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Tom [10]
3 years ago
15

Aluate the expression for the given quantity. -9.8t + 20t + 8 for t= -2,0, 3.5

Mathematics
1 answer:
s344n2d4d5 [400]3 years ago
8 0

Answer:

7

Step-by-step explanation:

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Please help me with this
satela [25.4K]
Area of the trapezoid:
\frac{12.8 + 4.2}{2} (4.9) = 41.65 cm^2

Area of the rectangle:
4.2 x 3.1 = 13.02 cm^2

Area of each quarter circle:
\frac{ \pi  (3.1)^{2} }{4} = 7.54 cm^2

We have two quarter circles:
7.54 + 7.54 = 15.08

41.65 + 13.02 + 15.08 = 69.75 cm^2
5 0
3 years ago
The solution of the following equation as 0.15 ( 10t - 9= 0.75 (4t - 3)​
Alenkinab [10]

Answer:

\huge\boxed{\sf t = 0.6}

Step-by-step explanation:

\sf 0.15(10t-9) = 0.75(4t-3)\\\\Resolving \ Parenthesis\\\\1.5t-1.35 = 3t - 2.25\\\\Combining \ like \ terms\\\\-1.35 + 2.25 = 3t-1.5t\\\\0.9 = 1.5t\\\\Dividing \ both \ sides \ by \ 1.5\\\\0.9/1.5 = t\\\\0.6 = t\\\\OR\\\\\bold{t = 0.6}

Hope this helped!

<h2>~AnonymousHelper1807</h2>
4 0
3 years ago
Susan made chocolate chip cookies, peanut butter cookies, and sugar cookies to sell at the bake sale. she made twice as many sug
Anestetic [448]
Its B 2p=s s +1=c c+p+s=11
5 0
3 years ago
Read 2 more answers
Logan's e-reader sent a notification saying that he has completed 75% of the e-book.
Vika [28.1K]

Answer:

The total number of pages in the e-book is 240.

Step-by-step explanation:

Given:

Logan has completed 75%

Logan has read 180 pages

To Find:

The total number of pages in the e-book= ?

Solution:

Let X be the total number of pages on the e-book

then

=> 75% of X = 180

Now lets find the value of X

X = \frac{180}{75\%}

X = \frac{180}{\frac{75}{100}}

X = \frac{180}{0.75}

X = 240

5 0
3 years ago
The circumference of a circle is 18.84 yards. What is the circle's diameter?
zhannawk [14.2K]

Answer:

The diameter is 6 yards.

Step-by-step explanation:

2pir=18.84

pir=9.42

r=3(nearest whole number)

d=2r

d=2*3

d=6

Therefore, the diameter is 6 yards.

5 0
3 years ago
Read 2 more answers
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