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3 years ago

A line passes through the points (7, 10) and (7,20). Which statement is true about the line

Mathematics

2 answers:

Sergeu [11.5K]3 years ago

6 0

Answer:

Step-by-step explanation:

20-10 / 7-7 = 10/0

The bottom number is called the denominator.

The denominator of a fraction cannot be zero.

Therefore the answer is the last one.

snow_tiger [21]3 years ago

6 0

Answer: Answer is D, is has no slope in the formula

Step-by-step explanation:

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Neporo4naja [7]

The answer is (0,2).

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2 years ago

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The average time a subscriber spends reading The Wall Street Journal is 49 minutes (The Wall Street Journal Subscriber Study). A

erica [24]

Answer:

$P(X>60)=P(\frac{X-\mu}{\sigma}>\frac{60-\mu}{\sigma})=P(Z>\frac{60-49}{16})=P(z>0.6875)$

And we can find the probability with the complement rule and the normal standard distirbution and we got:

$P(z>0.6875)=1-P(z$

Step-by-step explanation:

Let X the random variable that represent the time spent reading of a population, and for this case we know the distribution for X is given by:

$X \sim N(49,16)$

Where $\mu=49$ and $\sigma=16$

We are interested on this probability

$P(X>60)$

And we can use the z score formula given by:

$z=\frac{x-\mu}{\sigma}$

Using this formula we got:

$P(X>60)=P(\frac{X-\mu}{\sigma}>\frac{60-\mu}{\sigma})=P(Z>\frac{60-49}{16})=P(z>0.6875)$

And we can find the probability with the complement rule and the normal standard distirbution and we got:

$P(z>0.6875)=1-P(z$

5 0

3 years ago

Martin thinks of two numbers. He says, "The Highest Common Factor (HCF) of my two numbers is 6 The Lowest Common Multiple (LCM)

sergiy2304 [10]

Answer:

30 and 42

Hope this helps

3 0

2 years ago

Please help me:(:(:(:(

motikmotik

Answer:

1. 30/14

2. -26.775

3. 0.1668

4. -44/7 which can be simplified into -6 and -2/7

5. $10.96

5 0

2 years ago

Prove sin^2A + cos^2A = 1

Nady [450]

Step-by-step explanation:

${sin}^{2} A + {cos}^{2} A = 1 \\ lhs = {sin}^{2} A + {cos}^{2} A \\ = {sin}^{2} A + 1 - {sin}^{2} A \\ = 1 \\ = rhs \\ \therefore \: {sin}^{2} A + {cos}^{2} A = 1 \\$

8 0

3 years ago