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1 year ago

Find the area of each circle to the nearest tenth. Use 3.14

Mathematics

2 answers:

Oksi-84 [34.3K]1 year ago

8 0

Answer:

50.24

Step-by-step explanation:

Area formula: Pi x R^2 or Pi x R x R

3.14x4x4=50.24

<u><em>Can I get Brainlest pls</em></u>

svetlana [45]1 year ago

7 0

Area of Circle: $\pi r^{2}$

radius 'r' = 4ft (radius is half of diameter)
$\pi =3.14$

Area equals = 3.14 (4)^2 = 50.24 square feet = 50.2 square feet

Hope that helps!

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Open to find question (mathematics)

BigorU [14]

Answer:

its a ...............................

4 0

2 years ago

The area of rectangle ABCD is represented by the expression 2x2 – 13x + 21. The area of rectangle WXYZ is represented by the exp

umka21 [38]

Answer:

Step-by-step explanation:

2x²-13x+21+6x²+29x-5

=8x²+16x+16

5 0

2 years ago

g Bonus: Assume that among the general pediatric population, 7 children out of every 1000 have DIPG (Diffuse Intrinsic Pontine G

patriot [66]

Answer:

0.9586

Step-by-step explanation:

From the information given:

7 children out of every 1000 children suffer from DIPG

A screening test designed contains 98% sensitivity & 84% specificity.

Now, from above:

The probability that the children have DIPG is:

$\mathbf{P(positive) = P(positive \ | \ DIPG) \times P(DIPG) + P(positive \ | \ not \DIPG)\times P(not \ DIPG)}$ $= 0.98\imes( \dfrac{7}{1000}) + (1-0.84) \times (1 - \dfrac{7}{1000})$

= (0.98 × 0.007) + 0.16( 1 - 0.007)

= 0.16574

So, the probability of not having DIPG now is:

$P(not \ DIPG \ | \ positive) = \dfrac{ P(positive \ | \ not DIPG)\timesP(not \ DIPG)} { P(positive)}$

$=\dfrac{ (1-0.84)\times (1 - \dfrac{7}{1000}) }{ 0.16574}$

$=\dfrac{ 0.16 ( 1 - 0.007) }{0.16574}$

= 0.9586

8 0

2 years ago

Help it’s due in 10 mind

aleksley [76]

Define the population, decide on the sample size (aka what percentage of that population)

3 0

2 years ago

Dale currently has $599 in his savings account. Prior to getting paid, he had $230 in his savings account. How much was Dale’s p

nlexa [21]

Hi!

So really focus on the fact that he started at $230, and then added an amount of money which we'll call x, which made his total equal $599.

Take the parts I put in bold, and write the equation.
$230 + x = $599

Now we need to find x.

Whatever we do to the equation, we do it to both sides.
Our goal is to isolate x on one side.

Subtract 230 from both sides.
$230 - $230 + x = $599 - $230
x = $369

The answer is A. $230 + x = $599 x = $369

Hope this helps! :)
-Peredhel

8 0

2 years ago