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3 years ago

Solve for x 4 + 2.1x = 22.9

Mathematics

1 answer:

mamaluj [8]3 years ago

5 0

The answer is x=9.
Hope this helps!

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Please help thanksss

expeople1 [14]

Answer: y = - $\frac{2}{3}$ x - 6

Step-by-step explanation:

The line crosses the y intercept at y = -6

The slope of the graph looks negative, as it extends from the top left quadrant to the bottom right quadrant.

A key trick is to use rise/run to figure out the slope:

Between each dot on the line, it rises 2 and runs -3 (negative because the direction is left).

So your equation would be: y = - $\frac{2}{3}$ x - 6

7 0

4 years ago

Solve for x: x + 4.5 = -17.75 Please help!

DiKsa [7]

X= -22.25. You subtract the 4.5 so the x can by it self

3 0

4 years ago

Read 2 more answers

1 Which of the following could be the sides of a right triangle? Check all that apply. A. 10, 24, 26 B. 4, 5, 9 C. 18, 24, 30

kompoz [17]

Answer:

A and C

Step-by-step explanation:

Let Triangle ABC is a right angle traingle.

From Option A

AB= 24, BC= 26 and AC=10

By Pythagorean Triplet

(AB)^2 + (AC)^2 = (24)^2 + (10)^2

= 576+100

(AB)^2 + (AC)^2 = 676 ---------------- (I)

(BC)^2 = 26^2 = 676 -------------------(ii)

From (I) and (ii)

(BC)^2 = (AB)^2 + (AC)^2

Therefore, the sides 10,24 and 26 are the sides of the right angle triangle.

From Option C

AB= 18, BC= 30 and AC=24

By Pythagorean Triplet

(AB)^2 + (AC)^2 = (18)^2 + (24)^2

= 324+576

(AB)^2 + (AC)^2 = 900---------------- (I)

(BC)^2 = 30^2 = 900 -------------------(ii)

From (I) and (ii)

(BC)^2 = (AB)^2 + (AC)^2

Therefore, the sides 18, 24 and 30 are the sides of the right angle triangle.

3 0

3 years ago

Help Please solve this picture

Drupady [299]

6y = (x - 4)² + 34/3

6x = (y - 4)² + 34/3

(y - 4)² = 6x - 34/3

y - 4 = √(6x - 34/3)

y = 4 +- √(6x - 34/3)

8 0

4 years ago

What is the rate of change and initial value for the linear relation that includes the points shown in the table?

Wittaler [7]

Answer:

Initial value $12$ , rate of change: $-2$

Step-by-step explanation:

Step 1

Find the rate of change

we know that

In a linear equation the rate of change is equal to the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have

$A(1,10)\ B(2,8)$

Substitute the values

$m=\frac{8-10}{2-1}$

$m=-2$ ----> rate of change

Step 2

Find the initial value

The equation of the line into slope-point form is equal to

$y-y1=m(x-x1)$

Substitute

$y-10=-2(x-1)$

$y=-2x+2+10$ $y=-2x+12$

The initial value is the value of y when the value of x is equal to zero (is the y-intercept)

$y=-2*0+12=12$ ----> initial value

7 0

3 years ago

Read 2 more answers