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Nonamiya [84]
3 years ago
11

A model airplane has a length of 15in and a width of 9in. If that actual airplane is going to be 65 feet long, how wide is the a

ctual plane?
A. 42ft
B. 58ft
C. 39ft
D. 23ft
Mathematics
1 answer:
Vaselesa [24]3 years ago
3 0
The answer would be C.
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IceJOKER [234]
The answer is C
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7 0
3 years ago
Read 2 more answers
What expression is equivalent to 7sqrtx^2/5sqrty^3​
V125BC [204]

Answer:

Step-by-step explanation:

Sounds as tho' possible answer choices were listed.  Please, share them without being asked to do so.  Thank you.

 7√(x²)          7√(x²)

------------- = ----------------------

  5 √(y³)        5√( y^(3/2) )

We want to get the fractional exponent out of the denominator.  To do this, multiply both numerator and denominator by y^(1/2):

 7√(x²)          7√(x²)                y^(1/2)      7√(x²)·y^(1/2)       7x√y

------------- = --------------------- * ----------- = --------------------- = ----------

  5 √(y³)        5√( y^(3/2) )       y^(1/2)        5 √(y²)                  5y

This is the final answer.  We have succeeded in removing radicals / fractional exponents from the denominator.

3 0
3 years ago
can you please explain to me how 570ml = oz. I'm having a hard time figuring it out. I'm having a problem with converting.
Vladimir79 [104]
19.2740122 fluid ounces = 570 milliliters. I'm positive this really is the answer.  :)
8 0
3 years ago
Simplify 4 3 square root 64
Ierofanga [76]

Answer:

\large\boxed{4\sqrt[3]{64}=16}

Step-by-step explanation:

\sqrt[3]{a}=b\iff b^3=a\\\\4\sqrt[3]{64}=(4)(4)=16\\\\\sqrt[3]{64}=4\ \text{because}\ 4^3=64

8 0
3 years ago
The following data represent the pH of rain for a random sample of 12 rain dates. a normal probability plot suggest the data cou
babunello [35]

Answer:

Step-by-step explanation:

a) Estimate for population mean = Sum/n =\frac{59.1}{12} =4.925

b) Variance = 0.099208

Std dev = 0.314974

Std error = 0.0950

For 95% margin of error = 1.96*Std error

=0.1861

Confidence interval = (4.925-0.1861, 4.925+0.1861)\\=(4.7389, 5.1111)

Interpretation of confidence interval:

A) if repeated samoles are taken, 95% of them will have a sample pH of rain water between [ ] & [ ].

For 99%  CI,  z value = 2.59

Conf interval = (4.6790, 5.1710)

C)if repeated samoles are taken, 99% of them will have a sample pH of rain water between [ ] & [ ].

As the level of confidence increases l, the width of the interval[ increases] this makes sense since the [  margin of error] [increases]

3 0
2 years ago
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