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crimeas [40]
2 years ago
14

Will mark brainliest on the best answer and also explain how you got that answer.

Mathematics
2 answers:
natulia [17]2 years ago
6 0

Answer:

i think it's about 20 im not 100 percent sure :/

Step-by-step explanation:

murzikaleks [220]2 years ago
5 0

this could be wrong but i got $40.45

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Which direction does the graph of f(x) = −18 + x2 − 3x open?
Mekhanik [1.2K]
Please write this equation as    <span>f(x) = −18 + x^2 − 3x       

Rewrite it in descending order by powers of x:  f(x) = x^2 - 3x - 18

Since the coefficient of the x^2 term is +, the graph opens UP.</span>
7 0
3 years ago
The ratio of length to width (measured in inches) in a rectangle is 4∶7. find the length of the rectangle if the area is known t
Len [333]
Hey mate
here is your answer

length and width are given in the ratio are ;(4:7)
area of rectangle = (l×b)
therefore,
4x×7x=700
28x^2=700
x^2=700/28
x^2=25
x=5
length =4x=4×5=20, lenght =20 and width =7x so, 7×5=35 width.....
8 0
3 years ago
Can someone please help me!
Sindrei [870]

Answer:

The Answer is x=6 2/3

Step-by-step explanation:

The Area of a triangle is A= 1/2 bh, so we should think of the triangle as half of a square/rectangle. This means the total area of the theoritical Square is 400 sq ft. We then figure out this equation:

12 * 5x = 400

400/12 = 5x

80/12 = x which is equal to 6 2/3.

Hope this helps!

5 0
3 years ago
30 mins = how many seconds???
horrorfan [7]
6x3=18 add two zeros and you get 1800 seconds:) hope this helped
8 0
3 years ago
Read 2 more answers
What is the slope?
Lena [83]

Answer:

3/4

Step-by-step explanation:

We need two points to find the slope

( 20,20) and (60,50)

m = (y2-y1)/(x2-x1)

   = (50-20)/(60-20)

   = 30/40

   = 3/4

4 0
3 years ago
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