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kakasveta [241]
3 years ago
7

Which of the following expressions are equivalent?

Mathematics
1 answer:
Dmitry [639]3 years ago
4 0

Answer:

B. 7(6x – 1) and 42x – 7 is equivalent

Step-by-step explanation:

A. –3(3x + 5) and –9x + 5

=–3(3x + 5)=-9x-15 not equivalent

B. 7(6x – 1) and 42x – 7

7(6x – 1)=42x-7 equivalent

C. –6(4x – 3) and –6x

=–6(4x – 3)=-24+18 not equivalent

D. 5(2x + 3y) and 25xy

=5(2x + 3y)=10x+15y not equivalent.

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What is the mode? (math)​
Serggg [28]
The mode is the value that appears more frequently. In this case, the mode is number 1.
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3 years ago
Which inequalities have no solution? Check all of the boxes that apply. 1. x > x 2. –3x –3x 3. –4 + x > –2 + x 4. x – 2 &l
Alecsey [184]

Answer:

1, 3

Step-by-step explanation:

1. x > x

Technically, one number cannot be more than itself. It can only equal to itself.

3. –4 + x > –2 + x

If you minus x from both sides of the equation, it becomes:

-4 > -2

This is not true no matter what x is, thus it has no solution.

4. x – 2 < x + 3

If you add 2 on both sides, it becomes:

x < x + 5

This inequality is possible and has infinitely many solutions.

Note: I will update this answer and address Question 2 once the inequality sign is given :)

4 0
3 years ago
Jim would like to create a pencil holder with no top. He would like it to be 5 inches tall and 3 inches wide. He cannot decide i
maw [93]

Answer:

\$11.13

Step-by-step explanation:

step 1

Find the surface area of the cylinder

The surface area of the cylinder is equal to

SA=\pi r^{2} +2\pi rh

we have

r=3/2=1.5\ in ----> the radius is half the diameter

h=5\ in

assume

\pi =3.14

substitute

SA=(3.14)(1.5)^{2} +2(3.14)(1.5)(5)=54.165\ in^{2}

<em>Find the cost</em>

54.165*(0.75)=\$40.62

step 2

Find the surface area of the square prism

The surface area of the prism is equal to

SA=b^{2} +4bh

we have

b=3\ in\\ h=5\ in

substitute

SA=(3)^{2} +4(3)(5)=69\ in^{2}

<em>Find the cost</em>

69*(0.75)=\$51.75

step 3

Find the difference of costs

\$51.75-\$40.62=\$11.13

5 0
4 years ago
The drama Club meets in the school auditorium every 2 days, and the choir meets There every 5 days. If the groups are both meeti
aalyn [17]

Answer:

7dias

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Does the function satisfy the hypotheses of the Mean Value Theorem on the given interval?
liq [111]

Answer:

7/3

Step-by-step explanation:

f(x) = 3x^2 + 2x + 1, [0, 2]

f(0)=1

f(2)=17

f'(c)=f(2)-f(0)/2-1

f'(c)=17-1/1=16

f'(c)= 6x+2

6x+2=16

6x=16-2

6x=14

x=14/6

x=7/3

4 0
4 years ago
Read 2 more answers
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