All categories

2 years ago

Please answer this question

Mathematics

1 answer:

Vinil7 [7]2 years ago

4 0

5. yes

6. yes

7. no

8. no

You might be interested in

5(-3x - 2) - (x - 3) = -4 (4x +5) + 13

S_A_V [24]

Start off by distributing the numbers into the parentheses:

5(-3x - 2) - (x - 3) = -4(4x + 5) + 13
-15x - 10 - (x - 3) = -16x - 20 + 13

(Note: It's super important to be careful when opening up negative parentheses! -(x-3) is not just - x - 3, it is actually -x + 3 since the negative is distributed in every number!)

-15x - 10 - x + 3 = -16x - 20 + 13
-16x - 7 = -16x - 7
-16x = -16x
0 = 0

There is an infinite number of solutions in this equation.

(When you get 0=0 when solving for a variable, that means that said variable will have infinite solutions, that is, any number plugged into the equation will work)

4 0

2 years ago

Read 2 more answers

Please solve, I have more of these to solve

earnstyle [38]

Answer:

I am trying to do the same it's so HARD

6 0

3 years ago

xz_007 [3.2K]

Answer:

1) $n = 84$

2) $n = 78$

3) $n = 24$

4) $n = 16$

5) $n = 35$

Step-by-step explanation:

To solve each proportion, we apply cross multiplication.

Question 1:

$\frac{5}{12} = \frac{35}{n}$

$5n = 35*12$

Simplifying both sides by 5

$n = 7*12 = 84$

Question 2:

$\frac{n}{52} = \frac{180}{120}$

$120n = 52*180$

Simplifying both sides by 20

$6n = 52*9$

Simplifying by 3

$2n = 52*3$

Simplifying by 2

$n = 26*3 = 78$

Question 3:

$\frac{18}{n} = \frac{21}{28}$

$21n = 18*28$

Simplifying both sides by 7

$3n = 18*4$

Simplifying both sides by 3

$n = 6*4 = 24$

Question 4:

$\frac{n}{4} = \frac{24}{6}$

$\frac{n}{4} = 4$

$n = 16$

Question 5:

$\frac{10}{16} = \frac{n}{56}$

$16n = 56*10$

Simplifying by 2, both sides

$8n = 56*5$

Simplifying by 8, both sides

$n = 7*5 = 35$

4 0

3 years ago

Help me asap .... will crown brainiest !

Makovka662 [10]

Answer:

B of course you dummy

Step-by-step explanation:

4 0

2 years ago

Solve by completing the square -x^2+8x-6=0

Svetllana [295]

-x² + 8x - 6 = 0
x = -(8) +/- √((8)² - 4(-1)(-6))
 2(-1)
x = -8 +/- √(64 - 20)
 -2
x = -8 +/- √(44)
 -2
x = -8 +/- 2√(11)
 -2
x = -8 + 2√(11) x = -8 - 2√(11)
 -2 -2
x = 4 - √(11) x = -8 + √(11)

6 0

3 years ago