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Hoochie [10]
2 years ago
7

An engine is operating at 25% of its full power. Which number line shows a point that represents 25%?

Mathematics
1 answer:
Grace [21]2 years ago
4 0

Answer:

It could be the first one or second one but the second one makes more sense .

Step-by-step explanation:

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Howard is standing 109 yards from the bottom of a water reservoir. He estimates that the angle of elevation to the top of the wa
pav-90 [236]

Answer:

70.1 yards

Step-by-step explanation:

See the attached diagram.

Let AC is the reservoir with A as the bottom and C is the top.

Now, B is the position of Howard which is 109 yards from A i.e. AB = 109 yards.

Again, the angle elevation from B to C is 50 degrees.

So, ∠ ABC = 50°  

Now, \cos 50 = \frac{AB}{BC} = \frac{109}{x}

⇒ x = 109 cos 50 = 70.1 yards.

Therefore, the distance between the top of the reservoir and Howard i.e. BC is equal to 70.1 yards. (Answer)

8 0
2 years ago
Sound travels through substances as energy is transferred from one particle to the next. The diagrams represent the particles of
tatyana61 [14]

Answer:

Sound requires a material medium to travel , the sound through each medium through its molecules and particles present in it .Sound travels with some speed and it's speed depends upon the nature of the medium through which it travels i.e. upon density and transparently. Speed of increases with the increase in density and decreases with the increases in temperature . Speed if sound us maximum for solid then for liquid and minimum in gases because of it's large intermolecular spaces and low density.

3 0
2 years ago
Solve the equation by completing the square. Round to the nearest hundredth if necessary. x2 – x – 7 = 0
Tanzania [10]
2x-x-7=0

3x-7=0

add 7 to 7 and 0, so then we cross out 7-7, and then

3x=7, bc u change the subtraction to addition, sr if thst doesn't make sense but 3x=7 is the answer
8 0
3 years ago
Read 2 more answers
Using the given postulate, tell which parts of the pair of triangles should be shown congruent.
weqwewe [10]

Answer:

it should be the 5th one because it shows defencicy

Step-by-step explanation:

from what i know

4 0
2 years ago
Can someone help me with math, please? No links 100 points
Cerrena [4.2K]
Congruent because both angles are the same
4 0
2 years ago
Read 2 more answers
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