2 years ago

Explain 42+28 by making tens

Mathematics

1 answer:

djverab [1.8K]2 years ago

5 0

Answer:70

Step-by-step explanation:

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The distance between the points (-2, -4) and (3,8) is?

forsale [732]

Answer:

(5,4)

Step-by-step explanation:

6 0

3 years ago

Evaluate 5! + 2!.<br> Idk what is it

Sedbober [7]

Answer:

122

Step-by-step explanation:

If a number has an explanation point on the side of it, you should multiply all numbers that are equal to are less than that number.

$5!=5*4*3*2*1=120\\2!=2*1=2\\120+2=122$

4 0

3 years ago

Solve the equation by completing the square. If necessary, round to the nearest hundredth.

diamong [38]

Ax^2+bx=c
REMEMBER THIS

ok
first, make sure that a is 1
done

now take 1/2 of b and square it

-18/2=-9, (-9)^2=81
add that to both sides

x²-18x+81=19+81
x²-18x+81=99
factor perfect square
(x-9)²=100
square root both sides
don't forget positive and negative root
x-9=10
x-9=-10
ad 9 to both sides

x=19
x=-1

answer is -1; 19

2nd choice is answer

8 0

3 years ago

Read 2 more answers

Quad Enterprises is considering a new three-year expansion project that requires an initial fixed asset investment of $2.38 mill

Angelina_Jolie [31]

Step-by-step explanation:

By using Ms Excel you should do this problem.

Kindly check the attachment for solution and cell reference for the clear understanding.