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Ratling [72]
2 years ago
10

What is the domain of the function f(x) = x^2 + 5?

Mathematics
1 answer:
Sophie [7]2 years ago
4 0

The domain is R so the first one is correct.

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What is the answer someone help meeee
Varvara68 [4.7K]

Answer:

1) 8n-3

2) 3+(8-n)

3) 3(n-8)

4) 3(n+8)

6 0
3 years ago
Find the sum and express it in simplest form. <br><img src="https://tex.z-dn.net/?f=%28b%20-%203x%29%20%2B%20%28%20-%205b%20%2B%
nevsk [136]
(b - 3x) + (-5b + 6x - 5) 
= b - 3x - 5b + 6x - 5
= b - 5b - 3x + 6x - 5
= -4b + 3x - 5
8 0
2 years ago
The equation of the line through point (-5,0) and parallel to the y-axis is
Mrac [35]
It's x=-5. It is a vertical line, and vertical lines have a consistent x coordinate. Since it passes through (-5,0), you take the x-coordinate of this point.
4 0
3 years ago
9. The figure shows a rectangle with its length and
lora16 [44]

Answer:

875cm^2

Step-by-step explanation:

since opposite sides are equal

3x-y=2x+y

x=2y                                                      

y=x/2                                                                      ....(i)

thus new length=2x+y

=2x+(x/2)                                                              [using (i)]

=(4x+x)/2

l=5x/2                                                                   .....(ii)

now,

perimeter=2(l+b)=120cm

l+b=60cm            

from figure and using (ii)

[5x/2]+2x-3=60

[5x+4x-6]/2=60

9x-6=120

9x=126

x=126/9

x=14                                                                 ..........(iii)

substitute (iii) in (i)

y=14/2

y=7                                                                  ...........(iv)

From figure,

length=2x+y                                                   [using (iii) and (iv)]

=2x14+7

length=35cm

breadth=2x-3

=2x14-3                                                          ....[using(iii)]

=28-3

breadth=25cm

now,

Area=lxb

=35x25

=875cm^2

7 0
3 years ago
1 2.52 Test (CS): Functions
Mumz [18]

Answer:

V=lwh=5 x 9 x 3=135cm3

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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