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scoray [572]
3 years ago
8

When x 4, y = 1 х^2 + Зry — 7у^2 Can you explain the whole answer.

Mathematics
1 answer:
sineoko [7]3 years ago
3 0
I couldn’t really understand the question but i did 4squared + 3r(1) - 7(1)squared and i got -33 + 3r
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Drag the correct steps into order to solve the equation -6x+18=-6 for x.
omeli [17]
Step 1. -6x=-24
Step 3. X=4
8 0
3 years ago
Read 2 more answers
A tea vendor gives samples of tea in cone shaped cups. The cups have a diameter of 4 inches and a height of 5 inches. If there a
Neko [114]

One sample cup will hold 11.51 ounces of fluid.

Step-by-step explanation:

Diameter of cone shaped cup = 4 inches

Radius = \frac{Diameter}{2}=\frac{4}{2}=2\ inches

Height of cup = 5 inches

Volume of cone = \pi r^2 \frac{h}{3}

Putting values

Volume of cone = 3.14*(2)^2*\frac{5}{3}\\

Volume of cone = 3.14*4*\frac{5}{3}=\frac{62.8}{3}

Volume of cone = 20.93 inches cubed

Amount of fluid in one cubic inch = 0.55 ounces

Amount of fluid in 20.93 cubic inches = 0.55*20.93 = 11.51 ounces

One sample cup will hold 11.51 ounces of fluid.

5 0
4 years ago
Billy had 55 stamps in his collection. billy’s older brother tommy had 73 stamps in his collection. how many stamps did the two
Rudik [331]
No.of stamps Billy had = 55

Number of stamps Billy's older brother had = 73

So total number of stamps two brother have together = 73 + 55
                                                                                     = 128

6 0
3 years ago
Because the values of circular functions repeat every 2pi, they are used to describe things that repeat periodically. For exampl
Sati [7]

Answer:

The answers are respectively 45, 62.5 and 27.5 degrees.

Step-by-step explanation:

According to the given explanation and the formula in the question to calculate the temperatures in a city, the maximum afternoon temperatures for March, August and October respectively are;

March:  For March, x = 3 and cos(\frac{3\pi }{6}) or cos(\frac{\pi }{2}) is equal to 0 so when inserted into the equation we find that t = 45 - 35.0 = 45

August: For August, x = 8 and cos(\frac{8\pi }{6}) is equal to -0.5 so when inserted into the equation we find that t = 45 - 35.(-0.5) = 62.5

October: For October, x = 10 and cos(\frac{10\pi }{6}) is equal to 0.5 so when inserted into the equation we find that t = 45 - 35.(0.5) = 27.5

I hope this answer helps.

7 0
4 years ago
a person travels for 8 hrs she has a break between 3.00 -3.30pm then another break between 4.00 - 5.00 and then another break be
Anit [1.1K]

Answer: 5 1/2 hours OR 5 hrs 30 minutes

Step-by-step explanation:

She travels for 8 hours

Out of this, 2 1/2 hours she takes a break.

She has actually travelled 5 1/2 hours

3 0
3 years ago
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