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2 years ago

I need help with this pls :)

Mathematics

1 answer:

Elza [17]2 years ago

3 0

Wht is tht ummmmm dvdhshsjehrjsjhrgrhshsj

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Q # 11. please help to resolve

snow_lady [41]

We know the following statements regarding the box:

1. The box is rectangular
2. It's twice as long as it is wide
3. The height of the box is 3 feet less than the width 
4. x: feet wide

So we can apply a mathematical language to solve this problem. The volume of a rectangular box can be find by:

$V=W\times L\times H \\ \\ where \\ \\ W:Width \\ L:Length \\ H:Height$

But we also know that:

$W=x$

And the box is twice as long as it is wide:

$L=2x$

The height of the box is 3 feet less than the width is given by:

$H=x-3$

So combining these results:

$V=x(2x)(x-3) \\ \therefore V=2x^2(x-3) \\ \therefore \boxed{V=2x^3-6x^2}$

The right answer is B

7 0

3 years ago

PLEASE HELP ASAP!!!!!

evablogger [386]

Answer: x=2.25

Step-by-step explanation:

-3x+10=5x-8

+3x +3x

10=8x-8

+8 +8

18=8x

18/8=8x/8

2.25=x

6 0

2 years ago

Emma buys and sells truck parts. She bought two tires for $35.00 each and later sold them for $65.00 each. She bought three rims

Zolol [24]

Answer:

two tires for $35 -------------------------$70 total

three rims for $75--------------------------- $225

five headlights for $ 4.00 ----------------$20

Emma spends ($225+$70+$20) =$315

Now Emma sells them for 2 tires for $65 =130

3 rims for $136 = $408

5 headlights for $15 = $75

total money Emma makes = $613.

the profit is $613- $315= $298

the profit is $298

7 0

2 years ago

Will mark brainliest, 60 points

Dominik [7]

Answer:

$\boxed{ \bold{ \sf{ \: 1. \: \: \: \: \: 198}}}$

$\boxed{ \bold{ \sf{2. \: \: \: \: \: - 8}}}$

$\boxed{ \bold{ \sf{ 3. \: \: \: \: \: \frac{64}{343} }}}$

Step-by-step explanation:

1. Given, u = 20 , x = 4 , y = 7 , z = 10

$\sf{ \frac{u}{z} + x {y}^{2} }$

⇒ $\sf{ \frac{20}{10} + 4 \times {7}^{2} }$

⇒ $\sf{ \frac{20}{10} + 4 \times 49}$

⇒ $\sf{ \frac{20}{10} + 196}$

⇒ $\sf{ \frac{20 + 196 \times 10}{10} }$

⇒ $\sf{ \frac{20 + 1960}{10} }$

⇒ $\sf{ \frac{1980}{10} }$

⇒ $\sf{198}$

2. $\sf{4( - 2)}$

Multiplying or dividing a positive integer by any negative integer gives a negative integer

= - 8

3. $\sf{( \frac{4}{7} ) ^{3} }$

⇒ $\sf{( \frac{ {4}^{3} }{ {7}^{3} } })$

⇒ $\sf{ \frac{4 \times 4 \times 4 }{7 \times 7 \times 7}}$

⇒ $\sf{ \frac{64}{343} }$

Hope I helped!

Best regards! :D

5 0

3 years ago

Read 2 more answers

Assessment items Which expression shows the result of applying the distributive property to 9(2+5m) ?

Aleksandr-060686 [28]

The distributive property....ur basically multiplying the number outside of the parenthesis by everything in the parenthesis....to get rid of the parenthesis.

9(2 + 5m) = (9 * 2) + (9 * 5m) = 18 + 45m <==

6 0

3 years ago