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Marizza181 [45]
3 years ago
8

Solve √(2x+3)=x for x showing work

Mathematics
1 answer:
marishachu [46]3 years ago
3 0
√(2x+3)²=x²
2x+3 = x²
x²-2x-3 = 0
(x-3)(x+1) = 0
x-3=0 and x+1=0
x = 3,-1
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A shop sells chocolate, vanilla and strawberry ice cream cones. In one day, 45% of the ice cream cones sold are vanilla and 17%
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Answer:

950

Step-by-step explanation:

As, 45% will be vanilla, and 17% will be strawberry

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As, 45%+17%+38% = 100%

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So the number chocolate ice cream cone sold is 950.

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2 years ago
What is the volume of the figure below, which is composed of two cubes with side lengths of 7 units?
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Answer:

B) 686 cubic units

Step-by-step explanation:

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  $809.32

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The loan amount is 80% of $150,000, or $120,000. The monthly payment of principal and interest is $586.82.

The total annual expense for taxes and insurance is $1920 +750 = $2670, so the monthly expense is $2670/12 = $222.50.

Then the total of payments for mortgage and escrow will be ...

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The monthly P&I payment is given by ...

  A = P(i/12)/(1 -(1 +i/12)^(-12t)) . . . . . where i is the annual interest rate, t is the number of years, and P is the amount financed.

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A spreadsheet or financial calculator can be useful for calculating payments, though the formula isn't difficult to use.

7 0
3 years ago
At a ski resort, 1/4 of the 300 skiers are beginners,and 1/4 of the 260 snowboarders are beginners.The resort staff used the dis
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Answer:

Step-by-step explanation:

1/4 of the 300 skiers are beginners......1/4 of the 260 snowboarders are beginners..

so we want the total number of beginners..

the distributive property in this situation would be :

1/4(300 + 260) .......to solve this, u first have to get rid of the parenthesis. To do this, u multiple the number directly to the left of the parenthesis, by everything in the parenthesis.....u distribute it.

1/4(560).....now we multiply

560/4 = 140

OR

this way

1/4( 300 + 260) = 1/4(300) + 1/4(260) = 300/4 + 260/4 = 75 + 65 = 140

3 0
2 years ago
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Um I think this is it hope this helps

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