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3 years ago

PLEASE HELPPP ME!!!

Mathematics

1 answer:

poizon [28]3 years ago

6 0

Answer:

-28.5

-5

-11.8

-4.5

Step-by-step explanation:

From that data provided for Monday

Temperature at noon = temperature at midnight + the change in temperature

-32 + 20 = -12

Temperature on Tuesday's noon = -17.5 + (-11) = -28.5

Temperature on Friday's noon = -21.8 + 17.3 = -4.5

From that data provided for Monday

Temperature at midnight = temperature at noon - change in temperature

-12 - 20 = -32

Temperature on Wednesday's midnight = 10.5 - 15.5 = -5

From that data provided for Monday,

change in temperature = temperature at noon - temperature at midnight

-32 - (-12) = 20

Change in temperature on Thursday = -24 - (-12.2) = -11.8

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4 years ago

Read 2 more answers

Given the triangle below, what is m < b, rounded to the nearest tenth?

ahrayia [7]

Option A:

m∠B = 42.1°

Solution:

Given data:

b = 18, c = 15 and m∠C = 34°

Using sine formula:

$$\frac{b}{\sin B}=\frac{c}{\sin C}$

Substitute the given values.

$$\frac{18}{\sin B}=\frac{15}{\sin 34^\circ}$

Do cross multiplication.

$${18} \times {\sin 34^\circ}={15} \times{\sin B}$

Divide by 15 on both sides.

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Switch the sides.

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3 years ago

he number of homes sold by a realtor during a month has the following probability distribution: Number Sold Probability 0 0.20 1

madreJ [45]

Answer: 1.2

Step-by-step explanation:

Given the probability distribution :

Number Sold(x) ____0 ______ 1 _______ 2

Probability p(x) ___0.20 ______0.40 ___ 0.40

The expected number of homes sold :

Expected value (E(x)) = Σ (x * p(x))

= (0 * 0.2) + (1 * 0.4) + (2 * 0.4)

= 0 + 0.4 + 0.8

= 1.2

5 0

3 years ago