The diameter of a sphere is 42 cm . find the surface area to the nearest tenth.

258.5 miles in 5.5 hours. also please show your work on paper or on here in a understandable way

Y_Kistochka [10]

Answer:

47 miles per hour

Step-by-step explanation:

so you have to do distance/time and divide the numbers.

so put 258.5 at the top because it's the distance then you put the time under it so 5.5 hour and divide that and you get 47 mph

5 0

3 years ago

Palindrome numbers are numbers that read the same foward or backward. Here are some palindrome numbers: 11, 121, 75257, and 1234

KatRina [158]

Answer:

99.

Step-by-step explanation:

A palindrome number is one that can be read in the same way both from the front and from the back. A clear example is the number 242, which starts and ends in the same way from the front or back.

Between 10 and 100, there are 9 palindromes, from 11 to 99. In turn, between 100 and 200, 200 and 300 and so on, each hundred has within it 10 palindromes (101, 111, 121, 131, 141 , 151, 161, 171, 181 and 191, for example).

Therefore, considering the 9 hundreds between 100 and 1000, there will be 90 palindromes, which added to the 9 between 10 and 100 give a total of 99 palindromes.

6 0

3 years ago

PLEASEHELP! ANSWER CHOICES: A)189 B)329 C)161 D)84

kipiarov [429]

Answer:

329

Step-by-step explanation:

6 0

3 years ago

What is the first step when rewriting y = –4x2 + 2x – 7 in the form y = a(x – h)2 + k?

Brut [27]

Answer:pretty sure it’s D

On edge

3 0

3 years ago

Read 2 more answers

The probability is 1 in 4,011,000 that a single auto trip in the United States will result in a fatality. Over a lifetime, an av

IrinaVladis [17]

Answer:

0.0114

Step-by-step explanation:

(a) What is the probability of a fatal accident over a lifetime?

Suppose A be the event of a fatal accident occurring in a single trip.

Given that:

P(1 single auto trip in the United States result in a fatality) = P(A)

Then;

P(A) = 1/4011000

P(A) = 2.493 × 10⁻⁷

Now;

P(1 single auto trip in the United States NOT resulting in a fatality) is:

P( $\mathbf{\overline A}$ ) = 1 - P(A)

P( $\mathbf{\overline A}$ ) = 1 - 2.493 × 10⁻⁷

P( $\mathbf{\overline A}$ ) = 0.9999997507

However, P(fatal accident over a lifetime) = P(at least 1 fatal accident in lifetime i.e. 46000 trips)

= 1 - P(NO fatal accidents in 46000 trips)

Similarly,

P(No fatal accidents over a lifetime) = P(No fatal accident in the 46000 trips) = P(No fatality on the 1st trip and No fatality on the 2nd trip ... and no fatality on the 45999 trip and no fatality on the 46000 trip)

= $[P(\overline A)] ^{46000} \ \ \ (since \ trips \ are \ independent \ events)$

= $[0.9999997507]^{46000}$

= 0.9885977032

Finally;

P(fatal accident over a lifetime) = 1 - 0.9885977032

P(fatal accident over a lifetime) = 0.0114022968

P(fatal accident over a lifetime) ≅ 0.0114

8 0

3 years ago