How to do tHis? Help me pls!!!

Mathematics

1 answer:

ad-work [718]2 years ago

7 0

Area of a trapezoid = h/2 ( a + b) where h = height and a and b are the lengths of the 2 parallel sides.

So here we have

Area = 12/2 ( 18 + 23)

= 246 in^2 Answer

ii . volume of a sphere = 4/3 pi r^3 so

1436.03 = 4/3 pi r^3

r^3 = 1436.03 / (4/3 * pi) = 342.827

r = cube root of 342.827 = 7.0 m Answer

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7/30+9/20 what is the answer pls hurry im so confused

Svetradugi [14.3K]

Here is your answer:

$\frac{7}{30} + \frac{9}{20}$
Find common denominator:
$30 \times 20 = 60 /20 \times 30 = 60$
Common denominator is 60:
$\frac{7}{30} + \frac{9}{20} = \frac{140}{60} + \frac{270}{60}$
$140 + 270 = 410$
$= \frac{410}{60}$
$\frac{410}{60} \div 2 = \frac{205}{30} \div 5 = \frac{41}{6}$
= $\frac{41}{6} or 6\frac{5}{6}$

Hope this helps!

8 0

2 years ago

A swing forward 50 degree and back 95 degree. How many degree forward must the swing go to return in starting position

-Dominant- [34]

Answer:

45°.........................

4 0

2 years ago

What is the center and radius of the following circle: x2 + (y _ 6)_ = 50

Rama09 [41]

The true question should be like this:
<span>What is the center and radius of the following circle: x^2 + (y _ 6)^2 = 50,
circle quation formula is (x-a)^2 + (y-b)^2 = R², so by identifying each term, we find </span>(x-a)^2=x^2 = (x-0)^2, (y-b)^2= (y _ 6)^2, R² = 50, implies R =5sqrt(2),
it is easy to identify that the center is (a,b)= (0, 6)
the radius is R =5sqrt(2),

3 0

2 years ago

Translate this sentence into an equation.

ElenaW [278]

Answer:

The product of Victor's age and 7 is 84 in equation form is 7v=84

Step-by-step explanation:

Let v be the Victor's age.

We are supposed to Translate this sentence into an equation

The product of Victor's age and 7 is 84

Victor's age = v

Product of victor's age and 7 = $7 \times v$