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3 years ago

10

The measure of each angle of an equiangular triangle is

2 answers:

MrRissso [65]3 years ago

7 0

C. This is because if it is an equiangular triangle this means that all the angles have the same angle. You know that all the angles in a triangle add up to 180 degrees? You just divided 180 by 3 as there are three angles in a triangle. Which gives you 60 degrees.

liberstina [14]3 years ago

7 0

equiangular triangle ⇒ All angles are equal in measurement

180 ÷ 3 = 60°

Answer: Each angle is 60° (C)

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Explain how to find the x-intercept of the graph of y=-8x-12.

jeyben [28]

The x-intercept is when y=0, so we plug that in our equation,
$0=-8x-12$ . +12 on both sides to get $12=-8x$ . Divide by -8 to get $x=-1.5$

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3 years ago

A researcher wants to test if the mean annual salary of all lawyers in a city is different from $110,000. A random sample of 50

KiRa [710]

Solution :

This is the two tailed test.

The null hypothesis and the alternate hypothesis is as :

Null hypothesis is $H_0:\mu=110000$

Alternate hypothesis is $H_0:\mu \neq110000$

$\overline x = 112000, \ \mu = 110000, \sigma = 16100, n = 50, \alpha = 0.02$

Therefore, the critical value of z is :

$z_{\alpha} = -2.33 \text{ and}\ 2.33$

Now the test statics is :

$z=\frac{\frac{(\overline x - \mu)}{\sigma}}{\sqrt n}$

$z=\frac{\frac{(112000-110000)}{16100}}{\sqrt {50}}$

$z=0.87$

The test statics is 0.878

We see that it is a right tailed test.

$$P(z > 0.878)=1-P(z$

$P- \text{value}= \ 2 \times 0.19$

= 0.3800

Thus , P-value > α

So we fail to reject the null hypothesis.

5 0

3 years ago

What is the solution to the equation 1/4 × +2= 5/8x-5?

egoroff_w [7]

Step 1. Divide by the numbers 0.25 (1 divided by 4):

0.25 x +2=5 divided by 8x-5

Step 2. Divide the by the numbers 0.625 (5 divided by 8):

0.25 x +2=0.625x-5

Answer: 0.25 + 2= 2.25

Please correct me if I'm wrong, hope I could help! :)

5 0

3 years ago

M=3/8,, y-intercept (0, 7)

anygoal [31]

The equation for this will be y=3/8x+7.

6 0

3 years ago

Construct a quadrilateral KLMN in which KL=LM=KM=5cm,KM=8cm and LN =6 cm

Hunter-Best [27]

Answer:

Step-by-step explanation:

There are 2 possibilities.

1) Put a point L.

2) draw the circle of center L and radius 5 :C1

3) Put on point M on this circle

4) Draw the circle of center m and radius 8:C2

5) C1 and C2 intersect in K

5 0

3 years ago