All categories

3 years ago

1. -4x + 5 = 13

Mathematics

2 answers:

zaharov [31]3 years ago

7 0

You can download the app Symbolab that’s is gonna help a lot

olga2289 [7]3 years ago

3 0

Answer:

1.) x = -2 2.) x = -4 3.) x = -3 4.) x = 2 5.) x=2

Step-by-step explanation:

1. Subtract 5 from both sides.

-4x=13-5

Simplify 13 - 5 to 8

-4x = 8

Divide both sides by -4

x=-8/4

Simplify 8/4 to 2

x= -2

2. Subtract 4 from both sides.

-2x=12-4

Simplify 12-4 to 8.

-2x=8

Divide both sides by −2.

x= -8/2

Simplify 8/2 to 4.

x=-4

3.Regroup terms.

2-x=5

Subtract 2 from both sides.

-x=5-2

Simplify 5-2 to 3.

-x=3

Multiply both sides by −1.

x=-3

4.Subtract 4 from both sides.

x=6-4

Simplify 6-4 to 2.

x=2

5.Subtract 3 from both sides.

11-3=4x

Simplify 11-3 to 8.

8=4x

Divide both sides by 4.

8/4=x

Simplify 8/4 to 2.

2=x

Switch sides.

x=2

You might be interested in

PLEASE HELP ME WITH THANKS :)

Maurinko [17]

Answer

12855.04 ft³

Step-by-step explanation:

regular Octagon consists of 8 congruent triangles

B = (13.28 x 11) / 2 x 8=584.32

V = BH = 584.32 x 22 = 12855.04

8 0

3 years ago

Read 2 more answers

What does y equal in this algebraic equation? (grade 7) 24y+(42-6)=8

IgorC [24]

Answer:

y equals -1.16 (repeating decimal)

Step-by-step explanation:

I got the answer by first solving what is in the parentheses. 42-6=36. After this, I subtracted 36 on both sides to get the variable (y) by itself. After I did this, I had 24y = -28. So, I divided both sides by 24 (24y). The y was left by itself and -28/24=1.16 (repeating decimal).

Therefore, y=1.16,1.17 when rounded, or -7/6 as a fraction

6 0

3 years ago

Find an equation of the plane that contains (3, 4, −9) and is parallel to x + y − 5z = 1. (Use x, y, and z for coordinates.)

emmainna [20.7K]

Answer:

x + y - 5z = 52

Step-by-step explanation:

Given data:

Point on the plane (3,4,-9)

parallel to x + y -5z = 1

Finding the normal vector

(1 , 1 , -5)(x, y , z) = 1

the normal vector is (1 , 1 , -5)

formula for finding equation the plane given the normal vector (a,b,c) and point (m,n,o) is as

a(x - m) + b(y - n) + c(z-o)=0

Substituting the data we have

1(x-3) + 1( y- 4) - 5(z+9) =0

x-3 +y -4 -5z -45 = 0

x + y - 5z = 45 +4 +3

x + y - 5z = 52

6 0

3 years ago

8) За (x-y) - (х-у)

mel-nik [20]

Answer:

$3a \times x - y - x - y \\ 3a \times x - x - y - y \\ 3a \times - 2y - \\ - 6ay$

6 0

4 years ago

A tire manufacturer has a 60,000 mile warranty for tread life. The manufacturer considers the overall tire quality to be accepta

Dominik [7]

Answer:

Fail to reject H₀

Step-by-step explanation:

To reject the null hypothesis, the P-value must be less than 0.05.

Since the P-value is 0.15 which is greater than 0.05, we would fail to reject the null hypothesis as there is no sufficient evidence against the null hypothesis.

Thus, the conclusion would be to fail to reject H₀.

7 0

3 years ago