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ladessa [460]
2 years ago
12

70 divided by 10 - 3 + 1 = 11 where to put parentheses

Mathematics
2 answers:
trasher [3.6K]2 years ago
7 0

Answer:

70/(10 - 3) + 1 = 11

Step-by-step explanation:

\frac{70}{10-3}+1\\\\\frac{70}{7}+1\\\\10+1\\\\11

Aleonysh [2.5K]2 years ago
6 0

Answer:

70/(10-3)+1=11

Step-by-step explanation:

simplify

70/(7)+1=11

10+1=11

11=11

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In a standard normal distribution, about _________% of the scores fall above a z-score of 3.00
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The normal rule to remember is 68-95-99.7, i.e. plus or minus three sigma corresponds to 99.7% of the probability. That leaves 0.3% in the two tails, or 0.15% in the tail above 3 sigma.

Answer: 0.15%


7 0
2 years ago
What is the Gcf for 12,54
JulsSmile [24]
I believe it’s 6

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4 0
3 years ago
Read 2 more answers
Birth weights of babies born to full-term pregnancies follow roughly a Normal distribution. At Meadowbrook Hospital, the mean we
Marina86 [1]

Answer:

Required Probability = 0.1283 .

Step-by-step explanation:

We are given that at Meadow brook Hospital, the mean weight of babies born to full-term pregnancies is 7 lbs with a standard deviation of 14 oz.

Firstly, standard deviation in lbs = 14 ÷ 16 = 0.875 lbs.

Also, Birth weights of babies born to full-term pregnancies follow roughly a Normal distribution.

Let X = mean weight of the babies, so X ~ N(\mu = 7 lbs , \sigma^{2}  = 0.875^{2}  lbs)

The standard normal z distribution is given by;

              Z = \frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } } ~ N(0,1)

where, X bar = sample mean weight

             n = sample size = 4

Now, probability that the average weight of the four babies will be more than 7.5 lbs = P(X bar > 7.5 lbs)

P(X bar > 7.5) = P( \frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } } > \frac{7.5-7}{\frac{0.875}{\sqrt{4} } }  ) = P(Z > 1.1428) = 0.1283 (using z% table)

Therefore, the probability that the average weight of the four babies will be more than 7.5 lbs is 0.1283 .

8 0
3 years ago
I need help pleasee thank
Ganezh [65]

Answer:

A=51

a=22.2

c=28.6

Step-by-step explanation:

∠A=180-90-39

     =51

a/sin51=18/sin39

a=22.2

c/sin90=18/sin39

c=28.6

4 0
2 years ago
Read 2 more answers
Sara Is 4 5/8 feet tall. Her younger sister is 4/5 as tall as her. How tall is Sara’s sister
Yuki888 [10]

We need to multiply 4/5 by 4 5/8. We change 4 5/8 into a fraction to do the multiplication.

4/5 * 4 5/8 =

= 4/5 * 37/8

= 148/40

= 37/10

= 3 7/10

Answer: Sara's sister is 3 7/10 ft tall.

5 0
3 years ago
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