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Anastasy [175]
3 years ago
6

678,985,488 in expanded notation

Mathematics
1 answer:
____ [38]3 years ago
3 0
Six hundred seventy-eight million nine hundred eighty-five thousand four hundred eighty-eight. (I think)
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(7x10*5)x(3x10*2) in standerd form
marishachu [46]

Answer:

21,000

Step-by-step explanation:

This is more of straightforward multiplication, so I cannot explain much! If you want me to try to do more, then just comment.

(7 * 10 * 5) * (3 * 10 * 2)

= (70 * 5) * (30 * 2)

= (350) * (60)

= 21,000

Thusly, in standard form, the equation given is \boxed{21,000}.

Hope this helps! (:

7 0
3 years ago
Solving a system of linear equations of the form, y=mx+b
Fittoniya [83]
X= 7
y=77
im not 100% though
6 0
3 years ago
Read 2 more answers
Which expression equals (7y) ?<br> Р 7yi<br> Ту:<br> 1<br> 73 уз<br> 1<br> 0<br> 73 уз
Gennadij [26K]

Answer:

??????????

Step-by-step explanation:

???????????

what is this

7 0
3 years ago
g A manufacturer of sprinkler systems designed for fire protection claims that the average activating temperature is at least 13
Luden [163]

Answer:

There is enough evidence to reject the manufacturer’s claim and  the standardized test statistic z is -3.43

Step-by-step explanation:

A manufacturer of sprinkler systems designed for fire protection claims that the average activating temperature is at least 135°F.

So, Null hypothesis:H_0:\mu \geq 135

Alternate hypothesis :H_a:\mu

To test this claim, you randomly select a sample of 32 systems and find the mean activation temperature to be 133°F.

x=133

n = 32

Population Standard deviation =\sigma = 3.3^{\circ}F

Formula :z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}

z=\frac{133-135}{\frac{3.3}{\sqrt{32}}}\\\\z=-3.428

z=-3.43

Refer the z table for p value

p value = 0.0003

\alpha = 0.10

p value < α

So, we failed to accept null hypothesis

Hence there is enough evidence to reject the manufacturer’s claim and  the standardized test statistic z is -3.43

6 0
3 years ago
What is 2x + 2 when z = 0 ?
slavikrds [6]

Answer:

when x=0

2x + 2

= 2 \times 0 + 2

= 0 + 2

= 2

hope it helps you

make me brainliest if u r satisfied

8 0
2 years ago
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