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3 years ago

Can a line be parallel to a segemnt?

1 answer:

6 0

You can describe lines, rays, and line segments by the way they meet or cross each other. Words Parallel lines are always the same distance apart. They do not meet. Words Lines that meet or cross each other are called intersecting lines. Hope this helps.

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There were 6 students sitting at each of the four benches then 3 students left to get water how many students were left on the b

Vikki [24]

Answer:

Step-by-step explanation: if there is 6 students on each bench and, there are 4 bench’s you would need to multiply 6 by 4 and get a total of 20 students. and if 3 students left then you would subtract 3 from 20 and get 17 which is how many students are left on the benches

6 0

3 years ago

Read 2 more answers

What is the area of the figure:

Leni [432]

A 45 45 90 triangle
so a = b
a^2 + b^2 = c^2
a^2 + a^2 = c^2
2a^2 = c^2
2a^2 = 24^2
 2a^2 = 576
a^2 = 288
a = 12√2
b = a = 12√2

Area of triangle:
= 1/2 (12√2)(12√2)
= 1/2(288)
= 144

answer
Area = 144 ft^2

8 0

3 years ago

What is the length of the base b?

musickatia [10]

Answer:

5 units

Step-by-step explanation:

The graph helps you measure it

6 0

3 years ago

In the past decades there have been intensive antismoking campaigns sponsored by both federal and private agencies. In one study

astra-53 [7]

Answer:

C. z = 2.05

Step-by-step explanation:

We have to calculate the test statistic for a test for the diference between proportions.

The sample 1 (year 1995), of size n1=4276 has a proportion of p1=0.384.

$p_1=X_1/n_1=1642/4276=0.384$

The sample 2 (year 2010), of size n2=3908 has a proportion of p2=0.3621.

$p_2=X_2/n_2=1415/3908=0.3621$

The difference between proportions is (p1-p2)=0.0219.

$p_d=p_1-p_2=0.384-0.3621=0.0219$

The pooled proportion, needed to calculate the standard error, is:

$p=\dfrac{X_1+X_2}{n_1+n_2}=\dfrac{1642+1415}{4276+3908}=\dfrac{3057}{8184}=0.3735$

The estimated standard error of the difference between means is computed using the formula:

$s_{p1-p2}=\sqrt{\dfrac{p(1-p)}{n_1}+\dfrac{p(1-p)}{n_2}}=\sqrt{\dfrac{0.3735*0.6265}{4276}+\dfrac{0.3735*0.6265}{3908}}\\\\\\s_{p1-p2}=\sqrt{0.00005+0.00006}=\sqrt{0.00011}=0.0107$

Then, we can calculate the z-statistic as:

$z=\dfrac{p_d-(\pi_1-\pi_2)}{s_{p1-p2}}=\dfrac{0.0219-0}{0.0107}=\dfrac{0.0219}{0.0107}=2.05$

z=2.05

4 0

3 years ago

Apply the following translation to the point Q (-5, -1):

xxTIMURxx [149]

Answer:

okkk

Step-by-step explanation:

4 0

2 years ago