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3 years ago

A circle has an area of 50 square meters what is the diameter

Mathematics

2 answers:

topjm [15]3 years ago

7 0

Area = πr²
50 = πr²
r = √50/π

so diameter = 2√50/π
which is = 7.98m to 3sf

Serjik [45]3 years ago

5 0

<span>d+7.98 meters

This the answer

</span>

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At camp last summer, the ratio of boys to girls was 5:4. If there was a total of 90 campers, how many girl campers are there? ex

LekaFEV [45]

Answer:

40 girls

Step-by-step explanation:

if you multiply 5 times 10, then you have to multiply the other side by 10 too. So 5 times 10 equals 50, and 4 times 10 equals 40.

40+50+=90.

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2 years ago

Find the value of annuity if the periodic deposit is $250 at 5% compounded quarterly for 10 years

mylen [45]

Answer:

The value of annuity is $P_v = \$ 7929.9$

Step-by-step explanation:

From the question we are told that

The periodic payment is $P = \$ 250$

The interest rate is $r = 5\% = 0.05$

Frequency at which it occurs in a year is n = 4 (quarterly )

The number of years is $t = 10 \ years$

The value of the annuity is mathematically represented as

$P_v = P * [1 - (1 + \frac{r}{n} )^{-t * n} ] * [\frac{(1 + \frac{r}{n} )}{ \frac{r}{n} } ]$ (reference EDUCBA website)

substituting values

$P_v = 250 * [1 - (1 + \frac{0.05}{4} )^{-10 * 4} ] * [\frac{(1 + \frac{0.05}{4} )}{ \frac{0.08}{4} } ]$

$P_v = 250 * [1 - (1.0125 )^{-40} ] * [\frac{(1.0125 )}{0.0125} ]$

$P_v = 250 * [0.3916 ] * [\frac{(1.0125)}{0.0125} ]$

$P_v = \$ 7929.9$

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2 years ago

Is number 2 a x or y intercept

balu736 [363]

Hello there!

Number 2 certainly isn't an x or y intercept since it isn't meeting with any axis, however, it is the vertex of the parabola as shown in the graph.

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2 years ago

Help with this question, ASAP!!

allochka39001 [22]

Answer:

The answer to your question is the third option

Step-by-step explanation:

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0.023(2)³ + 0.4(2)² - 2.1(2) + 8.3

0.023(8) + 0.4(4) - 2.1(2) + 8.3

0.184 + 1.6 - 4.2 + 8.3

10.084 - 4.2

5.884

b) 0.023(4)³ + 0.4(4)² - 2.1(4) + 8.3

0.023(64) + 0.4(16) - 8.4 + 8.3

1.472 + 6.4 - 8.4 + 8.3

16.172 - 8.4

7.772

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3 years ago

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Ray is buying some ginger roots to brew some fresh ginger ale. The price of the ginger roots is G, and Ray has a coupon for 10%

Phantasy [73]

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2 years ago