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11Alexandr11 [23.1K]
3 years ago
7

Solve the equation, and check the solution. If applicable, tell whether the equation is an identity or a contradiction.

Mathematics
2 answers:
PolarNik [594]3 years ago
8 0

Answer:

please this search in Google

Ivanshal [37]3 years ago
3 0

Answer:

B

Step-by-step explanation:

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Find three solutions of the equation y = 9x - 4.
Darina [25.2K]
First one; substitute x into the equation and see if the result equal y in the coordinate 
7 0
3 years ago
Suppose the heights of professional horse jockeys are normally distributed with a mean of 62 in. and a standard deviation of 2 i
ch4aika [34]
Mean = 62 in
SD = 2 in

At 16% = 0.16 and using Z tables,

Z≈ -0.99

x =(-0.99*2) + 62 ≈ 60 in

This represents jockeys who are shorter than 60 in.
6 0
3 years ago
Emir is standing in a treehouse and looking down at a swingset in the yard next door. The angle of depression from Emir's eyelin
boyakko [2]
<h3>Answer:  24 feet  (Choice D)</h3>

=============================================

Explanation:

Refer to the diagram below. The goal is to find x, which is the horizontal distance from the base of the tree to the swing set.

Focus on triangle BCD.

The angle B is roughly 30.26 degrees, and this is the angle of depression. This is the amount of degrees Emir must look down (when starting at the horizontal) to spot the swing set.

We know that he's 14 ft off the ground, which explains why AB = CD = 14.

The goal is to find BC = AD = x.

---------------------------

Again, keep your focus on triangle BCD.

We'll use the tangent ratio to say

tan(angle) = opposite/adjacent

tan(B) = CD/BC

tan(30.26) = 14/x

x*tan(30.26) = 14

x = 14/tan(30.26)

x = 23.9965714046732

That value is approximate. Make sure your calculator is in degree mode.

That value rounds to 24 feet when rounding to the nearest whole foot.

6 0
3 years ago
Help ASAP, question below, 20 points
Talja [164]

Answer:

1 more lawn per hour

Step-by-step explanation:

Brian mows one lawn every hour while logan takes 4 hours to mow 2

Brian:

Hr 1                    1 Lawn

Hr 2                    2 Lawn

Hr 3                    3 Lawn

Hr 4                    4 Lawn

Logan:

Hr 1                    2 Lawn

Hr 2                    4 Lawn

Hr 3                    6 Lawn

Hr 4                    8 Lawn

4 0
2 years ago
Sumi lives 2 miles from school. valerie lives 10,542 feet from school. who lives closer to school ?
nasty-shy [4]
Sumi because 10452 feets are 1.997 miles
5 0
3 years ago
Read 2 more answers
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