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Ksenya-84 [330]
3 years ago
5

I need help with letter C, find the area

Mathematics
1 answer:
ElenaW [278]3 years ago
5 0

Answer:

x = 38

Step-by-step explanation:

Here, we can use the area formula A = 0.5(Bh) to solve for x.

In this case, A = 399, B = x, and h = 21

399 = \frac{21}{2} x\\x = \frac{2*399}{21} \\x = 38

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Help please someone
kenny6666 [7]

Answer: step by step explanation

it's just that you have to multiply the number under root and it's any number is square then you can take it out of root.

4 0
3 years ago
Match the type of graph with its description.
coldgirl [10]

Answer:

1) Compares data that are in categories

2) Organises data into 4 groups of equal sizes and is often used to compare two sets of data.

3) Used to see trends in data.

4) Shows changes over time.

5) Shows the frequency of data using equal intervals with no space between the bars.

Step-by-step explanation:

1) Bar graph is used to compare data that are in categories

2) Box and whisker plot is used to organise data into 4 groups of equal size.

3) Line graph is basically used to see different trends.

4) Scatter plot is used to show changes that have occurred over time

5) Histogram is used to show the frequency of data using equal intervals with no space between the bars.

4 0
3 years ago
Find the equations of the tangents to the curve x=9t2+3, y=6t3+3 that pass through the point (12,9).
Xelga [282]

Answer:

The equation will be "y=x-3".

Step-by-step explanation:

Given:

Points (12, 9) = (x, y)

⇒ x=9t^2+3

then,

 \frac{dy}{dt}=18t

or,

⇒ y=6t^3+3

then,

 \frac{dy}{dt}=18t^2

⇒ \frac{dy}{dx}=\frac{18t^2}{18t}

        =t

By using the point slope form.

The equation of tangent will be:

⇒ y-9=1(x-12)

   y-9=x-12

          y=x-12+9

          y=x-3

4 0
3 years ago
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3 years ago
1. The radius of a circle is 26 yards. Find the diameter
svetlana [45]

Answer:

52 yards

Step-by-step explanation:

The radius is half of the diameter so multiply 26 by 2 to get the diameter.

3 0
3 years ago
Read 2 more answers
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