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Helen [10]
3 years ago
11

В та If B = 49°13' and b - 10 find a a. 4.6 b. 8.6 C. d. 5.4 6.5

Mathematics
1 answer:
vladimir1956 [14]3 years ago
3 0
It it’s 75 I k ow bc I took the test
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Can you simplify 2.8(3-0.8)
leonid [27]
No you can not simplify
4 0
3 years ago
Rachel recorded the number of calls she made at work during the week:
Dmitry [639]

The chi-squared test statistic will be 3.11. The test statistic is contrasted with a predicted value based on the Chi-square distribution.

<h3>What is the chi-squared test statistic?</h3>

Finding the squared difference between the actual and anticipated data values, then dividing that difference by the expected data values, constitutes the test statistic.

The formula for the chi-squared test statistic is;

\sum \frac{(O_i-E_i)^2}{E_i } \\\\

Where,

\rm O_i is the observed value

\rm E_i is the expected value

The chi-square test statics is;

\rm( \frac{18-18}{18} )^2 +( \frac{14-18}{18} )^2 + (\frac{24-18}{18} )^2+( \frac{16-18}{18} )^2 \\\\ 0+ \frac{16}{18}+ \frac{36}{18} +\frac{4}{18}\\\\ \frac{56}{18} \\\\ 3.11

Hence, the chi-squared test statistic will be 3.11.

To learn more about the chi-squared test statistic refer;

brainly.com/question/14082240

#SPJ1

5 0
2 years ago
Dave rented a jet ski for $6 per hours plus $20 for insurance. How many hours did he use the jet ski if he spent a total of $68?
Mekhanik [1.2K]

Answer:

8 hours

Step-by-step explanation:

6x+20=68

subtract 20 from both sides

6x=48

divide 6 both sides

x=8

7 0
3 years ago
Read 2 more answers
Do not give me any types of links.
jonny [76]

Answer:

B. 100 pi units squared

Step-by-step explanation:

Find the surface area of a sphere with radius 5 using the formula SA=4pir²

Leave answer in terms of π = pi

From the question

The formula for the Surface Area if a square = 4 × pi × r²

r = 5

Hence,

Surface Area of a Sphere = 4 × pi × 5²

= 100 pi units squared

Option B is the correct option

3 0
2 years ago
What’s the answer I don’t get this
luda_lava [24]

Answer:

K(-1)=6

Step-by-step explanation:

t=-1

2 times -1 squared

-1 squared=1

2x1 = 2

2+4=6

K(-1)=6

5 0
3 years ago
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