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ElenaW [278]
3 years ago
5

Intercepts of 9x^2+9y=81

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
7 0
x=0\\
\\
9x^2+9y=81\\
\\
9.0^2+9y=81\\
\\
9y=81\\
\\
y=\frac{81}{9}\\
\\
\boxed{y=9}

y=0\\
\\
9x^2+9.0=81\\
\\
9x^2=81\\
\\
x^2=\frac{81}{9}\\
\\
x^2=9\\
\\
\boxed{x= \pm 3}
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The height of some students are given
Sergeeva-Olga [200]

Answer:

14cm

Step-by-step explanation:

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5 0
3 years ago
Rate (R) = 25/3<br>Interest = Rs. 350<br>(d) Principal = Rs. 2400<br><br>Find the time (t) ​
julia-pushkina [17]

Answer:

The value of t is 1.75 years.

Step-by-step explanation:

Given that simple interest formula is I = (P×R×T)/100. So you have to substitute the following values into the formula :

i =  \frac{prt}{100}

let \: i = 350,p = 2400,r =  \frac{25}{3}

350 =  \frac{2400 \times  \frac{25}{3} \times t }{100}

350 =  \frac{20000t}{100}

350 \times 100 = 20000t

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t = 35000 \div 20000

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8 0
4 years ago
Due to a packaging error, 4 cans labeled diet soda were accidentally filled with regular soda and placed in a 12 pack carton of
Sophie [7]

Answer:

Probability that both cans were regular soda =  \frac{1}{11}

Step-by-step explanation:

Probability = \frac{Desired outcome}{Total possible outcomes}

We are given 12 total number of cans; 4 cans have been accidentally filled with diet soda.

Probability that first can is a regular soda:

Outcome that first can is a regular soda will give us the number of regular soda available which are 4

Using formula of probability

Total possible outcomes are, n(total) = 12

Desired outcome: 4 (cans of regular soda)

P(1st can) =  \frac{4}{12} = \frac{1}{3}

Probability that 2nd can is a regular soda:

<em>As we have already taken a can of regular soda from the pack, the total soda in the pack now 11 and the regular soda left are 3.</em>

Total possible outcomes are, n(total) = 11

Desired outcome: 3 (cans of regular soda as one has already been taken)

P(2nd can) =  \frac{3}{11}


Probability that both cans are regular soda:

P(both) = P(1st can) × P(2nd can)

             = \frac{1}{3} * \frac{3}{11}

             = \frac{1}{11}

3 0
4 years ago
Read 2 more answers
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Svet_ta [14]
It’s -7
Because you subtract -2 with 7 and it equals 5x=-35 and then u divide it and it equals -7
8 0
4 years ago
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The product of two fractions that are each between 0 and 1 is also between 0 and 1.Is this true or false?
Ksenya-84 [330]
True 

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7 0
3 years ago
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