3 years ago

I WILL MARK U BRAINLIEST PLEASE HELP

Mathematics

1 answer:

larisa86 [58]3 years ago

8 0

Answer:

x is 0

y is 3

Step-by-step explanation:

Did this before in 7th grade

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Use the quadratic formula to solve the equation <br> 25x^2-30x+25=0

Reika [66]

Answer: $x=\frac{3}{5}+i\frac{4}{5},\:x=\frac{3}{5}-i\frac{4}{5}$

Step-by-step explanation:

$25x^2-30x+25=0$

$x_{1,\:2}=\frac{-\left(-30\right)\pm \sqrt{\left(-30\right)^2-4\cdot \:25\cdot \:25}}{2\cdot \:25}$

$\sqrt{\left(-30\right)^2-4\cdot \:25\cdot \:25}$

$=\sqrt{30^2-4\cdot \:25\cdot \:25}$

$=\sqrt{30^2-2500}$

$=i\sqrt{2500-30^2}$

$=40i$

$x_{1,\:2}=\frac{-\left(-30\right)\pm \:40i}{2\cdot \:25}$

$x_1=\frac{-\left(-30\right)+40i}{2\cdot \:25},\:x_2=\frac{-\left(-30\right)-40i}{2\cdot \:25}$

$x=\frac{3}{5}+i\frac{4}{5},\:x=\frac{3}{5}-i\frac{4}{5}$

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3 years ago

Tammy wants to run at least 10 miles per week. So far this week she ran 4.5 miles. How many more miles must Tammy run this week

Llana [10]

Answer:

Tammy must run 5.5 miles more this week to reach her goal

Step-by-step explanation:

10 miles - 4.5 mies = 5.5 miles

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The ordered pair would be plotted in Quadrant I

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What is the value of m in the equation 4m + 2(m + 1) = 9m + 5

ratelena [41]

M=-1

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So, its asking how much is 1 1/2 gallon to cups. Add 16+8= 24.

24 is the answer

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