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nadezda [96]
3 years ago
11

Evaluate:

Mathematics
2 answers:
Alona [7]3 years ago
6 0
(a). C because -1•-1=1•-1=-1•-1=1
torisob [31]3 years ago
3 0
The numerator of the fraction is (+1).

So the whole fraction is        1 / -1  and that's       -1  . (a)
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Write 9/10 as an equivalent fraction with a denominator of 100 then write the fraction as a decimal
Firlakuza [10]

Answer:

Since the denominator has to be 100 and 9/10, 0.90, and 90% are all equal the you would just need to make the 9 into a 90.  Therefore, yout answer will be 90/100.

5 0
2 years ago
Whats 5/6 + 1/2 plz i am a starter​
Firdavs [7]
In exact form it would be 4/3
3 0
3 years ago
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Find the circumference of a circle whose area is equal to 64π^2​
PilotLPTM [1.2K]

Answer:

14 6/7 is the circumference

Step-by-step explanation:

you first of all look for the radius using the formulae multiply both sides by the reciprocal of 22/7

7/22 ×22/7r=64×7/22=224/11{2 4/11)

2 4/11 is the radius

cir =2×22/7×2 4/11

2×22/7× 26/11=104/7

==== =14 6/7

all i can do but am not sure sorry

7 0
1 year ago
the length of a rectangle is 6.7 cm more than 2 times the width. If the perimeter of the rectangle is 57.2 cm, what are its dime
ss7ja [257]
57.2-6.7-6.7=43.8
43.8÷6=7.3
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length = 21.3cm
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6 0
3 years ago
Nam owns a used car lot. He checked the odometers of the cars and recorded how far they had driven. He then created both a histo
Scilla [17]

Answer:

(a) The correct option is (A).

(b) The correct option is (B).

Step-by-step explanation:

Nam collected the data for the distance traveled by all the cars in his car lot.

(a)

A histogram is a bar graph representing the distribution of a random variable. The height of the bars of the histogram represents the frequency for a specific interval.

If Nam wants to know how many vehicles had driven more than 200,000 km, the histogram would be the best display of this data. This is because the histogram shows the frequency for various interval values.

The correct option is (A).

(b)

A boxplot, also known as a box and whisker plot is a method to demonstrate the distribution of a data-set based on the following 5 number summary,

  • Minimum (shown at the bottom of the chart)
  • First Quartile (shown by the bottom line of the box)
  • Median (or the second quartile) (shown as a line in the center of the box)
  • Third Quartile (shown by the top line of the box)
  • Maximum (shown at the top of the chart).

So, if Nam wants to find whether the median distance was approximately 140,000 km, a box plot would be a better choice. This is because the box plot represents the median of the data by a line within the box.

The correct option is (B).

4 0
2 years ago
Read 2 more answers
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