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andreyandreev [35.5K]

3 years ago

12

1. State whether each of the following questions can or cannot be used to collect statistical information. Provide an explanatio

n for each.
(a) How many hours of homework do you do?

1 answer:

Nuetrik [128]3 years ago

8 0

The Answer would be 4

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F(x)=x^2+7x-30<br> Find the intercepts, domain and range

Zigmanuir [339]

Answer:

domain (-inf, +inf)

range [-30, +inf)

y-int = -30

x-int = -10, 3

Step-by-step explanation:

5 0

3 years ago

A fish tank is full of fish. There are 3 goldfish, 2 guppies, 6 clownfish, and 2 striped fish. If one of the goldfish dies and y

il63 [147K]

Answer:

1/2

Step-by-step explanation:

13 total fish

remove one fish

12 total fish

6 total clown fish

6/12 simplified is 1/2

7 0

2 years ago

In a triangle the first angle is 10 degrees more than the second angle. The third angle is equal to the sum of first 2 angles .

timurjin [86]

First angle= x+10
Second angle = x
Third angle = x+x+10 or 2x+10

X+10+x+2x +10=180
4x+20=180
Subtract 20 from both sides
4x=160
Divide both sides by 4
X=40
First angle =50
Second angle=40
Third angle =90

8 0

3 years ago

After 1 minute, a submarine had descended to −280 feet. After 9 minutes, the submarine had descended to −360 feet. Assuming a li

adelina 88 [10]

Answer:

the answer is 640

Step-by-step explanation:

-280-360 = 640

d(t)=-360

= 360*d*t

4 0

2 years ago

Write the equation of the line that passes through the points (-6,-1) and (-4,2). Put your answer in fully simplified point-slop

Archy [21]

$(\stackrel{x_1}{-6}~,~\stackrel{y_1}{-1})\qquad (\stackrel{x_2}{-4}~,~\stackrel{y_2}{2}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{2}-\stackrel{y1}{(-1)}}}{\underset{run} {\underset{x_2}{-4}-\underset{x_1}{(-6)}}} \implies \cfrac{2 +1}{-4 +6} \implies \cfrac{ 3 }{ 2 }$

$\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-1)}=\stackrel{m}{\cfrac{3}{2}}(x-\stackrel{x_1}{(-6)}) \implies {\large \begin{array}{llll} y +1= \cfrac{3}{2} (x +6) \end{array}}$

4 0

1 year ago