3 years ago

I GIVEEEE BRAINLILST

Mathematics

1 answer:

kondaur [170]3 years ago

4 0

Answer:

452 square inches

Step-by-step explanation:

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Find the volume of this square pyramid to the nearest tenth.

Hitman42 [59]

Formula:

V = 1/3 * b^2 * h

Plug in what we know:

V = 1/3 * 7^2 * 16

Simplify the exponent:

V = 1/3 * 49 * 16

Multiply all 3 numbers together:

V = 261.3cm^3

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3 years ago

A triangle was dilated by a scale factor of 6. If sin aº

Pavlova-9 [17]

Answer:

24 units

Step-by-step explanation:

A triangle was dilated by a scale factor of 6. If sin a° = four fifths and segment DE measures 30 units, how long is segment EF?

triangle DEF in which angle F is a right angle, angle D measures a degrees, and angle E measures b degrees

15.5 units

24 units

30 units

37.5 units

From the description:

angle D measures a degrees

opposite to angle D is side EF

side DE (which measures 30 units) is the hypotenuse of the triangle.

We also know that

$\sin (a) = \frac{4}{5}$

$\sin (a) = \frac{opposite}{hypotenuse}$

From definition:

$\sin (a) = \frac{opposite}{hypotenuse}$

Replacing:

$\frac{4}{5} =\frac{ EF}{DE} \\\\EF = \frac{4}{5} *DE\\\\EF = \frac{4}{5} *30 \\\\= 24 units$

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3 years ago

What are the solutions to the quadratic equation x^2 + 8x - 8 = 0?

Elanso [62]

Answer:

x=−4+2√6 or x=−4−2√6

E is the answer

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2 years ago

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Alex787 [66]

Answer:

Step-by-step explanation:

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sukhopar [10]

Answer:

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Step-by-step explanation:

i got it right

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2 years ago

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