MATHEMATICS HIGH SCHOOL

1.a crew took 24 days to complete 40% of a job; how much additional time to complete the job? 34,35,36 or 38 days?
2.a gas tank is 3.6 full. it takes 90 gallons to fill the tank. the total number of gallons the tank can hold is? 50, 89, 144 or 225?

Answers

Answer 1
Answer: its number 2 i ask 3 friends and they said ya its number 2

Related Questions

6(7a-10) how do I solve this
Rewrite the equation below so that it does not have fractions. 3/4x+2=5/6 do not use decimals in your answer.
Write the equation of a line through the points (2,3) and (-1,-9)
How do you solve x²-10x+9=0 by completing the square?
Please help!!!!! simplify

3 1/2 x 4= {Khan Academy}

Answers

Answer:

7x^4/2

Step-by-step explanation:

Simplify the number using the imaginary unit i:(square root) -28

options:
a. 2(square root) -7
b. -2(square root) -7
c. i(square root) 28
d. 2i(square root) 28

Answers

We have to simplify:
√ ( - 28 )
We know that √ (-1 ) = i ( the imaginary unit )
√ ( - 28 ) = √ 28 * ( - 1 ) = i √ ( 28 ) = i √ ( 4 * 7 ) = 2 i √( 7 )
But there is not such solution among the options.
Only correct answer ( using the imaginary unit ) is:
C. i (square root) 28
 

The simplified form is 2√7i.

Hence none of the provide option correct.

To simplify the square root of -28 using the imaginary unit i, we can first express -28 as a product of a positive number and -1:

The square root of -28 is equal to the square root of 28 times the square root of -1, which simplifies to 2 times the square root of 7 times i So, the simplified expression is:

2√7i.

The correct answer is not among the options provided.

The simplified form is 2√7i.

For similar question on simplified form.

brainly.com/question/28323654

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Sin^2(x)-cos^2(x)=0
Find all the solutions in the interval [0,2pi)
Plz help.

Answers

Hello,
as sin² x -cos² x=cos 2x
The equation is
cos 2x=0
==>2x=π/2+kπ
==>x=π/4+kπ/2 with k integer


Every function pairs __________ output value with one input valuea. more than one
b. at least one
c. exactly one

Answers

Every function pairs exactly one output value with one input value. The correct answer is C, exactly one. 

Answer:it is c exactly one.

Step-by-step explanation:

What is the domain and range of y = x+1/x-1

Answers

y = (x + 1)/(x - 1)
Domain                         Range
    -3                                 ¹/₂
    -2                                 ¹/₃
    -1                                  0
     0                                 -1
     1                           undefined
     2                                  3
     3                                1¹/₂

Match each expression with its simplified form.1. a/(a^2-4)+2/(3a+6)
2.5/a+7
3.a/ab-3/b
4.6/ab+8/a
5.3a/4b^2-b/6a

Answers

(a)/(a^2-4)+(2)/(3a+6) = (a)/((a-2)(a+2)) + (2)/(3(a+2)) = \n\n(3a)/(3(a-2)(a+2))+(2(a-2))/(3(a+2)(a-2)) = \n\n(3a+2a-4)/(3(a^2-4)) = (5a-4)/(3a^2-12)

(5)/(a)+7 = (5)/(a)+(7a)/(a) = (7a+5)/(a)\n\n\n(a)/(ab)-(3)/(b) = (1)/(b) -(3)/(b) = (1-3)/(b) = -(2)/(b)\n\n(6)/(ab)+(8)/(a) = (6)/(ab)+(8b)/(ab) = (6+8b)/(ab)\n\n(3a)/(4b^2) - (b)/(6a) = (9a^2)/(12ab^2) - (2b^3)/(12ab^2) = (9a^2-2b^3)/(12ab^2)
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