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yKpoI14uk [10]
2 years ago
6

I need help I don’t remember these

Mathematics
1 answer:
Levart [38]2 years ago
6 0

4. Using the given formula, replace t with 8 seconds and multiply:

343 x 8 = 2,744 meters.

5. Domain is the X value, replace x with 1/4 and solve:

1/4^2 + 2 = 2 1/8

y= 2 1/8

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What is the slope of a line perpendicular to the line whose equation is x-y=6x. Fully reduce your answer.
Over [174]

Answer  

1/5

Step-by-step explanation:

The slope of a perpendicular line is the negative reciprocal. Since y=-5x(m=-5), the slope is -(-1/5) which is 1/5

5 0
3 years ago
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The table shows the time Merrida spent driving and the number of miles she drove. She drove the same number of miles each hour.
Oksi-84 [34.3K]

Answer:

35 miles per hour

Step-by-step explanation:

175 -140 = 35

35/1 = 35

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3 years ago
What is the area of this triangle ?
oee [108]

Answer:

Area of triangle is 9.88 units^2

Step-by-step explanation:

We need to find the area of triangle

Given E(5,1), F(0,4), D(0,8)

We will use formula:

Area\,\,of\,\,triangle =\sqrt{s(s-a)(s-b)s-c)} \\where\,\, s = \frac{a+b+c}{2}

We need to find the lengths of side DE, EF and FD

Length of side DE = a = \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}

Length of side DE = a = =\sqrt{(5-0)^2+(1-8)^2}\\=\sqrt{(5)^2+(-7)^2}\\=\sqrt{25+49}\\=\sqrt{74}\\=8.60

Length of side EF = b = \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}

Length of side EF = b = =\sqrt{(0-5)^2+(4-1)^2}\\=\sqrt{(-5)^2+(3)^2}\\=\sqrt{25+9}\\=\sqrt{34}\\=5.8

Length of side FD = c = \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}

Length of side FD = c = =\sqrt{(0-0)^2+(8-4)^2}\\=\sqrt{(0)^2+(4)^2}\\=\sqrt{0+16}\\=\sqrt{16}\\=4

so, a= 8.60, b= 5.8 and c = 4

s = a+b+c/2

s= 8.6+5.8+4/2

s= 9.2

Area of triangle==\sqrt{s(s-a)(s-b)s-c)}\\=\sqrt{9.2(9.2-8.6)(9.2-5.8)(9.2-4)}\\=\sqrt{9.2(0.6)(3.4)(5.2)}\\=\sqrt{97.5936}\\=9.88

So, area of triangle is 9.88 units^2

4 0
3 years ago
11.) Mrs. Collins is buying supplies for her classroom. Pencils cost
ki77a [65]

Answer:

the total cost will be $14

Step-by-step explanation:

a) 0.05p + 0.45f

b) 0.05(100) + 0.45(20)=

5+9

14

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2 years ago
Every whole number is a real number . <br> True or false
grandymaker [24]
True. No imaginary number is considered "whole", all whole numbers are rational and real.
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