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3 years ago

Please help ^ _ ^ Geometry is not my friend :( Please explain and show work

Mathematics

1 answer:

vova2212 [387]3 years ago

3 0

Well starting with just the first statement b is congruent to c by vertical... yes. because they are formed by the intersection and non adjacent. so A and C are still okay.

answer choice B on the other hand b is congruent to h by corresponding that is not true.. one they are not corresponding and two they are supplementary because they are same side exterior angles. so you can eliminate B.

now the next line in answer choice a.. c and e are supplementary by ss interior... yes that is correct.
now the next line in answer choice c.. d and h are supplementary.. that is wrong.. d and h are corresponding and therefore are congruent so you can eliminate answer choice C.

just checking the rest.. e and h are congruent by vertical.. correct.. and finally substitution to finish the proof. So A is the correct proof.

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HURRY I need help Three corporations each own land. Corporation A owns 3.2 × 105 acres, corporation B owns 4 × 104 acres, and co

Ne4ueva [31]

Answer:

Corp A. 320,000

Corp B. 40,000

Corp C. 430,000

Corp C owns the most land, Corp A owns 8 times more land.

Explanation:

3.2.• 10^5 = 3.2 • 100,000 = 320,000

4 • 10^4 = 4 • 10,000 = 40,000

4.3 • 10^5 = 4.3 • 100,000 = 430,000

40,000 < 320,000 < 430,000

320,000 ÷ 40,000 = 8

6 0

3 years ago

Read 2 more answers

A radioactive substance has a half-life of one month, which means that at the end of each month, the level of radioactivity is h

Galina-37 [17]

The level of radioactivity in the soil is decreasing by a factor of 1/2 each month

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3 years ago

Kim is watching a space shuttle launch from an observation spot 2 miles away. Find the angle of elevation from Kim to the space

hammer [34]

Answer:

Step-by-step explanation:

Find the diagrammatic representation in the attachment given.

We can see that the diagram is a right angled triangle. To get the angle of elevation, we will use one of the trigonometry identity SOH, CAH, TOA.

Given the adjacent of the triangle to be 2miles (observation spot from the point of launch)and the opposite (side facing the elevation angle) as 2.1miles (the height), we will use TOA.

tan∅ = opposite/adjacent

tan∅ = 2.1/2

tan∅ = 1.05

∅ = tan⁻¹1.05

∅ = 46.4°

<em>Hence the angle of elevation from Kim to the space shuttle, which is at a height of 2.1 miles is approximately 46.4°</em>

5 0

3 years ago

An oarsman can row his boat 3 mph in still water. He sets out on the Illinois River, which flows at 5 mph. We are interested in

Artyom0805 [142]

Answer:

The speed from the observer is 8 mph.

Step-by-step explanation:

When the boat is going downstream with full force, its speed will be the one the oarsman can row on still water added by the flow of the river. In this case he can row the boat at speed of 3 mph, while the stream is 5 mph, so the speed from the observer standpoint is:

$speed = 3 + 5\\speed = 8 \text{ mph}$

The speed from the observer is 8 mph.

4 0

3 years ago

Make a conjecture of what the x-intercepts of the function<br> f(x) = (2x - 1)(x + 3) will be.

drek231 [11]

Answer:

x=-3,x1/2

Step-by-step explanation:

f(x)=(2x-1)(x+3)

TI find x intercept/zero substitute

f(x)=0

0=(2x-1)x(x+3)

swap the sides of the equation

(2x-1)x(x+3)=0

when the product of factors equals 0,at least one factor is zero

2x-1=0

x+3=0

solve the equation for x

x=1/2

x+3=0

solve the equation of x

x=-3

The equation has two solution

x=-3

x=1/2

3 0

3 years ago