All categories

3 years ago

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

Mathematics

2 answers:

Ksenya-84 [330]3 years ago

7 0

Answer: 19

Step-by-step explanation:

Alexus [3.1K]3 years ago

4 0

answer:

Step-by-step explanation:

3•(3+4)-(3-1)

equall

You might be interested in

Write Three equations that have the same solution as 25x + (-15) = -85<br> Pls answer

Bumek [7]

Answer:

275

Step-by-step explanation:

25x15=375-15=360-85=274

4 0

3 years ago

How do you do this problem? Please explain.

horrorfan [7]

Answer: 8.632

<u>Step-by-step explanation:</u>

First, you need to find the length of AE. Since ΔAEC is a right triangle, we can use:

$sin\ C=\dfrac{AE}{AC}\\\\\\sin\ 50 = \dfrac{AE}{5}\\\\\\5\ sin\ 50=AE\\\\3.83=AE$

Next, Use Heron's formula to find the Area of ΔADE.

AE = 3.83
ED = 6
AD = 9

Heron's formula is:

$A=\sqrt{s(s-a)(s-b)(s-c)}\quad \text{where}\ s = \dfrac{a+b+c}{2}\\\\s=\dfrac{AE+ED+AD}{2}=\dfrac{3.83+6+9}{2}=\dfrac{18.83}{2}=9.415\\\\A=\sqrt{9.415(9.415-3.83)(9.415-6)(9.415-9)}\\\\.\quad=\sqrt{9.415(5.585)(3.415)(0.415)}\\\\.\quad=\sqrt{74.519}\\\\.\quad=8.632$

5 0

3 years ago

Mia's checking account balance is overdrawn by $52.65.

Svetach [21]

Answer:

Step-by-step explanation:

So to start, Mia has an account that is overdrawn by $52.65 so her account is negative 52.65. She then adds 135.50 and used 24.30 so you would add 135.50 and 24.30 respectively. This would be (-52.65) + (132.50) - (24.30). This then would get you $58.55

8 0

3 years ago

If a line has a slope of 3, what is the slope of a perpendicular line?

pashok25 [27]

Answer:

Slope of perpendicular line is -1/3

Step-by-step explanation:

The slope of the given line is 3 and we have to find the slope of the perpendicular line.

We know that the slope of two perpendicular lines are negative reciprocal of each other.

In other words if the slope of the line is m then then slope of the perpendicular line is $-\frac{1}{m}$

The reciprocal of 3 is $\frac{1}{3}$

Hence, negative reciprocal of 3 is $-\frac{1}{3}$

Therefore, the slope of perpendicular line is -1/3

C is the correct option.

6 0

3 years ago

Complete the table for the given rule. Rule: y x/4 (fraction)

Juli2301 [7.4K]

Answer:

16, 8, 36

Step-by-step explanation:

x = 4y

y = 4, x = 16

y = 2, x = 8

y = 9, x = 36

3 0

3 years ago