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yan [13]
4 years ago
14

Solve the following system of equations using the elimination method.

Mathematics
1 answer:
liraira [26]4 years ago
8 0

Answer: its A

Step-by-step explanation:

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djyliett [7]

Answer:

:P

Step-by-step explanation:

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6 0
2 years ago
Solve equation 78 + 67 + 35
Nat2105 [25]

Answer:

180

Step-by-step explanation:

78+67+35 all added together make 180. Hope it helps!

7 0
3 years ago
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Line a passes through points (2, 1) and (7, 9). Line b is perpendicular to a. What is the slope of line b?
SIZIF [17.4K]
Hi :) the slope of line B is -5/8
please refer to the pic below for the solution! :)

8 0
3 years ago
A 20 ft flag pole casts a shadow 32 ft long. What is the angle of elevation of the sun?
Nookie1986 [14]

Answer:

<em>The angle of elevation of the sun is 32°</em>

Step-by-step explanation:

<u>Right Triangles</u>

The flagpole and the ground form a right angle (90°). In triangles with right angles, the trigonometric ratios are satisfied.

Each acute angle has an adjacent leg and an opposite leg. The tangent ratio relates to both legs.

\displaystyle \tan x=\frac{\text{opposite leg}}{\text{adjacent leg}}

The opposite leg to angle x is 20 ft and the adjacent leg is 32 ft, thus:

\displaystyle \tan x=\frac{20}{32}=0.625

Calculate x by using the inverse tangent:

x=\arctan 0.625

x=32^\circ

The angle of elevation of the sun is 32°

7 0
3 years ago
In certain economies, the government operates as the central authority, guiding the economy and controlling (and owning) many of
Andrej [43]

Answer:

b

Step-by-step explanation:

in certain economies, the government operates as the central authority, guiding the economy and controlling (and owning) many of the businesses. Instead of being produced to make a profit, goods and services are produced for uses planned by the government. What type of economy does this describe? A. gift economy B. market economy C. socialist economy D. laissez-faire economy

3 0
3 years ago
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