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OLEGan [10]
3 years ago
5

Help me This is khan academy so plz help

Mathematics
2 answers:
IrinaK [193]3 years ago
8 0

Answer:

C

Step-by-step explanation:

:)

fredd [130]3 years ago
7 0

Answer:

C

Step-by-step explanation:

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PLS HELP RQ!!!!!!!!!!!!!11
Naya [18.7K]

Answer:

3 3/4 cubic inches

Step-by-step explanation:

2.5*1.5*1

4 0
3 years ago
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The function y=-x^2+65x+256 models the number y of subscribers to a website, where x is the number of days since the website lau
Wittaler [7]

Answer:

y = 30x+290

Step-by-step explanation:

Given

y=-x^2+65x+256

Required

The linear function of a competitor's website

On day 1, both websites have the same subscribers.

This implies that:

y=-x^2+65x+256

Substitute: x =1

y=-(1)^2+65*1+256

y=-1+65+256

y=320

This implies:

(x_1,y_1) = (1,320)

On day 34, both websites have the same subscribers.

This implies that:

y=-x^2+65x+256

Substitute: x =34

y=-(34)^2+65*34+256

y=-1156+2210+256

y=1310

This implies:

(x_2,y_2) = (34,1310)

To calculate the linear function of the competitor, we have:

(x_1,y_1) = (1,320)

(x_2,y_2) = (34,1310)

Calculate slope (m)

m = \frac{y_2 - y_1}{x_2 -x_1}

m = \frac{1310 - 320}{34-1}

m = \frac{990}{33}

m = 30

The equation is then calculated as:

y = m(x - x_1) + y_1

This gives:

y = 30 * (x - 1) + 320

Open bracket

y = 30x - 30 + 320

<em></em>y = 30x+290<em> --- This represents the linear function of the competitor's website</em>

5 0
2 years ago
Find the measures of the interior angles and write down the steps please help me and ill mark You brainliest!!!
Ostrovityanka [42]

Answer:

135°

Step-by-step explanation:

AFE + FED + ABC + BCD + CDE + FAB = 720° ( Given )

100 + 135+ 110+149+91 + FAE = 720

585 + FAE = 720

FAE = 720- 585 = 135

4 0
3 years ago
Nelsons manufactures baseballs at a cost of $7.50 each with fixed costs of $10,000. If one baseball sells for $12, how many must
Allushta [10]
Profit = revenue - expenses
12000 = 12x - (7.50x + 10,000)
12,000 = 12x - 7.50x - 10,000
12,000 + 10,000 = 4.5x
22,000 = 4.5x
22,000 / 4.5 = x
4888.88 rounds to 4889 = x......4889 baseballs

4 0
3 years ago
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Plz help me out ASAP
kotykmax [81]

Answer:

B is correct

Step-by-step explanation:

Area after dilation = Area x (k)^2

3 0
3 years ago
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