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VikaD [51]
3 years ago
7

jessica is selling books during the summer to earn money for college. She earns a commission on each sale but has to pay for her

own expenses. After a month of driving from neighborhood to neighborhood and walking door-to-door, she figures out that her weekly earnings are approximately a linear function of the number of doors she knocks on. She writes the equation of the function like this: E(x) = 10x - 30, where x is the number of doors she knocks on during the week and E(x) is her earnings for the week in dollars. Which of the following are reasonable interpretations of the y-inte Mathematics schrodinger
Mathematics
2 answers:
wariber [46]3 years ago
5 0
E(x) = 10x - 30

the y int is -30........that means her expenses for the week was $ 30
sveticcg [70]3 years ago
5 0

Answer:

It can be interpreted that Jessica will lose $10 per week if she does not know on any doors.

Step-by-step explanation:

Jessica earns a commission on each sale but has to pay for her own expenses.

The weekly earnings are shown as: E(x)=10x-30

Now, lets check how much she earns with each door knock or 'x'

When x = 5

E(x)=10(5)-30=50-30=20

When x = 6

E(x)=10(6)-30=60-30=30

When x = 7

E(x)=10(7)-30=70-30=40

We can see that with each increased 'x' (door knocks) , Jessica is earning $10.

Thus, it can be interpreted that Jessica will lose $10 per week if she does not know on any doors.

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Annual income of A is 10% more than of B whereas income of B is 20% more than that of C. If monthly income of C is $ 2000 then w
Vanyuwa [196]

Answer:

7040

Step-by-step explanation:

C= 2000

B = 20/100 x 2000 = 400 + 2000 = 2400

A= 10/100 x 2400 = 240+2400= 2640

2000 + 2400 + 2640 = 7040

3 0
2 years ago
OOOO
Ahat [919]

The correct answer is (C). The sample is a subset of the population, and the parameter is a characteristic of the population of interest.

4 0
3 years ago
TO
daser333 [38]

Answer:

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Step-by-step explanation:

do it it works

8 0
2 years ago
Ms. Mwanted to estimate the height of the Republic Plaza building in downtown Denver. She has an app on
Volgvan

Answer:

<em>The height of the bullding is 717 ft</em>

Step-by-step explanation:

<u>Right Triangles</u>

The trigonometric ratios (sine, cosine, tangent, etc.) are defined as relations between the triangle's side lengths.

The tangent ratio for an internal angle A is:

\displaystyle \tan A=\frac{\text{opposite leg}}{\text{adjacent leg}}

The image below shows the situation where Ms. M wanted to estimate the height of the Republic Plaza building in downtown Denver.

The angle A is given by his phone's app as A= 82° and the distance from her location and the building is 100 ft. The angle formed by the building and the ground is 90°, thus the tangent ratio must be satisfied. The distance h is the opposite leg to angle A and 100 ft is the adjacent leg, thus:

\displaystyle \tan 82^\circ=\frac{h}{100}

Solving for h:

h = 100\tan 82^\circ

Computing:

h = 711.5 ft

We must add the height of Ms, M's eyes. The height of the building is

711.5 ft + 5 ft = 716.5 ft

The height of the building is 717 ft

7 0
3 years ago
Put as the answer a question your going to ask and then let me answer it and then mark brainlest please.
Anvisha [2.4K]

Answer:

Select all the expressions that equal -2 + 5.

A

-2 - (-5)

B

-2 - 5

C

5 - 2

D

5 + (-2)

Step-by-step explanation:

7 0
3 years ago
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