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Phantasy [73]
3 years ago
6

Find polynomial whose zeros are 3 and -4​

Mathematics
1 answer:
horrorfan [7]3 years ago
6 0

Answer:

Simplest polynomial: x²+x-12

Step-by-step explanation:

zeroes of polynomial= 3,-4

Therefore,

f(3) =0

f(-4)=0.

By factor Theorem

(x-3) and (x+4) are factors

so simplest polynomial is

(x-3)(x+4)

= x² - 3x + 4x -12

= x² + x -12

.

Hope it helps

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Marissa has a photograph that measures 2 in. by 4 in. She has mounted the picture on a mat so that there is a border that measur
DanielleElmas [232]

Step-by-step explanation:

The initial image of the photo is 2 in by 4 in.  The mat is 4 in by 6 in.

The new image is dilated by a scale of 2.  So we double the dimensions.  The new photo is 4 in by 8 in.  The new mat is 8 in by 12 in.

3 0
3 years ago
While completing a race, Will spent 14 minutes walking. If his ratio of time walking to jogging was 7 : 6, how many minutes did
worty [1.4K]

Answer:

12 minutes

Step-by-step explanation:

\frac{7}{6} =\frac{14}{x}

7x=84

x=12

So, he spent 12 minutes jogging.

8 0
3 years ago
Solve:<br> 2(x+2)-5=3(x-1)
sergejj [24]
Answer:
x = 2

Explanation:
2(x+2)-5=3(x-1)
1) Use distributive property (multiply the 2 by x+2 and the 3 by x-1)
2x+4-5=3x-3
2) Combine like terms
2x-1=3x-3
3) Subtract 2x on both sides
-1=x-3
4) Add 3 on both sides
2=x

hope this helps!
7 0
3 years ago
How do I solve this
nexus9112 [7]

the formula is

measure \:  of arc/360× \: \pi {r}^{2}

7 0
3 years ago
A half-filled cylindrical water tank has a water level of 20 feet high. The tank can hold 6000 cubic feet of water. Find the dia
OleMash [197]

Answer:

Diameter of tank = 19.5 ft

Step-by-step explanation:

Volume of cylinder = Base area x Height.

Base area = Area of circle

\texttt{ Area of circle}=\frac{\pi d^2}{4}

Height = 20 ft.

Volume of tank = 6000 cubic feet .

\texttt{ Volume of cylinder = Base area x Height.}\\\\6000=\frac{\pi d^2}{4}\times 20\\\\d^2=381.97\\\\d=19.5ft

Diameter of tank = 19.5 ft

4 0
3 years ago
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