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katrin [286]
3 years ago
11

4. Determine the following difference. (2x² + 3x - 10) - (x² - x + 111)  please explain

Mathematics
2 answers:
SIZIF [17.4K]3 years ago
8 0
Hi there! The answer is A.

(2x² + 3x - 10) - (x² - x + 111) 
Let's solve this problem step by step!

First work out the parenthesis. Because we multiply by negative 1, we mustn't forget to change the symbols in front of the factors.
2x² + 3x - 10 - x² + x - 111

Now rearrange our expression, in order to collect the terms later.
2x² - x² + x + 3x - 10 - 111

And finally collect the terms.
x² + 4x -121

The answer is A.
~ Hope this helps you!
hjlf3 years ago
6 0
Hi there!

Simplify th' expression :-

(2x² + 3x - 10) - (x² - x + 111)

⇒ 2x² + 3x - 10 - x² + x - 111

⇒ 2x² - x² + 3x + x - 10 - 111

⇒x² + 4x - 121

Hence,
Option A. x² + 4x - 121 is Correct

~ Hope it helps!
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mylen [45]

Answer:

0.85 < 8/9 < 0.92

Step-by-step explanation:

Hope this helps!!

7 0
3 years ago
Read 2 more answers
You spin the spinner once.<br> 6<br> 8<br> 17<br> What is P(prime)?<br> Options: 33% 25% 26% or 36%
SIZIF [17.4K]

Given:

You spin the spinner once.

The possibilities are 6, 8, 17.

To find:

The probability of getting a prime number, i.e., P(prime).

Solution:

In the given numbers 6, 8, 17, only 17 is a prime number because it is divisible by 1 and itself.

6 and 8 are divisible by 2, so they are not prime.

The probability (in %) of getting a prime number is:

P(\text{prime})=\dfrac{\text{Prime numbers}}{\text{Total numbers}}\times 100

P(\text{prime})=\dfrac{1}{3}\times 100

P(\text{prime})=33.33\%

P(\text{prime})\approx 33\%

Therefore, the correct option is A.

6 0
3 years ago
Can someone please help me with this? I don't really understand it and I would really appreciate if you can show me step by step
7nadin3 [17]

Answer:

225

I used

www.symbolab.com

to help me solve this

3 0
3 years ago
Math help please! - ( 2/5 )
Likurg_2 [28]

Answer:

D

Step-by-step explanation:

it is D because you always want x to be a lone fraction and that would be the first step im 99% sure unless someone can correct me :)

4 0
4 years ago
Read 2 more answers
The equation of line p is y = x − 1 .
NeX [460]

Answer:

Step-by-step explanation:

The equation of a straight line can be represented in the slope intercept form as

y = mx + c

Where

m = slope = (change in the value of y in the y axis) / (change in the value of x in the x axis)

The equation of the given line p is

y = x - 1

Comparing with the slope intercept form, slope = 1

If two lines are parallel, it means that they have the same slope. Therefore, the slope of line q passing through (- 2, 8) is 1

To determine the y intercept, we would substitute m = 1, x = - 2 and

y = 8 into y = mx + c. It becomes

8 = 1 × - 2 + c

8 = - 2 + c

c = 8 + 2 = 10

The equation becomes

y = x + 10

6 0
4 years ago
Read 2 more answers
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