3 years ago

What is 4X squared times X -4

Mathematics

1 answer:

krek1111 [17]3 years ago

5 0

Answer:

4x^2-16x

Step-by-step explanation:

4x(x-4)

4x(x)-4x(4)

4x^2-16x

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What is the surface area of a cube that has a side length of 5 feet?

harkovskaia [24]

Hello!

<h3><em><u>Answer</u></em></h3><h3 />

The surface area of the cube is 150 $ft^{2}$ .

<h3><em><u>Explanation</u></em></h3>

A = 6 $a^{2}$

A = 6 $5^{2}$

A = 6 × 25

A = 150

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3 years ago

A grocery store recently sold 12 cans of soup, 6 of which were black bean soup. Based on experimental probability, how many of t

gladu [14]

Answer:

Step-by-step explanation:

P(black bean soup) = cans of black bean / total = 6/12 =1/2

out of the next 20

20 *P(black bean)

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3 years ago

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On the weekdays a grocery store has 14239 customers and on the weekends the grocery store has

Vedmedyk [2.9K]

Answer: 2605 more on weekdays

Step-by-step explanation:

14239 - 11634 = 2605

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1 year ago

Can someone please help me with the second question….will give brainliest :(

den301095 [7]

Answer:

its 3.

Step-by-step explanation:

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3 years ago

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the length of a rectangle is 8cm more than the width and its area is 172cm2 .find the width of the rectabgle

nikdorinn [45]

$l-the\ length\\l+8-the\ width\\A=172\ cm^2\\\\A=lengtf\cdot width\\\\subtitute\\\\l(l+8)=172\\\\l^2+8l=172\ \ \ |subtract\ 172\ from\ both\ sides\\\\l^2+8l-172=0\\a=1;\ b=8;\ c=-172\\\\\Delta=b^2-4ac\\\\\Delta=8^2-4\cdot1\cdot(-172)=64+688=752 > 0\\\\l_1=\dfrac{-b-\sqrt\Delta}{2a}\ and\ l_2=\dfrac{-b+\sqrt\Delta}{2a}\\\\\sqrt\Delta=\sqrt{752}=\sqrt{16\cdot47}=4\sqrt{47}\\\\l_1=\dfrac{-8-4\sqrt{47}}{2\cdot1}=-4-2\sqrt{47} < 0\\\\l_2=\dfrac{-8+4\sqrt{47}}{2\cdot1}=-4+2\sqrt{47} > 0\\\\The\ width:l+8=-4+2\sqrt{47}+8=4+2\sqrt{47}\\\\Answer:\boxed{length=(2\sqrt{47}-4)cm;\ width=(4+2\sqrt{47})cm}$
$length\approx9.71cm;\ width\approx17.71cm$

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3 years ago