The sum of 8 and 7 , doubled

Answers

Answer 1

Answer: When you're talking about sums, that means you are adding. So, you do 8+7=15. The sum of it being doubled, you say? 15x2=30, or 15+15=30. Hope this helped :)

Answer 2

Answer: Here is a hint, "sum" is adding up therefore, the question is asking "The number of 8 + 7, then multiplied by 2. 8+7x2 = 30

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What is the answer to k(x)=6x+100 ??

Answers

What do you mean? That question doesn't make sense.

141000000 in scientific notation

Answers

First you want to add a decimal after the first one to make it 1.41. Now you want to count the amount of places after the 1. It would be 8 places for 141000000 in scientific notation is 1.41 x $10^(8)$ .

To convert it to scientific notation, first you have to move the decimal to the right of the first number = 1.41. Second, you see how many places it takes to get back to the original number = 8 digits. Third, you multiply the new number by 10 to the 8th power = 1.41 × 10^{8} → scientific notation

1/2(4x-9)=2x+8A.
exactly one real solution,

B.
no real solutions
C.
infinite real solutions

D.
exactly one real solution,

Answers

Let us first try and solve this equation to see how many solutions are for this equation.

We need to have x on one side of the equation and everything on the opposite side of x.

1/2(4x - 9) = 2x + 8 ; Start
2x - 4.5 = 2x + 8 ; Distribute the 1/2 across 4x and -9
2x = 2x + 12.5 ; Add 4.5 to each side of the equation
0 = 12.5 ; Subtract 2x from each side of the equation

As we can clearly see, this equation has 0 answers.

I’m completely dumb so can someone help me

Answers

Its A because it is measuring the puppies weight not just at birth but over a long amount of time so it can’t be B. It’s not just for a specific day so it can’t be C. It’s clearly not just showing the weight of the puppies so it can’t be D. It’s a comparison of both the weight and the amount of days that go by and the line of best fit is used to approximate how heavy a puppy would be on any day if you were to put in your own data. Hope this helps.

A triangular pyramid has a base with an area of 11.3 square meters and has lateral

Answers

Hi There! :)

A triangular pyramid has a base with an area of 11.3 square meters and has lateral

20 inches.

sally bought five dozen eggs from the grocery store to bake some cakes. She plans to bake the cakes. She plans to bake the cakes over eight days. How many eggs did Sally buy.

Answers

5 dozen eggs, or 60 (12×5)

5 dozen eggs is the answer

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