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inna [77]
3 years ago
11

I need help with this what’s the answer

Mathematics
2 answers:
Vikentia [17]3 years ago
8 0
Twice the weight: 2x
2.5 pounds more: +2.5
2x + 2.5
The solution would be B
Dovator [93]3 years ago
7 0

Answer:

b

Step-by-step explanation:

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Find the number of real number solutions for the equation x^2-3+8=0
svlad2 [7]
Find value of determinant.
The determinant is a term that is inside a square root and part of the quadratic formula used for solving quadratic equations.
Let determinant be 'd'.
If d >0, Then there are 2 real solutions
If d = 0, Then there is only 1 real solutions
If d < 0, Then there are 0 real solutions but 2 imaginary solutions

d = b^2 - 4ac

For this problem, the coefficients are:
a = 1, b = -3, c = 8

d = (-3)^2 - 4(1)(8)

d = 9 -32 = -23

d is less than 0, therefore there are 0 real solutions and 2 imaginary solutions.

This is true because you cannot take square root of a negative number.



5 0
3 years ago
A standard cofee mug has a capacity of 16 fluid ounces .If annie needs to fill 26 mugs with coffee how many total quarts of cofe
enot [183]
It would be 52 quarts of coffee because there are 32 fluid ounces in a quart by the U.S. standard. I hope this helps, if you need more help ask, and have a nice day! :)
8 0
3 years ago
ASAP Use elimination -2x+5y=-20 <br> 2x-2y=20
Inga [223]

Answer:

X=10, Y=0

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Jason traveled 26 miles. The first 2 hours his speed was 4 mph, and the rest of the way his speed was 3mph. How long was he trav
horsena [70]

Answer: 8 hours

Step-by-step explanation: You would first multiply 2 hours by 4 mph, and get 8 miles. You would then subtract 8 miles from 26 miles, and have 18 miles left. You would now divide 18 miles by 3, as he is now traveling 3 miles per hour and needs to travel 18 miles. You would get 6 hours. You would now add 6 hours by the 2 hours initially traveled at 4 mph, and get 8 hours.

6 0
2 years ago
What is 15% of 375?
lesya [120]
15% * 375 = 0.15*375 = 15*375/100=56.25
6 0
3 years ago
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