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Anna007 [38]
3 years ago
7

Pls help!! 15 points

Mathematics
2 answers:
Ronch [10]3 years ago
6 0
This says only 8 points not 15
Ksenya-84 [330]3 years ago
3 0

Answer:

i can't see the picture

Step-by-step explanation:

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I don’t know how to set this up
kodGreya [7K]

Answer:

9

Step-by-step explanation:

Set it up as the following -

3:8 = x:24.

Now cross multiply - 3 * 24 = 8x

72 = 8x

Now divide both sides by 8.

9 = x

4 0
3 years ago
It is estimated that 30% of households own a riding lawn mower. A sample of 17 households is studied. What is the standard devia
alina1380 [7]

Answer:

1.89 is the standard deviation of households who own a riding mower

Step-by-step explanation:

Let the random variable X denote the number of households owning a riding lawn mower. From the given information, X will be a Binomial random variable with parameters; n = 17 and  p = 30% = 0.3

The standard deviation of X;

\sqrt{n*p*(1-p)}

\sqrt{17*0.3*(1-0.3)} =1.89

7 0
3 years ago
What is the area of the squares with sides (2x-3)feet?​
LUCKY_DIMON [66]

Answer:

4x^2 -12x +9   ft^2

Step-by-step explanation:

The area of a square is

A = s^2 where s is the side length

A = (2x-3) ^2

A = (2x-3) (2x-3)

FOIL

first 2x*2x =4x^2

outer 2x (-3) = -6x

inner -3*2x = -6x

last -3*-3 = 9

Add them together

4x^2 -6x-6x +9

Combine like terms

4x^2 -12x +9

The area is 4x^2 -12x +9 ft^2

5 0
3 years ago
Read 2 more answers
A spinner is divided into 4 sections. The spinner is spun 100 times. The probability distribution shows the results.
Vitek1552 [10]

P(1≤x≤3) defined the probability that the result is between 1 and 3, included. You can answer this question in two ways:

1. Sum the probabilities of good events:

From the graph, we have

P(x=1) = 0.32,\quad P(x=2) = 0.24,\quad P(x=3) = 0.28

So,

P(1\leq x \leq 3) = 0.32+0.24+0.28 = 0.84

2. Use complementary probabilities

Asking that the result is 1, 2 or 3 is the same as asking that the result is not 4. The probability that the result is 4 is 0.16, so the probability that the result is not 4 will be

P(x\neq 4) = 1-P(x=4) = 1-0.16=0.84

The result is obviously the same.

5 0
3 years ago
Read 2 more answers
Solve for g: C = 1/2gk
sweet-ann [11.9K]

Answer:

G = \frac{C(2)}{k}

Step-by-step explanation:

C = 1/2gk

First you want to multiple both sides by 2 to get rid of that fraction and you get

C (2) = gk then you divide both sides by k to isolate the g and your left with

G= \frac{C(2)}{k}

Hope this helps

5 0
2 years ago
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