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2 years ago

Make l the subject of formula when a=lb

Mathematics

1 answer:

mixas84 [53]2 years ago

6 0

Answer:

l = $\frac{a}{b}$

Step-by-step explanation:

a = lb ( isolate l by dividing both sides by b )

$\frac{a}{b}$ = l

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X = 1 and y = -3 satisfy x - 2y = 5 True or false

hoa [83]

Answer:

false

Step-by-step explanation:

Step :1

Given x- 2 y =5 .......(1)

put x=1 and y= -3 on left hand side of given equation

1 - 2 (-3) = 5

1 + 6 = 5

7 ≠ 5

both sides are not equal

so it is false

5 0

4 years ago

Read 2 more answers

If f.) = 2x2 + 1, what is f(x) when x = 3?

Dafna1 [17]

Answer:

Step-by-step explanation:

f(x) = 2x^2 +1

Let x =3

f(3) = 2 (3)^2 +1

= 2 *9 +1

= 18 +1

= 19

5 0

4 years ago

write the equation of the line in standard form that passes through the origin and is parallel to x + y equals 6

horsena [70]

Answer: $x+y=0$

Step-by-step explanation:

The equation of the line slope-intercept form is:

$y=mx+b$

Where m is the slope and b is the y-interecept.

The standard form is:

$Ax+By=C$

You know that must be parallel to $x+y=6$ , therefore both have the same slope. So you must solve for y:

$y=-x+6$

Substitute the slope m=-1. Since the line passes through the origin b=0:

$y=-x$

Then in standar form is:

$x+y=0$

5 0

4 years ago

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Evaluate the function for x = 2: f(x)=7x-5

valentinak56 [21]

Replace x = 2 into f(x)=7x-5

 f(2)=7(2)-5 = 14 -5 = 9

answer is A. 9

7 0

3 years ago

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: Write the equation of the line in Point-Slope Form given the information below. Slope=-2 Point=(1,-1)

natulia [17]

Answer: y+1=-2(x-1)

Step-by-step explanation:

The point-slope formula is $y-y_{1}=m(x-x_{1})$ . Since we know the coordinate and slope, we can directly plug them in.

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

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

6 0

3 years ago