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lawyer [7]
3 years ago
10

A leak in a water tank causes the water level to decrease by 3.6×10−2 millimeters each second. About how many millimeters does t

he water level in the tank decrease in 5 hours, or 1.8×104 seconds?
Drag and drop the values to the boxes to express the answer in scientific notation.

2     5     5.4      6.5     10^-8     10^-2     10^2     10^6

--------x--------mm
Mathematics
1 answer:
frutty [35]3 years ago
3 0
The correct answer is 6.5 x 10^2.

We have the amount for 1 second. To convert to 5 hours, we need to multiply it by 60 and 60 and 5.

0.036 x 60 x 60 x 5 = 648

Or about 6.5 x 10^2
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I need help, please and thank you.
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Step-by-step explanation:

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5 0
3 years ago
How.to express the sum 21/9 in a whole number and fractions
JulijaS [17]

Answer:

2 1/3

Step-by-step explanation:

21/9 is 2.33 or 2 1/3

8 0
2 years ago
Find the TWO integers whos product is -12 and whose sum is 1<br>​
Deffense [45]

Answer:

\rm Numbers = 4 \ and \ -3.

Step-by-step explanation:

Given :-

The sum of two numbers is 1 .

The product of the nos . is 12 .

And we need to find out the numbers. So let us take ,

First number be x

Second number be 1-x .

According to first condition :-

\rm\implies 1st \ number * 2nd \ number= -12\\\\\rm\implies x(1-x)=-12\\\\\rm\implies x - x^2=-12\\\\\rm\implies x^2-x-12=0\\\\\rm\implies x^2-4x+3x-12=0\\\\\rm\implies x(x-4)+3(x-4)=0\\\\\rm\implies (x-4)(x+3)=0\\\\\rm\implies\boxed{\red{\rm x = 4 , -3 }}

Hence the numbers are 4 and -3

4 0
2 years ago
Read 2 more answers
Rewrite the expression without using grouping symbols 11(23-x)
Triss [41]
<span>11(23-x)
= 11(23) - 11x
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7 0
3 years ago
What is the value of the fourth term in a geometric sequence for which a1 =<br> 30 and r= 1/2
Tcecarenko [31]

Answer:

3¾

Step-by-step explanation:

Geometric sequence also known as geometric progression, can be said to be a sequence with a constant ratio between the terms.

Formula for geometric sequence:

a^n = a ( n-1 ) * r

Given:

First term, a1 = 30

ratio, r = ½

Required:

Find the fourth term

Where, the first term, a¹ = 30

Second term: a² = 30 * ½ = 15

Third term: a³ = 15 * ½ = 7.5

Fourth term: a⁴ = 7.5 * ½ = 3.75 = 3¾

Therfore the fourth term of the geometric sequence is 3¾

6 0
3 years ago
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