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Alona [7]
3 years ago
14

I need help with this problem please

Mathematics
2 answers:
Nuetrik [128]3 years ago
8 0

Answer:

150

Step-by-step explanation:

KengaRu [80]3 years ago
4 0

Answer:

150

Step-by-step explanation:

PEMDAS = Parenthesis, exponents, multiplication, division, addition, subtraction.

3 · [(22 + 4 ÷ 2 + 2) + 24]

3 · [(22 + 2 + 2) + 24]

3 · [26 + 24]

3 · [50]

150

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The ratio of minutes to dry and minutes to
Mnenie [13.5K]

Answer:

56:42 (i hope this is right)

Step-by-step explanation:

I divided 56 and 4 which makes 14. Then I multiplied 14 and 3 to get 42. So 56 by 42.

3 0
3 years ago
X^4-28x^2=0 solve algebraically
Paha777 [63]
x^4 - 28x^2  = 0

x^2(x^2 - 28) = 0

x^2 = 0 \ \ or \ \ (x^2 - 28) = 0

x = 0 \ \ or \ \ x^2 = 28

x = 0 \ \ or \ \ x = \pm \sqrt{28}

x = 0 \ \ or \ \ x = \pm2 \sqrt{7}

---------------------------------------------------
Answer : x = 0 or 2√7 or -2√7
---------------------------------------------------
8 0
3 years ago
WHAT IS A EQUATION PLEASE HELP!
nadya68 [22]

Answer: 1.5s+20

Step-by-step explanation:

3 0
2 years ago
Please solve the problem.
Deffense [45]
OK.  I did it, and I have the solution.
_____________________________________

The length of the deck is  (5 + 2x) .
The width of the deck is   (4 + 2x) .

If the deck didn't have that big hole in the middle where the pool is,
then its area would be

                 (5 + 2x) · (4 + 2x) .

When you multiply that all out, you get    Area = 4x² + 18x + 20

and the question tells us that the area of the whole big rectangle is 90 yds² .
So we can write

                                             4x² + 18x + 20  =  90 .

Subtract 90 from each side:    4x² + 18x - 70  =  0
Divide each side by 2 :           2x² + 9x - 35  =  0

You can use the quadratic equation to solve that and find out that
x = 2.5 yards, and that's what the question is asking you.
___________________________________________________

That makes the deck  10 yds high and 9 yds wide.

Total area of the whole big rectangle, (deck + pool ),  =  90 yds².
 
3 0
3 years ago
PLEASE HELP WILL GIVE BRAINLIEST
Svetach [21]

Answer:

Check explanation

Step-by-step explanation:

I'll give you my way of solving it and you can figure it out from there.

<CEA = <DEB due to vertical angles

AE = ED due to midpoint theorem

<CAD = <ADB due to alternating angles theorem

thus two triangles congruent due to ASA

5 0
2 years ago
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