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Sergio [31]
3 years ago
12

Easy points of you answer this ! So help me out

Mathematics
2 answers:
BabaBlast [244]3 years ago
6 0

The answer is going to be 200 because the real answer would be 216.84

Firdavs [7]3 years ago
5 0

Answer:

200

Step-by-step explanation:

2,819 rounds up to 3,000

13 rounds up to 15

3,000/15 = 200

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Please help me, I am completely lost...
charle [14.2K]
5 is the answer, you are welcome.
8 0
3 years ago
Solve 2x2 + x − 4 = 0.<br><br><br> x^2 + ____x+____ = 0
alisha [4.7K]

Kate: Please, for clarity, use " ^ " to denote exponentiation: 2x^2 + x − 4 = 0


And please include the instructions.


2x^2 + x − 4 = 0 can be re-written: 2(x^2 + (1/2)x - 2) = 0


Dividing both sides by 2 results in x^2 + (1/2)x - 2 = 0


Let's "complete the square:" x^2 + (1/2)x + (1/4)^2 - (1/4)^2 = 0


Then (x+(1/4))^2 = (1/4)^2


Taking the sqrt of both sides: x+1/4 = plus or minus 1/4


Solving for x: x = -1/4 plus or minus 1/4


Solving for x (continued): x = 0 and x = -1/2

3 0
3 years ago
Read 2 more answers
If cosa=1/2(a+1/a), verify that. cos2a=1/2(a²+1/a²)​
Alborosie

Answer:

see explanation

Step-by-step explanation:

using the identity

cos2a = 2cos²a - 1 , then

cos2a

= 2[ \frac{1}{2}(a  + \frac{1}{a}) ]² - 1

= 2 [ \frac{1}{4} (a² + \frac{1}{a^2} + 2) ] - 1

= \frac{1}{2} (a² + \frac{1}{a^2} ) + 1 - 1

= \frac{1}{2} (a² + \frac{1}{a^2} ) ← thus verified

3 0
1 year ago
Which of the following are characteristics of the graph of the absolute value parent function?
lora16 [44]

The graph of an absolute value parent function is a pair of rays in quadrant 1 & 2, as shown in the graph.

The absolute value function is

f(x) = |x| or y = |x|

We also know that the absolute function can be wriiten as

y = |x|

=> y = x    or   y = -x

Comparing with y = mx + c

We get

m = 1   or   m=-1    and c = 0

c = 0 implies that the line passes through the origin.

Hence the slopes shall be -1, 1 & the line passes through the origin.

Option A, B & D are the right answers.

7 0
3 years ago
Read 2 more answers
For what x value(s) does f(x) = 4?
k0ka [10]

Answer:

1,2

Step-by-step explanation:

f(x) always equals y. So basically, y = 4. The only factor that goes into 4 is 2, because 2 x 2 equals 4, and always 4 x 1 will equal 4.

6 0
3 years ago
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