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1 year ago

Find the volume of the composite solid. Round your answer to the nearest hundredth.

Mathematics

2 answers:

Vera_Pavlovna [14]1 year ago

8 0

Answer: see my work

Step-by-step explanation:

volume is lwh

volume is 3*3*10

volume is 9*10

volume is cubic cm

volume is 90

volume is 90 cubic cm

77julia77 [94]1 year ago

5 0

Answer:

90cm^2

Step-by-step explanation:

3x3=9

9x10=90

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oksian1 [2.3K]

Answer

h = 8.12 cm

Explanation

Area of a parallelogram = b • h

We know the area is 20.3 cm^2 and that the base is 2.5cm.

Therefore 20.3 cm^2 = 2.5h

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2 years ago

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Dafna11 [192]

Answer:

Step-by-step explanation:

for nr. 1

sum of angles in a triangle=180

x=180-(81+84)=15

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2 years ago

A rectangle has a width of 3 units. The rectangle's length is 5 times its width.

Korolek [52]

Answer:

width=3

then length=5×3

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8 0

3 years ago

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Solve x^2 +14x=15 by completing the square

ivanzaharov [21]

Answer:

x = -15 and x = 1

Step-by-step explanation:

Since we have to use the complete the square method, we first need to rewrite the equation in the form $x^{2}+2ax+a^{2}=(x+a)^{2}$ .

This results in $x^{2} + 14x + 7^{2} = 15 + 7^{2}$ .

Next, we simplify the equation to get $x^{2} +14x+7^{2} = 64$ .

Factoring the left side gives us $(x+7)^{2} = 64$ .

Finally we solve the equations: $x+7=\sqrt{64}$ and $x+7=-\sqrt{64}$ .

This gives us x=1, and x=-15

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3 years ago

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Jet001 [13]

Answer:

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Step-by-step explanation:

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