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Neporo4naja [7]
3 years ago
11

Solve the system x squared plus y squared equals 9, y equals x plus 1 to the nearest tenth.

Mathematics
1 answer:
kkurt [141]3 years ago
6 0

Answer:

this is how I know to solve this question some of the answers are not in the given options please don't get mad but this is really how I know 2 solve it. and sorry for some of the slangs used in solving the question hope it's helps sorry please don't report me thank you bye

Step-by-step explanation:

x1 =1.1

y1=3.1

x2=-3.1

y2=-1.1

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tina saved 25 more dimes than nickels. she saved 6 times as many dimes as nickels. how much money did she save in all
nikklg [1K]
25 ÷ (6 - 1) = 25 ÷ 5 = 5, she saved 5 nickels,

5 nickels = 5 × 5 = 25 cents = $0.25

5 + 25 = 30, she saved 30 dimes, 30 dimes = 300 cents = 3 dollars.

3 + 0.25 = $3.25, she saved $3.25 in all.
4 0
4 years ago
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(6.253•10^-2)(7.112x10^3) in scientific notation
zlopas [31]

Answer:

4.4471336 * 10^2.

Step-by-step explanation:

(6.253•10^-2)(7.112x10^3)

= 6.253*7.112 * 10^-2*10^3

= 44.471336 * 10^1

= 4.4471336 * 10^2.

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3 years ago
Find the volume of a sphere with a surface area of 2916 squared pi
Svet_ta [14]

Answer:

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Step-by-step explanation:

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3 years ago
Are all squares trapezium?
Rina8888 [55]

Answer:

yes

Step-by-step explanation:

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8 0
3 years ago
Rationalize the denominator of \frac{1 \sqrt{3}}{1-\sqrt{3}}. When you write your answer in the form A B\sqrt{C}, where A, B, an
kobusy [5.1K]

Answer:

The value of ABC is 6.

Step-by-step explanation:

Consider the expression

\frac{1+\sqrt{3}}{1-\sqrt{3}}

Rationalize the denominator.

\frac{1+\sqrt{3}}{1-\sqrt{3}}\times \frac{1+\sqrt{3}}{1+\sqrt{3}}

\frac{(1+\sqrt{3})^2}{1^2-(\sqrt{3})^2}

\frac{1^2+(\sqrt{3})^2+2\sqrt{3}}{1-3}

\frac{1+3+2\sqrt{3}}{-2}

\frac{4+2\sqrt{3}}{-2}

\frac{4}{-2}+\frac{2\sqrt{3}}{-2}

-2-\sqrt{3}              ..... (1)

The answer in the form

A+B\sqrt{C}           .... (2)

On comparing (1) and (2), we get

A=-2,B=-1,C=3

We need to find the value of ABC.

ABC=(-2)(-1)(3)=6

Therefore the value of ABC is 6.

7 0
3 years ago
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