2 years ago

Can someone tell me if I'm correct or not?

Mathematics

1 answer:

Gnoma [55]2 years ago

5 0

No the vertex should be at (-3,-2) (I checked on my calculator)

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To find the height of a pole, a surveyor moves 120 feet away from the base of the pole and then, with a transit 8 feet tall, mea

Vikki [24]

Refer to the figure.
Let AB be the height of the pole; CD be the height of the transit; BC is the distance from the base of the pole to the transit.

Triangle ADE is a right triangle with angle D measuring 26 degrees. Using the tangent function, we have
$tan\:26^{\circ} =\frac{AE}{120}$
So,
$AE=120\:tan\:26^{\circ}$
$AE=58.53\:$

Therefore, the overall height of the pole is
$AB=58.53+8=66.53\:feet$

The height of the pole is 66.53 feet.

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3 years ago

If the radius of the circle is 3 in, what is the area of the circle?

murzikaleks [220]

The area of the circle is 28.26 in²

<u>Explanation:</u>

Given:

Radius of the circle, r = 3 in

Area of circle, A = ?

We know:

Area of circle = πr²

The value of π is 3.14

Thus,

A = 3.14 X (3)²

A = 3.14 X 9

A = 28.26 in²

Therefore, the area of the circle is 28.26 in²

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2 years ago

Skyler goes to a school which has 100 students in it. She asks 40 random students whether they like the new 8.30 am start to the

dybincka [34]

Answer:

75 students

Step-by-step explanation:

first write a ratio of the students asked to students dislike

40:30, 40 to 30, or 40/30

now simplify the ratio

4/3

now she asked 40 students, so we have to find out the unit rate

so we have to flip the fraction to 3/4 and then divided the top and bottom by 4

0.75/1

now multiply the top and bottom by 100

75/100

75 students

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2 years ago

How many solutions does this equation have 3x-2x+4=2+x+2

ch4aika [34]

If you simply it down you get
$x + 4 = x + 4$
so X can technically be any number

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2 years ago

The third graders at Grace Hardeman Elementary want to play kickball. There are 20 students, and each team will have 5 students.

Julli [10]

Answer:

Step-by-step explanation:

If there are 20 students, and each team has 5 students, then there will be 4 teams of third graders that will play kickball.

20/5 = 4

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2 years ago