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castortr0y [4]
2 years ago
13

It's urgent please help

Mathematics
1 answer:
Alchen [17]2 years ago
7 0

Answer:

14y=mxc I'm I right kwkbs

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If Segment PQ = 10 and Segment PR = 25, what is the length of Segment QR?
Blizzard [7]

Answer:

15

Step-by-step explanation:

6 0
4 years ago
13....................
Mashcka [7]

13.

(a)

y=-5x^2+21x-3

for x = 2:

y=-5(2)^2+21(2)-3=-20+42-3=19

for x = 5

y=-5(5)^2+21(5)-3=-125+105-3=-23

(b)

The graph is:

(c)

Using the graph:

\begin{gathered} x=1.8,y=18.6 \\ x=0.548,y=7 \\ x=3.65,y=7 \end{gathered}\begin{gathered} x=1.8 \\ y=-5(1.8)^2+21(1.8)-3=-16.2+37.8-3=18.6 \end{gathered}\begin{gathered} y=7 \\ -5x^2+21x-3=7 \\ -5x^2+21x-10=0 \end{gathered}

Using the quadratic formula:

\begin{gathered} x=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a} \\ x=\frac{-21\pm\sqrt[]{21^2-4(-5)(-10)}}{2(-5)} \\ x=\frac{-21\pm\sqrt[]{241}}{-10} \\ x=0.54758 \\ or \\ x=3.6524 \end{gathered}

6 0
1 year ago
What is the answer for (10+4)x7-45*9 ???
Viktor [21]
I got -307 (if the x stands for multiplication)
6 0
3 years ago
Read 2 more answers
10 feet wide by 30 feet long by 1/3 foot deep.what is the volume?
Ket [755]
----------------------------------------------
Formula
----------------------------------------------
Volume = Length x Width x Height

----------------------------------------------
Apply Formula
----------------------------------------------
Volume = 10 x 30 x 1/3 = 100 ft³

----------------------------------------------
Answer: 100 ft³
----------------------------------------------
4 0
3 years ago
Read 2 more answers
They pay $18 for 12 dozen buttons. How much do 4 dozen buttons cost.
Anika [276]

Answer:

72

Step-by-step explanation:

because if you add 18, 4 times or 18 x 4 it will give your 72

hope this helps

4 0
2 years ago
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