All categories

3 years ago

PLEASE HELP ME ANSWER THIS OR SHOO ANSWER IT FOR ME :)

Mathematics

2 answers:

Tanya [424]3 years ago

7 0

Answer:

The populations is all of the beavers at the park and the sample is the 10 that he randomly chose. A population means the total amount, so it wouldn’t make sense that it would be 10. A sample is a portion of the entire population, so 10 would be the right answer since it is only a portion of the entire population. 31 does not work because it is the data that is found using the sample of 10 beavers.

Step-by-step explanation:

muminat3 years ago

3 0

You might be interested in

A restaurant serves only tacos and enchiladas. If 60% of everyone who ate at the restaurant on a certain day ordered tacos, what

grandymaker [24]

Answer:

i. 70%

ii. 70%

Step-by-step explanation:

Since in the question, it is given that 60% of everyone is ordered tacos so 40% of everyone is ordered enchiladas

i. Now if half ordered tacos that means out of these 30 orders enchiladas.

since 30 ordered tacos that means 70% ordered enchiladas

ii. Now for 3 by 4 we have to assume the number of people who ordered only enchiladas be x

So,

For both, it would be 0.75 x

And, the number of people who did not order is 40 as 60 tacos are ordered by people

So, the percentage is

= 40 × 0.75 + 40

= 30 + 40

= 70%

6 0

2 years ago

A line of best fit predicts that when x equals 30, y will equal 34.215, but y actually equals 32. What is the residual in this c

Katarina [22]

Answer: A. - 2.215

Step-by-step explanation:

• A residual is the difference between the actual value and the predicted value in a regression model. It represents the vertical distance from the actual point to the point on the regression line.

$\text{Residual=Actual value of y -predicted value of y}\\\\\Rightarrow\text{Residual}=32-34.215\\\\\Rightarrow\text{Residual}=-2.215$

Hence, the residual in this case = -2.215

4 0

3 years ago

Helppppppppppppppppppppppp

harina [27]

(-5, 12). Cosecant is the reciprocal of sine. Since csc theta =13/12, sin theta=12/13. We can narrow down to two angles, one in first quadrant and one in second quadrant. We are also given sec theta=-13/5, so cos theta=-5/13. Thus the angle is in the second quadrant. tan theta=1/cot theta=-12/5, so point (-5, 12) is on the ray.

8 0

2 years ago

A student writes an incorrect step while checking if the sum of the measures of the two remote interior angles of triangle ABC b

andrew-mc [135]

Answer:

Step-by-step explanation:

First, alternate interior and alternate exterior angles and corresponding require a transversal through two parallel lines. or in other words two parallel lines with a non parallel line going through the both of them. We don't have that here so none of those count here.

Step 2 is the only one that mentions them so that's wrong. The two options regarding step 2, one mentions alternate exterior angles, so that's incorrect, which means the last option is the right answer.

To logic it out let's go choice by choice.

Measure of three angles of a triangle is 180, so that's correct

Alternate interior angles are the same, so saying the difference of two angles equals 90 degrees doesn't make sense with alternate interior angles. Also, the relationship is untrue. So doubly wrong.

the sum of the three angles of a triangle equals 180 and the sum of two angles that when put together make a straight lineis also 180, so this is right, just with the wrong step beforehand.

Fourth step is just right.

So definitely see step 2 is the problem. So let's look at the two replacement options.

First choice for step two says angle o + angle p does equal 180 degrees, which is true, but they are not alternate exterior angles. So only half as wrong. If you don't understand how they look you should do a quick search for alternate angles and see what alternate exterior and interior angles look like. And corresponding angles.

Second choice for step 2 gets the 180 degrees right AND givs the reason that they are supplementary angles. The definition of supplementary angles is that they add up to 180, or make a straight line, so also true.

Also we should check and make sure step 3 follows and makes sense. Basically it says these three angles equal 180 and these two angles equal 180 so these two angles must equal these three angles, which makes sense since they equal the same number. So check.

Let me know if Something I said didn't make sense. Also here is a small guide of angles for the picture I uploaded with this.

Angles A and G are Alternate Exterior

D and F are Alternate Exterior

B and H are Alternate INTERIOR

E and C are Alternate Interior

A and E are Corresponding

B and F are corresponding

C and G are corresponding

D and H are corresponding

In all of these relationships it means the two angles are equal, and they require a transversal. Let me know if you need further explanation let me know.

6 0

3 years ago

2:4 and 5:6 equivalent?

lys-0071 [83]

Well, no, 2:4 and 5:6 are not equivalent because let’s say if we drew 2:4 and 5:6 as a pizza, then 2:4 is 50% while 5:6 is 83%.

7 0

2 years ago