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3 years ago

HELP ME 6TH GRADE MATH

Mathematics

1 answer:

mina [271]3 years ago

7 0

Plug in 4 for l, 6 for w, and 7 for h

V = (1/3)(4)(6)(7)

Multiply the terms together

V = (1/3)(168)

Note that when multiplying 1/3 with 168, you are really dividing by 3

V = 168/3

V = 56

B) 56 cu. in is your answer

hope this helps

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Determine if JK and LM are parallel ,perpendicular, or neither. J(13,-5) K(2,6) L(-1,-5) M(-4,-2)

barxatty [35]

Answer:

The lines are parallel

Step-by-step explanation:

we know that

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

Remember that

If two lines are parallel, then their slopes are the same

If two lines are perpendicular, then their slopes are opposite reciprocal (the product of their slopes is equal to -1)

step 1

Find the slope JK

we have

$J(13,-5),K(2,6)$

substitute the values

$m=\frac{6+5}{2-13}$

$m=\frac{11}{-11}$

$m_J_K=-1$

step 2

Find the slope LM

we have

$L(-1,-5),M(-4,-2)$

substitute the values

$m=\frac{-2+5}{-4+1}$

$m=\frac{3}{-3}$

$m_L_M=-1$

step 3

Compare the slopes

$m_J_K=-1$

$m_L_M=-1$

$m_J_K=m_L_M$

therefore

The lines are parallel

7 0

4 years ago

The radius is 5 Given that the measurement is in centimeters, find the area of the circle to the nearest tenth. (Use 3.14

Vsevolod [243]

Answer:

A = 78.5 cm^2

Step-by-step explanation:

The area of a circle is given by

A = pi r^2

We know r =5 and pi = 3.14

A = 3.14 (5^2)

A = 3.14 (25)

A = 78.5 cm^2

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