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3 years ago

Which is the graph of X^2/9-y^2/4=1

Mathematics

1 answer:

lesantik [10]3 years ago

7 0

Answer:

Step-by-step explanation:

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C. Because slope = rise over run the slope of a "downhill" line must be run

nataly862011 [7]

I can’t find the question what is it

5 0

3 years ago

PLEASE HELPP!!! And show the work/explain please. Picture is above :)

ehidna [41]

Answer:

x = -24/7

Step-by-step explanation:

To solve, you need to multiply both sides by 10 ( the GCF of 5 and 2) to get rid of the fractions. Once multiplied, you get this:

2(4x-2) + 5(1) = 5(3x+7) - 10(1)

Now, just distribute the parenthesis:

8x - 4 + 5 = 15x + 35 - 10

Now, combine like terms:

8x + 1 = 15x + 25

15x + 25 = 8x + 1 (rearranged the equation)

Subtract the x's:

7x + 25 = 1

Now solve:

7x = -24

x = -24/7

5 0

3 years ago

The geometric sequence shown can be represented by the function y = (1/2) ^ n where the domain of the function is

meriva

Answer:

Correct Answer: D

Step-by-step explanation:

Geometric Sequence

We can find each term of a geometric sequence if we have the general formula by replacing n for any integer number in the given domain. n must be an integer because it's the position where the term is located. For example, $a_2$ is the term located in position 2, so n cannot be irrational or decimal. The sequence provided is

$\displaystyle y=\left( \frac{1}{2} \right )^n$

The variable n starts from 0 and has no limit, so the domain is a set of integers

$\{0,1,2,3,4...\}$

$\boxed{\text{Correct Answer: D}}$

3 0

4 years ago

A quality control inspector has drawn a sample of 10 light bulbs from a recent production lot. Suppose 20% of the bulbs in the l

Neko [114]

Answer:

The probability is 0.0008.

Step-by-step explanation:

Let X represents the event of defective bulb,

Given, the probability of defective bulb, p = 20 % = 0.2,

So, the probability that bulb is not defective, q = 1 - p = 0.8,

The number of bulbs drawn, n = 10,

Since, binomial distribution formula,

$P(x=r) = ^nC_r p^r q^{n-r}$

Where, $^nC_r = \frac{n!}{r!(n-r)!}$

Hence, the probability that exactly 7 bulbs from the sample are defective is,

$P(X=7)=^{10}C_7 (0.2)^7 (0.8)^{10-7}$

$=120 (0.2)^7 (0.8)^3$

$=0.000786432$

$\approx 0.0008$

6 0

3 years ago

8) Keith had eighty - one dollars to spend on eight books. After buying them he had seventeen dollars.

Yanka [14]

You would do 81-17=64 because they had eighty one dollars in the beginning and 17 dollars left. then divide it by 8 because that is how many books were bought.
Equation: i’m not sure
Answer: 8

4 0

3 years ago

Read 2 more answers