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m_a_m_a [10]
3 years ago
10

Create a system of equations with a solution of (-5,2)

Mathematics
1 answer:
saul85 [17]3 years ago
5 0
Y=-2x-8
Y=x+7

Hope this helps :))
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To estimate the height of a mountain, two students find the angle of elevation from a point (at ground level) b = 800 meters fro
Nady [450]

Answer: The height of the mountain is 1,331.4 meters (approximately)

Step-by-step explanation: From the information given, the students were standing at point b which is 800 meters from the base of the mountain and the angle of elevation from that point is 59°. Assuming that the ground is level, we can derive a right angled triangle from this set of details and hence we have triangle ABC, where angle β is the reference angle, (59 degrees), BC is the distance from the students to the base of the mountain (800 meters) and the line AC is the height of the mountain.

The line AC is the opposite, since angle B is the reference angle, therefore we shall use the trigonometric ratio as follows;

Tan β = opposite/adjacent

Tan 59 = AC/800

Tan 59 x 800 = AC

1.6643 x 800 = AC

1331.44 = AC

AC ≈ 1331.4

Therefore the height of the mountain is approximately 1,331.4 meters

6 0
3 years ago
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Y’all plz- help this is so hard <br> giving brainlest ;)
stiv31 [10]

Answer:

B

Step-by-step explanation:

5 0
3 years ago
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-3x-(-2-4x) in simplest form
gogolik [260]

Answer:

-3+(2+4x)

combine like terms

-1+4x that's the answer

5 0
3 years ago
What are some practical applications of monomials
Andrews [41]

Answer:

A monomial is an expression in algebra that contains one term, like 3xy. Monomials include: numbers, whole numbers and variables that are multiplied together, and variables that are multiplied together. Any number, all by itself, is a monomial, like 5 or 2,700.

Step-by-step explanation:

5 0
3 years ago
Simplify 4^9 X 4^3 please (:
Radda [10]

Answer:

4^12

Step-by-step explanation:

4^9 * 4^3

We know that a^b * a^c = a^ (b+c)

4^9 * 4^3

4^(9+3)

4^12

8 0
3 years ago
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