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kobusy [5.1K]
3 years ago
8

Omg it's so hard what is 2 + 2 (yes)

Mathematics
2 answers:
Zina [86]3 years ago
8 0
I’m thinking like 69 but who knows
Alexandra [31]3 years ago
3 0

Answer:

5

Step-by-step explanation:

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4.) Find the length of the second base of a trapezoid with one base
velikii [3]

Answer:

11

Step-by-step explanation:

Trapezoid area = (base1 +base2) x h/2

=> Base2 =[Area x 2/h]-base1 = [98.8 x 2/7.6] - 15 = 26-15=11

3 0
3 years ago
A water tank is a cylinder with radius 40 cm and depth 150 m
vlada-n [284]

3.142×40^2×150=753,982.237

if1sec =0.2litres

what about 753.982=

753.982×1/0.2

=22.80

3 0
3 years ago
QUICK ANSWER PLEASE Evaluate for x = ─ 3 and y = 4. Problem is -1/2(2x-y)
OLga [1]

Answer:

5

Step-by-step explanation:

when the question asks for evaluate, always substitute the expression with the values given.

So, her x = -3 and y=4

So we find 1/2 of 2x - y

This is also half of -6-4 = -half of -10 = 5

Hope this helps,

Good Luck

7 0
3 years ago
Read 2 more answers
Explain why f(x) = x^2-x-6/x^2-9 is not continuous at x = 3.
iren [92.7K]

Answer:

See Explanation

Step-by-step explanation:

Given

f(x) = \frac{x^2 - x -6}{x^2 - 9}

Required

Why is the function not continuous at x = 3

First substitute 3 for x at the denominator

f(x) = \frac{x^2 - x -6}{x^2 - 9}

Factorize the numerator and the denominator

f(x) = \frac{x^2 - 3x+2x -6}{x^2 - 3^2}

f(x) = \frac{x(x - 3)+2(x -3)}{(x - 3)(x+3)}

f(x) = \frac{(x+2)(x - 3)}{(x - 3)(x+3)}

Divide the numerator and denominator by (x - 3)

f(x) = \frac{x+2}{x+3}

Substitute 3 for x

f(3) = \frac{3+2}{3+3}

f(3) = \frac{5}{6}

<em>Because </em>f(x) = \frac{x^2 - x -6}{x^2 - 9}<em> is defined when x = 3;</em>

<em>Then the function is continuous</em>

8 0
3 years ago
Amelia spent an hour an a half on a drawing .At the end she said that it was 75% done.How much time do she needs and how much ti
noname [10]
You can think of an hour and a half as 75% itself already because you have 3/4 or three thirty minute periods. So every 1/4 is a 30 minute period, and if you multiply 1/4 by 4 you get 4/4 which you ten can convert to 2 hours or 4, 30 minute time periods. (I’m sorry if I explained this in a very confusing manner). It will take Amelia 2 hours in total to finish her drawing.
7 0
3 years ago
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