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Sphinxa [80]
3 years ago
9

What do 20-(12+6) equal

Mathematics
1 answer:
scZoUnD [109]3 years ago
6 0

Answer:

2

Step-by-step explanation:

Since the 12 + 6 are parenthesis, we do these first

12 + 6 = 18

Then will solve the rest, 20 - 18

20 - 18 = 2, therefore leaving us with the answer of 2

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Write the point-slope form of the equation of the line that passes through the points (-3, 5) and (-1, 4). Include your work in
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Answer:

y-5=-1/2(x+3)

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(4-5)/(-1-(-3))

m=-1/(-1+3)

m=-1/2

y-y1=m(x-x1)

y-5=-1/2(x-(-3))

y-5=-1/2(x+3)

5 0
3 years ago
A basketball has the radius of 15 cm. What is the minimum circumference needed for the rim of the basketball hoop?
Alex Ar [27]

Answer: 94.2 cm

Step-by-step explanation:

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2(3.14)(15)

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5 0
3 years ago
Please help me:) !!!!!!
Naily [24]

Answer:

Please find the solution in the image attached below.

Step-by-step explanation:

Tcos60 -2T sin(90-theta) = 0

Tcos60 = 2T(cos theta)

cos 60 = 2cos theta

cos60 = 2cos theta

1/4 = cos theta

theta = 75.5

So the angle to the vertical = 90-75.5 = 14.5

S

Resolving perpendicular

Tsin60 + 2Tsin75.5 - 2g = 0

T(sin 60 + 2sin75.5) = 2g

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T = 19.6/1.936 + 0.866

T = 19.6/2.802 = 7.0N

Hope this helps!

6 0
3 years ago
Which relation is a direct variation that contains the ordered pair (2, 7)? y = 4x – 1 y = StartFraction 7 Over x EndFraction y
Vanyuwa [196]

Answer:

The relation y=\frac{7}{2}x or y = seven-halves x is a direct variation that contains the ordered pair (2,7).

Step-by-step explanation:

Given:

The ordered pair = (2, 7).

Now, to get the direct variation:

As (2,7) lies on it.

So, direct variation means y=kx.

x=2.

y=7.

Now,

y=kx

7=k\times 2

\frac{7}{2} =k

k=\frac{7}{2}

Now, to get the direct variation:

y=kx

y=\frac{7}{2}x

y=\frac{7}{2}x or y = seven-halves x.

Therefore, the relation y=\frac{7}{2}x or y = seven-halves x is a direct variation that contains the ordered pair (2,7).

6 0
4 years ago
Susan has a collection of 52 nickels and dimes. If the number of nickels is three times the number of​ dimes, how many nickels a
olga_2 [115]

Answer:

13 dimes and 39 nickles

Step-by-step explanation:

3 0
3 years ago
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