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3 years ago

Please help. What is the value of the expression when a = 3 and b = 2? 3a^3 + 2b^3

Mathematics

1 answer:

algol [13]3 years ago

8 0

The answer is B. 97 3 x 27 + 2 x 8

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Convert 336 hours to seconds

Rainbow [258]

Answer:

336 Hours = 1,209,600 Seconds = 1209600 Seconds\

Step-by-step explanation:

This conversion of 336 hours to seconds has been calculated by multiplying 336 hours by 3,600 and the result is 1,209,600 seconds.

8 0

3 years ago

Read 2 more answers

-300 =5x-(-8x+3) step by step

cupoosta [38]

Answer:

x= −297 /13

Step-by-step explanation:

4 0

3 years ago

3. Rachel has saved $485. She is starting a part-time job that pays her $300 a week, and she plans to save all of the money she

Degger [83]

Answer:

i believe its C

Step-by-step explanation:

3 0

3 years ago

Which situation represents a proportional relationship?

Natalka [10]

Answer:

B) Jack biked 5 miles in 25 minutes and 8 miles in 40 minutes.

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y=kx$

The ratio between the two variables is a constant called constant of proportionality k

$k=y/x$

<u><em>Verify each case</em></u>

A) Julie sold 4 necklaces for $12 and 9 necklaces for $25.

$\frac{4}{12}=\frac{9}{25}$

Multiply in cross

$4(25)=9(12)\\100\neq108$

Is not true

therefore

The situation not represent a proportional relationship

B) Jack biked 5 miles in 25 minutes and 8 miles in 40 minutes.

$\frac{5}{25}=\frac{8}{40}$

Multiply in cross

$5(40)=8(25)\\200=200$

Is true

therefore

The situation represent a proportional relationship

C) Larry packed 24 apples in 6 boxes and 46 apples in 9 boxes

$\frac{24}{6}=\frac{46}{9}$

Multiply in cross

$24(9)=46(6)\\216\neq276$

Is not true

therefore

The situation not represent a proportional relationship

D) Allie put 14 pieces of candy in 2 bags and 30 pieces of candy in 4 bags

$\frac{14}{2}=\frac{30}{4}$

Multiply in cross

$14(4)=30(2)\\56\neq60$

Is not true

therefore

The situation not represent a proportional relationship

7 0

3 years ago

PLS HELP I NEED THIS BY TOMORROW

ValentinkaMS [17]

When we do this, the base of the parallelogram has length b 1 + b 2, and the height is the same as the trapezoids, so the area of the parallelogram is (b 1 + b 2)*h. Since the two trapezoids of the same size created this parallelogram, the area of one of those trapezoids is one half the area of the parallelogram

5 0

3 years ago