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2 years ago

PLS ANSWER QUESTIONS 1,2,3

Mathematics

1 answer:

Dafna11 [192]2 years ago

7 0

This is a mathematical word problem, so keep that in mind.

Hence, the reading for January 9 is -1°F (Option B)

The reading for Friday in the middle of the month is +1°F (Option C); and

<h3>What is a math word problem?</h3>

A mathematical word problem is a mathematical question that is stated in the form of a sentence. See the answers below.

<h3>What are the answers as given in the question?</h3>

The answers are given in a tabular form to enable proper comprehension:

Date Low-Temperature reading

January 2 -5°F (three degrees lower than that of Jan. 23)
January 9 -1°F (two degrees lower than the low January 16)
January 16 1°F (6 degrees higher than the first Friday day)
January 23 -2°F
January 30 5°F (Seven degrees higher than the Friday before)

Learn more about word problems at:
brainly.com/question/13818690
#SPJ1

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1. What is the constant of proportionality, k,<br><br><br> of Kevin's wage? Greg's? Savannah's?

Gala2k [10]

Answer:

Part a) The constant of proportionality of Kevin's wage is $k=\$8.25\ per\ hour$

Part b) The constant of proportionality of Greg's wage is $k=\$9.00\ per\ hour$

Part c) The constant of proportionality of Savannah's wage is $k=\$9.50\ per\ hour$

Step-by-step explanation:

See the attached figure to better understand the problem

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

To find out the constant of proportionality k , divide the variable y (total earned) by the variable x (number of hours)

<em>Kevin's wage</em>

Take any point from the table

I take the point (2,16.50)

$k=\frac{16.50}{2}=\$8.25\ per\ hour$

Take any point from the table

I take the point (3,27.00)

$k=\frac{27.00}{3}=\$9.00\ per\ hour$

<em>Savannah's wage</em>

Take any point from the table

I take the point (2,19.00)

$k=\frac{19.00}{2}=\$9.50\ per\ hour$

3 0

3 years ago

PLEASE HELP<br> Identify the first five terms of the sequence in which a, = 3n2 - 1.

Neko [114]

Step-by-step explanation:

you cannot just put the actual numbers in and calculate ?

and you can't provide the correct problem statement, as it seems.

I assume you mean

an = 3n² - 1

a sequence starts with a1, so, n>=1

a1 = 3×1² - 1 = 3-1 = 2

a2 = 3×2² -1 = 3×4 - 1 = 12 - 1 = 11

a3 = 3×3² - 1 = 3×9 - 1 = 27 - 1 = 26

a4 = 3×4² - 1 = 3×16 - 1 = 48 - 1 = 47

a5 = 3×5² - 1 = 3×25 - 1 = 75 - 1 = 74

there, that is all there is to it. you really needed help with that ?

6 0

3 years ago

If H is the center of the circle find the measurement of GJI

Over [174]

We know that

mGJI+117.33°=360° (full circle)
so
mGJI=360°-117.33°-----> 242.67°

the answer is
242.67°

3 0

4 years ago

Let X be the damage incurred (in $) in a certain type of accident during a given year. Possible X values are 0, 1000, 5000, and

lana [24]

Answer:

Expected profit policy 1 = $40

Expected profit policy 2 = $20

Expected profit policy 3 = $10

Step-by-step explanation:

X values | Probability P(x)

0 | 0.80

1,000 | 0.08

5,000 | 0.10

10,000 | 0.02

A particular company offers three different policies:

Policy 1: $200 deductible with a $780 premium

Policy 2: $500 deductible with a $700 premium

Policy 3: $1000 deductible with a $590 premium

The company pays X - Y in damages if X > Y and 0 otherwise.

So the expected profit is given by

Expected profit = Premium amount - Expected payout

Expected profit = Premium amount - [ (X - deductible) × P(x) ]

Expected profit Policy 1:

E(x) = $780 - [ 0×0.80 + (1,000 - 200)×0.08 + (5,000 - 200)×0.10 + (10,000 - 200)×0.02 ]

E(x) = $780 - [ 0 + 64 + 480 + 196 ]

E(x) = $780 - $740

E(x) = $40

Expected profit Policy 2:

E(x) = $700 - [ 0×0.80 + (1,000 - 500)×0.08 + (5,000 - 500)×0.10 + (10,000 - 500)×0.02 ]

E(x) = $700 - [ 0 + 40 + 450 + 190 ]

E(x) = $700 - $680

E(x) = $20

Expected profit Policy 3:

E(x) = $590 - [ 0×0.80 + (1,000 - 1,000)×0.08 + (5,000 - 1,000)×0.10 + (10,000 - 1,000)×0.02 ]

E(x) = $590 - [ 0 + 0 + 400 + 180 ]

E(x) = $590 - $580

E(x) = $10

Therefore, the expected profits for the three policies are:

Expected profit policy 1 = $40

Expected profit policy 2 = $20

Expected profit policy 3 = $10

8 0

3 years ago

What is the point estimate for the number of cars sold per week for a sample consisting of the following weeks: 1, 3, 5, 7, 10,

Kamila [148]

Answer: A.

Step-by-step explanation:

Hope this helps!

4 0

3 years ago