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blondinia [14]
3 years ago
14

Please helpppp me I really confused

Mathematics
1 answer:
IrinaK [193]3 years ago
3 0

Answer:

The answer would be D

Step-by-step explanation:

This is a piecewise function, meaning that it is split into two parts. The right side is an exponential and that part is greater than one, the left side is a line less than or equal to one. The only equation that matches the criteria for that is D.

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Yesterday marcel walked 9,648 steps .this number in expanded form is
Natalka [10]

<u>Answer:</u>

  • The number 9,648 in expanded form is '9,648 = 9,000 + 600 + 40 + 8'.

<u>Step-by-step explanation:</u>

<em>Expanded form is a way to expand a number in addition form. Since the '9' is in the thousands place, it's value will be 9,000. With 6 in the hundreds place, it's value will be 600. This will occur the same thing with the tens and the ones place. Now, the answer to the question is explained below.</em>

  • => 9,648 = 9,000 + 600 + 40 + 8

Hence, <u>the number 9,648 in expanded form is '9,648 = 9,000 + 600 + 40 + 8'.</u>

Hoped this helped.

BrainiacUser1357

3 0
2 years ago
How to do this please Explain Thank you
Maurinko [17]

Answer:

x = 47

Step-by-step explanation:

There Are Many Methods In Which You Can Do It.

X = 47 ( Alternate Angles)   <em>//Alternate angles are angles that are in opposite  positions relative to a transversal intersecting two lines.</em>

<em />

6 0
3 years ago
Read 2 more answers
If the square of a positive integer is added to four times to integer the result is 117 find the integer.
zaharov [31]

Answer:

x = -2 ± 452i

Step-by-step explanation:

x² + 4x = 117

x² + 4x - 117 = 0

if you solve this quadratic by using the quadratic formula you get:

x = -2 ± 452i

452i is an imaginary number that equals \sqrt{-452}

5 0
3 years ago
The AARP (American Association of Retired People) report that at least 60% of retired people under the age of 65 would return to
mart [117]

Answer:

Step-by-step explanation:

Proportion of retired people under the age of 65 would return to work on a full-time basis if a suitable job were available = 60/100 = 0.6 = P

Null hypothesis: P ≤ 0.6

Alternative: P > 0.6

First, to calculate the hypothesis test, lets workout the standard deviation

SD =  √[ P x ( 1 - P ) / n ]

where P = 0.6, 1 - P = 0.4, n = 500

SD = √[ (0.6 x 0.4) / 500]

SD = √ (0.24 / 500)

SD = √0.00048

SD = 0.022

To calculate for the test statistic, we have:

z = (p - P) / σ where p = 315/500 = 0.63, P = 0.6, σ = 0.022

z = (0.63 - 0.6) / 0.022

z = 0.03/0.022

z = 1.36

At the 2% level of significance, the p value is less than 98% confidence level, thus we reject the null hypothesis  and conclude that more than 60% would return to work.

4 0
3 years ago
How would you find the square root of a number? How would you use it?
NeTakaya
A square root is a number times itself .
for example 2x2 is a square root .
so, any number times itself is a square root
4 0
4 years ago
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