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stellarik [79]
3 years ago
7

THIS IS FOR 15 POINTS PLEASE HELP. FIND THE Y INTERCEPT AND SLOPE PLEASE

Mathematics
1 answer:
labwork [276]3 years ago
3 0

Answer:

Slope=1      

Step-by-step explanation:

I don't know the y intercept sorry

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there is a beaker of 3.5% acid solution and a beaker of 6% acid solution in the science lab. Mr. Larson needs 200ml of 4.5% acid
disa [49]
Below are the choices:

A. 80 mL of the 3.5% solution and 120 mL of the 6% solution 

<span>B. 120 mL of the 3.5% solution and 80 mL of the 6% solution </span>

<span>C. 140 mL of the 3.5% solution and 60 mL of the 6% solution </span>

<span>D. 120 mL of the 3.5% solution and 80 mL of the 6% solution
</span>
Let fraction of 3.5% in final solution be p. 

<span>p * 3.5 + (1 - p) * 6 = 4.5 </span>

<span>3.5p + 6 - 6p = 4.5 </span>

<span>2.5p = 1.5 </span>

<span>p = 3/5 </span>

<span>3/5 * 200 = 120 </span>

<span>Therefore the answer is B. 120 ml of 3.5% and 80 ml of 6%.</span>

6 0
3 years ago
Write a compound inequality to represent all of the numbers between -4 and 6.
OlgaM077 [116]
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-4<x AND x<6
6 0
3 years ago
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faltersainse [42]

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Customers arrive randomly at a service point at an average rate of 30 per hours.Assuming a Possition distibution,calculate the p
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3 years ago
Which expression is a factor of 21x2 + 13x – 20?A. 3x – 4B. 7x - 5C. 7x + 4D. 3x + 5
LUCKY_DIMON [66]

Answer:

B. 7x - 5

Explanation

Given the expression 21x^2 + 13x – 20, to get which of the given expression is a factor we will have to factorize the equation first as shown;

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= (7x-5)(3x+4)

Hence one of the factors is 7x - 5

8 0
1 year ago
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