Ask question

Ask question

All categories

3 years ago

9

The area of a rectangular wall of a barn is 140 square feet. Its length is 6 feet longer than twice its width. Find the length a

nd width of the wall of the barn.

1 answer:

Lubov Fominskaja [6]3 years ago

3 0

Do you need to graph it?

You might be interested in

9. An express delivery service advertises next-day delivery of any parcel it receives before 3PM. The actual success rate is 90%

Juli2301 [7.4K]

Answer:

a) P(X =16 ) = 0.1853

b) $P(X \leq 12)$ = 0.0684

Step-by-step explanation:

GIVEN DATA:

n = 16

p = 0.90

from relation given probabllity can be solve

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

a)

$P(X =16 ) = ^{16}C_{16} * 0.90^x * ( 1 - 0.90)^{16-16}$

P(X =16 ) = 0.1853

b) $P(X \leq 12) = 1 - P(X \geq 13)$

= 1 - [ P(X = 13) +P(X = 14) +P(X = 15) +P(X = 16) ]

$= 1 - [ ^{16}C_{13} * 0.90^{13} * (1 - 0.90)^3 +^{16}C_{14} * 0.90^{14} * (1 - 0.90)^2 +^{16}C_{15} * 0.90^{15} * (1 - 0.90)^1 +^{16}C_{16} * 0.90^{16} * (1 - 0.90)^0 ]$

= 0.0684

4 0

3 years ago

The sum of two numbers is -14 one number is 20 less than the other find the numbers

Lisa [10]

Answer:

x=-17,y=3

Step-by-step explanation:

x+y=-14

x=x

y=x+20

x+(x+20)=-14

2x+20=-14

2x=-14-20

2x=-34

x=-34/2

x=-17

y=-17+20

y=3

3 0

3 years ago

The distance from Neptune to Mars is 4.272\times 10^{9}4.272×10 9 kilometers. How long would it take a rocket, traveling at 4.8\

just olya [345]

The time taken is $8.9 * 10^4hrs


$

<h3>Distances</h3>

Given the following information:

Distance from Neptune to Mars = $4.272\times 10^{9}$
Time is taken = $4.8\times 10^{4}km/hr$

Get the time taken:

Time = Distance/Speed

Time = $\frac{4.272\times10^9}{4.8\times 10^4}$

Time = 0.89 * 10^5

Time = 8.9 * 10^4hrs

Hence the time taken is $8.9 * 10^4hrs


$

Learn more on distance here: brainly.com/question/4931057

6 0

2 years ago

Lester's Cafe offers two kinds of espresso: single-shot and double-shot. Yesterday afternoon, the cafe sold 80 espressos in all,

bogdanovich [222]

Answer:

64 single-shot espressos

Step-by-step explanation:

Let's say that the cafe sold x single-shot espressos. The total number of espressos sold was 80, and 80% of that total 80 were single-shot. So, we have the equation:

x = 80% * 80

Remember that % just means "out of 100". So, 80% = 80/100:

x = (80/100) * 80 = 6400/100 = 64 single-shot espressos

Hope this helps!

7 0

3 years ago

Read 2 more answers

25 Points!!! This should be quick and easy for anyone who knows math well!

Ede4ka [16]

Answer:

Output = 8- input

Step-by-step explanation:

The first point is (1,7)

The input is 1 and the output is 7

The lines goes down, so we know that this is subtraction

Output = 8- input

7 = 8-1

Lets check another point

(5,3)

3 = 8-5

This checks

4 0

3 years ago