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irinina [24]
3 years ago
12

How many units long is a segment whose endpoints are (2,3) and (7,15)?

Mathematics
1 answer:
Ahat [919]3 years ago
5 0

Answer:

13 units

Step-by-step explanation:

Distance formula: d = \sqrt{(x2-x1)^2 + (y2-y1)^2}

Simply plug in your variables

d = \sqrt{(7-2)^2 + (15-3)^2}

d = \sqrt{5^2 + 12^2}

d = \sqrt{25 + 144}

d = \sqrt{169}

d = 13

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dezoksy [38]

Answer:

negative square root will result in zero x-intercepts

Step-by-step explanation:

there are no x-intercepts because if you use the quadratic formula on the equation you get a negative square root which results in zero x-intercepts

in this case, a=-1, b=4, c=-12

[-4±√4² - 4(-1)(-12)] / 2(-1)

= [-4 ± √16-48] / -2

= -4 ± √-32 / -2

7 0
3 years ago
60 people are buying cars today. 36 are buying silver cars. What percent are buying non-silver cars?
Alla [95]

Answer:

40%

Step-by-step explanation:

5 0
3 years ago
A lightbulb has a power of 60 W and is used for 16 hours. A toaster oven has a power of 1500 W
krek1111 [17]

a. The lightbulb uses the energy of 960 W or 9.60 kW.

Step-by-step explanation:

Step 1:

To determine the energy used by the appliances we need to understand the equation

power = \frac{energy}{time} .

To determine the energy used, we multiply the power of the appliance with the amount of time it has been used for.

Step 2:

The lightbulb has a power of 60 W and is used for a period of 16 hours.

The energy used by the lightbulb = 60(16) = 960 W = 0.96 kW.

The toaster oven has a power of 1,500 W and is used for 0.75 hours.

The energy used by the toaster oven = 1,500(0.75) = 1,125 W = 1.125 kW.

6 0
4 years ago
What does the "a" in an exponential equation represent?
nika2105 [10]

Answer:

the variable.

Step-by-step explanation:

6 0
3 years ago
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Mrrafil [7]

Answer:

the answer is a

Step-by-step explanation:

3 0
3 years ago
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