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Snezhnost [94]
3 years ago
7

What is the correct answer to this Khan Academy Question, what is a,b,and c?

Mathematics
1 answer:
ANTONII [103]3 years ago
8 0
A -(3/7)
b -(2/8)
c -0.2
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Which is the x-value of the solution of the system of equations? y=3x^2+15 y=5x^2-17
Readme [11.4K]

Answer:

C. x = ±4

Explanation:

<u>Given two equation's</u>:

  1. y = 3x² + 15
  2. y = 5x² - 17

Solve them simultaneously:

 y       =       y

3x² + 15 = 5x² - 17

5x² - 3x² = 15 + 17

2x² = 32

x² = 16

x = ±√16

x = ±4

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3 years ago
A T-shirt design company charges your team an initial fee of $25 to create the team's design. Each T-shirt printed with your des
Korvikt [17]

Answer:

Part A)

C(t)=25+8t

Part B)

C(35)=\$305

Step-by-step explanation:

We will let <em>t</em> represent the total number of t-shirts printed.

We are charged an initial fee of $25. So, for our linear model, our constant is 25. And each t-shirt printed costs an additional $8. So, for <em>t</em> t-shirts, it will cost an additional 8<em>t</em> dollars.

Part A)

So, from the above information, we can write the following function:

C(t)=25+8t

Where <em>C(t)</em> is the total cost for <em>t</em> shirts.

The 25 represents our initial fee and the <em>8t</em> represents the cost for <em>t</em> t-shirts.

Part B)

So, if we have a team of 35 members, we will need 35 t-shirts.

Then the total cost will be given by:

\begin{aligned}C(35)&=25+8(35)\\&=25+280\\&=\$305\end{aligned}

So, it will cost a total of $305.

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3 years ago
If 75% of budget is 1200, what is the full budget using a table?
Alisiya [41]

Answer: full budget of 100% will be 1600

Step-by-step explanation:

If 75% = 1200

Full budget will be 100%

Represent the question as if 75% = 1200

Then 100% = x

Cross multiply:

75%x = 1200%

Divide both sides by 75%

x = 1200%/75%

x = 16 × 100

= 1600

3 0
4 years ago
A man ate 100 bananas in five days, each day eating 6 more than the previous day. How many bananas did he eat on the first day?​
aleksandr82 [10.1K]

Answer:

i think its 26

Step-by-step explanation:

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4 years ago
Points A and B are located at (-7, 6) and (5, 6). What is the distance in units between points A and B?
Eduardwww [97]
The distance is 12 units
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