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oksano4ka [1.4K]
3 years ago
12

Tamar is thinking of a number in the hundredths. Her number is greater than 0.8 and less than 0.9. The greatest digit in the num

ber is in the hundredths place. What number is Tamar thinking of? Explain.
Mathematics
2 answers:
Yanka [14]3 years ago
5 0

Answer:

Therefore, Tamar is thinking of the number 0.89.

Step-by-step explanation:

Let x be the number Tamar is thinking of.

0.8 < x < 0.9

Since the greatest digits in the hundreths is greater digit, and there's an "8" in the tenths, the number can described as:

0.88< x < 0.9

There is only a single number in the hundredths that would fit the expression above, and that is 0.89.

Therefore, Tamar is thinking of the number 0.89.

Ivahew [28]3 years ago
3 0
0.89 i think its closest to 0.9
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Answer:

what is the complete question?

6 0
2 years ago
Limit as x approaches 9 of x^2 -81/sqrt of x - 3
Ipatiy [6.2K]

Answer:

108

Step-by-step explanation:

Limit as x approaches 9 of x^2 -81/sqrt of x - 3

First substitute x into the expression

= 9²-81/√9 - 3

= 81-81/3-3

= 0/0 (indeterminate)

Apply l'hospital rule

= lim x -> 9 d/dx(x²-81)/√x - 3

= lim x -> 9 2x/1/2√x

Substitute x = 9

= 2(9)/1/2√9

=18/1/(2(3)

=18 × 6/1

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Hence the limit of the function is 108

7 0
3 years ago
I need the answer to this simple Algebra 1 question. Thank you, I will give 10 brainly!!
Finger [1]
The answer is A because 8 is where you started and each time the x number goes up by on the y number goes down by seven (-7)
8 0
3 years ago
Can (5z+3)(-5z-3) result in a difference of squares
castortr0y [4]

Answer:

no, it cannot

Step-by-step explanation:

a difference of square is: a² - b² = (a - b)(a + b)

looking at the expression (5z+3)(-5z-3), we see that it does not fit the criteria of the breakdown of a perfect square, as (-5z-3) has a negative <em>a</em> term (-5z)

if we FOILed (5z+3)(-5z-3) out, we would get:

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3 years ago
Jack works as a waiter and is keeping track of the tips he earns daily. about how much does jack have to earn in tips on sunday
OLga [1]

A mean is an arithmetic average of a set of observations. The amount that Jack has to earn in tips on Sunday if he wants to average $19 a day is $25.

<h3>What is Mean?</h3>

A mean is an arithmetic average of a set of observations. it is given by the formula,

\rm Mean=\dfrac{\text{Sum of all obervation}}{\text{Number of observation}}

As it is given that Jack makes $12 on Monday, $14 on Tuesday, $18 on Wednesday, $16 on Thursday, $26 on Friday and $22 on Saturday. And we need to know how much he should earn on Sunday, so the average is $19. Therefore, we can write,

\rm Mean=\dfrac{\text{Sum of all obervation}}{\text{Number of observation}}

19 = \dfrac{12+14+18+16+26+22+x}{7}\\\\133 = 108 + x\\\\133-108=x\\\\x = 25

Hence, the amount that Jack has to earn in tips on Sunday if he wants to average $19 a day is $25.

Learn more about Mean:

brainly.com/question/16967035

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2 years ago
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