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nekit [7.7K]
3 years ago
8

R=l+3w/2 solve for w

Mathematics
1 answer:
Thepotemich [5.8K]3 years ago
3 0

Answer:

w = (2r - 2)/3

Step-by-step explanation:

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Grapes cost $2.59 per pound. James buys a bag of grapes that weighs 4.73 pounds.
Anna35 [415]

2.59 * 4.73 = cost of grapes

2.59 * 4.73 = 12.2507

$12.25 for that bag

5 0
2 years ago
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How many square feet of out door carpet will we need for this hole
Vadim26 [7]
Hey! Let me help you on this one.

As you can see, this is a very complex shape, and this might confuse you at first. Don't fear, there is a very easy and fun way to solve it.

Take a closer look at the problem. Do you notice anything? It consists of few different shapes that might be much easier for you to find area of. 

For example, as you can see on the image I have sent you, these are the shapes present in the figure.

On this image, only two types of figures are present - triangle and a rectangle. Both shapes have a very easy area formula.

Triangle - S=  \frac{a*b}{2}

Rectangle - S=a*b

Using these formulas, let's find the area of this complex figure by solving for each individual shape, and then, adding everything together.

Triangle at the bottom has a side of 4 feet, and an unknown second side. We can find it by getting the difference of 12 feet and 8 feet.

Why you might ask? Well, if you look at it closer, the difference is exactly the length of the side we need.

12-8=4

Neat! It's four as well. Let's start solving for its area.

S= \frac{4*4}{2}
S=8

Area of the first triangle is 8 feet squared. Let's get into the second triangle. It's right above this one!

Length of its right side is 3 feet, and the length of the bottom side is the same as the one we found few steps back - four feet.

S= \frac{4*3}{2}
S= 6

Awesome! Area of the second triangle is 6 feet squared. Let's take a closer look at the last figure - rectangle.

S=8*3
S=24

Area of the rectangle is 24 feet squared. Done, we have all the areas of individual shapes. Let's add them together.

24+6+8=38

Answer: The area of this figure is 38 feet squared

5 0
4 years ago
What is the difference between internal validity and external validity​? A. A statistical analysis is said to have external vali
Arada [10]

Answer:

B

Step-by-step explanation:

Internal validity means that it it valid for the population within the study internal = study). While external validity means that it has wider applications and is valid for people outside the study or in different setting. In other word, a statistical analysis has internal validity if the statistical inferences about causal effects apply for those being studied. It has external validity when if can be generalized to other settings and populations. The answer choice which best matches this is B.

Answer choices:

A. A statistical analysis is said to have external validity if the statistical inferences about causal effects are valid for the population being studied. The analysis is said to have internal validity if conclusions can be generalized to other populations and settings.

B. A statistical analysis is said to have internal validity if the statistical inferences about causal effects are valid for the population being studied. The analysis is said to have external validity if conclusions can be generalized to other populations and settings.

C. A statistical analysis is said to have internal validity if the statistical inferences about causal effects can only be verified by a few researchers. The analysis is said to have external validity if conclusions can be verified by many researchers.

D. Internal validity and external validity are equivalent.

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3 years ago
If the number of candy canes is proportional to the price and 12 candy canes cost $3.00, how much would it cost for 20 candy can
VMariaS [17]
12/$3=20/x is the formula. Then cross multiply to get 12x=60, so x=$5.
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3 years ago
How much is 17% out of 100%
sladkih [1.3K]

Answer:

17/100

Step-by-step explanation:

8 0
3 years ago
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