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krek1111 [17]
3 years ago
7

A granite block in the shape of a right rectangular

Mathematics
2 answers:
d1i1m1o1n [39]3 years ago
8 0

Answer:

168,000 grams

Step-by-step explanation:

since Density =

\frac{mass}{volume}

then mass = density × volume

mass = 2.8 × (30×40×50)

mass = 168,000 g

Gnesinka [82]3 years ago
7 0

Answer:

Step-by-step explanation:

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Step-by-step explanation:


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2 years ago
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Write the standard form of a line that passes through the given points (4,7) and (0,7)
VARVARA [1.3K]

The slope-intercept form:

y=mx+b

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Calculate the slope:

m=\dfrac{7-7}{0-4}=\dfrac{0}{-4}=0

Therefore we have y=0x+7=7

The standard form: Ax+By=C

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4 0
3 years ago
Please explain how u get the answer thanks! <br> (Last question)
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Answer:

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Step-by-step explanation:

3 0
2 years ago
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What is the area of the composite figure
lara [203]

Answer:

Area of composite figure = 216 cm²

Hence, option A is correct.

Step-by-step explanation:

The composite figure consists of two figures.

1) Rectangle

2) Right-angled Triangle

We need to determine the area of the composite figure, so we need to find the area of an individual figure.

Determining the area of the rectangle:

Given

Length l = 14 cm

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Using the formula to determine the area of the rectangle:

A = wl

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A = 168 cm²

Determining the area of the right-triangle:

Given

Base b = 8 cm

Height h = 12 cm

Using the formula to determine the area of the right-triangle:

A = 1/2 × b × h

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Thus, the area of the figure is:

Area of composite figure = Rectangle Area +  Right-triangle Area

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Therefore,

Area of composite figure = 216 cm²

Hence, option A is correct.

4 0
2 years ago
Cos^2 2x−cos^2 6x=sin4x sin8x<br> please help me prove it
Olin [163]
Cos² 2x = (1+cos 4x )/2
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so the answer
4 0
3 years ago
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