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3 years ago

Find the radius or diameter of each circle with the given diameter

Mathematics

2 answers:

Ronch [10]3 years ago

5 0

I think it’s 26centmeters

solmaris [256]3 years ago

3 0

Answer:

26cm

Step-by-step explanation:

Radius is half of diameter

In order to get the diameter of the circle with a radius of 1e cm you multiply it by 2

13*2=26cm

So, with that being said, your diameter is 26cm

You might be interested in

If a procedure meets all of the conditions of a binomial distribution except the number of trials is not fixed, then the geomet

Tanya [424]

Answer:

The probability that the first subject to be a universal blood donor is the seventh person selected is 0.0511

Step-by-step explanation:

Let's start defining the random variable X.

X : ''The first success is on the xth trial''

X can be modeled as a geometric random variable with the following probability function :

$P(X=x)=p(1-p)^{x-1}$

Where $P(X=x)$ is the probability of the random variable X to assumes the value ''x''.

The variable p is the success probability.

For this exercise, we define a success as someone randomly selected is a universal donor and that probability is $p=0.09$

We are looking for : $P(X=7)$

The probability function is :

$P(X=x)=(0.09)(0.91)^{x-1}$

$P(X=7)=(0.09)(0.91)^{7-1}=(0.09)(0.91)^{6}=0.0511$

6 0

4 years ago

How much of a 60% acid solution must be mixed with 50 gallons of a 24% acid solution to obtain a solution that is 50% acid?

tiny-mole [99]

My teacher taught me a simple equation for these types of problems:
(percent of solution × amount of solution) + (percent of solution × amount of solution) = (percent of solution × total amount of solution)
in simple terms: %amount + %amount = %total amount
We know don't know how much gallons of 60% solution we need so it will be represented as x. We dont know the total amount either so it would have to be both solutions added together so 50 + x. Now lets solve:
(0.60)(x) + (0.24)(50) = (0.50)(50 + x) simplify/ distribute
0.6x + 12 = 25 +0.5x get all xs on one side and numbers on other
0.1x + 12 = 25
0.1x = 13 divide both sides by 0.1 to find x
x = 130
You need 130 gallons of 60% solution.

8 0

3 years ago

Read 2 more answers

You are conducting a study to see if the proportion of men over the age of 50 who regularly have their prostate examined is sign

Furkat [3]

Answer:

1. Yes, the sample data provides convincing evidence to support the claim that the proportion of men over the age of 50 who regularly have their prostate examined is significantly less than 0.37

2. The correct hypotheses are;

The null hypothesis is H₀: p ≥ p₀

The alternative hypothesis is Hₐ: p < p₀

Step-by-step explanation:

given

The null hypothesis is H₀: p ≥ p₀ where p₀ = 0.37

The alternative hypothesis is Hₐ: p < p₀

The formula for the z test is presented as follows;

$z=\dfrac{\hat{p}-p_0}{\sqrt{\dfrac{p_0 (1 - p_0)}{n}}}$

Where:

$\hat p$ = Sample proportion = 206/780 = 0.264

p₀ = Population proportion = 0.37

n = Sample size = 780

α = Significance level = 10% = 0.01

Plugging in the values, we have;

$z=\dfrac{0.264-0.37}{\sqrt{\dfrac{0.37 (1 - 0.37)}{780}}} = -6.13$

From the the z relation/computation, we have the p value = 0.000000000451

Since the p value which is 0.000000000451 is less than α, which is 0.01 we reject the null hypothesis and we fail to reject the alternative hypothesis, that is there is sufficient statistical evidence to suggest that the proportion of men over the age of 50 who regularly have their prostate examined is significantly less than 0.37.

4 0

3 years ago

How does f(x) = 5x change over the interval from x = 7 to x = 8?

hichkok12 [17]

Answer:

the slope is 5

Step-by-step explanation:

f(x) = 5x

f(8) = 5(8) = 40 (8,40)

f(7) = 5*7 = 35 ( 7,35)

the slope is 5

4 0

3 years ago

Read 2 more answers

Identify the amount, base and present in this problem.<br> 2.4 is 60% of what number

creativ13 [48]

Answer:

your answer is the first one

Step-by-step explanation:

4 0

3 years ago