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Archy [21]
2 years ago
10

The radius of the circle is 7 cm. What is the area of the circle in cm2? Leave answer in terms of pi

Mathematics
1 answer:
mash [69]2 years ago
7 0

Answer:

49Pi cm^2

Step-by-step explanation:

Area of a circle = Pi r^2

Radius r = 7

Area = Pi x 7^2

= Pi x 7 x 7

= 49Pi cm^2

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Find the perimeter of the figure
SashulF [63]
To solve this, find the rest of the sides:

The other sides are:

1. 24 - 8 = 16
2. 23 - 9 = 14

Next, just add it up:

24 + 9 + 16 + 14 + 8 + 23 = 33 + 30 + 31 = 94
3 0
3 years ago
Which lines in the graph have a slope greater than 1 but less than 2?
lapo4ka [179]

Answer:

Lines 3 and 4

Step-by-step explanation:

Let's examine the slope of each of the given lines to have the exact value and be able to answer the question. We use the definition of: slope=\frac{rise}{run}

Line 1: slope=\frac{rise}{run}=\frac{6}{2} = 3

Line 2: slope=\frac{rise}{run}=\frac{6}{3} = 2

Line 3: slope=\frac{rise}{run}=\frac{6}{4} = 1.5

Line 4: slope=\frac{rise}{run}=\frac{6}{5} = 1.2

Line 5: slope=\frac{rise}{run}=\frac{6}{6} = 1

Therefore the lines that have slope strictly greater than 1 and less than 2 are:

Lines 3 and 4

3 0
3 years ago
Read 2 more answers
1. y = x2 + 8x + 15<br> Find the zeros of the function by rewriting the function in intercept form
lubasha [3.4K]

The zeros of given function y=x^{2}+8 x+15 is – 5 and – 3

<u>Solution:</u>

\text { Given, equation is } y=x^{2}+8 x+15

We have to find the zeros of the function by rewriting the function in intercept form.

By using intercept form, we can put value of y as  to obtain zeros of function

We know that, intercept form of above equation is x^{2}+8 x+15=0

\text { Splitting } 8 x \text { as }(5+3) x \text { and } 15 \text { as } 5 \times 3

\begin{array}{l}{\rightarrow x^{2}+(5+3) x+5 \times 3=0} \\\\ {\rightarrow x^{2}+5 x+3 x+5 \times 3=0}\end{array}

Taking “x” as common from first two terms and “3” as common from last two terms

x (x + 5) + 3(x + 5) = 0

(x + 5)(x + 3) = 0

Equating to 0 we get,

x + 5 = 0 or x + 3 = 0

x = - 5 or – 3

Hence, the zeroes of the given function are – 5 and – 3

5 0
3 years ago
1. Mark Ford deposits $11,800 into Role Bank, which pays 8% interest that
borishaifa [10]

Answer:

The amount after 4 years = $ 16198.87

Step-by-step explanation:

Points to remember

Compound interest

A = P[1 + R/n]^nt

Were A - Amount

P - Principle

R - Rate of interest

t - Number of years

n - Number of times compounded

<u>To find the amount</u>

Here P = $11,800, R = 8% = 0.08, t = 4 years and n = 4 times

A = P[1 + R/n]^nt

 =  11800[1 + 0.08/4]^(4 * 4)

 = 16198.87

Therefore amount after 4 years = $ 16198.87

5 0
3 years ago
What is the measure of Zx?
alexgriva [62]

Answer:

66

Step-by-step explanation:

180 - 105 = 75

75 + 39 = 114

180 - 114 = 66

8 0
3 years ago
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