3 years ago

The expression j7j is equivalent to A. 1 B. O C. 7 D. 7

1 answer:

7 0

Answer:

Step-by-step explanation:

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ElenaW [278]

Answer:

scale factor = $\frac{1}{3}$

Step-by-step explanation:

Compare the ratio of corresponding sides, image to original.

scale factor = $\frac{3}{9}$ = $\frac{1}{3}$

7 0

3 years ago

lesya [120]

42×3=126
42×6=252
42×7=294
42×8=336

Nearest is Product of 7
So quotient should be 7

4 0

3 years ago

asambeis [7]

False. To find C, we can use the equation:

a^2 + b^2 = c^2

4^2 + 20^2 = c^2

c^2 = 416

c = approximately 20.40

4 0

4 years ago

lina2011 [118]

The answer will be sin(−1)−32=−32.841471 Im not sure but thats what i think

8 0

3 years ago

Korolek [52]

The formula of the variance of the distribution of sample mean of a random variable X, which it will denoted by $V(\bar{X}),$ is

$\frac{\sigma^2_X}{n}\ ,\\$

where n is the size of the sample.

Since X is continuously uniform between 3 and 8, you have

$\sigma^2_X = \frac{(8-3)^2}{12} = \frac{25}{12} \ .$

Therefore, the variance wanted is $V(\bar{X} ) = \frac{25}{26\cdot12}\approx0.0801$

5 0

3 years ago