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Scilla [17]
3 years ago
15

The bed in the bedroom of Melanie's dollhouse is 4 inches long. The bed in Melanie's real bedroom is 6 feet long.

Mathematics
1 answer:
Ostrovityanka [42]3 years ago
3 0

Answer:

Dollhouse Melanie Martinez

Step-by-step explanation:

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As part of a study of the treatment of anemia in cattle, researchers measured the concentration of selenium in the blood of 36 c
iris [78.8K]

Answer:

Step-by-step explanation:

Given that a  part of a study of the treatment of anemia in cattle, researchers measured the concentration of selenium in the blood of 36 cows who had been given a dietary supplement of selenium (2 mg/day) for one year.

If x is the selenium concentration then

X has mean= 6.21 mg/dl

and std dev = 1.84

Sample size n = 36

std error of sample = \frac{1.84}{\sqrt{36} } \\=0.307

Margin of error for 95%

1.96(0.307)=0.602

Confidence interval = (6.21-0.605, 6.21+0.605)\\= (5.605, 6.815)

4 0
3 years ago
Ms. Stone decided to purchase 2 reusable bottles instead. When she got to the counter, she realized she had $10.15, only ⅝ of th
Bumek [7]

Answer:

The price of one reusable bottle is $8.12

Step-by-steetp explanation:

Ms stone wanted to purchase two reusable bottles but discovered she had only ⅝of the Mone and that ⅝ is equal to $ 10.15.

So the cost of what she wants to purchase will be called x.

Mathematically

⅝ * x = 10.15

X = (10.15*8)/5

X = 81.2/5

X= 16.24

The price of the two bottles is $16.24

So the price if one bottle will be calculated as follows.

2 bottles=$ 16.24

One bottle= $16.24/2

One bottle= $8.12

The price of one reusable bottle is $8.12

6 0
3 years ago
Rewrite the expression from part B by distributing -1 from each of the negative numbers.
WINSTONCH [101]

Answer:

I dont know an and i really need help on somthing and i dont have points and i joined today and got no points.

Step-by-step explanation:

6 0
3 years ago
For the graffiti cat sweater on page 9, Dodd knit
rodikova [14]

Answer: 54 stitches

Step-by-step explanation:

12/2=6

6 stitches= 1 inch

X stitches=9 inches

X=54 stitches

6 0
3 years ago
Read 2 more answers
Helpppo:)))))) pleaseeee
velikii [3]

Answer:

32

Step-by-step explanation:

Step 1: Define

f(x) = 3x² - 5x - 4

g(x) = -4x - 12

Step 2: Find f(g(x))

f(g(x)) = 3(-4x - 12)² - 5(-4x - 12) - 4

f(g(x)) = 3(16x² + 96x + 144) + 20x + 60 + 4

f(g(x)) = 48x² + 288x + 432 + 20x + 64

f(g(x)) = 48x² + 308x + 496

Step 3: Find f(g(-4))

f(g(-4)) = 48(-4)² + 308(-4) + 496

f(g(-4)) = 48(16) - 1232 + 496

f(g(-4)) = 768 - 736

f(g(-4)) = 32

3 0
3 years ago
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