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laiz [17]
3 years ago
5

Lots of point up for grabs

Mathematics
2 answers:
Burka [1]3 years ago
5 0
Minus a from both sides
x-a=-2by²
times both sides by -1
a-x=2by²
divide both sides by 2b
\frac{a-x}{2b}=y^2
sqrt both sides
y= \sqrt{\frac{a-x}{2b}}
Vikki [24]3 years ago
3 0

Answer:

minus a from both sides

x-a=-2by²

times both sides by -1

a-x=2by²

divide both sides by 2b

sqrt both sides

Step-by-step explanation:

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GET BRAINLIEST IF YOUR RIGHT!!!
Naddika [18.5K]

Answer:

Saul works at the local car dealership.

=> He makes 2% commission on all sales.

=> He sells a car worth $20,000.

Question: What is his commission

=> We need to get the 2% value of 20 000 dollars for his commission. To do that simply convert 2% into decimal value then multiply it with 20 000 dollars.

=> 2% / 100% = 0.02

=> 20 000 * .02 = 400 dollars is his commission.

Step-by-step explanation:

6 0
3 years ago
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Simplify the expression <br> 7x/9x
pantera1 [17]
<span>7x/9x = 7/9

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4 0
3 years ago
Work out the surface area of this solid prism.
alexandr1967 [171]

Answer:

2520cm²

Step-by-step explanation:

Surface area = sum of the area of all the bases.

Area of bottom base = 28 * 30 = 840

Area of right base = 25 * 30 = 750

Area of left base = 17 * 30 = 510

Area of two triangles = ( 15 * 28 ) / 2 = 210 * 2 = 420

Then add all the areas together to find surface area

Surface area = 840 + 750 + 510 + 420 = 2520cm²

Relevant Formulas:

Area of a rectangle = length * width. This formula was used to find the area of the bottom base, the right base and the left base

Area of a triangle = ( height * base length ) / 2 . This formula was used to find the area of the sides which are triangles.

5 0
3 years ago
In the diagram below, ΔABC ∼ ΔDEF. If AC=18,BC=24. and DF=12, find EF
ValentinkaMS [17]

Answer:

9

Step-by-step explanation:

similar triangles.

that means there is one common factor to transform the lengths of all lines from one triangle to the other.

it looks to me DF is the longest side in DEF, and that would make it associated to BC of ABC.

so, the factor is then

BC = DF×f

24 = 12×f

=> f = 2

so, EF then is associated to AC.

AC = EF × f

18 = EF × 2

EF = 18/2 = 9

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Answer:

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Step-by-step explanation:

It should be 0.20 per topping not 0.25

hope this helps

6 0
3 years ago
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