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3 years ago

Evaluate the expression 6^2-(8–4^2+7

Mathematics

2 answers:

miskamm [114]3 years ago

7 0

please mark this answer as brainlist

stira [4]3 years ago

6 0

Hi there!

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I believe your answer is:

»»————-　★　————-««

Here’s why:

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$6^2 - (8-4)^2+7\\\rule{150}{0.5}\\\rightarrow 6^2 - (4)^2 + 7\\\\\rightarrow 36 - 16+7\\\\\rightarrow 20 + 7\\\\\rightarrow \boxed{27}$

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Hope this helps you. I apologize if it’s incorrect.

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C.) Multiply each term in the parentheses by 14 and then add their products.

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Answer:

59)

Therefore the height of the pyramid is 14 meter.

60)

Therefore the Diameter of Cone is 17.32 cm.

Step-by-step explanation:

59 )

Given:

Shape is Rectangular Pyramid,

Length = 3 meter

Width = 8 meter

Volume of Rectangular Pyramid = 112 cubic meter

To Find:

Height:

Solution:

We Know,

$\textrm{Volume of Rectangular Pyramid}=\frac{1}{3}(Length\times Width\times Height)$

Substituting the given values we have

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60 )

Thee shape is of Cone

Given:

Height= 5 cm

Volume of cone = 125 π cm³

To Find:

Diameter of a cone = d = ?

Solution:

We know,

$\textrm{Volume of cone}=\frac{1}{12}\pi (Diameter) ^{2}\times Height$

Substituting the given values we have

$125\pi =\frac{1}{12}\pi d^{2}\times 5\\ \\d^{2}=25\times 12\\ \\d^{2}=300\\\\d=17.32\\ \therefore Diameter = 17.32\ cm$

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3 years ago