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3 years ago

20 POINTS HELPIf these two rectangles are similar, what is the measure of the missing length d ?

Mathematics

1 answer:

egoroff_w [7]3 years ago

6 0

Answer:

d (or V in the picture) = 16

Step-by-step explanation:

Because the two triangle are similar, the ratios of each of the side lengths should be equal. Therefore, 8/1 should be equal to d/2.

1.) Set up equality of ratios: 8/1 = d/2

2.) Cross multiply: 8*2 = d*1

3.) 16 = d

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Brianna received an overall IQ score of 117 on the Wechsler Scale. This means that Brianna has scored approximately____________

Tresset [83]

Using the normal distribution, it is found that the correct option is:

D. 1; 100

In a <em>normal distribution</em> with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

It measures how many standard deviations the measure is from the mean.

In this problem:

The mean on the Wechsler Scale is of 100, hence $\mu = 100$ .

The standard deviation is of 17, hence $\sigma = 17$ .

Brianna had an score of 117, hence $X = 117$

Then:

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{117 - 100}{17}$

$Z = 1$

Hence, the option d is correct.

To learn more about the normal distribution, you can check brainly.com/question/24663213

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What is the constant of proportionality for number 11?

avanturin [10]

Answer:

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Step-by-step explanation:

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4 years ago

An athlete saved $184. She bought a glove, cleats, and a hat. After her purchases, she still had $39.50. The glove cost three-fi

Mumz [18]

Answer: Cost of the gloves is $ 51

Cost of the cleats is $85

Cost of the hat is $8.50

Cleats cost $76.5 more than the hat.

Step-by-step explanation:

Let the cost of gloves be 'g'

Let the cost of cleats be 'c'

Let the cost of hat be 'h'

Total money she had = $184

Money left after purchasing = $39.50

Money spent = 184 - 39.50

=$144.50

g = (3/5) c

(5/3) g = c

h = (1/6) g

g + c + h = 144.50

g + (5/3) g + (1/6) g = 144.50

(6g + 10g + g) /6 = 144.50

(17g) /6 = 144.50

(17/6) g = 144.50

g = (144.50) (6/17)

g = $51

c = (5/3) g

c = (5/3) (51)

c = $85

h = (1/6) g

h = (1/6) (51)

h = $8.5

Cost of the gloves is $ 51

Cost of the cleats is $85

Cost of the hat is $8.50

Cleats cost $76.5 more than the hat.

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3 years ago