(-)=-11

-7-(-12) and -7+12

Step-by-step explanation:

-4-7= -11, -4+ (-7)= -11

-7-(-12) turns into -7+12=5

the second equation is the same as the first (after using PEDMAS), resulting in the answering being -7+12=5

Answer 2

The pairs of expressions that are equivalent will be -4 - 7 & -4 + (-7) and -7 - (-12) & -7 + 12. Then the correct options are A and C.

What is an equivalent?

The equivalent is the expression that is in different forms but is equal to the same value.

The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.

Check all the options, then we have

A. -4 - 7 and -4 + (-7), then we have

-4 - 7 = - 4 + (-7)

B. 16 - 7 and -16 + 7, then we have

16 - 7 ≠ - 16 + 7

C. -7 - (-12) and -7 + 12, then we have

- 7 - (-12) = - 7 + 12

D. -2 - 3 and 2 + 3, then we have

- 2 - 3 ≠ 2 + 3

E. 10 - 2 and 10 - (-2), then we have

10 - 2 ≠ 10 - (-2)

The pairs of expressions that are equivalent will be -4 - 7 & -4 + (-7) and -7 - (-12) & -7 + 12. Then the correct options are A and C.

More about the equivalent link is given below.

https://brainly.com/question/889935

#SPJ3

Related Questions

b. A solution to the equation f(n)=−3 is 5.

Answers

Answer:

f(n) = 1

Step-by-step explanation:

Another answer for -3. FxN= -3

What is the value of the expression 2.8*10^7/1.4*10^3

Answers

you divide 2.8 and 1.4 which leads you with 2. subtract the exponents 7 and 3 and you get 4. the answer is 2x10^4 :)

Factoring trinomials
Select two for each

Answers

[tex]\mathfrak{\huge{\pink{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the Concept of the Factors.

1.) x^2+4x+3= (x+1) (x+3)

2.) x^2-2x-99 = (x+3) (x-11)

I need help please help me.THANKS!!

Answers

Answer:

A. 42, 120, 162

Step-by-step explanation:

27 x 6 = 162

or

42 + 120 = 162

Plz Help ASAP!!
What is the y-intercept of the line that contains the point (3, –2) and is perpendicular to the line y = – 2/5 x + 3/5?

Answers

Y = 5/2x because the A value need to be the opposite reciprocal for a perpendicular line you then plug the point you are given into our new EQ which equals -2=(5/2)(3) + b (solving for b) and you get b = -9.5 so your new equation is y = 5/2x - 9.5 making your Y int -9.5

There are 4 boys and 2 girls from the seventh grade and 3 boys and 5 girls from the eighth grade in the math club. The math club sponsor will randomly pick one student from each grade level to represent the team.

What is the probability that both will be girls?

Answers

Answer:

5/24 or 20.8%

Step-by-step explanation:

 

Probability that the 7th grader is a boy = number of boys/(total kids) = 4/(4+4) = 1/2

 

Probability that the 8th grader is a boy = 5/(5+7) = 5/12

 

Probability that both are boys = 1/2*(5/12) = 5/24 or 20.8%

The table shows the number of votes for the new school mascot. What percent of the students voted for Polar Bears?

Mascot Number of Students
Polar Bears 6
Tigers 14
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Eagles 11
Katie solved the problem. Her work is shown below. Is her answer correct? If not, explain the error and give the correct answer.

Answers

Answer:

shes so wrong

Step-by-step explanation:

6+14=20+19=39+11=50

100/50=2

6x2=12

12%

Which ones are functions?

Answers

Answer:

6,8

Step-by-step explanation:

5, 6, and 8 are functions because the x doesn’t have repeated numbers.

For the 7 in number 5 that doesn’t have an arrow, it just means, (7, 0).

Mark as Brainlie if it helped!

10 x what equals 66??

Answers

Answer: 6.6
You can divide 66 by 10 to get the answer. To do it quickly, just move the decimal point in 66 to the left one spot

Answer:

6.6

Step-by-step explanation:

10x(x)=66

x=66/10

x=6.6

PLEASE HELP FAST!! Use a graphing calculator to graph the function y=90tan2x on the interval 0 degrees< x < 180 degrees and -300 < y < 300 Evaluate the function at x= 60 degrees, 120 degrees, and 180 degrees Round to the nearest tenth. a. 165.9, 165.9, 0 c. -1.7, 1.7, 0 b. -155.9, 155.9, 0 d. 155.9, -155.9, 0

Answers

Answer: use desmos graphing calculator

Step-by-step explanation:

Answer:

b.  –155.9, 155.9, 0

Step-by-step explanation:

I just did the practice.

What is the answer to this question because I can’t understand it

Answers

Answer:

you have to add both x and y values together. the x and y values came out as (-3,2). hope this helped!

Answer:

(x-11,y-12)

Step-by-step explanation:

Please help me thank you so much Whoever is

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Answer:

1. 96 tennis balls

2. 96 dollars

3. 18 dollars

Step-by-step explanation:

Write the equation in Standard Form.
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Answers

Answer:

seventy-two equals two minus four times

Step-by-step explanation:

Answer:

72x+4y=2

Step-by-step explanation:

Does f(-x) = - f(x)? Why?​

Answers

Answer:

No

Step-by-step explanation:

-x is only in the parenthesis not outside. Whatever your number is, let's say 2 would be x, you input 2 as x in which you get f(-2)

hope this helps :)

2u - 6u =

( worth 10 points)

Answers

answer:
2u-6u = -4u

Good luck!!

HELP PLEASEEE I NEED HELP QUICK
Which of the following are properties of a perfect square trinomial? Select all
that apply.
A. The first and third terms must be perfect squares.
B. Neither of the perfect
squares can have a minus sign.
C. If the perfect square terms are A2 and B2 then the other term
must be 2 AB or -2AB.
D. None of the above is a property of a perfect square trinomial.

Answers

Answer:

C) If the perfect square terms are A^2 and B^2 and other terms must be 2 AB and -2AB

Step-by-step explanation:

As,

[tex](a^2+2ab+b^2)=(a+b)^2\\(a^2-2ab+b^2)=(a-b)^2[/tex]

Answer:

            A, B and C

Step-by-step explanation:

The Perfect Squares  are the squares of the integers

Perfect square trinominal is:   a² ± 2ab + b²  {which is (a±b)²}

So:

The first and third terms must be perfect squares and neither of the perfect  squares can have a minus sign and If the perfect square terms are A2 and B2 then the other term  must be 2AB or -2AB

WILL GIVE BRAINLIEST!!!!!!!
Write a quadratic equation with –6 and 5 as its roots.

Answers

While there are many quadratic equations using -6 and 5 as roots, the most simple would be the basic (x+6)(x-5)=0, or simplified, x² + x - 30 = 0.

Using these roots, all you have to do is make both sides of the equation and even both sides of the multiplied pre-product to equal 0. If using this format, x has to be equal to -6, and 5.

Question 1 of 10
If f(x) = 4x - 12, what is f(2)?
A. -20
B. 8
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D. -4

Answers

The answer is twelve u can sub in 2 for x

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​

Answers

Answer:

2

Step-by-step explanation:

16) The zero of a polynomial ax+b (a is not zero) is

a/b
b/a
-a/b
-b/a​

Answers

Answer:

x = - [tex]\frac{b}{a}[/tex] ( a ≠ 0 )

Step-by-step explanation:

To find the zero, let the polynomial equal zero, that is

ax + b = 0 ( subtract b from both sides )

ax = - b ( divide both sides by a )

x = - [tex]\frac{b}{a}[/tex]

The total cost for tuition plus room and board at State University is 6,584
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Answers

Answer:

$4,194

Step-by-step explanation:

First, you need to subtract the 1,804 from the the total, which will give you 4,780. Divide this by two to get the cost of room and board, which is 2390. To find the tuition fee, add 2,390 and 1,804, and that equals $4,194.

3. In the figure, m/_ 2 = 92, and m/_12 = 74. Find the measure of each angle. Tell which postulate(s) or theorem(s) you used.

/_13

a. 106, vertical angles
b. 74, alternate interior angles
c. 106, supplementary angles
d. 74, consecutive interior angles​

Answers

Answer:

C

Step-by-step explanation:

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The length of the minute hand is 200% of the length of the hour hand. In 1 hour, how much farther does the tip of the minute hand move than the tip of the hour hand? Round your answer to the nearest hundredth.

Answers

Answer:

about 240.8551 mm

Step-by-step explanation:

Jay wants to buy a book for $8.00. The sales tax is 6%. How much will Jay pay for the book including tax?

Answers

Answer: $8.48

Step-by-step explanation: 8x.06 = .48 +8 = $8.48

1092 in exponential form

Answers

Answer:

1.092 × [tex]10^{3}[/tex]  

I hope this helps!

Answer:

1.092×10^3 is the answer .hope this helps

You need to score 80% on the final exam to maintain an “A” average in class. If the exam has 250 questions, how many questions must you answer correctly?
A. 20
B. 160
C. 200
D. 240

Answers

Answer:

200

Step-by-step explanation:

100/250= 0.4

0.4* 200= 80

As the x values increase, the y values decrease

Answers

Answer:

1. That means as the X value decreases the y value increase

2. That means it's a negative Line.

3. The slope is negative

Step-by-step explanation:

Q3) f(x) 2x^2 - 5x, g(x) = 3x^3 find g(4x)

Answers

Answer:

g(4x) = 192x^3

Step-by-step explanation:

For this problem, f(x) is irrelevant since we are simply are dealing with g(x).  We will simply replace the value of x in g(x) with 4x.  So let's do that.

g(x) = 3x^3

g(4x) = 3(4x)^3

g(4x) = 3(4^3)(x^3)

g(4x) = 3(64)(x^3)

g(4x) = 192x^3

Hence, g(4x) is 192x^3.

Cheers.

What is the correct answer for both ? ​

Answers

Answer:

19. Option A

20. Option B

Step-by-step explanation:

Answer of 19 is A by using the a^2 - b^2 = ( a - b) ( a + b) so this will be (r-1 )( r+1) because we have r^2 so we have to factorize it


Answer of 20 is B by following the same steps

Raise to the power:
[tex](-3y)^{4}[/tex]

Answers

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[tex]( { - 3y})^{4} = ({ - 3})^{4} \times ( {y})^{4} = [/tex]

[tex]81 \times {y}^{4} = 81 {y}^{4} [/tex]

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answer: 81y^4


explanation: you raise each term to the 4th power

for the first term “3” 3•3•3•3 = 81
for the second term “y” y^4
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