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vovangra [49]
3 years ago
13

The work of a student to find the dimensions of a rectangle of area 8 + 16x and width 4 is shown below:

Mathematics
1 answer:
Jobisdone [24]3 years ago
6 0
Factor 8x+16

It would be 4(2+4x)

So the student made a mistake in step 2

It should be 4(2)+4(4x)

Answer C
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Evaluate 2y²(x+y) when x = 1 and y = 5<br> Show working out
Harlamova29_29 [7]

Answer:

300

Step-by-step explanation:

2(5)²(1+5)

2(25)(6)

50(6)

300

4 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%28%28x%20-%201%29%20%5Cdiv%203%20%29%20-%202%20%5Cleqslant%20%28%285%20-%202x%29%20%5Cdiv%206
sergejj [24]

Answer:

x ≤ \frac{19}{4}

Step-by-step explanation:

Given

\frac{x-1}{3} - 2 ≤ \frac{5-2x}{6}

Multiply through by 6 to clear the fractions

2(x - 1) - 12 ≤ 5 - 2x ← distribute and simplify left side

2x - 2 - 12 ≤ 5 - 2x

2x - 14 ≤ 5 - 2x ( add 2x to both sides )

4x - 14 ≤ 5 ( add 14 to both sides )

4x ≤ 19 ( divide both sides by 4 )

x ≤ \frac{19}{4}

6 0
3 years ago
Mehwish's temperature at 9:00 .. Was 97.2 ℉. At 4:00 .. Her temperature was risen to 99 ℉. By how many degrees did her temperatu
ValentinkaMS [17]

Answer:

1.8° F

Step-by-step explanation:

Given that:

Mehwish's temperature at 9:00 = 97.2°F

Mehwish's temperature at 4:00 = 99°F

The degree rise in Mehwish's temperature is :

(Mehwish's temperature at 4:00 - Mehwish's temperature at 9:00)

(99°F - 97.2°F)

= 1.8°F

Therefore. The number of degree rise in Mehwish's temperature is 1.8°F

4 0
2 years ago
A paper company needs to ship paper to a large printing business. The paper will be
Karo-lina-s [1.5K]

Answer:

16 boxes large

Step-by-step explanation:

if the weigth is 1280 wilhich means its 1280÷80 =16

3 0
2 years ago
How do you do this problem help me
IgorC [24]

h2 + 52 = 102

          <span> h2 = 10<span>2 </span>− 52 = 100 − 25 = 75 = 52×3</span>

<span>           <span> h = 5</span></span>3 ≈ 8.7

   Area A  = ½×10×h ≈ ½×10×8.7 ≈ 43 cm<span>2</span>

<span>
</span>

<span>
</span>

<span>Hope this helps</span>

3 0
3 years ago
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