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2 years ago

What is 3.4 / x = 2.17/ 7.7?

1 answer:

4 0

You could use a method called cross products to solve this proportional equation. What you would do is multiply 3.4*7.7 =2.17*x

If multiplied correctly, your equation should be 26.18 = 2.17x

You are trying to get the variable alone on one side. To do this, you have to undo the multiplication of the coefficient. The opposite of multiplication is division, so you would divide both sides by 2.17.

If done correctly, your equation should now be x=<span>12.064516129

However, this can be rounded to x= approximately 12.066

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Someone please help with this question please

natima [27]

Step-by-step explanation:

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By ASA congruence, triangles AED and CEB are congruent.

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2 years ago

4x + 11y = 7<br> 4x + 3y = -1

Serhud [2]

Answer:

x= - 1

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Step-by-step explanation:

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2 years ago

Whats the answer for 2x + 1 + 7x ?

lesya692 [45]

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9x+1

Step-by-step explanation:

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Y=x^2+bx+c;(-2,3)

Maksim231197 [3]

<h3>Answer: b = 4 and c = 7.</h3>

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Explanation:

Comparing y = x^2+bx+c to y = ax^2+bx+c, we see that a = 1.

The vertex given is (-2,3). In general, the vertex is (h,k). So h = -2 and k = 3.

Plug those three values into the vertex form below

y = a(x-h)^2 + k

y = 1(x-(-2))^2 + 3

y = (x+2)^2 + 3

Then expand everything out and simplify

y = x^2+4x+4 + 3

y = x^2+4x+7

We see that b = 4 and c = 7.

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2 years ago