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Ksivusya [100]
3 years ago
10

I need the steps please.

Mathematics
2 answers:
user100 [1]3 years ago
7 0

Answer:A

Step-by-step explanation:

Length=L=15cm

Width=w=8cm

Height=h=2cm

Surface area=(2xwxL)+(2xLxh)+(2xhxw)

Surface area=(2x8x15)+(2x15x2)+(2x2x8)

Surface area=240+60+32

Surface area=332 cm^2

otez555 [7]3 years ago
5 0

Answer:

a. 332 cm²

Step-by-step explanation:

Surface area is the sum of areas of 6 rectangular faces of the box

Opposite faces have equal areas

SA = 2[(15×8) + (15×2) + (8×2)]

= 2[120 + 30+ 16]

= 2(166)

= 332 cm²

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iogann1982 [59]

Answer:

The angles of a parallelogram are 135°-45°-135°-45°

Step-by-step explanation:

we know that

In a parallelogram opposites angles are congruent and consecutive angles are supplementary

Remember that  

The sum of a exterior angle and its interior angle is equal to 180 degrees

Let

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y ----> the measure of the other interior angle of  parallelogram

we have that

x+\frac{x}{3}=180^o

solve for x

\frac{4}{3}x=180^o\\\\x=(180^o)3/4\\\\x=135^o

<em>Find the measure of the other interior angle of parallelogram</em>

Remember that consecutive interior angles are supplementary

x+y=180^o

substitute the value of x

135^o+y=180^o

solve for y

y=45^o

therefore

The angles of a parallelogram are 135°-45°-135°-45°

3 0
3 years ago
What does the equation 7x^2-3y^2-x+2y+4=0 represent
Romashka [77]

Answer:

Circle

Step-by-step explanation:

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2 years ago
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Igoryamba

The equation would be:

y = 3x + 15

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2) graph (find slope): slope would be 3 shells/day that has a y-intercept of 15

3) you already defined the variables

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Rom4ik [11]

Answer:

102°

Step-by-step explanation:

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6 0
3 years ago
How do you write 9.14 X 10^-5 in standard form?
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.0000914

Since it is negative you go behind the .

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8 0
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