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3 years ago

8

Please can someone help me?

1 answer:

lorasvet [3.4K]3 years ago

6 0

Answer:

∠ 3 = 90°

Step-by-step explanation:

∠ 3 and ∠ 4 are adjacent angles on a straight line and sum to 180° , then

∠ 3 + ∠ 4 = 180°

∠ 3 + 90° = 180° ( subtract 90° from both sides )

∠ 3 = 90°

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Describe the following pattern in your own words and write three next terms:2;1;1\2;1\4

tangare [24]

Answer: Please mark me brainliest, it will really help me just as this answer really helps you.

Description: Divide by two

Next three terms: 1/8, 1/16, 1/32

Explanation:

<em>How to get next term?</em>

Divide the number before by two to get the next term.

<em>How do you get the pattern?</em>

I observed a pattern that each next number was divided by two.

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2 years ago

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The value in dollars v(x), of a certain truck after x years is represented by the equation v(x)= 32,500(0.92) raised to the x po

s2008m [1.1K]

The 32,500 is the original cost of the truck and the (0.92) You take v(x)=32,500(0.92)
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8 0

3 years ago

What is the value of this expression -15-(-4)+17

Doss [256]

$\sf\implies \: - 15 - ( - 4) + 17$

$\sf \implies \: - 15 + 4 + 17$

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$\boxed{ \tt \: ans \dashrightarrow 6}$

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7 0

3 years ago

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A triangular pyramid has a base shaped like an equilateral triangle. The legs of the equilateral triangle are all 20 inches long

Pie

Answer:

Surface area of pyramid with base equilateral triangle is $390+100\sqrt{3}$ square inches

Step-by-step explanation:

Recall the following result:

The total surface area(S) of a regular pyramid is given by,

$S = \frac{1}{2}pl+B$ ...... (1)

Here, p represents the perimeter of the base , $l$ the slant height and B the base area of the pyramid.

From the given information:

Side of equilateral triangle = 20 inches

Slant height of the pyramid( $l$ ) = 13 inches.

First find the perimeter and Area of the base pyramid.

Perimeter of equilateral triangle(p) = $3 \times (side)$

= $3 \times 20 = 60 inches$

Area of equilateral triangle(B) = $\frac{\sqrt{3} }{4} \times (side)^{2}$

= $\frac{\sqrt{3} }{4} \times (20)^2 = 100\sqrt{3}$ square inches.

Substitute the above values in equation (1) as shown below:

$S=\frac{1}{2} \times 60 \times 13+100\sqrt{3}$

$S= 390+100\sqrt{3}$ square inches

Hence, the surface area of pyramid with base equilateral triangle is $390+100\sqrt{3}$ square inches.

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3 years ago

The number of bags of soybean seeds N that a farmer needs varies jointly as the number of acres a to the planted and the pounds

frozen [14]

Answer:

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Step-by-step explanation:

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3 years ago