4 years ago

|2x+5|=9 how do i solve this

1 answer:

7 0

So pretty much you have to have the x alone. so u will have to -5 on both sides. then it will be 2x=4. so u will divide 2 on both sides. so u will get x=2

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the rectangle shown has a perimeter of 40cm and the given area of 64 cm squared it's length is 8 more than twice its width write

notka56 [123]

Answer:

16 = l

4 = w

Step-by-step explanation:

{64 = wl

{40 = 2w + 2l

{l = 8 + 2w

64 = w[8 + 2w] ↷

-64 + 8w + 2w² ↷

[2w² - 8w] + [16w - 64]

2w[w - 4] 16[w - 4]

[w - 4][2w + 16] = 0

↑

This is the expression we want because when we talk about dimensions, we want NON-NEGATIVE numbers. The other expression results in -8 = w, and we do not want that; this expression gives us a solution of 4 = w, and THIS is exactly what we want. Anyway, you plug "4" back into the system of equations and you will get a length of 16 centimetres.

I am joyous to assist you anytime.

7 0

3 years ago

Can someone help me with this problem?

Sedbober [7]

<h3>Answer: 2(11+9)</h3>

Explanation:

22 = 2*11

18 = 2*9

We see that 2 is the GCF of 22 and 18. It's the largest shared factor.

Now use the distributive property to say the following

22 + 18

2*11 + 2*9

2(11+9)

To check the answer, multiply the outer 2 by each term inside to end up with 22+18 again.

3 0

3 years ago

What are the domain and range of f (x) = (one-fifth) Superscript x?

ivann1987 [24]

Answer:

domain is all real numbers the range is all real numbers greater thanzero

Step-by-step explanation:

hope this helps may I have brainliest plz

3 0

3 years ago

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Sandra plans to excersise the same number of minutes m each of the remaning three days this week in order for sandra to excersis

aleksandrvk [35]

I think its 350 because 150x the three days =350

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AveGali [126]

X = 12 because x+3 is equal to 15

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