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oksian1 [2.3K]
3 years ago
9

1. The ratio of students in 8th grade that preferred math

Mathematics
1 answer:
Marta_Voda [28]3 years ago
5 0

Answer:

a.  180

Step-by-step explanation:

\frac{4x}{10} = \frac{72}{1}

cross-multiply:

4x = 720

x = 180

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Evaluate (-2xy^3)^3 when x = 4 and y = -1
kipiarov [429]

Step-by-step explanation:

(-2xy^3)^3

(-2(4)(-1)^3)^3

(-2(4)(-1))^3

(8)^3

512

6 0
3 years ago
I need help ASAP!!Please explain how to solve the problem
rjkz [21]

Answer:

( x - 2 )^2 + ( y - 1 )^2 = 1

Step-by-step explanation:

As i previously explained,

The general form of equation for a circle is ( x - h )^2 + ( y - k )^2 = r^2.

h and k are the co-ordinates of the center of circle and r is the radius

Here, We have (2,1) as the co-ordinates of the center of circle

Now,

( x - h )^2 + ( y - k )^2 = r^2

or,( x - 2 )^2 + ( y - 1 )^2 = r^2

The radius of the circle is 1 units(from figure)

So, put that in, we get

( x - 2 )^2 + ( y - 1 )^2 = 1^2

or, ( x - 2 )^2 + ( y - 1 )^2 = 1

You can simplify this or leave it here.

8 0
3 years ago
The Science Club went on a two-day field trip. The first day the members paid $30 for transportation plus $17 per ticket to the
marishachu [46]

Answer:

(30$+17$)+(65$+10$)=

Step-by-step explanation:

6 0
3 years ago
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What is the length of BC in the right triangle below?
gayaneshka [121]

Hey there! :)

Answer:

C. BC = 39 units.

Step-by-step explanation:

Use the Pythagorean theorem to solve for BC. Let BC = c, AB = a, and AC = b.

c² = a² + b²

c² = 15² + 36²

Square and simplify:

c² = 225 + 1296

c² = 1521

c = √1521

c = 39 units.

Therefore:

BC = 39 units.

5 0
3 years ago
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What is 3x + 10(1-7X)
Alinara [238K]

Answer:

-67x + 10

Step-by-step explanation:

3x + 10(1 - 7x)

(use distributive property)

3x + 10 - 70x

(simplify)

3x - 70x + 10

-67x + 10

5 0
3 years ago
Read 2 more answers
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