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3 years ago

If the figure is reflected over the x-axis, what are the coordinates of point R?

Mathematics

1 answer:

12345 [234]3 years ago

4 0

Answer:

R' (3,-3)

Step-by-step explanation:

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30. If the level of significance is 0.05 and the p-value is 0.04, what conclusion can you draw?

Inessa [10]

Answer:

Reject null hypothesis

Step-by-step explanation:

Because our p-value of 0.04 is less than the level of significance of 0.05, then we reject the null hypothesis that there's no difference between the means and conclude that a significant difference does exist

4 0

2 years ago

A sail in the form of a right triangle the angle at its lower edge is 55 what is the size of the angle formed at the top of the

Mars2501 [29]

Answer:

The size of the angle formed at the top of the sail is 35.

Step-by-step explanation:

We know that the sum of all angles inside a triangle must be 180. This is a rule.

So we know that a right triangle is called like that because one angle is a 90-degree angle.

Then we have that:

180 = right angle + lower edge angle + angle top of the sail

180 = 90 + 55 + angle top of the sail

Solving for 'angle top of the sail' we have:

angle top of the sail = 180 - 90 - 55 = 35

The size of the angle formed at the top of the sail is 35.

5 0

3 years ago

What is the solution of log2x + 6 144 = 2?

VladimirAG [237]

Answer:

x=-3

Step-by-step explanation:

2x+6144=2

2x=2-6144

2x=-6142

x=-6142÷2

x=-3071

8 0

4 years ago

True or false? in a two column proof, the left cloumn contains a series of deductions

Vera_Pavlovna [14]

Answer:

True.

Step-by-step explanation:

The left side of a "two column proof" is used for your "work" and the right side justifies your statements and is your "proof."

3 0

3 years ago

Car A and car B are traveling at different speeds. Car A can travel 175 miles in the same time it takes car B to travel 125 mile

slega [8]

Answer:

The speed of car B is 50 mile per hour

Step-by-step explanation:

Given as :

The Distance travel by car A = 175 miles

The Distance travel by car B = 125 miles

The Time taken by both car A and B is same = T hours

Let The speed of car B = S mile per hour

So, The speed of car A = ( S + 20 ) mile per hour

Now, Time = $\frac{Distance}{Speed}$

So , For Car A ,

T = $\frac{175}{(S + 20 )}$

For Car B ,

T = $\frac{125}{(S}$

So, $\frac{175}{(S + 20 )}$ = $\frac{125}{(S}$

Or, 175 × S = 125 × ( S + 20 )

Or, 175 S - 125 S = 125 × 20

Or, 50 S = 2500

∴ S = $\frac{2500}{(50}$

I.e S = 50 mph

And S + 20 = 50 + 20 = 70 mph

The speed of car A = 70 mph

The speed of car B = 50 mph

Hence The speed of car B is 50 mile per hour Answer

8 0

3 years ago