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3 years ago

This diagram shows four small squares and one rectangle composed of 10 small.

Mathematics

1 answer:

horsena [70]3 years ago

4 0

9514 1404 393

Answer:

(A) yes; each small square could represent 10 units

(B) no; there are a total of 14 small squares. No reasonable relationship maps this to 410

Step-by-step explanation:

(A) The total number of small squares is 14, so we expect any number represented by the diagram to be a multiple of 14. If each small square represents 10 units, then the 4 small squares represent 40 units, and the rectangle represents 100 units, for a total of 140 units being represented in the diagram. Andre is correct.

(B) The above argument suggests that 410 will not be reasonably represented by the diagram. To represent 410, we expect 4 tokens that each represent 10 of a smaller token. The rectangle of 10 squares would be such a token, but the diagram has only one of those, not 4 of them. Similarly, we expect 1 of a smaller token, but the diagram has 4 of them. In any event, 410 is not a multiple of 14, so there is no (integer) value that can be assigned to a small square that lets the diagram represent 410.

I do not agree with Diego.

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The GRE is an entrance exam that many students are required to take in order to apply to graduate school. In 2014, the combined

zlopas [31]

The probability that a randomly selected score is greater than 334 will be 0.02275.

<h3>What is a normal distribution?</h3>

The Gaussian Distribution is another name for it. The most significant continuous probability distribution is this one. Because the curve resembles a bell, it is also known as a bell curve.

The z-score is a statistical evaluation of a value's correlation to the mean of a collection of values, expressed in terms of standard deviation.

The GRE is an entrance exam that many students are required to take in order to apply to graduate school. In 2014, the combined scores for the Verbal and Quantitative sections were approximately normally distributed with a mean of 310 and a standard deviation of 12.

Then the probability that a randomly selected score is greater than 334 will be

The z-score is given as

z = (x - μ)/σ

z = (334 - 310)/12

z = 24/12

z = 2

Then the probability will be

P(x > 334) = P(z > 2)

P(x > 334) = 1 - P(x<334)

P(x > 334) = 1 - 0.97725

P(x > 334) = 0.02275

More about the normal distribution link is given below.

brainly.com/question/12421652

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6 0

2 years ago

Solve xy − 2 = k for x.

MA_775_DIABLO [31]

Isolate x
So xy - 2 = k
Then
xy = k + 2

x = (k+2)/y

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3 years ago

Rico can walk 3 miles in the same amount of time that Donna can walk 2 miles. Rico walks at a rate 2 miles per hour faster than

tatyana61 [14]

Answer:

$13$

Step-by-step explanation:

Donna's Rate is $R$

Rico's Rate is $R+2$

$\frac{R}{R+2}=\frac{2}{3}$

Cross-Multiply

$2(R+2)=32$

$2R+4=3R$

$4=R$

Donna's Rate is $R=4$

Rico's Rate is $R+2=6$

$\frac{6(130)}{60} = \frac{130}{10}=13$

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3 years ago

In a parallelogram, explain how opposite sides are congruent

Otrada [13]

There's a theorem that states:
"<span>If a quadrilateral is a parallelogram, </span>it has<span> 2 sets of opposite sides congruent.</span><span>"
</span>
Hope this helps ;)

6 0

4 years ago

Please help!!!step by step

lana [24]

Answer:

slope = -1/3, y-intercept (0, -3), x-intercept (-9 , 0)

Step-by-step explanation:

3 - x = 3(y + 4)

3 - x = 3y + 12

3y = 3 - x - 12

3y = -x -9

y = -1/3 x - 3

slope = -1/3

when x = 0 (y-intercept)

y = -1/3 × 0 - 3

y = -3

y-intercept (0, -3)

when y = 0 (x-intercept)

0 = -1/3 x - 3

1/3 x = -3

x = -9

x-intercept (-9 , 0)

6 0

3 years ago