All categories

2 years ago

What is the factored form of the expression 144x2 - 49?

Mathematics

2 answers:

PIT_PIT [208]2 years ago

6 0

Answer:

Step-by-step explanation:

Difference of squares: (a^2 - b^2) = (a - b)(a + b)

(144x^2 - 49) = (12x - 7) (12x + 7)

Nutka1998 [239]2 years ago

6 0

Answer:

A. (12x - 7) (12x + 7)

Step-by-step explanation:

144x^2 - 49

Rewriting

(12x)^2 - 7^2

Recognizing this is the difference of squares

a^2 - b^2 = ( a-b) (a+b)

( 12x-7) (12x+7)

You might be interested in

In a recent survey of 1002 people, 701 said that they voted in a recent presidential election. Voting records show that 61% of e

steposvetlana [31]

Answer:

The 95% confidence interval estimate of the proportion of people who say that they voted

(0.67122 , 0.72798)

Step-by-step explanation:

Step(i):-

In a recent survey of 1002 people, 701 said that they voted in a recent presidential election.

Sample proportion

$p = \frac{x}{n} = \frac{701}{1002} = 0.6996$

Step(ii)

The 95% confidence interval estimate of the proportion of people who say that they voted

$(p^{-} - Z_{0.05} \sqrt{\frac{p(1-p)}{n} } , p^{-} + Z_{0.05} \sqrt{\frac{p(1-p)}{n} } )$

$(0.6996 - 1.96\sqrt{\frac{0.6996(1-0.6996)}{1002} } , 0.6996 + 1.96 \sqrt{\frac{0.6996(1-0.6996)}{1002} } )$

(0.6996 - 1.96 X 0.01448 , 0.6996 + 1.96 X 0.01448)

(0.6996 - 0.02838 , 0.6996 + 0.02838)

(0.67122 , 0.72798)

Final answer:-

The 95% confidence interval estimate of the proportion of people who say that they voted

(0.67122 , 0.72798)

7 0

2 years ago

PLEASE EXPLAIN HOW TO DO THIS PROBLEM

jarptica [38.1K]

Answer:

y=1/3x + 2

Step-by-step explanation:

the y intercept is 2, and the second point goes up 1 over 3

rise over run

4 0

3 years ago

Read 2 more answers

Dersan went for a run to prepare for a long distance race coming up. From his house, he ran 6 miles directly north, and then 8 m

ella [17]

Answer:

Step-by-step explanation:

So, Dersan's path is a right triangle. You have to find the last side. You can use the triples or 6^2+8^2=c^2 but I'll use a triple.

3,4,5.

The last side is 10.

6+8+10=24

hope this helped!

3 0

2 years ago

Find the output , h , when the input , x , is -18 h= 17+x/6

pantera1 [17]

Once you plug in -18 as x you divide it with 6 and the answer of that is -3 then you add 17 and -3 and your output will be 14!

3 0

3 years ago

Please help!! Choose the equation below that represents the line passing through the point (−5, 1) with a slope of 3/2

alina1380 [7]

Or on algebraic expression y= 3/2x+ 17/2

7 0

3 years ago