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klasskru [66]
3 years ago
7

Question 4 pleasee help me

Mathematics
1 answer:
Rufina [12.5K]3 years ago
7 0

Answer:The third one 5n(4m-3)

Step-by-step explanation: easy

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Please help!! Need an explanation by tomorrow and I am super confused!
vovangra [49]

Answer:

x = 35

y = 7

Step-by-step explanation:

See how the image looks like two overlapping triangles. It is given that the triangles are congruent. Its easier to see whats what if you draw the triangles separately. I also flipped over the triangle on the right so they match. Record the given angle measures. Since A is 45° then D is also 45°. DBC is 30°, so we can find the missing angle in triangle DBC. Angles in a triangle add up to 180° so

C + 45 + 30 = 180

C + 75 = 180

C = 105°

This is angle DCB.

Now all the angles are marked. We can set up equations to find x and y. see image.

7 0
3 years ago
What is the rate of return when 15 shares of stock a, purchased for $15/share, are sold for $330? the commission on the sale is
ladessa [460]

The rate of return on the purchase of the shares of stock given its selling price and purchase price is $99.

<h3>What is the rate of return?</h3>

The rate of return can be described as the total profit that is earned from the sale of the shares of stock.

Rate of return = selling price - total purchase price - commission

$330 - ($15 x 15) - $6 = $99

To learn more about profit, please check: brainly.com/question/26181966

#SPJ1

6 0
2 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:

<h2><em>46.4°</em></h2>

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
What is the congruence method you will use to show that the triangles are congruent?
kozerog [31]
The answer would be SSS or Side-Side-Side.
4 0
3 years ago
Read 2 more answers
Which conclusion does the diagram support?
spin [16.1K]

Answer:

C. AB/BC=FE/ED

Step-by-step explanation:

8 0
3 years ago
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