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3 years ago

Write two word phrases for each expression. t + 23

Mathematics

1 answer:

e-lub [12.9K]3 years ago

8 0

Answer:

a number, t, increased by 23

a number, t, plus 23

Step-by-step explanation:

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Draw a line representing the "rise" and a line representing the "run" of the line. State the slope of the line in simplest form.

slega [8]

Answer:

9/13

Step-by-step explanation:

rise = y₂ - y₁ = -1 - (-10) = -1 + 10 = 9

run = x₂ - x₁ = 9 - (-4) = 9 + 4 = 13

Step-by-step explanation:

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3 years ago

Three angles in a quadrilateral measure 90, 53, and 74. What is the measure of the fourth angle

lozanna [386]

In a quadrilateral the interior angles add up to 360 degrees so if you subtract 90, 53, and 74 from 360 you get the fourth angle

360-90-53-74 = 143

D. 143

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3 years ago

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Principal = $500 Interest rate =5% Time = 5 years What is the interest earned?

Masteriza [31]

Answer:

125dollars

Step-by-step explanation:

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3 years ago

You are to take a multiple-choice exam consisting of 64 questions with 5 possible responses to each question. Suppose that you h

stepan [7]

Answer:

(a) The expected score is 12.8

(b) The standard deviation is 3.2 and variance is 10.24

Step-by-step explanation:

Consider the provided information.

You are to take a multiple-choice exam consisting of 64 questions with 5 possible responses to each question.

Here n=64 p=1/5 and q=1-1/5=4/5

Part (a) we need to find the expected score on the exam.

Expected = np

Expected score = number of questions × P(right)

$Score = 64 \times \frac{1}{5} = 12.8$

Hence, the expected score is 12.8

Part (b) Compute the variance and standard deviation of x.

Standard Deviation: $\sigma =\sqrt{npq}$

Now calculate the standard deviation as shown:

$\sigma =\sqrt{64\times \frac{1}{5}\times \frac{4}{5}}$

$\sigma =\sqrt{\frac{256}{25}}$

$\sigma =\frac{16}{5}=3.2$

Variance: $\sigma^2 =npq$

$\sigma^2 =64\times \frac{1}{5}\times \frac{4}{5}$

$\sigma^2 =\frac{256}{25}$

$\sigma^2 =10.24$

Hence, the standard deviation is 3.2 and variance is 10.24

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4 years ago

What is the quotient of 64/-11

Free_Kalibri [48]

Answer:

-5.82

Possible by long devison and the rule that if there is one negitive then the answer is negitive

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3 years ago