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makkiz [27]
3 years ago
14

Determine the number of real solutions each quadratic equation has

Mathematics
1 answer:
Serjik [45]3 years ago
8 0

Answer:

where is your quadratic equation

Step-by-step explanation:

b^2-4ac>0=2 real # solutions

b^2-4ac=0=1 real # solutions

b^2-4ac<0=0 real # solutions

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Write the expression without the fraction bar.
kirill115 [55]
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3 years ago
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Look at the picture below
Lelu [443]

Answer: Phillip is correct. The triangles are <u>not </u>congruent.

How do we know this? Because triangle ABC has the 15 inch side between the two angles 50 and 60 degrees. The other triangle must have the same set up (just with different letters XYZ). This isn't the case. The 15 inch side for triangle XYZ is between the 50 and 70 degree angle.

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At this point, there isn't enough information. So that means John and Mary are incorrect, leaving Phillip to be correct by default.

Note: Phillip may be wrong and the triangles could be congruent, but again, we don't have enough info. If there was an answer choice simply saying "there isn't enough info to say either if the triangles are congruent or not", then this would be the best answer. Unfortunately, it looks like this answer is missing. So what I bolded above is the next best thing.

7 0
3 years ago
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The volume of a CONE-shaped hole is 75pi ft cubed. If the hole is 9 feet deep, what is the radius of the hole?
Arturiano [62]

Answer:

The radius of hole is 5 feet

Step-by-step explanation:

Depth of conical hole = 9 feet

Let the radius of hole be r

Volume of conical hole =\frac{1}{3} \pi r^2 h

So, Volume of conical hole =\frac{1}{3} \pi \times r^2 \times 9

We are given that volume of a CONE-shaped hole is 75pi ft cubed.

So,\frac{1}{3} \pi \times r^2 \times 9=75 \pi

\frac{1}{3} \times r^2 \times 9=75

r^2=\frac{75 \times 3}{9}

r=\sqrt{\frac{75 \times 3}{9}}

r=5

Hence The radius of hole is 5 feet

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3 years ago
(1 point) Divide and simplify your answer.
VashaNatasha [74]

Answer:

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Step-by-step explanation:

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2 years ago
A drawing of a rectangular garden is 5 inches and a width of 3.5 inches. The scale is 1 in: 3 ft. What is the length and width o
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5•3=15, 3.5•3=10.5....... the regular length of the length and width is :::::: LENGTH= 10.5 feet..... HEIGTH=15 feet
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