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tatiyna
3 years ago
6

Can someone please help me?

Mathematics
1 answer:
ElenaW [278]3 years ago
8 0

Answer:

Choice A is correct; Kindly rate

Step-by-step explanation:

A function is said to be increasing over a given interval if the value of the function is increasing over the said interval. From the graph, the function is increasing over the interval since with every change in the x-value, the y-value is increasing

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Convert y =(x+1)(x-9) to vertex form
IgorC [24]

Answer:

y = (x - 4)² - 25

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

To obtain this form use the method of completing the square.

Given

y = (x + 1)(x - 9) ← expand factors using FOIL, thus

y = x² - 8x - 9

To complete the square

add/subtract ( half the coefficient of the x- term )² to x² - 8x

y = x² + 2(- 4)x + 16 - 16 - 9

  = (x - 4)² - 25 ← in vertex form

5 0
3 years ago
Solve the equation. 8d – 4d – 6d – 8 = 2d
oee [108]
<span>8d – 4d – 6d – 8 = 2d
</span><span>8d – 4d – 6d – 2d = 8
-4d = 8
   d = -2</span>
7 0
3 years ago
Read 2 more answers
2xy when x = 5 and y = -3
Stels [109]

Answer:

the answer is -30

Step-by-step explanation:

2xy=2*5*-3

= -30

5 0
3 years ago
Alguien que hable español
NeX [460]

Answer:

Question it in english

Step-by-step explanation:

8 0
3 years ago
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The area of a circle is 38.5 cmsq. thje circumference of the circle is
HACTEHA [7]

Step-by-step explanation:

Solution,

Area=38.5 cm²

by using the formula of are of a circle i.e, πr², we get

πr²= 38.5 cm², where π=22/7

r²=38.5 cm²/π

r²=12.25 cm²

r=√12.25 cm²

r=3.5 cm

Now, by using the formula of circumference of a circle i.e, 2πr, we get

2πr=2×π×3.5 cm, where π=22/7

=22 cm

So, the circumference of the circle is 22 cm.

I hope it helped U

stay safe stay happy

6 0
2 years ago
Read 2 more answers
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