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3 years ago

Word problem with 9.5*(8+12.5)

Mathematics

2 answers:

e-lub [12.9K]3 years ago

6 0

Answer:

88.5

Step-by-step explanation:

First you multiple 9.5 and 8 and you should get 76.0

last you add 12.5 and 76.0 and you should get 88.5

and make sure you line up the decimals when adding.

hope this helps

nalin [4]3 years ago

5 0

(9.5 x 8) =76
(12.5 x 9.5)= 118.75
76+118.75= 194.75

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Quadrilateral JKLM is graphed with vertices at J(-2,2), K(-1,-5), L(4,0), and M(3,7).

AveGali [126]

Answer:

Question (a)

Midpoint of a line segment:

$M=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)$

Given:

J = (-2, 2)
L = (4, 0)

$\implies \textsf{midpoint of }JL=\left(\dfrac{-2+4}{2},\dfrac{2+0}{2}\right)=(1,1)$

Given:

M = (3, 7)
K = (-1, -5)

$\implies \textsf{midpoint of }MK=\left(\dfrac{3-1}{2},\dfrac{7-5}{2}\right)=(1, 1)$

Question (b)

Find slopes (gradients) of JL and MK then compare. If the product of the slopes of JL and MK equal -1, then JL and MK are perpendicular.

$\textsf{slope }m=\dfrac{y_2-y_1}{x_2-x_1}$

Given:

J = (-2, 2)
L = (4, 0)

$\implies \textsf{slope of }JL=\dfrac{0-2}{4+2}=-\dfrac13$

Given:

M = (3, 7)
K = (-1, -5)

$\implies \textsf{slope of }MK=\dfrac{-5-7}{-1-3}=3$

$\textsf{slope of }JL \times \textsf{slope of }MK=-\dfrac13 \times3=-1$

Hence segments JL and MK are perpendicular

4 0

2 years ago

So how do I do this?

Art [367]

Answer:

They are asking what line meets that number (5) which should be Line A

Step-by-step explanation:

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2 years ago

Please answer this correctly

My name is Ann [436]

Answer:

just add up all the number in your calulator

Step-by-step explanation:

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3 years ago

Simplify. 5√ 10 1) 2√ 2) 2√2 3) 10√2 4) 5√

Nataly_w [17]

For this case we have that the expression in its exact form is the same, that is:

$5 \sqrt {10}$

If it is expressed in decimal form we have:

$5 \sqrt {10} = 1.5849$

If we want equivalent expressions, we must first mention the following property of powers and roots:

$\sqrt [n] {a ^ m} = a ^ {\frac {m} {n}}$

Then, we can rewrite the expression as:

$5 \sqrt {10} = \sqrt {5 ^ 2 * 10} = \sqrt {25 * 10} = \sqrt {250}$

Answer:

$5 \sqrt {10} = \sqrt {250} = 1.5849$

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ira [324]

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