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babymother [125]
3 years ago
13

WILL MARK BRAINLIEST!!! HELP!​

Mathematics
1 answer:
Virty [35]3 years ago
8 0

Answer:

d) x=4

Step-by-step explanation:

\sqrt{x} +5 = \sqrt{x + 45}

(\sqrt{x} +5)^{2}   = (\sqrt{x + 45})^{2}

x + 10\sqrt{x} +25 = x + 45

10\sqrt{x}  = 20

divide 10 in both sides

(\sqrt{x}){2}  = (2){2}

x=4

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Two cylinders are similar. The surface area of one is 49 cm ^ 2 , and the surface area of the other is 121 cm ^ 2 . Find the sca
dalvyx [7]

Answer:

7 : 17.29

Step-by-step explanation:

==>Given:

Two similar cylinders:

Surface area of Cylinder A = 49cm²

Surface area of Cylinder B = 121cm²

==>Required:

Scale factor between both cylinders

==>Solution:

We can easily get the scale factor between both by taking the following steps:

=>Set up a ratio of their surface area:

Smaller cone surface area : larger cone surface area

49:121

= 49/121

=>Simplify the ratio gotten:

Dividing the denominator and the numerator by 7, would give us,

7/17.29

= 7:17.29

8 0
3 years ago
Read 2 more answers
-onsider x + 4 = x + 8. What values could be substituted for x to make this a true
devlian [24]

Answer:

No because upon subtracting x on both sides you obtain a false equation of 4=8.

The problem:

What are x values that satisfy:

x+4=x+8?

Step-by-step explanation:

No number can be substituted into x+4=x+8 to make it true.

There is no number that you can find such that when you add 4 to it will give you the same as adding 8 to it.

Also if you subtract x on both sides you obtain the equation 4=8.

4=8 is not true so x+4=x+8 is never true for any x.

7 0
3 years ago
What one was c because all them look alike but different solutions
ElenaW [278]
I don't know what c you are talking about because there is no picture
4 0
3 years ago
Graph ​y=−4/7x+1​. do this math
Fofino [41]

Answer:

Use demos or a graphing calc.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Can somebody please help answer this word problem using grass method? And showing how u get the answer thanks!!!
xxTIMURxx [149]

Answer:3/20

Step-by-step explanation:

Fraction of total area mowed = (3/5) + (1/4) = 17/20

Therefore fraction of total area left = 1 - (17/20) = (20/20) - (17/20) = 3/20

8 0
2 years ago
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