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SCORPION-xisa [38]
3 years ago
12

Express (root 19 - root 7)(root 19 + root 7) in simplest form.

Mathematics
2 answers:
r-ruslan [8.4K]3 years ago
7 0

Answer

root 354

Step-by-step explanation:

Svetllana [295]3 years ago
3 0

Answer:

12

Step-by-step explanation:

(√19 -√7)(√19 +√7)

( a +b)( a -b) = a²-b²

(√19)² -(√7)² = 19 -7 = 12

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Pls help asap I will give brainerlist plus 25 points
kirza4 [7]

PEMDAS - Parenthesis, Exponents, Multiplication, Division, Addition, and Subtraction

First, we do the exponents.

5² - 4 · 6 + 11

= 25 - 4 · 6 + 11

Next, multiplication (according to PEMDAS).

= 25 - 24 + 11

Although PEMDAS says addition then do subtraction, please note that this is totally interchangeable. For the sake of this problem, subtraction will be done first.

= 25 - 24 + 11

= 1 + 11

Finally, addition.

= 12

This is your answer. Happy studying~

6 0
2 years ago
Read 2 more answers
Pls help
Nimfa-mama [501]
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5 0
2 years ago
W<br> Given that m + 3n: m +9n<br> 2:5.<br> Write an equation in terms of m and n<br> m=
alexira [117]

Answer:

m=1.5

Step-by-step explanation:

simultaneously

   3m+9n=6

 - m+9n=3

2m=3

m=1.5

3 0
3 years ago
The coach pays $72 for 18 hamburgers. What is the cost per hamburger? What math concept do you use to solve the problem?
Talja [164]

Answer:4

Step-by-step explanation:

you divide 72 by 18.

5 0
3 years ago
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Which of the following is a point-slope equation of a line that passes through
Natasha_Volkova [10]

Answer:

y - 4 = -2/3 (x + 1)

Step-by-step explanation:

y2 - y1 / x2 - x1         -2 - 4 / 8 - (-1)      -6/9     = -2/3

y - 4 = -2/3 (x + 1)

7 0
2 years ago
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