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3 years ago

CAN SOMEONE PLEASE HELP ME

Mathematics

2 answers:

frez [133]3 years ago

7 0

Answer:

Step-by-step explanation:

natulia [17]3 years ago

7 0

⟟ think point A i'm not sure sorry if i'm wrong

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Equivalent ratios to 16:12 and 12:16

gtnhenbr [62]

It is 36:24 and 24:36

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3 years ago

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Solve for x. Enter the solutions from least to greatest. Round to two decimal places. (x + 8)^2 - 7 = 0

Karolina [17]

Answer:

= − 5.35424868 , − 10.64575131

Step-by-step explanation:

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3 years ago

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Find the value of x such that the area of a triangle whose vertices have coordinates (6, 5), (8, 2) and (x, 11) is 15 square uni

Serjik [45]

Answer:

$x =12\ or\ -8$

Step-by-step explanation:

Given

$(x_1,y_1) = (6,5)$

$(x_2,y_2) = (8,2)$

$(x_3,y_3) = (x,11)$

$Area = 15$

Required

Find x

The area is calculated as thus:

$Area = \frac{1}{2}|x_1(y_2 - y_3) + x_2(y_3 - y_1) + x_3(y_1 - y_2)|$

Substitute values

$15 = \frac{1}{2}|6*(2 - 11) + 8*(11 - 5) + x(5 - 2)|$

$15 = \frac{1}{2}|6*(-9) + 8*(6) + x(3)|$

$15 = \frac{1}{2}|-54 + 48 + 3x|$

$15 = \frac{1}{2}|-6 + 3x|$

Multiply through by 2

$2 * 15 = \frac{1}{2}|-6 + 3x| * 2$

$30 = |-6 + 3x|$

Remove absolute sign

$30 = -6 + 3x\ or\ -30 = -6 + 3x$

Add 6 to both sides

$36 = 3x\ or\ -24 = 3x$

Divide by 3

$12 = x\ or\ -8 = x$

$x =12\ or\ -8$

<em>So, the coordinates are (-8, 11) or (12,11)</em>

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3 years ago

With the equation 2/10=4/a-3 what does a equal?

shusha [124]

Answer:

Step-by-step explanation:

Since 2/10 = 4/20, we know that a-3 = 20, so a = 20 + 3 = 23.

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3 years ago

For every 3 minutes that Ryan runs on the treadmill, he burns 28

malfutka [58]

Answer:

He will burn 224 calories.

Step-by-step explanation:

Multiply 8 by 28 to get your answers because he runs 8 times more in 24 minutes.

:))

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3 years ago