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4 years ago

What does z stand for in 118/13 = 59/z

Mathematics

1 answer:

Nana76 [90]4 years ago

8 0

Basically they are subbing x with the letter z

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If the tree grows an additional 10 feet, what is the new angle of

avanturin [10]

Answer:

B) 47.1°

Step-by-step explanation:

The tangent relation is useful here.

Tan = Opposite/Adjacent

The original height of the tree is the side of the triangle that is opposite the angle of elevation:

Opposite = Adjacent × Tan

original height = (25 ft)×tan(34°) ≈ 16.863 ft

After growing an additional 10 ft, the tree has a height of ...

16.863 ft + 10 ft = 26.863 ft

Then the angle of elevation is found from ...

tan(angle) = (26.863 ft)/(25 ft) ≈ 1.07451

angle of elevation = arctan(1.07451) ≈ 47.057°

The angle of elevation to the top of the tree is about 47.1°.

6 0

2 years ago

Add (6x^2-3x)+(5x-7)

iragen [17]

No problem.

The answer is 31x.

Hope this helped

7 0

3 years ago

Read 2 more answers

The turtle population on an island is declining at a rate of 1.4% per year. The population was 3800 in the year 2009. What is th

zavuch27 [327]

Your question: The turtle population on an island is declining at a rate of 1.4% per year. The population was 3800 in the year 2009. What is the best prediction of the population in the year 2014? Round to the nearest whole number.

Answer: 3541

Good luck mate, remember to always look through notes and so-forth.

8 0

4 years ago

Sean buys 3 quarts of ice cream. He wants to serve as many 1-cup portions as possible.

givi [52]

Answer:

D. 12

Step-by-step explanation:

there are four cups in one quart. so what i did is i took 3 quarts and multiplied it by 4 cups.

5 0

3 years ago

Find the surface area of a cylinder with a base radius of 2 yd and a height of 3 yd.

kherson [118]

Answer:

20 π

Step-by-step explanation:

The surface area of a cylinder is made up of 2 circles and its side.

To find the circles' areas, use the area formula for a circle: A = π $r^2$ .

Since our radius is 2 yd, we can substitute r = 2 into this formula.

A = π $2^2$ = 4π

Now remember, this is only the area of once circle. Multiply 4π by 2 to get the area of both circles: 8π.

Now we need to find the surface area of the side.

If we flatten it out, we can see that the side is actually a curled up rectangle.

The length is the circumference of the circle and the width is the height of the cylinder.

To find the circumference, use the circumference formula for a circle: C = 2πr.

Substitute r = 2 into the formula.

C = 2π2 = 4π

Now that we know that the length is 4π, we can multiply the length by the width to find the area of the cylinder's side.

l = 4π

w = 3

A = lw = 4π * 3 = 12π

Finally, we can add the areas of the circles and the side to get the total surface area.

8π + 12π = 20π

And that is your answer!

Please mark as Brainliest! :)

3 0

3 years ago