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3 years ago

Find the value of y in the formula y=5a-3b c, if a=12,b=4,c=8

2 answers:

8 0

Y=5a-3b
Y=5(12)-3(4)
Y=60-12
Y=48

You don't have a sign between b and c in the equation, so I cannot help you with the last operation

Korvikt [17]3 years ago

6 0

So we start by substituting the numbers, y= 5(12)-3(12)(8)
y= -228

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Determine whether the polygons are similar. If so, write a similarity

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Answer:

yes, because of the Angle-Angle-Angle theorem

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Step-by-step explanation:

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2 years ago

Find the distance between the points (3,-5) and (3,-2).

iren [92.7K]

Answer:

3 units

Step-by-step explanation:

Distance between two points (x1,y1) and (x2,y2) on coordinate plane is given by

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

Given points in the problem are (3,-5) and (3,-2).

Thus distance between points (3,-5) and (3,-2).

$distance = \sqrt{(x1-x2)^2 +(y1-y2)^2 }\\=>distance = \sqrt{(3-3)^2 +(-5-(-2))^2 }\\=>distance = \sqrt{(0)^2 +(-5+2)^2 }\\\\=>distance = \sqrt{0 +(-3)^2 }\\\\=>distance = \sqrt{9 }\\=>distance = 3$

Distance between points (3,-5) and (3,-2) is 3 units

3 0

3 years ago

Find the surface area of the cube. 5 ft S.A. = [?] ft? 5 ft A Hint: A cube has 6 square faces. Find the area of one face, then m

atroni [7]

First, let's find the area of one face of the cube.

Area = base x height

A = 5 x 5 = 25

There are 6 faces on a cube, so we can multiply the area of one face by 6 to get the total surface area.

SA = 25 x 6 = 150 ft^2

Hope this helps!

4 0

2 years ago

3. Is XY Tangent to circle Z? Y 12 X (20 Z 18

Ratling [72]

Answer:

XY is a tangent

Step-by-step explanation:

Given

$XY = 12$

$WY = 20$

$WZ = 8$

Required

Is XY a tangent?

XY is a tangent if:

$WY^2 = XY^2 + WX^2$

Because XY should make a right angle at point X with the circle

Where

$WX = 2 * WZ$

So, we have:

$WY^2 = XY^2 + WX^2$

$WY^2 = XY^2 + (2*WZ)^2$

$WY^2 = XY^2 + (2WZ)^2$

$WY^2 = XY^2 + 4WZ^2$

This gives:

$20^2 = 12^2 + 4*8^2$

$400 = 144 + 256$

$400 = 400$

Yes, XY is a tangent

4 0

2 years ago

232 round to nearest ten

solniwko [45]

The nearst rounding to the tens is 230

8 0

3 years ago

Read 2 more answers