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daser333 [38]
4 years ago
14

How do you do this???????????????????

Mathematics
1 answer:
Akimi4 [234]4 years ago
7 0
The volume of water that goes into the hose is the same as the volume of water that comes out the nozzle. This means the velocity is inversely proportional to the area. The area is proportional to the square of the diameter.

Taken together, these facts mean that if the diameter is divided by a factor of 3, the velocity is multiplied by a factor of 3^2 = 9.

Nozzle velocity = 3^2 * entering velocity
.. = 9 * (4 m/s)
Nozzle velocity = 36 m/s . . . . . . . . . corresponding to selection A
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A person standing 213 feet from the base of a church observed the angle of elevation to the church's steeple to be 33 ∘ .
solniwko [45]

Complete Question

A person standing 213 feet from the base of a church observed the angle of elevation to the church's steeple to be 33 ∘. Find the height of the church

Answer:

138.3 ft

Step-by-step explanation:

We solve this question above using using the Trigonometric function of Tangent.

tan θ = Opposite/Adjacent

Where:

Opposite = Height of the church = x

Adjacent = Distance for the base of the church = 213ft

Angle of elevation θ = 33°

Hence:

tan 33 = x /213 ft

Cross Multiply

x = tan 33 × 213 ft

x = 138.32381735 ft

x = Opposite Approximately = 138.3 ft

Therefore, the height of the church = 138.3 ft

3 0
3 years ago
Caleb bought some new coats. They are normally priced at $20.00 however they are now 31% off. How much did Caleb pay for the coa
Usimov [2.4K]
20 * (31/100) = 21*0.31=6.51
20.00-6.51=13.49

Caleb paid $13.49
3 0
3 years ago
Read 2 more answers
Determine if the two triangles are congruent.
matrenka [14]

Answer:

If two angles and the non-included side of one triangle are equal to the corresponding angles and side of another triangle, the triangles are congruent.

Step-by-step explanation:

If two angles and the non-included side of one triangle are equal to the corresponding angles and side of another triangle, the triangles are congruent.

8 0
3 years ago
Angle A and Angle B are supplementary angles. If angles A = 65, find the m Angle B.
WARRIOR [948]

Answer:

B = 115

Step-by-step explanation:

Since A and B are supplementary, they add up to 180 degrees.

Thus, 65 + B = 180, and B = 115

8 0
3 years ago
HELPPP<br><br> A. 9<br> B. 20<br> C. 16<br> D. 4
serious [3.7K]

Answer:

C 16

Step-by-step explanation:

Using ratios

3:12

12/3=4

4:x

4*4=16

x=16

4:16

hope this helps:)

6 0
3 years ago
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