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3 years ago

Please help! (10 points i only have 21!)

Mathematics

2 answers:

vovikov84 [41]3 years ago

7 0

Answer:

what do we answer? you did not attach anything at all? pls attatch a picture or screenshot that way we can help.

Dennis_Churaev [7]3 years ago

5 0

You need a picture so that we can help you

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Can you answer those 2 questions please?!thank you

Brrunno [24]

Answer:

Question 1: Fraction

Question 2: Equal

Step-by-step explanation:

I know Q1 is right, I'm not so sure about Q2 so I'm sorry if that's wrong

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2 years ago

I am not sure how sigma notation works, can somebody explain how to solve this? It isn't the second choice.

Masja [62]

Answer:

first answer is correct

Step-by-step explanation:

Hello, we want to write 2 + 4 + 6 + ... + 20

for n = 1, 2n = 2*1 =2

for n = 2, 2n = 2*2=4

for n = 3, 2n=2*3=6

etc

$\displaystyle \sum_{n=1}^{10} {2n} = 2*1 + 2*2 +2*3+2*4+...+2*10=2+4+6+8+...+20$

thanks

6 0

2 years ago

Danessa is working with consecutive even numbers. If x is her first number, which expression represents her second number? O x +

podryga [215]

Answer:

I believe its x + 2

Step-by-step explanation: hope this helped !

4 0

2 years ago

Gianna used two refrigerators, each set to a different temperature, to cool two cups of hot liquid

ludmilkaskok [199]

Answer:

Whichever refrigerator has the HIGHEST temperature will make the hot liquid cool slower and whichever one has the LOWEST temperature will cool the hot liquid faster

Step-by-step explanation:

EXAMPLE: If one is 55 degrees and the other one is 5 degrees, the one that is 5 degrees will cool the hot liquid faster.

3 0

2 years ago

Read 2 more answers

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre

LiRa [457]

Answer:

x = 7, -7

Step-by-step explanation:

(2x-1)(3x+2)+x+292

3x - 2x +x = 2 - 1 + 292

(6)x - 294 = 6(x - 49)

Use communicative property of multiplication

Example: (A+B)(A-B)

$Ax^{2} -AB+BA-Bx^{2} =Ax^{2} -AB+AB-Bx^{2} =\\Ax^{2} -Bx^{2}$

49 is the square of 7

x square is the square of x to the power of 1

(x+7)(x-7)

5 0

2 years ago