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3 years ago

Which statement is true?

Mathematics

2 answers:

quester [9]3 years ago

5 0

<h2>Answer:</h2>

The correct statement among the given statement is:

a. A ten degree angle is congruent to a 10 degree angle.

<h2>Step-by-step explanation:</h2>

<u>Congruent angles--</u>

Two angles are said to be congruent if both have the same angle measure.

They may be of any measure.

They may have any orientation on the plane.

Also, the construction of such a angle is simple with the help of a compass and a straight edge.

Now, if we consider two angles such that the measure of each angle is 60 degree.

Then they add up to 60+60=120 degrees.

and hence options: b and d are incorrect.

BlackZzzverrR [31]3 years ago

3 0

For this problem, the answer is choice A.

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I have this question in Geometry that I need help with, can you help me solve it?

Degger [83]

Answer(6,1)

Step-by-step explanation:

you need to use the midpoint formula

6 0

3 years ago

The lengths of human pregnancies are normally distributed with a mean of 268 day & a standard deviation of 15 days. What is

Andrews [41]

The probability that a pregnancy last at least 300 days is 0.01659

Step-by-step explanation:

The formula of z-score is z = (x - μ)/σ, where

μ is the mean
σ is the standard deviation
x is the score

The lengths of human pregnancies are normally distributed with a

mean of 268 day & a standard deviation of 15 days

∴ μ = 268 days

∴ σ = 15 days

We need to find the probability that a pregnancy last at least 300 days

∵ At least means greater than or equal

∴ x ≥ 300 days

For probability that x ≥ 300 find the z-score and use the normal

distribution table to find the area to the right of the z-score

∵ z = (x - μ)/σ

∴ $z=\frac{300-268}{15}$

∴ <em>z</em> = 2.13

By using the normal distribution table of z-score

∵ The area (to the left of z-score) corresponding to z-score of 2.13

is 0.98341

∵ We need the area to the right of z-score

∴ P(x ≥ 300) = 1 - 0.98341

∴ P(x ≥ 300) = 0.01659

The probability that a pregnancy last at least 300 days is 0.01659

Learn more:

You can learn more about probability in brainly.com/question/9178881

#LearnwithBrainly

8 0

3 years ago

Two baskets contain snacks. The basket contain 12 bags of peanuts, of which 5 are reduced sodium and 8 granola bars, of which 2

Ghella [55]

There are a total of 20 snacks in each bag. We consider the probability of picking a bag of peanuts with reduced sodium and then a granola bar with reduced sodium, then multiply by 2 (because we could pick them in the other order).

There is a 5/20 chance of picking a sodium-reduced bag of peanuts first, and a 2/20 chance of picking a sodium-reduced granola bar next. Thus, the chance of picking them together in that order is 5/20*2/20=10/400, or 1/40. Because we could pick the snacks in either order, we multiply by two, for a result of a 1/20 probability.

8 0

4 years ago

Mr jones is losing 20 percent of his hair each year if he currently has 1546 hairs on about how many hair will he have left afte

dedylja [7]

I seemed to have forgot the formula for how to solve such a question so what I did was take my trust calculator, place the number he'd start with each year, multiply it by 0.2 or the 20%, and subtract that from the number he started with to get how many hairs he would start with in the next year. Then rinse-repeat until I got to 10 years.

Example:

1st year would be 1546 - (1546 x 0.2) = 1546 - 309.2 = 1236.8 hairs to start the 2nd year.

At the end of year 10, my calculation had Mr. Jones left with 166.000486 or ≈166 hairs left on his head. I'd suggest Mr. Jones invested in a women's razor; I've heard their blades are better for shaving yourself bald.

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3 years ago

The point (4,5) is translated two units left and eight units down. What is the y-coordinate of the image?

Alexeev081 [22]

Answer:

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Step-by-step explanation:

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4 years ago