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3 years ago

Please help me i really need help please

Mathematics

2 answers:

hammer [34]3 years ago

8 0

Answer:

Savannah, GA

Step-by-step explanation:

I just looked it up.

Aleksandr-060686 [28]3 years ago

4 0

The ZIP code is a system of postal codes used by the United States Postal Service (USPS) since 1963 and is often called ZIP. The letters ZIP are an acronym for Zone Improvement Plan and must be written in capital letters. The term ZIP was chosen to suggest that postal mail travels more efficiently, and therefore faster, when senders use the code. It was chosen to suggest that mail travels more efficiently, and therefore faster. , when senders use the postal address code. The basic format is made up of five numeric digits. In 1983 the ZIP + 4 zip code system was introduced in the US, adding four digits to the end of the old five-digit codes. The four added digits can help determine a more precise location. The term "ZIP Code" was initially registered as a service mark (a type of trademark) by the United States Postal Service, but the registration has since expired.

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What is the answer for x²+9x-10

Alexxandr [17]

(x-1) (x + 10)

Step-by-step explanation:

I think it's this but I'm not sure if I did it right

8 0

3 years ago

Read 2 more answers

PLEASE HELP! NO ONE HAS BEEN HELPING WITH MY QUESTIONS SO IT WOULD MEAN A LOT IF YOU DID!

kvv77 [185]

Answer:

80 m²

Step-by-step explanation:

The area (A) of a trapezoid is calculated as

A = $\frac{1}{2}$ h (a + b)

where h is the perpendicular height between bases and a, b are the bases

Here h = 8, a = 14 and b = 6, thus

A = $\frac{1}{2}$ × 8 × (14 + 6) = 4 × 20 = 80 m²

3 0

3 years ago

Liwen and Celina shared some plants in a ratio of 5:6. Celina decided to give Liwen 2/3 of her plants, which left her with 21 fe

djyliett [7]

Answer: 231

Explanation:

Liwen Celina

5x 6x

5x - 21 = $(\frac{2}{3})$ 6x

5x - 21 = 4x

-4x +21 -4x +21

x = 21

Liwen: 5x = 5(21) = 105

Celina: 6x = 6(21) = 126

Total: 231

6 0

3 years ago

Given that z is a standard normal random variable, find z for each situation. The area between 0 and z is .4750. Answer The area

algol13

Answer:

$P(0$

And solving for z we have

$P(Z$

And we can find the value for z with the following excel code:

"=NORM.INV(0.975,0,1)"

And we got z =1.96

$P(Z>z)= 0.1314$

And we can use the complement rule and we got:

$P(Z>z) = 1-P(Z$

$P(Z$

And we can find the value for z with the following excel code:

"=NORM.INV(0.8686,0,1)"

And we got z =1.120

$P(Z$

And we can find the value for z with the following excel code:

"=NORM.INV(0.67,0,1)"

And we got z =0.440

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

We want this probability:

$P(0$

And solving for z we have

$P(Z$

And we can find the value for z with the following excel code:

"=NORM.INV(0.975,0,1)"

And we got z =1.96

For the next part we want to calculate:

$P(Z>z)= 0.1314$

And we can use the complement rule and we got:

$P(Z>z) = 1-P(Z$

$P(Z$

And we can find the value for z with the following excel code:

"=NORM.INV(0.8686,0,1)"

And we got z =1.120

For the next part we want to calculate:

$P(Z$

And we can find the value for z with the following excel code:

"=NORM.INV(0.67,0,1)"

And we got z =0.440

6 0

3 years ago

Alisa is making bracelets with leather bands. each bracelet uses 7 3/4 inches of leather banding. she plans to make 4 bracelets.

Artyom0805 [142]

Each bracelet is $7 \frac{3}{4} inches$

Turn it into an improper fraction

Multiply 7 and 4 and add 3 which is over 4 which is $\frac{31}{4}$

Multiply by 4 | for each bracelet being made

$\frac{31}{4} * \frac{4}{1}$ $= \frac{124}{4}$

124÷4=31

Answer:

You need 31 inches to make all the braclets

5 0

4 years ago