All categories

4 years ago

Please help and explain if you can

Mathematics

2 answers:

Keith_Richards [23]4 years ago

7 0

Answer:

I think the answer is 100, but correct me if im wrong

svp [43]4 years ago

3 0

X would be 40 because the angle is inscribed meaning that it’s half the arc since we half 100 and we have half a circle.That means we need the other arc BC to be 80.
Z would be 50 since it’s half the arc which is 100.

You might be interested in

Review the two box and whisker plots:

Ber [7]

Answer:

Male students have a greater median.

Step-by-step explanation:

The median is the bold line (look at the attached image)

The male's median is greater than 60.

The female's median is less than 60.

Hope that helps!

7 0

3 years ago

Don works in home construction. He determined that the function t(A)=144A/9.252 gives the total number of 9 in. tiles needed to

Oksanka [162]

Answer:

6,226 tiles of 9 in are needed to cover an area of 400 square feet

Step-by-step explanation:

Let

A -----> an area in square feet

t(A) ---> the total number of 9 in. tiles needed

we have

$t(A)=\frac{144A}{9.252}$

For A=400 ft^2

substitute in the equation and solve for t

$t(400)=\frac{144(400)}{9.252}$

$t(400)=6,226\ tiles$

That means -----> 6,226 tiles of 9 in are needed to cover an area of 400 square feet

6 0

3 years ago

URGENT 23-28 with work

dybincka [34]

-5 This is the answer with the work
23
-28
-----
-5

7 0

3 years ago

The two dot plots below compare the forearm lengths of two groups of schoolchildren:

Angelina_Jolie [31]

Answer:

Group A, because seven children have a forearm length longer than 10 inches

Step-by-step explanation:

Create the dot plots based on the given information (please see attached images).

Group A = blue dots

Group B = red dots

From inspection of the attached dot plots, we can see that Group A appears to have the longer average forearm length. This is because 7 children have a forearm length of longer than 10 inches.

To calculate the average forearm length, sum all data values and divide by the total number of data values.

$\textsf{Average of Group A}=\dfrac{ 3 \times 10 + 4 \times 11 + 3 \times 12}{10}=11$