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3 years ago

Please help i need it

Mathematics

1 answer:

Jet001 [13]3 years ago

7 0

Answer:

Step-by-step explanation:

The square root of 88 is between two perfect squares.

Remember 9*9 = 81 and 10*10 = 100. Since 88 is between 81 and 100 then its square root is between them as well.

√81 < √88 < √100

They simplify as perfect squares to: 9 < √88 < 10

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In a sample of 57 temperature readings taken from the freezer of a restaurant, the mean is 29.6 degrees and the population stand

Natalka [10]

Answer:

(29.14 ; 30.06)

Step-by-step explanation:

Given that'

Sample size (n) = 57

Mean (m) = 29.6

Population standard deviation (σ) = 2.7

Confidence interval = 80%

= (1 - 0.8) / 2 = 0.1

Mean ± z * σ/√n

Using the Z probability calculator : Z0. 1 = 1.28

Hence,

29.6 ± 1.28 * (2.7 / √57)

29.6 - (1.28 * 0.3576237) ; 29.6 + (1.28 * 0.3576237)

29.142241664 ; 30.057758336

(29.14 ; 30.06)

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3 years ago

Is Is y=2x+7 proportional?

inn [45]

Answer:

Step-by-step explanation:

Proportional must go through (0,0)

0 = 2(0) +7

0 = 7

This is not true so this is not proportional

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3 years ago

Jenny bakes 10 cookies. She puts 7 chocolate chips on each cookie. Draw a tape diagram, and label the total amount of chocolate

IgorC [24]

Jenny bakes 10 cookies. she puts 7 chocolate chips on each cookie draw a tape diagram and label the total amount

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3 years ago

You are working on a proof. You know that A and B are on the perpendicular bisector of CD. What can you conclude? A) AC = BD B)

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You can only conclude that AC = AD

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3 years ago

HELP WILL GIVE 15 POINTS <br>what is the range of this function and pls explain

Nataly [62]

Answer:

$f(x)\geq -2$

Step-by-step explanation:

Range corresponds to the values of y on the y-axis. If we see the graph the minimum value of the y-coordinate is -2 and then it tends to increase from it. We do not know till where the y values will increase in the figure it shows 6 but it's still actually increasing we keep on tracing the graph but the minimum value will always remain the same which is -2 . So we can say that the range of the function is

$f(x)\geq -2\\$

Where f(x) is the function and since the values of y on the y-axis increase from -2 we can say that the function has the range of values greater than or equal to -2

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3 years ago