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den301095 [7]
2 years ago
8

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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How many miles is 2/3
Hoochie [10]

1 mile = 1760 yards

=2/3*1760

2*586.66

=1173.33 yards


hope this helps

5 0
3 years ago
Select the coordinate point that is a solution of equations. 2x+y=7; 3x-4y=5
grandymaker [24]

Answer:

D (3,1)

Step-by-step explanation:

solving simultaneous equations

Arrange equations

2x+y=7

3x-4y=5

make y side cancell by addition by multiplying by 4 and 1 as shown

4{2x+y=7}

1{3x-4y=5}

8x+4y=28

3x-4y=5

11x=33

x=33/11=3

substitute for x=3 in 3x-4y=5

9-4y=5

4=4y

y=1

4 0
3 years ago
Read 2 more answers
Is Tracking Effective? Now that you have read and reviewed the material on cognitive development during adolescence, take your l
Mila [183]

Answer:

Step-by-step explanation:

1. The independent variable in this experiment would be the separation of students into distinct groups based on standardized tests of ability and achievement.

2. To implement the independent variable, the experimenter needs to divide the 100 volunteers into separate groups based on standardized tests of ability and achievements. He must also make sure that each groups’ students’ ability levels are the same. Then they would be given tasks as per their ability level.

3.The dependent variable here would be the academic achievements of the groups formed based on ability.

4. First, the volunteers’ achievement would be tested. Then based on their abilities as per standardized tests, they would be divided into groups of students with similar abilities. Then they would be given tasks as pr their abilities. Finally, their achievements would be measured to see if there is any significant difference in achievement between them before and after the grouping as per ability.

5.

6. Null Hypothesis: There would be no significant difference between the academic achievements in high school students of varying abilities due to separation into distinct groups based on standardized tests of ability and achievement.

Alternative Hypothesis: There would be a significant difference between the academic achievements in high school students of varying abilities due to tracking.

8 0
3 years ago
David received a 20% tip on a bill of $86.40. how much was his tip?
choli [55]

To find the tip of the bill. You will need to find how much of $86.40 is 20%. In this question, they're asking how much is the tip, not how much will the final price be.

When you multiply a percentage you move the decimal point 2 times to the left: 20. → .20

You would multiply $86.40 by .20

When you solve it 86.40 × .20 = 17.28

$17.28 is 20% of $86.40

$17.28 will be the amount he got for his tip.


3 0
3 years ago
Read 2 more answers
URGENT HELPP<br><br> 3-2|x+2|=-7 - please show ur work tyy
luda_lava [24]

Answer:

x=-9

Step-by-step explanation:

3-2=1*x=2=x+2=-7=x=-9

5 0
2 years ago
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