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Alexeev081 [22]
3 years ago
11

Convert 2.8 radians to degree measure. Round your answer to the nearest hundredth.​

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
8 0

Answer:

16.04°

Step-by-step explanation:

2.8 \: rad = x \: degrees \\

1rad × 180/π = 57.296°

x = 2.8 \times  \frac{180}{\pi}  = 16.0428 \\ x = 16.04

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mrs_skeptik [129]

Answer:

3/47

Step-by-step explanation:

of the 47 total cars, 3 of them are a beige SUV

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3 years ago
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ΔA'B'C' is the image of a reflection of ΔABC across the line x=1. The y-coordinates of the vertices of ΔABC and its image ΔA'B'C
seropon [69]

Answer:

A(y=3) B(y = -2) C(y= 4)

A' (y = 3) B(y= -2) C(y= 4)

Step-by-step explanation:

4 0
2 years ago
A teacher was interested in finding out whether a special study program would increase the scores of students on a national exam
bija089 [108]

Answer:

Check the explanation

Step-by-step explanation:

Going by the first attached image below we reject H_o against  H_1 if obs.T > t_{\alpha /2;n-1}

here obs.T=1.879

\therefore obs.T \ngtr 2.447=t_{0.025;6}

we accept H_o:\mu _{1}=\mu_{2} at 5% level of significance.

i.e there is no sufficient evidence to indicate that the special study program is more effective at 5% level of significance.

1.

this problem is simillar to the previous one except the alternative hypothesis.

Let X_i's denote the bonuses given by female managers and Y_i's denote the bonuses given by male managers.

we assume that X_i \sim N(\mu _{1},\sigma _{1}^{2}) Y_i \sim N(\mu _{2},\sigma _{2}^{2}) independently

We want to test H_0:\mu_{1}=\mu_{2} vs H_1:\mu_{1}\neq \mu_{2}

define D_i=X_i-Y_i , i=1(1)8

now D_i\sim N(\mu _{1}-\mu _{2}=\mu _{D},\sigma _{1}^{2}+\sigma _{2}^{2}=\sigma _{D}^{2}) , i=1(1)8

the hypothesis becomes

H_0:\mu_{D}=0 vs H_1:\mu_{D}\neq 0

in the third attached image, we use the same test statistic as before

i.e at 5% level of significance there is not enough evidence to indicate a difference in average bonuses .

3 0
3 years ago
Graham decided to play football this year instead of getting a part-time job. Last year he made about $1,100 during football sea
atroni [7]

10,091 because it's a 10 season football season and he spends 9 dollars every game

Step-by-step explanation:

ez

7 0
3 years ago
The perimeter of the square
Rama09 [41]

Answer:

x = 20/49 units; P = 8 48/49 units

Step-by-step explanation:

All sides of a square are congruent.

That means that the two given side lengths are equal.

We set the two lengths equal and solve the equation for x.

5.5x = (1/5)(3x + 10)

Multiply both sides by 5.

27.5x = 3x + 10

Subtract 3x from both sides.

24.5x = 10

x = 10/24.5

x = 20/49

The perimeter of a square is 4s, where s is the length of a side.

P = 4s

= 4(5.5x)

= 4 * 5.5 * 20/49

= 22 * 20/49

= 440/49

= 8 48/49

Answer: x = 20/49 units; P = 8 48/49 units

4 0
3 years ago
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