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nevsk [136]
3 years ago
5

Explain how you can use a 10 by 10 grid to model 42%

Mathematics
1 answer:
tia_tia [17]3 years ago
4 0

a 10-by-10 grid means there are 100 squares and percent is out of 100 so if you have 42% then you just need to fill in 42 squares

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An ice cream factory makes 68.8 quarts of ice cream
yaroslaw [1]
ANSWER: 68.8 quarts is 19.7 gallons

Is that what you were asking? :)
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3 years ago
A family visits a car show to research information on vehicles they might consider purchasing. Brochures for each vehicle provid
Paladinen [302]

Answer:

Its Number of Seats

Step-by-step explanation:

4 0
2 years ago
What is the point-slope form of a line that has a slope of –4 and passes through point (–3, 1)?
ivolga24 [154]

Answer:

y-1= -4(x-(-3))

y minus 1 = negative 4 left-bracket x minus (negative 3) right-bracket

Step-by-step explanation:

The formula for point slope form is written: y-y_{1} = m(x-x_{1}). Now we fill in our know information. m=-4 (because that is the slope), y_{1}=1 (It is the y value in the ordered pair), x_{1}= -3 (It is the x value in the ordered pair).

y-1=-4(x- (-3))

4 0
3 years ago
Type the correct answer in each box
Luba_88 [7]

Answer:

We know that the equation of the circle in standard form is equal to <em>(x-h)² + (y-k)² = r²</em> where (h,k) is the center of the circle and r is the radius of the circle.

We have x² + y² + 8x + 22y + 37 = 0, let's get to the standard form :

1 - We first group terms with the same variable :

(x²+8x) + (y²+22y) + 37 = 0

2 - We then move the constant to the opposite side of the equation (don't forget to change the sign !)

(x²+8x) + (y²+22y) = - 37

3 - Do you recall the quadratic identities ? (a+b)² = a² + 2ab + b². Now that's what we are trying to find. We call this process <u><em>"completing the square"</em></u>.

x²+8x = (x²+8x + 4²) - 4² = (x+4)² - 4²

y²+22y = (y²+22y+11²)-11² = (y+11)²-11²

4 - We plug the new values inside our equation :

(x+4)² - 4² + (y+22)² - 11² = -37

(x+4)² + (y+22)² = -37+4²+11²

(x+4)²+(y+22)² = 100

5 - We re-write in standard form :

(x-(-4)²)² + (y - (-22))² = 10²

And now it is easy to identify h and k, h = -4 and k = - 22 and the radius r equal 10. You can now complete the sentence :)

5 0
3 years ago
Two equations are given below:
goldenfox [79]
Since the second equation gives a value for a, we can substitute it into the other equation to find a value for B.

Let's substitute b-2 into the first equation wherever there is an a.

a - 3b = 4
(b-2) - 3b = 4
b - 2 - 3b = 4
-2 - 2b = 4
-2b = 6
b = -3

Now let's find a by substituting -3 into either of the equations to find the value of a.

a = b - 2
a = -3 - 2
a = -5

So your solution set  is (-5, -3)
4 0
3 years ago
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