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3 years ago

Which diagram represents the postulate that states exactly one line exists between any two points?

Mathematics

2 answers:

Vitek1552 [10]3 years ago

7 0

Answer:

The diagram is attached with this answer

Step-by-step explanation:

In the diagram there are two points, point P and point Q. It is impossible to have more than one line between these points, so exactly one line exists between them.

likoan [24]3 years ago

6 0

Answer:

Check attachment for the diagram

Step-by-step explanation:

Given two points A and B in the diagram attached, we see that exactly one line exists between these points.

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A triangle has vertices X(2, 1), Y(5, 4), and Z(5, 1). What is the area of the triangle?

pochemuha

Answer:

Step-by-step explanation:

They gave you an easy triangle. You can tell by the coordinates that X and Z are horizontally aligned, and Y and Z are vertically aligned, so Z is a right angle.

Area = 0.5(XZ)(YZ) = 0.5(3)(3) = 4.5 square units.

3 0

2 years ago

Is the mean age at which American children learn to walk less than 15 months? A study of 40 American children found a mean walki

Sonbull [250]

Answer:

We define the random variable X as the walking age and we are interested if American children learn to walk less than 15 months so then that would be the alternative hypothesis and the complement would be the null hypothesis.

Null hypothesis: $\mu \geq 15$

Alternative hypothesis: $\mu$

And for this case the best answer would be:

H 0 : μ ≥ 15 vs. Ha : μ < 15

Step-by-step explanation:

Null hypothesis: $\mu \geq 15$

Alternative hypothesis: $\mu$

And for this case the best answer would be:

H 0 : μ ≥ 15 vs. Ha : μ < 15

And the data given from the sample is:

$\bar X = 13.2$ represent the sample mean

$\sigma$ represent the population deviation

$n = 40$ represent the sample size

And the statistic would be given by:

$z = \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}$

8 0

3 years ago

Im timed make it quick

erica [24]

Answer:

i think its a

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

What is 6.3-2(1.5c+4.1)

ASHA 777 [7]

$Expand\;-2\left(1.5c+4.1\right)$
$\mathrm{Distribute\:parentheses\:using}: \:a\left(b+c\right)=ab+ac$
$\;a=-2,\:b=1.5c,\:c=4.1$

$Simplify\;-2\cdot \:1.5c-2\cdot \:4.1 \ \textgreater \ \mathrm{Multiply\:the\:numbers:}\:2\cdot \:1.5=3$
$-3c-2\cdot \:4.1$

$\mathrm{Multiply\:the\:numbers:}\:2\cdot \:4.1=8.2 \ \textgreater \ -3c-8.2 \ \textgreater \ 6.3-3c-8.2$

$\mathrm{Subtract\:the\:numbers:}\:6.3-8.2=-1.9 \ \textgreater \ -3c-1.9$

Hope this helps!

7 0

2 years ago

Read 2 more answers

The product of a number and twenty more than that number.

harina [27]

Answer: 20+35=55+20=75

$x^{2} x^{2} x^{2} x^{2} x^{2} x^{2} x^{2} x^{2} x^{2} x^{2}$

Step-by-step explanation:

4 0

2 years ago