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MakcuM [25]
3 years ago
13

2×x×3×y

\times 3 \times y" alt="2 \times x \times 3 \times y" align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
Zigmanuir [339]3 years ago
7 0

Answer:

6xy

Step-by-step explanation:

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How can you tell if a point is a solution to a system of equations?
Anna35 [415]

Answer: you have to substitute them into the equation

Step-by-step explanation:

example: x = 2y - 6

lets say you test 4/5 so it would be 4 = 2(5) - 6

this equals 4 = 10 - 6 which is true

so that is how you test to see if the equation is right

remember the first number goes to "x" and the second one goes to y

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3 0
3 years ago
Is 10(x-2)=5(2x-4) infinitely many or no solution
Pani-rosa [81]
They cancel out, so you can decide from this 10x-20=10x-20. 
Hope this answer will help!
5 0
3 years ago
Find the value of x
Bingel [31]

Answer:

x = 14°

Step-by-step explanation:

here we can see ( 6x + 5 ) is parallel to 89°, has same angle.

6x + 5 = 89 .............. as they are similar

6x = 89° - 5°

6x = 84°

x  = 84 / 6

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4 0
2 years ago
12 hundreds+8 tens+7 ones
svp [43]
12 hundreds+8 tens+7 ones =
12*100 + 8*10 + 7*1 = 
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1287  ← answer
7 0
3 years ago
Rubi tosses a quarter off the Main Street bridge into the St. John’s River. The distance, in feet, the quarter is above the wate
Masja [62]

Answer: a. 112 feet, b= 3 seconds, c= 256 feet, d = 6 seconds

Step-by-step explanation:

Here is the complete question:

Rubi tosses a quarter off the Main Street bridge into the St. John’s River. The distance, in feet, the quarter is above the water is modeled by the equation d(t) = −16t2+96t + 112, where t represents time in seconds.

Find the actual value(s) now to each question. Use the solution from the previous question to assist you with what you are actual solving for.

(a) From what height was the quarter tossed?

The quarter was tossed at 112 feet.

(b) How long does it take the quarter to reach its maximum height?

It will take ________ seconds for the quarter to reach its maximum height.

(c) What is the maximum height of the quarter?

The maximum height of the quarter is ________ feet.

(d) How much time does it take for the quarter to hit the water?

It will take ______ seconds for the quarter to hit the water.

a. Since the function is

d(t) = −16t² + 96t + 112,

The coin is tossed at 112 feet. This is because it is the the initial value of the function. It is the constant term and does not depend on any other variable.

b. To calculate the maximum height, we have to find vertex of the function, that has coordinates of h,k and,

h = -b/2a and k = f(h).

From the question, we are aware that,

a = -16, b = 96, c = 112

Using the values, the vertex will be:

h = -b/2a

= -96/(2 × -16)

= -96/-32

= 3

k = f(3)

= 16t² + 96t + 112

= -16(3)² + 96(3) + 112

= -144 + 288 + 112

= 256

The maximum height is therefore 256 feet, and time needed to reach the height will be 3 seconds.

c. The maximum height has been calculated and it is 256 feet.

d. The time it take for the quarter to hit the water will be:

= 3 seconds × 2 = 6 seconds

Since the maximum height took 3 seconds, it would take another 3 seconds to hit the water. This makes it 6 seconds

4 0
3 years ago
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