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3 years ago

Which equation is a linear function?

Mathematics

1 answer:

Dovator [93]3 years ago

3 0

X/2 -5 is the only linear function

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HELP!!<br>Find the third term of (x^2+3y)^3

lana66690 [7]

Answer:

$T_{3}=27{x}^{2}y^2$

Step-by-step explanation:

The given binomial expression is:

$( {x}^{2} + 3y)^{3}$

When we compare to:

${(a +b)}^{n}$

We have

$a = {x}^{2}$

$b = 3y \\ n = 3$

The nth term is given by;

$T_{r+1}=^nC_ra^{n-r}b^r$

To find the 3rd term, we put:

$r + 1 = 3 \\ r = 2$

We substitute into the formula to get:

$T_{3}=^3C_2( {x}^{2} )^{3-2}(3y)^2$

We simply:

$T_{3}=3( {x}^{2} )^{1} \times 9y^2$

$T_{3}=27{x}^{2}y^2$

3 0

3 years ago

ATB is a tangent to the circle centre O. Find the values of x y and z in each case.

Triss [41]

Answer:

Step-by-step explanation:

divde then add 67b

then complete

7 0

3 years ago

Sam is an accountant. He finds that he spends two-fifths of his work day answering emails. If he kept 3.6 hours answering emails

Yanka [14]

Divide it into one piece so 3.6 / 2 = 1.8 then times that by the number of pieces you want so 3.6 / 2 * 5 = 9

3 0

3 years ago

Read 2 more answers

Solve for x: 7-3x=-2/5x-69/5

san4es73 [151]

Answer:

x = 8

Step-by-step explanation:

Step 1: Simplify both sides.

7 - 3x = -2/5x - 69/5

7 + - 3x = -2/5x + -69/5

-3x + 7 = -2/5x + -69/5

Step 2: Add 2/5x to both sides.

-3x + 7 + 2/5x = -2/5x + -69/5 + 2/5x

-13/5x + 7 = -69/5

Step 3: Subtract 7 from both sides.

-13/5x + 7 - 7 = -69/5 - 7

-13/5x = -104/5

Step 4: Multiply both sides by 5/(-13)

(5/-13) * (-13/5x) = (5/-13) * (-104/5)

x=8

8 0

4 years ago

13. Solve for y: 39x – 3y = 21

Agata [3.3K]

39x-3y=21
-3y=21-39x
(subtract both sides of the equation by 39x and divide both sides by -3)
y=-7+3x : would be the equation for y.

3 0

3 years ago