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xxTIMURxx [149]
3 years ago
8

I need help with this geometry question.

Mathematics
1 answer:
sashaice [31]3 years ago
3 0

Answer:

Step-by-step explanation:

a). There are 8 points in the figure attached.

b). There are 9 lines in the given figure.

c). There are 5 planes in the figure attached.

d). Three collinear points are D,G and F.

e).  Four co-planar points are G, F, H and C.

f). Intersection of planes ABC and ABE is the common line AB.

g). Intersection of planes BCH and DEF is the common line EF.

h). Intersection of AD and DF is a point D.

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4.) Laura works in a furniture store. She earns $160 a week plus 6% of all sales over
Paha777 [63]

Answer:

$724

Step-by-step explanation:

We know she makes the 6% of the 9,400, so we need to find how much that is.

To do this we calculate the following equation: 9,400 * 0.06

When we solve this, we get 564. From there we add her weekly salary (160) and get 724.

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3 years ago
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Write an equation of a line that passes through (3,0) and is parallel to line y=2x+5
weeeeeb [17]

Answer:

y = 2x - 6

Step-by-step explanation:

(3,0)

y = 2x + 5

m = 2

y - y₁ = m(x - x₁)

y - (0) = (2)(x - (3))

y = 2(x - 3)

y = 2x - 6

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3 years ago
A swimming pool is 50 m long and 25 m wide. It is 1.2 m deep at shallow end and 2 m deep at the other end.
tangare [24]

Answer:

the answer is in picture

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3 years ago
Find the elapsed time between 8:25 am and 10:52 am
Levart [38]
2 hours and 27 minutes
7 0
3 years ago
In a representative sample of 1000 adult Americans, only 400 could name at least one justice who is currently serving on the U.S
lys-0071 [83]

Answer:

1) z = -6.32

2) p-value = 0.001 × 10^(-2)

3) we will reject the null hypothesis and conclude that there is enough evidence to support the claim that fewer than half of adult Americans can name at least one justice currently serving on the Supreme Court

Step-by-step explanation:

We are told that In a representative sample of 1000 adult Americans, only 400 could name at least one justice.

Thus:

Sample proportion; p^ = 400/1000 = 0.4

Sample size: n = 1000

We want to find if there is convincing evidence to support the claim that fewer than half of adult Americans can name at least one justice.

Thus, the hypothesis is defined as;

Null hypothesis:H0: p ≥ 0.5

Alternative hypothesis: Ha < 0.5

Formula for the test statistic is;

z = (p^ - p)/√(p(1 - p)/n)

Plugging in the relevant values;

z = (0.4 - 0.5)/√(0.5(1 - 0.5)/1000)

z = -6.32

From online p-value from z-score calculator attached, using z = -6.32; significance level of 0.01; one tailed hypothesis;

We have:

p-value = 0.00001 = 0.001 × 10^(-2)

The p-value is less than the significance level and so we will reject the null hypothesis and conclude that there is enough evidence to support the claim that fewer than half of adult Americans can name at least one justice currently serving on the Supreme Court

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2 years ago
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