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3 years ago

Help please. solve for x and y.

Mathematics

1 answer:

ohaa [14]3 years ago

4 0

To solve for x and y, you need to know if the triangles are congruent. They are because of their congruent sides and exterior angles are the same measure.
Now you know that the triangles are congruent, you can set up a proportion for the side lengths you are looking for.
For x...

22/10=x/12. Then cross mutiply. x =26.4
You can do this because the triangles are congruent.
For y...

22/10 =37.4/y. Then you cross multiply. y=17

The correct answer is B.

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At Fairview Middle School, 75 band members need to raise a total of $8,250 for a trip. So far, they have raised $3,120.

laila [671]

How much money, in dollars, per band member, still needs to be raised for the trip?

$68.40

A local business agrees to donate an additional $0.50 for each $1.00 in ticket sales to the band for their trip. What is the least number of concert tickets the band must sell in order to raise the rest of the money needed for the trip?

456 tickets

4 0

2 years ago

What is the next number in the sequence?

charle [14.2K]

Looks like the next term in the sequence is generated by multiplying the previous term by 3 and adding 1:

$1\times3+1=4$
$4\times3+1=13$
$13\times3+1=40$
$40\times3+1=121$

If the pattern holds, the next term is probably going to be

$121\times3+1=364$

8 0

3 years ago

2 Points

kirill [66]

Answer:

50.24 yd^2

Step-by-step explanation:

The area of a circle can be found using:

$a=\pi r^{2}$

First, we need to find the radius. We have the diameter. The diameter is twice the radius, or

d=2r

We know that the diameter is 8, so we can substitute 8 in for d

8=2r

Since we are trying to find r, we need to get r by itself. To do this, divide both sides by 2.

8/2=2r/2

4=r

Now we know the radius, and can substitute 4 in for r. Also, we can substitute 3.14 in for pi.

$a=\pi r^{2}$

a=3.14*4^2

Solve the exponent

a=3.14*16

Multiply

a=50.24

The area is 50.24 yards^2

8 0

3 years ago

Identify an equation in point-slope form for the line perpendicular to y = -1/2x + 11 that passes through (4, -8)

andrey2020 [161]

Answer:

y+8 = 2(x-4)

Step-by-step explanation:

Perpendicular lines have negative reciprocal slopes. Since we know the slope of the first line is -1/2, this means the slope of the line perpendicular to it is 2.

And since we know the coordinated located on the line, we can fill out the formula for poiny-slope form:

y-y1 = m(x-x1)

6 0

3 years ago

Calculate the mass of a rectangular solid that has a density of 2.53 g/cm3 and which measures 25 mm by 1.80 cm by 3.00 cm.

Annette [7]

Mass = density x volume
1st we need to get the volume
V = (25*10^-1) * (1.8) * (3)
V = 13.5 cm3
mass = 2.53 * 13.5
mass = 34.155 kg

3 0

3 years ago