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dimulka [17.4K]
3 years ago
11

30 PTS Please make sure everything is easy to understand

Mathematics
1 answer:
Semenov [28]3 years ago
8 0
So for number one you would start with parentheses (-2 x 4) and that would get you -8 and then you would forget about the parentheses and drop everything else down and now the problem would be -8 x 3 and remember anytime you have a number by parentheses it’s multiplication and that dot by the parentheses also stands for multiplication so -8 x 3 would get you -24. You could also look at it as positive 8 x 3 and that would get you 24 and then you could just add that negative sign to the 24
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If e=mc2 then what does f equal? <br> just jokes but if you do it i will give brainlyest
Klio2033 [76]

Answer:

I think the F could mean force like F =  ma (mass acceleration)

Step-by-step explanation:

3 0
3 years ago
What type of number is -16.2i
azamat

Answer:

Complex and imaginary number

Step-by-step explanation:

First, let's write the number-16.2i in the form of a+bi.

0+ (-17)i

Since -16.2i can be written in the form of a + bi, where a and b are real numbers, it is a complex number.

Also, since a=0, it is also an imaginary number.

-16.2i is complex and imaginary.

8 0
3 years ago
Read 2 more answers
ZA and B are complementary angles. If m_A = (x – 15)° and m ZB = (x + 3)º, then find the measure of ZB.​
BlackZzzverrR [31]

Answer:

ZB = 54

Step-by-step explanation:

Complementary angles add to 90 degrees

ZA + ZB = 90

x-15 + x+3 = 90

Combine like terms

2x-12 =90

Add 12 to each side

2x-12+12 = 90+12

2x = 102

Divide by 2

2x/2 = 102/2

x = 51

We want to find the measure of ZB

ZB = x+3

ZB = 51+3

ZB = 54

8 0
2 years ago
Sanjay expects 10 000 visitors at the festival. For health and safety, there must be fewer than 0.9 visitors per square metre. I
zhannawk [14.2K]
You didn't specify how big the festival is. so i can't find the answer.....but i will try
first let's devide 10,000 by 0.9 to see how many square metres we need, to fit 10,000 people
10,000÷0.9=11,111 square meters
we need atleast 11,111 meters of land for a safe festival
5 0
3 years ago
Which is the same as 15.39 + 100?
enot [183]
1.530 divided by 10 is your answer
3 0
3 years ago
Read 2 more answers
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