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Rus_ich [418]
3 years ago
11

Which quadratic equation has roots 7 and -2/3

Mathematics
1 answer:
lara31 [8.8K]3 years ago
7 0
X² - 4x - 21 = 0

hope this helps
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What two numbers add up to 12 but multiply to 20
marta [7]

Answer:

I think it’s 10plus2 then u multiply

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Tom has 15 pencils. 5 of them do not have erasers. which ratio compares the number of pencils without erasers to the number of p
Ipatiy [6.2K]
B. 5:10 because 15-5=10 which is the number of pencils with erasers and the 5 left are the amount of pencils which are missing an eraser
6 0
3 years ago
A trough is 12 ft long and its ends have the shape of isosceles triangles that are 3 ft across at the top and have a height of 1
V125BC [204]

Answer:

\frac{dh}{dt}=0.5ft

Step-by-step explanation:

From the question we are told that:

Length l=12

Top length l_t=3ft

Height h=1ft

Rate R=14 ft3/min

Water rise w=4

Generally the equation for Velocity is mathematically given by

V=frac{1}{2}wh'(l)\\\\V=frac{1}{2}wh'(12)

V=18h'^2

Therefore

R=18(2h)(\frac{dh}{dt})

Where

h=\frac{3}{4}

Therefore

\frac{dh}{dt}=\frac{R}{18(2h)}

\frac{dh}{dt}=\frac{14}{18(2.3/4)}

\frac{dh}{dt}=0.5ft

8 0
3 years ago
cycle charges an initial price of $15 plus $0.75 per hour for bike rentals which is represented by the expression 15+0.75h
Nady [450]
Is that what you are looking for?

8 0
2 years ago
How do the values compare? Order the values from least to greatest.
aleksley [76]
Im pretty sure it would be ordered: -2 1/2, -1/2, |1/2|, 1 1/2, |-2|, |-2 1/2|

This is because
-1/2 stays as -1/2
the absolute value of |-2| is 2
the absolute value of |1/2| is 1/2
the absolute value of |-2 1/2| is 2 1/2
-2 1/2 stays as -2 1/2
and 1 1/2 stays the same as well.
If you take all these numbers (-1/2, 2, 1/2, 2 1/2, -2 1/2, and 1 1/2) and order them from least to greatest, you would get:
-2 1/2, -1/2, 1/2, 1 1/2, 2, 2 1/2
which is -2 1/2, -1/2, |1/2|, 1 1/2, |-2|, |-2 1/2|

Im not exactly sure if it is all correct, but i hope this helps! :)
8 0
2 years ago
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