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natima [27]
2 years ago
7

Write an algebraic equation to represent the situation

Mathematics
1 answer:
8090 [49]2 years ago
6 0

Answer:

C. 2d+3=12

Step-by-step explanation:

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Plz help, its worth 200 points by today
Leno4ka [110]

Answer:

X = \sqrt{39}

Step-by-step explanation:

1)\ X^2 + 5^2 = Y^2\ (Y\ is\ the\ hypotenuse\ of\ the\ smaller\ triangle)

2)\ Y^2 + 6^2 = 10^2

3)\ X^2 + 25 + 36 = 100

4)\ X^2 = 39

5)\ X = \sqrt{39}

3 0
3 years ago
What is eight dozen in standard form?
Amiraneli [1.4K]
Assuming 8 dozen is 96 not 8000000000000 it would be 9.6x10¹. If it is 8000000000000 then it's 8x10¹²
8 0
3 years ago
The value of V8 is between which two integers?<br> 7 and 9<br> 49 and 81<br> 2 and 3<br> 3 and 4
nekit [7.7K]

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

\sqrt{4}  <  \sqrt{8}  <  \sqrt{9}

Thus :

2 <  \sqrt{8}  < 3

So √8 is between 2 and 3 ,

Which means option three is the correct answer.

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

8 0
2 years ago
A mechanical engineer wishes to compare strength properties of steel beams with similar beams made with a particular alloy. The
Annette [7]

Answer:

50

Step-by-step explanation:

Level of significance, a = 0.01

Type II error probability, b =0.05

From the z-table:

the critical value at 1% level of significance, Zα = Z0.01 = 2.33

the critical value at 5% probability, Zβ = Z0.05 = 1.645

The critical value of z can be obtained from the standard normal table using the desired level of significance and the tail of test.  

The critical value tells the number of standards deviations away is the result from the mean.

Probability of type I error denoted by  a

Probability of type II error denoted by b.

Type I error is to falsely infer the existence of something that is not there, while a type II error is to falsely infer the absence of something that is.

From the given information,

a=0.01, b=0.05, o1 = o2 =0.05, Dο = 0, D' = 0.04

The sample size is calculated as,

n = ( o^2 + o2^2) * (Za +Zb)^2 /( (D' - D0)^2)

= (0.05^2 +0.05^2)*(2.33 + 1.645)^2 / (0.04 - 0)^2

= 49.38

which is 50 [Rounded to next integer]

4 0
3 years ago
What is the value of the the digit 2 in 0.025
olga55 [171]
The 2 is the hundredths value.
 Hope it helps!
5 0
3 years ago
Read 2 more answers
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