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ira [324]
3 years ago
9

Can someone help me with this question

Mathematics
1 answer:
Tasya [4]3 years ago
8 0
I’m pretty sure you add 78+55= 133
180-133=47
so 9x+2=47
subtract 2 from 47 and itself
so 9x=45
divide 9 and 45 by 9
so x=5
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2 years ago
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What is an equivalent expression for the quotient? 4²/4⁵
Lisa [10]

Answer:

\frac{1}{ {4}^{3} }

Step-by-step explanation:

\frac{ {4}^{2} }{ {4}^{5} }  =  \frac{1}{ {4}^{ - 2} \times  {4}^{5}  }  =  \frac{1}{ {4}^{(5 - 2)} }  = \frac{1}{ {4}^{3} }

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Step-by-step explanation:

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3 years ago
An angle measures 32° more than the measure of its complementary angle. What is the measure of each angle?
Leviafan [203]

Answer:

29° ; 61°

Step-by-step explanation:

Let one angle  = x°

Other angle = (x + 32)°

x + x + 32 = 90   {given they are complementary}

2x + 32 = 90

2x = 90 -32

2x = 58

x = 58/2

x = 29

One angle  = 29°

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3 0
3 years ago
Birth Weights Babies born after a gestation period of 32-35 weeks have a mean weight of 2600 grams and a standard deviation of 6
lukranit [14]

Answer:

The z-score for the 34-week gestation period baby is 0.61

Step-by-step explanation:

The formula for calculating a z-score is is z = (x-μ)/σ,

where x is the raw score,

μ is the population mean

σ is the population standard deviation.

We are told in the question that:

Babies born after a gestation period of 32-35 weeks have a mean weight of 2600 grams and a standard deviation of 660 grams. Also, we are supposing a 34-week gestation period baby weighs 3000grams

The z-score for the 34-week gestation period baby is calculated as:

z = (x-μ)/σ

x = 3000, μ = 2600 σ = 660

z = 3000 - 2600/660

= 400/660

=0.6060606061

Approximately, ≈ 0.61

6 0
2 years ago
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