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2 years ago

Write the equation in standard form for the circle -20y = -x^2 - y^2 - 36

Mathematics

2 answers:

sasho [114]2 years ago

7 0

Answer:

(y-10)/64 - x^2/64=1

OLga [1]2 years ago

3 0

Answer:

x^2 + (y-10)^2 = 64 I think

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14. A plane traveled from California and back. It took one hour longer on the way out than it did on the way back. The plane's a

kow [346]

Answer:

C. 7 hours

Step-by-step explanation:

Let the time for the trip out be represented by t. Then the time for the return trip is t-1. The distance was the same for both trips, so we have ...

distance = speed × time

300t = 350(t -1)

300t = 350t -350 . . . . eliminate parentheses

350 = 50t . . . . . . . . . . add 350-300t

7 = t . . . . . . divide by 50

The trip out took 7 hours.

8 0

3 years ago

Laurie earns $6.50 per hour at the fruit

PtichkaEL [24]

Answer- 2 hours

6.50+3= 9.50
9.50•3= 28.5
54.50-28.50= 26
26/2= 13
13/ 6.50= 2

5 0

3 years ago

In the diagram, GB = 2x + 3..

zaharov [31]

<u>Answer-</u>

$\boxed{\boxed{GB=15\ units}}$

<u>Solution-</u>

From the attachment,

AD = AE, so FA is a median.

BD = BF, so BE is a median.

CF = CE, so DC is a median.

And G is the centroid.

From the properties of centroid, we know that

The centroid divides each median in a ratio of 2:1

So,

$\Rightarrow FG:AG=2:1$

$\Rightarrow \dfrac{FG}{AG}=\dfrac{2}{1}$

$\Rightarrow FG=2\times AG$

$\Rightarrow 5x=2\times (x+9)$

$\Rightarrow 5x=2x+18$

$\Rightarrow 3x=18$

$\Rightarrow x=6$

So, GB will be $2(6)+3=15$ units

5 0

3 years ago

Read 2 more answers

Hello can you please help me posted picture of question

irina [24]

We are to form the combination of 6 objects taken 2 at a time. This can be expressed as 6C2

$6C2= \frac{6!}{2!*4!} \\ \\ 
= \frac{6*5}{2} \\ \\ 
=15$

This means, there can be 15 different combinations of 2 members that can sit in the front row.

So, the answer to this question is option A

6 0

3 years ago

Read 2 more answers

Julie multiplies 6.27 by 7 and claims the product is 438.9. Explain without multiplying how you know Julie’s answer is not corre

Karolina [17]

Answer:

SHe put the decimal point in the wrong spot, it's suppose to be 43.89

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers