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otez555 [7]
2 years ago
11

HELP QUICK! You must find all intervals where f(x) is negative. f(x)=2(x+3)(x-7)

Mathematics
1 answer:
beks73 [17]2 years ago
4 0

Answer:

any # where -2<=x<7

Step-by-step explanation:

(x-7) would be negative and (x+3) positive, resulting in f(x) being negative.

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Which point lies on a circle with a radius of 5 units and center at P(6,1)?
ryzh [129]

Answer:

Option B. R(2,4)

Step-by-step explanation:

we know that

If a ordered pair lie on the circle. then the ordered pair must satisfy the equation of the circle

step 1

Find the equation of the circle

we know that

The equation of the circle in center radius form is equal to

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

where

r is the radius of the circle

(h,k) is the center of the circle

substitute the values

(x-6)^{2}+(y-1)^{2}=5^{2}

(x-6)^{2}+(y-1)^{2}=25

step 2

Verify each case

case A) Q(1, 11)

substitute the value of x=1, y=11 in the equation of the circle and then compare the results

(1-6)^{2}+(11-1)^{2}=25

25+100=25 ------> is not true

therefore

the ordered pair Q not lie on the circle

case B) R(2,4)

substitute the value of x=2, y=4 in the equation of the circle and then compare the results

(2-6)^{2}+(4-1)^{2}=25

16+9=25 ------> is true

therefore

the ordered pair R lie on the circle

case C) S(4,-4)

substitute the value of x=4, y=-4 in the equation of the circle and then compare the results

(4-6)^{2}+(-4-1)^{2}=25

4+25=25 ------> is not true

therefore

the ordered pair S not lie on the circle

case D) T(9,-2)

substitute the value of x=4, y=-4 in the equation of the circle and then compare the results

(9-6)^{2}+(-2-1)^{2}=25

9+9=25 ------> is not true

therefore

the ordered pair T not lie on the circle

7 0
3 years ago
A French toast recipe calls for cup milk per beaten egg. If you use 6 cups milk, how many eggs should you use?
V125BC [204]

Answer:

the answer will be 12 eggs

4 0
2 years ago
Samantha says that two of three points below are on a line through the origin. (3,8), (6,21), and (9,24)
Thepotemich [5.8K]

Answer:

Yurrrrrrrrrrrrrrrrrrrrrrr

Step-by-step explanation:

Who got the answer to the homework

4 0
3 years ago
(x+5)(x-3)<br> (x-3)(x+10)
antiseptic1488 [7]
I’m learning this right now actually! The first one is...pretend the 2 is small. x2+2-15 and the second answer is x2+7-30!
8 0
3 years ago
Please help I’m really struggling with this
JulijaS [17]

Answer:

y=\frac{1}{3} x+4

Step-by-step explanation:

A linear equation is written as y=mx+b, "m" being the slope and "b" being the y-intercept.

The slope is how many times you rise/run in order to get from one point on the line to the next. You rise (go up/down) 1 unit and run (go left/right) 3 units. Plug in the numbers and you get 1/3.

The y-intercept is where the graph lands on the y-axis, which is 4.

8 0
3 years ago
Read 2 more answers
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