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SVEN [57.7K]
4 years ago
5

Fraction equivalents 7/15 = ?/45

Mathematics
1 answer:
Neporo4naja [7]4 years ago
7 0

Answer:

21/45

Step-by-step explanation:

please give me brainliest i just need 4 more

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−4x+7y+5=0
timofeeve [1]
I think the answer is (10,5) 
4 0
4 years ago
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An amusement park has 11 roller coasters. In how many ways can you choose 4 of the roller coasters to ride during your visit to
Vadim26 [7]
4!=4*3*2*1=24
11!=11*10*9*8*7*6*5*4*3*2*1=39916800
7!=7*6*5*4*3*2*1=5040
n choose k
how many ways are there to choose k rollercoasters from n choices?

\left(\begin{array}{ccc}n\\k\end{array}\right)=\frac{n!}{k!(n-k)!}

\left(\begin{array}{ccc}11\\4\end{array}\right)=\frac{11!}{4!(11-4)!}=\frac{39916800}{24(7)!}=\frac{39916800}{24(5040)}=\frac{39916800}{120960}=330



330 ways






6 0
4 years ago
Find AB, that’s all the details I have on it
Flauer [41]

Answer:

AB = 15

Step-by-step explanation:

Since AD and DC are congruent point D lies on the axis of AC

the axis of a segment divides it in two congruent segments, so AB congruent to BC

5x = 4x + 3

x = 3

AB = 5 * 3 = 15

6 0
3 years ago
Please help asap!!!! 53 points!
AfilCa [17]
The easiest way is to graph it based upon the slope (m) and y-intercept (b), in the standard slope-intercept form: y = m (x) + b.
The line above intercepts the y-axis at y = -2, which is b. The slope (m) = rise/run = (y2-y1)/(x2-x1 ); so for the point (-4, 2) to (-6, 4) is:
(4-2)/(-6--4) = 2/(-6+4) = 2/-2 = -1.
So one form of the equation would be:
y = -1x - 2
Now the other form of an equation is point-slope: y-k = m (x-h), where the point is at (h, k)
and if we pick -5 for x (bc 5 it listed in 3 of the answers), the y at x=-5 looks like around +3
so we get: y-k = -1 (x--5)...
y-3 = -(x+5)... therefore D) is the correct answer:
8 0
4 years ago
Read 2 more answers
Evaluate the expression -3x divided y<br> if x = 10 and y = -3.5
Mumz [18]
The equation is -3x/y
Plug in the numbers given for x and y
-3(10)/-3.5
-30/-3.5
divide and that's your answer
4 0
3 years ago
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