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3 years ago

A line that goes across the circle is called

Mathematics

2 answers:

maks197457 [2]3 years ago

8 0

Diameter goes across the whole circle, and Radius is halfway

I hope this helped

Colt1911 [192]3 years ago

5 0

The line that goes halfway is called radius and Diameter is the line that goes across the whole circle 360/360

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Find the circumference of a circle with a diameter of 15 inches... Round to the nearest tenth and include units in your answer..

rosijanka [135]

Answer:

47. 1 inches ; where inches ⇒ units

Step-by-step explanation:

Consider the Circumference as such;

$Diameter - 15 inches,\\Circumference - 2\pi r, r - radius,\\\\2\pi r = \pi d, d - diameter ( considering, 2 * r = diameter )\\\\Circumference = \pi * d = \pi * diameter = \pi * 15 = ( About ) 47.1 inches\\Solution; Circumference = ( About ) 47.1 inches$

From this we can tell that ⇒ Answer; 47. 1 inches, where inches - units

6 0

3 years ago

Read 2 more answers

-mb-m^2 for m=3.48 and b=96.52

AlekseyPX

I- huh I don’t understand the question

3 0

3 years ago

Find the sum of the first 12 terms of the sequence. Show all work for full credit. 1, -4, -9, -14, . . . (2 points)

My name is Ann [436]

Answer:

$S_n=$ -348

Step-by-step explanation:

We are given the following arithmetic sequence and we are to find the sum of its first 12 terms:

1, -4, -9, -14, . . .

For that, we will use the formula for the sum of the arithmetic mean:

$S_n=\frac{n}{2} (a_1+a_n)$

We know the value of the first term ( $a_n$ ) but we need to find the value of $a_{12}$ . So we will use the following formula:

$a_{12}=a_1+(n-1)d$

$a_{12}=(-4)+(12-1)(5)$

$a_{12}=-59$

Substituting these values in the sum formula to get:

$S_n=\frac{12}{2} (1+(-59))$

$S_n=$ -348

4 0

4 years ago

Read 2 more answers

Choose all values of a that make the following equation true: 3/4 = a/36.

Gekata [30.6K]

9514 1404 393

Answer:

B, D

Step-by-step explanation:

The equation can be solved by multiplying by 36.

3/4 = a/36

a = 36(3/4) = 108/4 = 27

The listed values that make the equation true are 27 and 108/4.

4 0

3 years ago

A helicopter hovers at an altitude that is 1000 feet above a mountain of altitude 5210 feet. A second, taller peak is viewed fro

ehidna [41]

Given:

Height of Mountain A = 5210 feet
Distance of Mountain A from a helicopter above the peak = 1000 feet
Angle of depression:
Mountain B to helicopter = 43 degrees
Mountain B to Mountain A = 19 degrees

First, draw an illustration and label the enumerated given values.

Observe that there are two right triangles formed:

From the triangle formed by the helicopter and Mountain B,

let x = total height of mountain B
y = leg of first triangle (helicopter and mountain b)
h = hypotenuse
Use the Pythagorean Theorem:

cos (43) = y / h

From the second triangle formed by mountain b and a,

cos (19) = (1000 + y) / h

solve for h and y

then, solve for the height of Mountain B:

x = 1000 + y + 5210

6 0

4 years ago