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3 years ago

What is an equivalent expression for −2y−8+4y

Mathematics

2 answers:

miskamm [114]3 years ago

5 0

Answer:

2y-8

Step-by-step explanation:

2y+4y=2y

so it's 2y-8

Nonamiya [84]3 years ago

4 0

Answer:

2y-8

Step-by-step explanation:

-2y-8+4y

add like terms

2y-8

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Akimi4 [234]

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Step-by-step explanation:

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3 years ago

What is the total number of common tangents that can be drawn to the circles?

erastovalidia [21]

Answer:

B. 0

Step-by-step explanation:

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3 years ago

Rosa wants 2 pairs of jeans that cost $32 each .she has a coupon for $10 off the price of one pair .what price will rosa pay for

Phoenix [80]

Answer:

$54

Step-by-step explanation:

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4 years ago

Find the perimeter of quadrilateral PQRS with the vertices P(2,4), Q(2,3), R(-2,-2), and S(-2,3).

storchak [24]

Answer:

$P=16.53\ units$

Step-by-step explanation:

we know that

The perimeter of quadrilateral PQRS is equal to the sum of its four length sides

the formula to calculate the distance between two points is equal to

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

we have

the vertices P(2,4), Q(2,3), R(-2,-2), and S(-2,3)

step 1

Find the distance PQ

P(2,4), Q(2,3)

substitute in the formula

$d=\sqrt{(3-4)^{2}+(2-2)^{2}}$

$d=\sqrt{(-1)^{2}+(0)^{2}}$

$d=\sqrt{1}$

$dPQ=1\ unit$

step 2

Find the distance QR

Q(2,3), R(-2,-2)

substitute in the formula

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

$d=\sqrt{(-5)^{2}+(-4)^{2}}$

$dQR=\sqrt{41}\ units$

step 3

Find the distance RS

R(-2,-2), and S(-2,3)

substitute in the formula

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

$d=\sqrt{(5)^{2}+(0)^{2}}$

$dRS=5\ units$

step 4

Find the distance PS

P(2,4), S(-2,3)

substitute in the formula

$d=\sqrt{(3-4)^{2}+(-2-2)^{2}}$

$d=\sqrt{(-1)^{2}+(-4)^{2}}$

$dPS=\sqrt{17}\ units$

step 5

Find the perimeter

$P=PQ+QR+RS+PS$

substitute the values

$P=1+\sqrt{41}+5+\sqrt{17}$

$P=6+\sqrt{41}+\sqrt{17}$

$P=16.53\ units$

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3 years ago

The measures of two angles if a triangle are 23 degrees 67 degrees. is the triangle acute, right, or obtuse?

lbvjy [14]

Because the angles in all triangles must add up to 180 degrees the third angle measurement will be 90 degrees. Since the angle is 90 degrees it is automatically a right triangle.

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3 years ago