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4 years ago

HELP! WILL GIVE BRAINLIEST!! EASY! GIVE LONG DETAILED ANSWER!

Mathematics

1 answer:

OLEGan [10]4 years ago

6 0

Answer:

x² + 2x + y² + 4y = 20

(x² + 2x + 1) - 1 + (y² + 4y + 4) - 4 = 20

(x + 2)² + (y + 4)² - 5 = 20

(x + 2)² + (y + 4)² = 25

Therefore, the center is (-2, -4) and the radius is √25 = 5.

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A teacher read part of a book to a class. The graph shows the number of pages read by the teacher over the next several days. Fi

Lostsunrise [7]

Answer:

no graph nice job if you put a graph i can answer

Step-by-step explanation:

5 0

3 years ago

Convert the value from meters/second to kilometers/hour. One kilometer is equal to 1,000 meters, and 1 hour is equal to 3,600 se

REY [17]

Answer: 105 m/s =378 km/h

Step-by-step explanation:

Hi, to answer this question we have to convert the meters per second into kilometers per hour.

1m /sec = (1/1000)/ (1/3600) km/h = 3600/1000 km /h

So, we have to divide 105 by 1000, and multiply it by 3600.

Mathematically speaking

105 /1000 x 3600 = 378 km/h

Feel free to ask for more if needed or if you did not understand something.

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3 years ago

Joel has a goal to practice his clarinet for 4 1/2 hours per week. The list below shows the number of hours Joel has practiced s

garri49 [273]

Answer: 3/4 hour

Step-by-step explanation: Add them all to get 3 3/4. subtract that from 4 1/2.

4 0

2 years ago

Read 2 more answers

Please help me find the volume of the cone. See attached photo . Thank you !

Alex_Xolod [135]

Answer:

u can find the volume by using formula 1/3×π×r^2×h

In the given question,

1/3×3.14×23^2×15

=8305.3

4 0

3 years ago

Kyle has $900 in cash received for high school graduation gifts from various relatives. He wants to invest it in a certificate

poizon [28]

Given that Kyle has received 900$ in cash as a gift and Kyle wants to invest that money in CD with 4% compound interest which is being compounded annually.

That means interest rate = 4% = $\frac{4}{100} = 0.04$ in decimals.

Since interest is compounded annually, we have to use compound interest formula.

That is amount after time t is $A= P(1+\frac{r}{n}) ^{nt}$

Where P- initial amount = 900

r= rate of interest in decimals = 0.04

n= number of times interest is compounded per year = 1

t= number of years the money is invested = 5

Hence A = $900(1+\frac{0.04}{1} )^{1*5} = 900(1.04)^{5}$

= $1094.9876

So, at the end of five year period, Kyle will have 1094.9876$ to put down in his car.

7 0

3 years ago