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4 years ago

If the radius is 12 what’s the diameter

Mathematics

1 answer:

noname [10]4 years ago

7 0

Answer:

d=24 so the diameter is 24

Step-by-step explanation:

Let's solve your equation step-by-step.

d=(2)(12)

Step 1: Simplify both sides of the equation.

d=24

Answer:

d=24

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The length of segment EF is 8 units, the length of segment ED is 10 units, and the length of segment EA is 13.33 units. Find the

ivanzaharov [21]

Answer:

5.33 unit

Step-by-step explanation:

logically FA = EA - EF = 13.33-8 = 5.33 units

Since, E, F and A all lie on the same line EA . The information ED= units is redundant. Therefore we can say that FA= 5.33 unit

5 0

3 years ago

Select all the fractions that are greater than 1/2

skad [1K]

10/7 7/13 3/5 is probably some of the answer

7 0

3 years ago

What fraction of the possible sandwiches have turkey and ketchup

Tcecarenko [31]

Answer: 1/4

Step-by-step explanation:

From the letter a), we have 8 possible options. From these options, we have 2 that have turkey and ketchup (WTK and BTK), so the probability is the number of options we want over the total number of options:

Fraction of turkey and ketchup is = 2/8 = 1/4

4 0

3 years ago

Suppose that the speed at which cars go on the freeway is normally distributed with mean 68 mph and standard deviation 5 miles p

denis23 [38]

Answer:

A) $X \sim N(68 , 25)$

B) the probability that is traveling more than 70 mph is 0.3446

C) the probability that it is traveling between 65 and 75 mph is 0.6449

D) 90% of all cars travel at least 56.85 mph fast on the freeway

Step-by-step explanation:

The speed at which cars go on the freeway is normally distributed with mean 68 mph and standard deviation 5 miles per hour.

Mean = $\mu = 68 mph$

Standard deviation = $\sigma = 5 mph$

A) X ~ N( _____, _______ )

In general $X \sim N( \mu , \sigma^2)$

$\mu = 68 mph$

$\sigma = 5 mph$

$\sigma^2 = 5^2 = 25$

So, $X \sim N(68 , 25)$

B) If one car is randomly chosen, find the probability that is traveling more than 70 mph.i.e.P(X>70)

So, $Z = \frac{x-\mu}{\sigma}\\Z=\frac{70-68}{5}$

Z=0.4

Using Z table

P(Z>70)=1-P(Z<70)=1-0.6554=0.3446

Hence the probability that is traveling more than 70 mph is 0.3446

C) If one of the cars is randomly chosen, find the probability that it is traveling between 65 and 75 mph.

P(65<X<75)

$Z = \frac{x-\mu}{\sigma}$

AT x = 65

$Z=\frac{65-68}{5}$

Z=-0.6

AT x = 75

$Z=\frac{75-68}{5}$

Z=1.4

Using Z table

P(65<X<75)=P(-0.6<Z<1.4)=P(Z<1.4)-P(Z<-0.6)=0.9192-0.2743=0.6449

Hence the probability that it is traveling between 65 and 75 mph is 0.6449

D)90% of all cars travel at least how fast on the freeway?

Since we are supposed to find at least how fast on the freeway

So,P(X>x)=0.9

1-P(X<x)=0.9

1-0.9=P(X<x)

0.1=P(X<x)

Z value at 10% =-2.23

So, $Z=\frac{x-\mu}{\sigma}\\-2.23=\frac{x-68}{5}\\-2.23 \times 5 =x-68\\(-2.23 \times 5)+68=x$

56.85 = x

Hence 90% of all cars travel at least 56.85 mph fast on the freeway

8 0

3 years ago

a figure is translated by (x-5,y+7), then by (x+5,y-7). Without graphing, what is the final position of the figure?

Oduvanchick [21]

Without graphing, the final position of the figure that is translated by (x - 5, y + 7), and then by (x + 5, y - 7) ends up in the same position it was, before the translations.

Let’s check this example:

Think of point (1, 1). The point is translated to (-4, 8); and then it is moved back to point (1, 1). The x spot’s -5 and +5 cancel each other out and the same can be said for the y’s.

To add, a geometric transformation<span> that changes every point of a space by the same amount in a given direction or a figure is called a translation.</span>

8 0

3 years ago