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beks73 [17]
3 years ago
15

Please help me for this question:​

Mathematics
1 answer:
labwork [276]3 years ago
3 0
24|5
25|0, 1, 3, 8
26|4, 7, 9
27|3, 6
key in bottom right
24|5 means 245
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f(x) is a quadratic function with x-intercepts at (−1, 0) and (−3, 0). If the range of f(x) is [−4, [infinity]) and g(x) = 2x^2
iren2701 [21]

Answer with Step-by-step explanation:

We are given that function f(x) which is quadratic function.

x -intercept of function f(x) at (-1,0) and (-3,0)

x-Intercept of f means zeroes of f

x=-1 and x=-3

Range of f =[-4,\infty)

g(x)=2x^2+8x+6=2(x^2+4x+3)

g(x)=0

2(x^2+4x+3)=0

x^2+4x+3=0

x^2+3x+x+3=0

x(x+3)+1(x+3)=0

(x+1)(x+3)=0

x+1=0\implies x=-1

x+3=0\implies x=-3

Therefore, x-intercept of g(x) at (-1,0) and (-3,0).

Substitute x=-2

g(-2)=2(-2)^2+8(-2)+6=8-16+6=-2

g(x)=2(x^2+4x)+6

g(x)=2(x^2+2\times x\times 2+4-4)+6=2(x^2+2\times x\times 2+4)-8+6

g(x)=2(x+2)^2-2

By comparing with the equation of parabola

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

Where vertex=(h,k)

We get vertex of g(x)=(-2,-2)

Range of g(x)=[-2,\infty)

Zeroes of f and g are same .

But range of f and g are different.

Range of f contains -3 and -4 but range of g does not contain -3 and -4.

f and g are both quadratic functions.

3 0
3 years ago
Answer for brainliest what is the volume
lisov135 [29]

Answer:

The answer is 36

Step-by-step explanation:

To find the volume you:

multiply \: (6 \times 3 \times 2) = 36{cm}^{3}

6 0
2 years ago
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How many times does 25 go into 63
statuscvo [17]

Answer:

2 times

Step-by-step explanation:

25 x 2 is 50. And 25 x 3 is 75, and 75 is larger then 63.

5 0
3 years ago
Find the area of a regular hexagon with side length of 10 and apothem of 8.7 meters <br>HELP PLZZZ​
muminat

Answer:

43.5 meters

Step-by-step explanation:

Area of regular hexagon =

\frac{1}{2}  \times ap

in the problem you have a = 10 meters

and p = apothem = 8.7 meters

so if you apply the formula

you will have

area =( 1/2) × 10 × 8.7

area = 43.5 meters

8 0
3 years ago
30 is 120% of what number? show ur work
Yanka [14]

Answer:

30 is 120% of 25

Step-by-step explanation:

30 = 120% of y

\frac{120}{100} × y = 30

After multiplying both sides by 100 and dividing both sides by 120, we have

y = 30 × \frac{100}{120}

y = 25

3 0
3 years ago
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