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Aloiza [94]
3 years ago
10

PLEASE HELP AND ANSWER BOTH QUESTIONS

Mathematics
2 answers:
kati45 [8]3 years ago
5 0
1.)    16k^2 + 56kj + 49j^2


2.) 4y^2 - 36xy + 81x^2
nydimaria [60]3 years ago
3 0
D is your answer

Expand and do FOIL method (first outside inside last)
simplify and then choose right answer

A is your answer

Do the same thing

hope this helps
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Sahil has a fish tank in the shape of a cuboid, as shown in the diagram
aliina [53]

Answer:

12

bcz he can't put a 0.725 fish so it will be rounded up back to 12

4 0
2 years ago
The sum of two consecutive integers is 131. What are the integers?
Dahasolnce [82]
X, x+1
x+x+1=131
2x+1=131
2x=131-1=130
x=130÷2 = 65
the integers are 65 and 66
3 0
3 years ago
Solve the equation. 7+3lnx=20
siniylev [52]

Answer:

Simplifying

7 + 3lnx = 15

Solving

7 + 3lnx = 15

Solving for variable 'l'.

Move all terms containing l to the left, all other terms to the right.

Add '-7' to each side of the equation.

7 + -7 + 3lnx = 15 + -7

Combine like terms: 7 + -7 = 0

0 + 3lnx = 15 + -7

3lnx = 15 + -7

Combine like terms: 15 + -7 = 8

3lnx = 8

Divide each side by '3nx'.

l = 2.666666667n-1x-1

Simplifying

l = 2.666666667n-1x-1

5 0
3 years ago
Read 2 more answers
george is building a fence at a consent rate of 1/3 section of fence every 1/2 hour at the rate. what fraction represents the se
valina [46]
George, after 1 hour, Should have 2/3 section of fence done. Since there is 30 minutes 1/2 an hour, And he is doing 1/3 every 30 minutes. You must add 1/3 and 1/3 to get an hours worth of work
6 0
2 years ago
Write an equation of a line that passes through 2,0 and is the perpendicular to the line y=-1/2x +3
AURORKA [14]

9514 1404 393

Answer:

  y = 2x -4

Step-by-step explanation:

The coefficient of x in the given equation is the slope of the line. A perpendicular line will have a slope that is the opposite reciprocal:

  -1/(-1/2) = 2

The point-slope form of the equation of a line can be used to find the desired equation:

  y -y1 = m(x -x1) . . . . . . line through (x1, y1) with slope m

For (x1, y1) = (2, 0) and m = 2, the equation is ...

  y -0 = 2(x -20

  y = 2x -4

8 0
2 years ago
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