Answer:
7.3
Step-by-step explanation:
Two minuses, one minus inside a bracket and one outside, make a plus.
2-(-5.3) = 2+5.3
= 7.3
Answer:
13.5
Step-by-step explanation:
When you convert fraction numbers to decimal numbers, remember they are written like this:
whole . parts
In 13 1/2, you have 13 wholes and 1/2 parts. The decimal number would look like 13 . parts
To find the decimal for 1/2, put into your calculator <u>1 ÷ 2</u>. The answer will be 0.5 Write "5" for parts. The decimal where 0.5 is will line up with the decimal in the decimal number.
13.5
Derek studied 13.5 hours for the spelling bee.
A always a euilateral triangle is a regular polygon
B. -29
6.5(22.4 - 6.8) = 101.4
.7(48) - 15) = 18.6
101.4 + 18.6 = 120
120 - 29 = 91
Answer: 8 and 9 or -9 and -8
Step-by-step explanation:
Let 
be the first of the two integers. Then, since the numbers are consecutive, 
is the other integer. We then know that the sum of the squares of 
and is equal to 145. So, now we have the equation
which can be expanded and simplified to
which then gives us the quadratic equation
This can then be factored into
Which can be simplified further into
So either 
or 
. This gives us two solutions: 8 and 9 or -9 and -8.
Hope this helps! CHEERS!
