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Ede4ka [16]
3 years ago
14

Simplify: 2x2 – 1+ 4x2-5

Mathematics
1 answer:
erastova [34]3 years ago
8 0

Answer:

6x^2 - 6

Step-by-step explanation:

Hope this helps!!

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The right isosceles triangle shown is rotated about line k with the base forming perpendicular to k. The perimeter of the triang
kipiarov [429]

Answer:

The new shape will be cone with a radius of 17 units, tilt height 24 and units of height k.

Step-by-step explanation:

The image related to the exercise is necessary, to be able to solve therefore the attached one.

We have the following information:

Perimeter of the triangle = 58 units

Hypotenuse = 24 units

We have that the other two sides are equal and have x units, therefore we have the following:

x + x + 24 = 58

2 * x = 58-24

2 * x = 34

x = 34/2

x = 17

Now the triangle rotates around line k , and then it will result in a cone, which is a three-dimensional shape.

Therefore, the new shape will be cone with a radius of 17 units, tilt height 24 and units of height k.

4 0
3 years ago
Cody has 7/8 pound of cheese. he uses 1/7 since there are 16 ounces in a pound how much is left
bagirrra123 [75]
Step One
Find the fraction left.
Starting amount = 7/8 pound
Used amount = 1/7 of a pound.

The common denominator of these two fractions is 8 * 7 = 56

Amount left = amount started with - amount used
Amount left = 7/8 - 1/7
Amount left = \frac{7 *7 }{8 * 7} -  \frac{1 * 8}{7 * 8}
Amount left = \frac{49 }{56} - \frac{ 8}{56}
Amount left = 41 / 56 pounds

Step Two
Convert the Answer to ounces.

Ounces = (41/56) * 16 
Ounces = 11.71 ounces  almost 11 3/4
8 0
3 years ago
For what values of x is x2+2x=24 true?<br><br>-6 and -4<br>-4 and 6<br>4 and -6<br>6 and 4 ​
makkiz [27]

Answer:

It is actually choice c

Step-by-step explanation:

I took the test

3 0
3 years ago
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15. Which graph does not represent the graph of a function?<br> 25 points?
shusha [124]

Answer:

the answer is c

Step-by-step explanation:

5 0
2 years ago
SAMPLE QUESTION FOR 5 POINTS
Katarina [22]
A is the correct answer that you’re looking for
4 0
2 years ago
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