3 years ago

Study the equation. y = x2 - 4x - 77 Write the equation in graphing form (vertex form).

Mathematics

1 answer:

Julli [10]3 years ago

4 0

Answer:

y=(x-2)^2-81

Step-by-step explanation:

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vertices of parallelogram ABCD are A(2, 0), B(4, 3), C(3, 1). How many possibilities are there for the position of the fourth ve

nordsb [41]

Answer:

1 possibility is there for the the position of the fourth vertex.

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3 years ago

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:

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

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3 years ago

Simplify by distributing<br> 7(36 – 2c + 4)

Nostrana [21]

Step-by-step explanation:

7(36-2c+4)

=252 - 14c + 28

=310 - 14c

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3 years ago

Solve the equation 30=-5(m+6)+m

notka56 [123]

30 = -5(m+6) + m
30 = -5m - 30 + m
0 = -4m
0 = m

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3 years ago

Solve the above questions <br>don't spam

Bas_tet [7]

Answer:

10th question ka answer hai OK

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3 years ago