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3 years ago

A garden has a diameter of 8 yards. What is the area of the garden. use 3.14 for pi.

1 answer:

6 0

The volume of a gas in a container varies inversely with the pressure on the gas. If a gas has a volume of 250 cubic inches under a pressure of
4 pounds per square inch, what will be its volume if the pressure is increased to 20 pounds per square inch? (Round off your answer to the nearest cubic inch.)

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What is the slope of the line through the points (0, 0) and (2, 6)

EleoNora [17]

For this problem, you would use the slope formula, or m=(y2-y1)/(x2-x1). So, let's put in what we know.

The x's and y's correspond with our coordinates. So let's plug that in:

m=(6-0)/(2-0)
m=(6)/(2)
m=3

So, the slope of your line is 3.

6 0

3 years ago

to download movies off the internet, you must pay 1.99 per movie,plus one time fee of 5.50 write an expression to show the total

Oksanka [162]

1.99x+5.5= total cost

8 0

3 years ago

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URGENT EXPLANATION AND SOLVING

Alex787 [66]

$\cfrac{a}{\sin(a)} = \cfrac{b}{\sin(b)} 
$

$\cfrac{31}{\sin(42)} = \cfrac{37}{\sin(x)} 
$

$31\sin(x) = 37 \sin(42)$

$\sin(x) = \cfrac{37 \sin(42) }{31}$

$x = \sin^{-1}(\cfrac{37 \sin(42) }{31} )$

$x = 53 \textdegree$

Answer: 53°

7 0

3 years ago

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The average systolic blood pressure was found to be 140 mm for people who have high responsibility jobs, specifically investment

9966 [12]

Answer:

Option B)

$H_{0}: \mu = 140\text{ mm}\\H_A: \mu < 140\text{ mm}$

Step-by-step explanation:

We are given the following in the question:

Hypothesis:

The doctors and u=instructor claims that practicing yoga reduces blood pressure and hence is beneficial to people.

Population mean, μ = 140 mm

Sample mean, $\bar{x}$ = 139 mm

Sample size, n = 51

Sample standard deviation, s = 5 mm

Thus, we can design the null hypothesis and alternate hypothesis as

$H_{0}: \mu = 140\text{ mm}\\H_A: \mu < 140\text{ mm}$

The null hypothesis states that the population have a blood pressure of 140 mm. The alternate hypothesis states that yoga reduces the blood pressure and the sample has a blood pressure less than 140 mm.

Thus, the correct answer is

Option B)

$H_{0}: \mu = 140\text{ mm}\\H_A: \mu < 140\text{ mm}$

3 0

2 years ago

What is the solution to the equation 2(x - 3) = 2x + 5

Genrish500 [490]

Hello there!

2(x - 3) = 2x + 5

Let's start by using the distributive property for the left side.

(2)(x) + (2)(-3) = 2x + 5

2x - 6 = 2x + 5

Then we need to add 6 to both sides

2x - 6 + 6 = 2x + 5 + 6

2x = 2x + 11

We need to transfer 2x on the left side, we gonna do that by subtracting 2x from both sides

2x - 2x = 2x + 11 - 2x

0 = 11

Thus,

There are no solutions.

I hope this helps!

Good luck with your career!

7 0

3 years ago

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