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4 years ago

13

What is the equation 5 (x+4)=40

1 answer:

lord [1]4 years ago

4 0

5/5 (x-4)=40/5

X+4=8

X=8-4

X=4

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Erin the ant starts at a given corner of a cube and crawls along exactly 7 edges in such a way that she visits every corner exac

Virty [35]

Answer:

A. 6

Step-by-step explanation:

Taking into account that the starting point (given corner) is the first edge and between each edge the ant walked is 1 path, we subtract of the total number of edges the one, because between each corner or edge there is one path, so the answer is seven minus one equal six, 7-1=6

7 0

3 years ago

T= hp+2b solving for b

N76 [4]

B=-1/3 hp+1/3 t

hope this helps

8 0

4 years ago

Write the equation y-2=6x+3 in y=mx+b form

ExtremeBDS [4]

Answer:

y=6x+5

Step-by-step explanation:

y-2=6x+3

y=6x+3+2

y=6x+5

7 0

4 years ago

Suppose the FAA weighed a random sample of 20 airline passengers during the summer and found their weights to have a sample mean

Orlov [11]

Answer:

Step-by-step explanation:

Given Parameters

Mean, $x$ = 180

total samples, n = 20

Standard dev, $\sigma$ = 30

$\alpha$ = 1 - 0.95 = 0.05 at 95% confidence level

Df = n - 1 = 20 - 1 = 19

Critical Value, $t_\alpha$ , is given by

$t_{c}=t_{\alpha, df} = t_{0.05,19} = 1.729$

a).

Confidence Interval, $\mu$ , is given by the formula

$\mu = x +/- t_c \times \frac{s}{\sqrt{n} }$

$\mu = 180 +/- 1.729 \times \frac{30}{\sqrt{20} }$

$\mu = 180 +/-11.5985$

$191.5985 > \mu > 168.4015$

b).

Critical Value, $t_{\alpha/2}$ , is given by

$t_{c}=t_{\alpha/2, df} = t_{0.05/2,19} = 2.093$

Confidence Interval, $\mu$ , is given by

$\mu = x +/- t_c \times \frac{s}{\sqrt{n} }$

$\mu = 180 +/- 2.093 \times \frac{30}{\sqrt{20} }$

= 180 +/- 14.0403

= 165.9597 < $\mu$ < 194.0403

8 0

3 years ago

How do you write (x^2)^3 without exponents

Rina8888 [55]

(x^2)^3 is the same as x^6 which is the same as x*x*x*x*x*x

5 0

3 years ago