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3 years ago

–5(–2) = PLEASE HELPPPP

Mathematics

2 answers:

Lady bird [3.3K]3 years ago

7 0

Multiply 5 and 2 which is 10 and then did the signs. Negative times negative evils positive. So the answer is 10.

GenaCL600 [577]3 years ago

5 0

Answer:

bruh 3

Step-by-step explanation:

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Crazy boy [7]

O;902)&3:3247 4g!"/)362925288

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3 years ago

Read 2 more answers

Find the missing measures for the rectangle. l = _?_ w = 4.2 m A = 37.8 m2 P = _?_ A) 9 m; 26.4 m B) 14.7 m; 61.74 m C) 9 m; 13.

egoroff_w [7]

Answer:

The correct answer is A.

Step-by-step explanation:

The area of a rectangle can be calculated using the following formula:

$Ar=W . I$

If we know that the area measures $37.8 m^{2}$ and one side of the figure measures 4.2 m, we can say that:

$37.8m^{2}=4.2m. I$

We isolate the side we don't know:

$\frac{37.8m^{2}}{4.2m} = I\\9 m = I$

So I = 9 m

To know the perimter of a rectangle, we use the following formula:

$P= I. 2 + W . 2$

$P= 9m. 2 + 4.2m. 2$

$P= 26.4 m$

3 0

3 years ago

7 - 4w = 10w <br> What is variable w

morpeh [17]

$7 - 4w = 10w \\ \\ 7 = 10w + 4w \\ \\ 7 = 14w \\ \\ \frac{7}{14} = w \\ \\ \frac{1}{2} = w \\ \\ w = \frac{1}{2} \\ \\$

The final result is: w = 1/2 or w = 0.5.

6 0

3 years ago

Two forces of 401 newtons and 477 newtons act on a point. The resultant force is 828 newtons. Find the

Ray Of Light [21]

Answer:

The answer is " $39.01^{\circ}$ "

Step-by-step explanation:

$\to R= 828\\\\\to F_1= 401\\\\\to F_2=477\\\\\to \bold{R=\sqrt{F_1^2+F_2^2+2F_1F_2 \cos \theta}}$

$828=\sqrt{401^2+477^2+2 \times 401 \times 477 \cos \theta}\\\\828=\sqrt{160801+227529+382554 \cos \theta}\\\\828=\sqrt{388330+382554 \cos \theta}\\\\$

square the above equation:

$(828)^2=(\sqrt{388330+382554 \cos \theta})^2\\\\$

$685584 =388330+382554 \cos \theta\\\\685584 -388330=382554 \cos \theta\\\\297254=382554 \cos \theta\\\\\cos \theta=\frac{297254}{382554}\\\\\cos \theta=0.777025\\\\\theta= \cos^{-1} 0.777025\\\\\theta= 39.01^{\circ}$

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3 years ago

ALGEBRA 1, SEM. 2; PLEASE HELP! show work please!

vagabundo [1.1K]

D= 25- 4*2*-9=97

X= -b+√D/2a OR -b-√D/2a
X= 5+√97/4 OR 5-√97/4

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3 years ago