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Elanso [62]
2 years ago
7

Factorize the following: 49x² - 25​

Mathematics
1 answer:
creativ13 [48]2 years ago
3 0

Answer:

(7x+5)(7x-5)

Step-by-step explanation:

We can use the difference of squares equation which states that when a number is multiplied like: (ax+b)(ax-b) then it equals (ax-b). In this equation, since there is no "b" in the typical ax^2+bx+c, we can recognize that the answer is not a square, but a difference of squares.

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Which questions are statistical questions?
Yanka [14]

Answer:

Which questions are statistical questions?

what is the number of students what is the height of each in my class?

how many servings of fruit did eat each day this month?

what is my height?

what is the highest temprature

of each month this year?

how many students from each school in this city love football?

Step-by-step explanation:

Need to include numerical values

8 0
3 years ago
In the slope-intercept equation of a line, which quantity is given by the coefficient of the x-term? A. The y-intercept of the l
-Dominant- [34]
In any linear equation the coefficient of the x-term represents ALWAYS the slope.

So it is   B. The slope of the line
7 0
3 years ago
Which choices are solutions to the following equations x^2+8x-2=18
Olin [163]

Answer:

-4 ± 2√6

Step-by-step explanation:

Rewritten in standard quadratic form, x^2+8x-2=18 becomes x^2 + 8x - 20 = 0.

Here the quadratic coefficients are a = 1, b = 8 and c = -20 and so the discriminant is b^2 - 4ac, or 8^2 - 4(1)(-20), or 96.

Because the discriminant is positive, we know that this quadratic has two different real roots.  These roots are:

      -b ± √(b² - 4ac)

x = -------------------------

                 2a

which in this case comes out to:

       -8 ± √96          -8 ± 4√6          

x = ------------------ = ------------------- = -4 ± 2√6

             2                        2

4 0
2 years ago
There are 19.3 cups of flour in a bag. The chef uses 2.9 cups for making cookies.
mrs_skeptik [129]

Answer:

10.1 cups left

Hope this helps!

Can you pls give brainly if this helps

7 0
2 years ago
What is special about the factored form of answer N-16x2 - 1?
Ivanshal [37]

Answer:

<em>Both 16 and 1 are squares. This suggests using the formula for the difference of squares. Answer link.</em>

Step-by-step explanation:

Every time you have a difference in the format of

A2−B2 you can factor as (A−B)(A+B).

Then you have to identify if your quantity is the difference of two squared quantities.

It is. In fact we can write it as:

16x2−1=(4x)2−12

Then we can apply our rule

{(4x)}^{2} -    {1}^{2}  = (4x - 1)(4x + 1)

6 0
3 years ago
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