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3 years ago

How to graph 2x+3y=6

Mathematics

1 answer:

Kay [80]3 years ago

5 0

Answer:

Step-by-step explanation:

First, isolate the y variable

3y = -2x +6

3y/3 = -2/3x + 6/3

y = -2/3x +2

Use the formula y=mx+b to graph.

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If c(x)=4x-2 and d(x)=x^2+5 , what is (c o d) (x)

Nookie1986 [14]

Answer:

4x² + 18

Step-by-step explanation:

note that (c ○ d )(x) = c(d(x))

To evaluate substitute x = d(x) into c(x), that is

c(d(x))

= c(x² + 5)

= 4(x² + 5) - 2

= 4x² + 20 - 2

= 4x² + 18

3 0

2 years ago

The cross-sectional areas of a right pyramid and a right cylinder are congruent. The pyramid has a height of five units, and a r

Mazyrski [523]

Answer:

the volume of the right cylinder is 1.8 times the volume of the pyramid

Step-by-step explanation:

The volume of a pyramid is

$V = \dfrac{1}{3} \times B\times H$

where the height of the pyramid is 5

$V = \dfrac{1}{3} \times B\times 5$

$V = \dfrac{5}{3} B \ units ^3$

On the other hand, the volume of a right cylinder is

V = BH

where the height of the right cylinder = 3 units

V = 3 B units³

Since we know that the cross-sectional areas are congruent, comparing the two-volume, we have the ratio of their volumes to be:

$\dfrac{V_p}{V_c}= \dfrac{\dfrac{5}{3}B}{3B}$

$\dfrac{V_p}{V_c}= \dfrac{5}{9}$

$9 V_p = 5 V_c$

$V_c = 1.8 \ V_p$

Hence, the volume of the right cylinder is 1.8 times the volume of the pyramid

6 0

2 years ago

The population of a city increases by 2.2% per year. If this year's population is 230,000, what will next year's population be,

ahrayia [7]

Answer:

235,060

Step-by-step explanation:

The step by step explanation is in the picture attached to this answer below!

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Thank You!

Answered by: ms115

#learnwithbrainly

4 0

2 years ago

Find the radius. Round to the nearest tenth.

Arlecino [84]

Answer:

Step-by-step explanation:

V = 1/3 * pi * r^2 * h

r = ?

pi = 3.14

h = 17 cm

3*V = pi * r^2 h = r^2 Divide by pi

3*V/pi = r^2 h = r^2 Divide by h

3*V/(pi*h) =r^2 Take the square root of the left to get just r

sqrt(3*V/(pi*h)) = r Now solve the equation.

sqrt(3*538.25 /(3.14*17)) = r

sqrt(1614 / 53.38) =

r = sqrt(30.24)

r = 5.493

6 0

1 year ago

Between which two ordered pairs does the graph of f(x) = x2 + x – 9 cross the negative x-axis? Quadratic formula: x =

katrin2010 [14]

(-6,0) and (-5,0) I got it right

8 0

2 years ago

Read 2 more answers