What is the nearest 1/4 inch to 1 1/2 inches?

Find the area of this circle. Use 3 for pi

ohaa [14]

Step-by-step explanation:

given pi value= 3

radius=7

we know,

area of a circle(A)= πr²

= 3×7²

=147cm²

5 0

2 years ago

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Which rate can you set StartFraction 7 miles Over 1 hour EndFraction equal to in order to find the distance traveled in 49 hours

svet-max [94.6K]

Answer (It should be D, or ? miles

------------

49 hours

Step-by-step explanation:

If i'm wrong then oh-well i took my unit test online then got the answer wrong so i could see which one was correct before i actually took the unit test... hope i'm correct for you..this is correct on my unit test practice!

6 0

2 years ago

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Solve the right triangle. Round decimals to the nearest tenth

Tems11 [23]

Answer:

j = 19.6

k = 25.9

J = 49°

Step-by-step explanation:

The mnemonic SOH CAH TOA is intended to remind you of the relationships between sides and angles in a right triangle.

<h3>Analysis</h3>

The given side is opposite the given angle. We want to find the other acute angle and the missing sides: the hypotenuse, and the adjacent side. The relations involving the opposite side are ...

Sin = Opposite/Hypotenuse ⇒ Hypotenuse = Opposite/Sin

Tan = Opposite/Adjacent ⇒ Adjacent = Opposite/Tan

Of course, the acute angles in a right triangle are complementary, so we can use that fact to find the missing angle.

<h3>Application</h3>

Hypotenuse = Opposite/Sin

IJ = 17/sin(41°) ≈ 25.9

Adjacent = Opposite/Tan

IK = 17/tan(41°) ≈ 19.6

Angle J = 90° -41° = 49°

In summary, ...

j = 19.6

k = 25.9

J = 49°

8 0

2 years ago

What is the equation of the line graphed below?

vesna_86 [32]

Answer:

The answer to your question is: letter B

Step-by-step explanation:

Data

A (-5, 4)

B (4, 1)

Formula

slope = m = $\frac{1 - 4}{4 + 5}$

m = $\frac{-3}{9}$ = $\frac{-1}{ 3}$

Point slope

(y - 4) = $\frac{-1}{3}$ (x + 5)

4 0

2 years ago

The mean and standard deviation of a normal distribution are 150 and 12 respectively. What percentage of values lie between:

Semenov [28]

Answer:

Step-by-step explanation:

Use a calculator with built-in statistical functions. The function applying here is normcdf(, the "cumulative density function."

(a) The percentage of values lying between 138 and 162 is

norm(138,162, 150, 12), which comes out to 0.683, or 68.3%.

(b) Find norm(126, 174, 150,12): 0.945, or 94.5%

(c) Find norm(126,162, 150,12); 0.819, or 81.9%

(d) Find norm(162, 174,150,12): 0.136, or 13.6%

8 0

3 years ago

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