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3 years ago

15

Which point is Not on a circle with a center of (0,0) and a radius of 10?

2 answers:

Burka [1]3 years ago

6 0

It is A because the radius is 10 which means that if x=0 then y must equal 10. (0,5) would be inside of the circle. If this doesn't make sense graph the circle and the points and you'll see what I mean.

arlik [135]3 years ago

3 0

What is the general equation for a circle? There should be three unknowns, namely (a,b), the coordinates of the centre of the circle, and r the radius of the circle. You have three points on the circle, which should give you three equations. Solve the system, and you get a, b and r.

The second part is similar: what is the general expression for a quadratic function? Once again, there are three unknowns, use the three points to get a new system and solve.

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What is 39 divide by 2

marta [7]

19.5

Step-by-step explanation:

u just divide 39 by 2 and get 19.5

6 0

3 years ago

Select all of the expressions that are equivalent to -7.

Ivanshal [37]

Answer:

the answers that are equivalent are a, b, and e

6 0

3 years ago

If f(x) equals x/2+8 what is f(x) when x=10

Sphinxa [80]

Answer:

13

Step-by-step explanation:

Since we want to find f(x) when x equals 10, we can substitute 10 in for x

f(x)=x/2 +8

f(10)=10/2+8

Divide 10 by 2

f(10)=5+8

Add 5 and 8

f(10)=13

So, f(x) when x=10 is 13

4 0

3 years ago

Read 2 more answers

Point slope graph y+2÷4(x+5)

ladessa [460]

Answer:

See attachment for graph

Or

The slope intercept form is $y=4x+18$

Step-by-step explanation:

Assuming you want to graph the straight line given in point-slope form as

$y+2=4(x+5)$

Then we need at least two points on this line

When we compare to the point-slope formula $y-y_1=m(x-x_1)$ then we obtain (-5,-2) as a point on this line so we plot it.

When x=0, y=4(0+5)-2=18 so we plot (0,18)

We then draw a straight line through as shown in the attachment.

On the other hand, if you had wanted the equation slope intercept form, then we expand to obtain:

$y+2=4x+20$

$\implies y=4x+20-2$

$\implies y=4x+18$

3 0

3 years ago

What is the answer to X(x+7)

LekaFEV [45]

Answer:

$\boxed{ \bold{ \boxed {\huge{ \sf{ {x}^{2} + 7x}}}}}$

Step-by-step explanation:

$\sf{x(x + 7)}$

Distribute x through the parentheses

$\dashrightarrow{ \sf{x \times x + x \times 7}}$

$\dashrightarrow{ \boxed{ \sf{ {x}^{2} + 7x}}}$

Hope I helped!

Best regards! :D

3 0

3 years ago