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kvasek [131]
3 years ago
6

Help? I dontn understand this! algreba is weird and hard

Mathematics
1 answer:
Softa [21]3 years ago
5 0
1. B
2.0.9925
3.C
4.A
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KITE is a kite.
vodomira [7]

Answer:

KI = 4.47

IT = 6.32

Step-by-step explanation:

KI

2²+4² = 4+16 = 20

The square root of 20 is 4.47

IT

2²+6² = 4 + 36 = 40

The square root of 40 is 6.32

6 0
2 years ago
A shoe manufacturer collected data regarding men's shoe sizes and found that the distribution of sizes exactly fits the normal c
Lina20 [59]

Answer: 97.72%

Step-by-step explanation:

Given : A shoe manufacturer collected data regarding men's shoe sizes and found that the distribution of sizes exactly fits the normal curve.

Let x be the random variable that represents the shoe sizees.

Also, The population mean = \mu=11 ; Standard deviation: \sigma=1.5

Formula for z:-

z=\dfrac{x-\mu}{\sigma}

Put x= 8, we get

z=\dfrac{8-11}{1.5}=-2

Now, the probability that the male shoe sizes are greater than 8 :-

P(x>8)=P(z>-2)=1-P(z\leq-2)\\\\=1-0.0227501=0.9772499\approx0.9772

Hence, the percent of male shoe sizes are greater than 8 is 97.72%.

7 0
3 years ago
A recipe for 30 cookies calls for 6 tablespoons of butter. How many tablespoons of butter would you need for 45 cookies?
ASHA 777 [7]

Answer:

9 tablespoons

Step-by-step explanation:

cut the recipe in half then add one half to the full

6+3=9

i bake a lot i had to learn how to do this

5 0
3 years ago
Read 2 more answers
There are 40 coins in a roll of quarters. The change machine at the local arcade holds 320 rolls of quarters. How many quarters
erica [24]

Answer:

C, 12,800

Step-by-step explanation:

40 x 320 = 12,800

3 0
3 years ago
PLEASE HELP ME WILL MARK BRAINLIEST!!
Misha Larkins [42]

Answer:

7,881.628

Step By Step Explanation:

It just is?

6 0
3 years ago
Read 2 more answers
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