2 years ago

Solve for x in the equation 2x^2+3x-7 = x^2+ 5 x + 39

Mathematics

2 answers:

AnnyKZ [126]2 years ago

8 0

Answer:

$X=1+\sqrt{47}$

Step-by-step explanation:

Hope this helps

Mark me as brainiest

Ne4ueva [31]2 years ago

5 0

Answer:

x1= 1 + √47

x2= 1 - √47

I use a handheld calculator to solve the problem

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Molodets [167]

Answer:

D:21

Step-by-step explanation:

Use the vertical angles equation.

4x + 13 = 5x - 8

Subtract 4x from 5x.

5x - 4x = x

13 = x - 8

Add 8 on both dies.

13 + 8 = 21

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2 years ago

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Find the volume of the entire figure to the nearest whole number. Use 3.14 for Pi.

Alja [10]

Answer:

1733.28 m³ or approximately 1733 m³

Step-by-step explanation:

Cone - 1/3πr²h

Cylinder - πr²h

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Approximately 1733 m³

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3 years ago

1. The value of y varies directly with x. If y = 30 when x =1/5

algol [13]

Answer:

4. b) 30

5. c) y=2/3x+9

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Step-by-step explanation:

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2 years ago

4x -y -16 = 0 in slope intercept form

xxMikexx [17]

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2 years ago

The function f(3) = 50.000(0.975)", where x represents the underwater

valentina_108 [34]

9514 1404 393

Answer:

316 lumens/m²

Step-by-step explanation:

We assume your intensity function is ...

f(x) = 50,000(0.975^x) . . . . x meters below the surface

Use 200 for x and do the arithmetic.

f(200) = 50,000(0.975^200) ≈ 316 . . . . lumens/m²

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2 years ago