All categories

3 years ago

All equilateral triangles are isosceles? A. True B. False

Mathematics

2 answers:

mojhsa [17]3 years ago

8 0

Answer:

Yes, all equilateral triangles are also isosceles.

Step-by-step explanation:

An isosceles triangle has at least two sides of the triangle of equal measure and the two base angles are equal in degree measure. By definition all sides of an equilateral triangle are equal in length and all angles are equal in degree measure.

Using this info, I will say yes, all equilateral triangles are also isosceles. The correct answer would be A.) True.

Maru [420]3 years ago

7 0

Answer:

A. true

Step-by-step explanation:

You might be interested in

Someone pls help me with this

frosja888 [35]

Answer:

4.25 wewewewewewewewewewewewewewewewewewewewewewewewewewewewewewewewewewewewewewewe

Step-by-step explanation:

3 0

2 years ago

A public health official is planning for the supplyof influenza vaccine needed for the upcoming flu season. She wants to estimat

Marizza181 [45]

Answer:

$n=\frac{0.5(1-0.5)}{(\frac{0.04}{1.64})^2}=420.25$

And rounded up we have that n=421

Step-by-step explanation:

We know that the sample proportion have the following distribution:

$\hat p \sim N(p,\sqrt{\frac{p(1-p)}{n}})$

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 90% of confidence, our significance level would be given by $\alpha=1-0.90=0.1$ and $\alpha/2 =0.05$ . And the critical value would be given by:

$z_{\alpha/2}=-1.64, z_{1-\alpha/2}=1.64$

The margin of error for the proportion interval is given by this formula:

$ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}$ (a)

And on this case we have that $ME =\pm 0.04$ and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}$ (b)

We assume that a prior estimation for p would be $\hat p =0.5$ since we don't have any other info provided. And replacing into equation (b) the values from part a we got:

$n=\frac{0.5(1-0.5)}{(\frac{0.04}{1.64})^2}=420.25$

And rounded up we have that n=421

5 0

3 years ago

True or False: The weight of an object varies with the amount of gravity that pulls on it.

Lisa [10]

Answer:

True

4 0

2 years ago

Read 2 more answers

Why was an attack against Vicksburg by river just not possible for Union forces?

Vsevolod [243]

<span>Because the town was built above sheer cliffs that were heavily defended by artillery.</span>

8 0

3 years ago

Which function does this graph represent: y=x-4;<br> y=-x+4;y=4x-1;y=-4x+1

allochka39001 [22]

The graph represents y=-4x-1

If you notice the line, it goes past the -1 on the y axis which indicates that the y intercept is -1 since that was the only choice which displayed this, we know that our answer is y=-4x-1

5 0

3 years ago