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3 years ago

9

Help quick!!!! I’m stuck on this

1 answer:

irinina [24]3 years ago

5 0

Answer:

A= pi r(r+h2+r2)

Step-by-step explanation:

Multiply the radius by pi, then set that aside for a bit.

Square the height and the radius as well, then add those together. This is how it would look:

3.14 x 4 = 12.56

7 x 7 = 49 ; 4 x 4 = 16 ; 16 + 49 + 4 = 69 ; 69 x 12.56

I think this is the answer. Can't say I'm 100% sure, though.

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1+4.25n+3/2p-3+(x2p)+5/4n

Pavel [41]

Answer:

1+11/2n+3p^2x

6 0

3 years ago

Shelly sells cars, and she has to sell 50 cars per month t get a bonus. If Shelly sold 28% of the number of cars needed to get a

andrew-mc [135]

Answer: 14

Step-by-step explanation:

28% of 50

3 0

3 years ago

Read 2 more answers

If f(1) = 2 and f (n) = f(n-1) +5 then find the value of f (6)

Nutka1998 [239]

Answer:

f (6) + 1

Step-by-step explanation:

light work I hope this hleps

5 0

3 years ago

Solve for x<br><br> THANK YOU

Anestetic [448]

Answer:

$x=\dfrac{-17+ \sqrt{451} }{18}, \quad x=\dfrac{-17- \sqrt{451} }{18}$

Step-by-step explanation:

$\textsf{Given equation}:$

$\dfrac{2}{3}x+\dfrac{3x}{x}=\dfrac{4x}{2}(3x+6)$

$\textsf{Cancel the common factor } x \textsf{ in }\dfrac{3x}{x}:$

$\implies \dfrac{2}{3}x+3=\dfrac{4x}{2}(3x+6)$

$\textsf{Simplify }\dfrac{4x}{2}\textsf{ by dividing the numbers}:$

$\implies \dfrac{2}{3}x+3=2x(3x+6)$

$\textsf{Apply the distributive law}\quad \:a\left(b+c\right)=ab+ac:$

$\implies \dfrac{2}{3}x+3=6x^2+12x$

$\textsf{Multiply both sides by 3 to cancel the denominator of }\dfrac{2}{3}:$

$\implies \dfrac{2}{3}x\cdot 3+3\cdot 3=6x^2\cdot 3+12x \cdot 3$

$\implies 2x+9=18x^2+36x$

$\textsf{Switch sides}:$

$\implies 18x^2+36x=2x+9$

$\textsf{Subtract }2x \textsf{ from both sides}:$

$\implies 18x^2+36x-2x=2x+9-2x$

$\implies 18x^2+34x=9$

$\textsf{Subtract 9 from both sides}:$

$\implies 18x^2+34x-9=9-9$

$\implies 18x^2+34x-9=0$

Solve using the <u>Quadratic Formula:</u>

$x=\dfrac{-b \pm \sqrt{b^2-4ac} }{2a}\quad\textsf{when }\:ax^2+bx+c=0$

Define the variables:

$\implies a=18, \quad b=34, \quad c=-9$

Substitute the defined variables into the quadratic formula and solve for x:

$\implies x=\dfrac{-34 \pm \sqrt{34^2-4(18)(-9)} }{2(18)}$

$\implies x=\dfrac{-34 \pm \sqrt{1156+648} }{36}$

$\implies x=\dfrac{-34 \pm \sqrt{1804} }{36}$

$\implies x=\dfrac{-34 \pm \sqrt{4 \cdot 451} }{36}$

$\implies x=\dfrac{-34 \pm \sqrt{4}\sqrt{451} }{36}$

$\implies x=\dfrac{-34 \pm 2\sqrt{451} }{36}$

$\implies x=\dfrac{-17 \pm \sqrt{451} }{18}$

Therefore, the solutions to the given equation are:

$x=\dfrac{-17+ \sqrt{451} }{18}, \quad x=\dfrac{-17- \sqrt{451} }{18}$

Learn more about the Quadratic Formula here:

brainly.com/question/28105589

brainly.com/question/23700639

3 0

2 years ago

Read 2 more answers

What is the area in square meters of the trapezoid below

Rina8888 [55]

Given:

Bases of the trapezoid are 5.2 m and 14.6 m.

The height of the trapezoid is 7 m.

To find:

The area of the trapezoid.

Solution:

The area of a trapezoid is:

$A=\dfrac{a+b}{2}\times h$

Where, a,b are bases and h is the height of the trapezoid.

Putting $a=5.2,b=14.6,h=7$ in the above formula, we get

$A=\dfrac{5.2+14.6}{2}\times 7$

$A=\dfrac{19.8}{2}\times 7$

$A=9.9\times 7$

$A=69.3$

Therefore, the area of the trapezoid is 69.3 square meters.

3 0

3 years ago