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ratelena [41]
3 years ago
12

Need help on this question

Mathematics
2 answers:
coldgirl [10]3 years ago
7 0

Answer:

I dont really know for sure but I think its 5

stellarik [79]3 years ago
3 0

Answer:nhjhbghhnkjn hojn

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In this equation, the variable is divided by 8. What is the reverse of this
Marrrta [24]

Answer:

A

Step-by-step explanation:

multiplication is the inverse of division and subtraction is the inverse of addition

4 0
3 years ago
Name two things in your classroom that can hold more than 1 cup
sergij07 [2.7K]
Water bottle,Cup.is what can hold 2 cups
3 0
3 years ago
Read 2 more answers
Find the sum of integers from 33 to 47:
ICE Princess25 [194]

Answer:

Step-by-step explanation:There are formulas to work this out, but you can also suss out an answer by a liberal application of critical thinking.

Okay, you want to add 51 + 52 + 53 + … + 99 + 100, right? (The … represents all the numbers in between, in case you were wondering.)

Well, that’s a total of 50 numbers. And if you know anything about addition, you know that it doesn’t matter what order you add them.

So you could also say 51 + 100 + 52 + 99 + 53 + 98 + … and so on.

Let’s see what happens. 51 + 100 = 151. So far so good.

Then, 52 + 99 also equals 151. And 53 + 98 also equals 151. Since there are 50 numbers, that’s 25 pairs that are going to add up to 151.

151 + 151 + 151 + 151 + … (21 more instances of 151).

So we can simplify our workload a bit. Instead of adding up all the numbers by hand, we can just multiply 151 by 25.

151 x 25 = 3775

From that, we can work out a generic formula that will allow you to add any sequence of numbers…without actually adding.

Let a be the first number in the sequence, and let n be the last number in the sequence. The number of numbers is (n - a) + 1. (You have to add 1, because if you just subtract, it’s like you’re losing the lowest number in the sequence).

So…you get the sum by adding the first and last number in the sequence, and then multiplying that result by half of the total number of numbers.

(a+n)((n−a)+12)  

an−a2+a+n2−an+n2  

−a2+a+n2+n2  

−a(a−1)+n(n+1)2  

Let’s check to see if it works!

−51(51–1)+100(100+1)2  

−51(50)+100(101)2  

−2550+10,1002  

75502  

3775  

Note that if the starting number were 1, the formula would simplify to  n(n+1)2

8 0
3 years ago
Read 2 more answers
Sophie pays m dollars to rent a car for the weekend. On the drive
antiseptic1488 [7]

Answer:

1/2m+25

Step-by-step explanation:

if melody pays 1/2 then sophie pays 1/2 too and then she also spends 25 so you just have to add them together.

7 0
3 years ago
Read 2 more answers
The approximate cube of 9.8 is?​
lianna [129]

Answer:

9.8 Cubed

9.8 cubed, (9.8)3, is the number you get when multiplying 9.8 times 9.8 times 9.8.

It can also be looked at as exponentiation involving base 9.8 and exponent 3.

The term is usually pronounced 3rd power of 9.8 or 9.8 to the third power.

The cube of 9.8 is an imperfect cube because 941.192 is the product of the three equal numbers 9.8 which contain decimals.

It can be written as 9.8 × 9.8 × 9.8 or in exponential form.

Read on to learn everything about the number (9.8)³.

Number: 9.8

Number Cubed: 941.192

Step-by-step explanation:

hope this helps...

have a nice weekend...

ヽ(ヅ)ノ

4 0
3 years ago
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