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3 years ago

How do i graph x–3y=–9 2x–3y=–6

1 answer:

8 0

Right now the equations are in standard form, which is ax+by=c. You need to put them in the form y=x and then divide the equations by 3 since y itself is being multiplied by 3. And then graph them as you normally would

Hope this helps!

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The perimeter of a rectangular toddler play area is 100 feet. The length is 10 feet more than 3 times the width. Find the length

Mekhanik [1.2K]

Answer:

length and width = 40 and 10 ft.

Step-by-step explanation:

The perimeter of a rectangular toddler play area is 100 feet.

Perimeter = 2(length + width)

Let the width = w

The length is 10 feet more than 3 times the width. Length = 10+(3w)

now put the values

100 = 2(10+3w + w)

100 = 2w + 20 + 6w

100 = (2w + 6w) + 20

100 = 8w + 20

8w = 100 - 20

w = $\frac{80}{8}$

w = 10 feet.

Now Length = 10+ (3w)

= 10+( 3 × 10)

= 10 + 30

= 40 feet

Therefore, length = 40 feet and width = 10 feet

8 0

3 years ago

Find the vertex of the function h(x) = x2 – 4x – 21

lakkis [162]

Answer: (2, -25)

Step-by-step explanation:

The x coordinate of the vertex is $x=-\frac{-4}{2(1)}=2$ .

When x=2, $h(2)=2^2 - 4(2)-21=-25$ .

So, the vertex is (2, -25).

7 0

1 year ago

Carlos walked to school on 14 of the 20 school days in February. Which value is equivalent to the fraction of the school days in

Alinara [238K]

Answer:

Which of the following questions allows for variability?

How many students visited the nurse on Monday, September 15, 2014, at your school?

How many free throws can a person make in one minute?

How much money do doctors earn per year?

How tall are the players on the Harlem Globetrotters?

Step-by-step explanation:

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8 0

2 years ago

Stephen says that the numbers 38 and 40 are relatively prime. Explain why he is incorrect in making this statement. (make a good

Paha777 [63]

Answer:

He is incorrect in this statement because 38 and 40 both have factors, other than 1 x itself. Prime numbers are numbers the only have 1 factor pair, and that is 1 x itself. Factors are the numbers you multiply to get the end result, and an example is 10x4=40. The factors of 40 are 8x5, 4x10, 2x20, and of course, 1x40. The factors of 38 are 2x19, and 1x38.

8 0

3 years ago

What is the slope of line LM given L(9, -2) and M(3, -5)?

jasenka [17]

Answer:

1/2

Step-by-step explanation:

(y2-y1)/(x2-x1) is the equation for finding slope with two given points

-5-(-2) over 3-9 equals

-3/-6=-1/-2=1/2

7 0

3 years ago