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professor190 [17]
3 years ago
14

Evaluate the expression 72/x2-2 for x=3

Mathematics
1 answer:
Rzqust [24]3 years ago
7 0

Answer:46

Step-by-step explanation:

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Find the circumference of the following circle using 3.14 for π. Label your answer and do not round.
valina [46]
D=2r so the diameter is 10.4ft. Multiple 10.4ft by 3.14 to get the answer. The answer is 32.656
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Akimi4 [234]

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What is the slope of the line shown below? PLEASE HELP
NikAS [45]

Answer:

C. 2

Step-by-step explanation:

The grid markings are the same distance apart in the x- and y-directions, so a line with slope 1 will make a 45° angle with the x-axis. Your line is steeper than that, so has a slope more than 1.

Your line goes up to the right, so its slope is positive.

The only answer choice that is a positive number more than 1 is ...

... C. 2

_____

The slope is computed as the ratio of rise (vertical change) to run (horizontal change). The two marked points tell you the vertical change is from y=-4 to y=6, a change of 6-(-4) = 10. The horizontal change is from x=1 to x=6, a change of 6-1 = 5.

Then the ratio of rise to run is 10/5 = 2. This matches answer C.

6 0
3 years ago
Are the two triangles congruent ? Please answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!
Ghella [55]

Answer:

No

Step-by-step explanation:

None of the angles in the two triangles match, so it is impossible for them to be congruent.

3 0
2 years ago
*Write An inequality then solve for the width.* The length of a rectangle is 12 more than its width. what values of the width wi
Sonbull [250]
Let x be the width of the rectangle, so the length will be 12+x.
Now, to find the perimeter of our rectangle, we are going to use the formula for the perimeter of a rectangle formula: P=2(w+l)
where 
P is the perimeter 
w is the width 
l is the length 

We know that w=x and l=12+x, so lets replace those values in our formula:
P=2(x+12+x)
P=2(2x+12)
P=4x+24

We want <span>values of the width that will make the perimeter less than 96 feet, so lets set up our inequality:
</span>4x+24\ \textless \ 96
4x\ \textless \ 72
x\ \textless \  \frac{72}{4}
x\ \textless \ 18
<span>
Since the width can't be zero, we can conclude that the values </span>of the width that will make the perimeter less than 96 feet are: 0\ \textless \ x\ \textless \ 18 or in interval notation: (0,18)

4 0
3 years ago
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