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insens350 [35]
3 years ago
11

Simplify this expression. 8+3(60/5)

Mathematics
2 answers:
ddd [48]3 years ago
8 0

Answer:44

Step-by-step explanation: 60/5 evaluates to 12

Multiply 3 and 12

1

3*(60/5) evaluates to 36

8+3*(60/5) evaluates to 44

telo118 [61]3 years ago
8 0

Answer:

44

Step-by-step explanation:

8+3(60/5)= 8+3(12)

8+36=44

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If two straight lines intersect and one angle is 30 degrees what are the other three angles
mel-nik [20]
Easey peasy
oposite angle is equal
other angles are supplementary (supplementary means add to 180, and a straight line=180 so if you look at 2 lines intersecting and think for a little bit, you wiill see why)

oposite angle=30
other angle is adds to 180
30+other=180
subtract 30
other=150
other is oposite other other
other=other other
150=other other

angles are
150,30,150
3 0
3 years ago
Read 2 more answers
Some transportation experts claim that it is the variability of speeds, rather than the level of speeds, that is a critical fact
scZoUnD [109]

Answer:

Explained below.

Step-by-step explanation:

The claim made by an expert is that driving conditions are dangerous if the variance of speeds exceeds 75 (mph)².

(1)

The hypothesis for both the test can be defined as:

<em>H</em>₀: The variance of speeds does not exceeds 75 (mph)², i.e. <em>σ</em>² ≤ 75.

<em>Hₐ</em>: The variance of speeds exceeds 75 (mph)², i.e. <em>σ</em>² > 75.

(2)

A Chi-square test will be used to perform the test.

The significance level of the test is, <em>α</em> = 0.05.

The degrees of freedom of the test is,

df = n - 1 = 55 - 1 = 54

Compute the critical value as follows:

\chi^{2}_{\alpha, (n-1)}=\chi^{2}_{0.05, 54}=72.153

Decision rule:

If the test statistic value is more than the critical value then the null hypothesis will be rejected and vice-versa.

(3)

Compute the test statistic as follows:

\chi^{2}=\frac{(n-1)\times s^{2}}{\sigma^{2}}

    =\frac{(55-1)\times 94.7}{75}\\\\=68.184

The test statistic value is, 68.184.

Decision:

cal.\chi^{2}=68.184

The null hypothesis will not be rejected at 5% level of significance.

Conclusion:

The variance of speeds does not exceeds 75 (mph)². Thus, concluding that driving conditions are not dangerous on this highway.

7 0
3 years ago
Can anyone please help me ?!?!?!?!?!??!!??!?!?!?!?!?!??!?! which fractions represent the given fractions rewritten with their LC
iren2701 [21]
Best Answer:  <span>4/3x-6y, 1/5x-10y 
= 4/3(x-2y) , 1/5(x-2y) 
LCD = 3 × 5(x – 2y) = 15(x – 2y</span>
7 0
3 years ago
Find the mode of 7 , 3 , 2 , 5 , 0. Single choice.<br><br><br>2<br><br>0<br><br>No mode​
frez [133]

Answer:

No mode​

Step-by-step explanation:

The mode is the statistical method in which the most repetitive number should be considered

Like if we take an example

1,1, 2, 2, 2, 4, 4,4,4

So here the mode is 4 as 4 is repeated 4 times

But in the given situation there is no mode as every number is written single time

5 0
2 years ago
This bar graph shows the money earned from the sale of skateboards one Saturday at four stores. What can you tell from the infor
-BARSIC- [3]

Answer:

its D <3

Step-by-step explanation:

hope this helps :)

6 0
3 years ago
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