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erik [133]
2 years ago
9

Is substitutions the best method to use when one variable is already known

Mathematics
2 answers:
8_murik_8 [283]2 years ago
8 0
There’s two ways to substitute, but i think you mean if you know x but don’t know y. if that is true, then yes use substitution
Mama L [17]2 years ago
7 0
Substitution Method is used for solving equations in 2 Variables, where you find the value of one variable in terms of the other and then substitute that value into any one of the equations. It can also be used when one Variable is known to you and you have to find the other.
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I need help with this question please with an explanation <br> ANSWER ASAP!!!!!!
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The fish is 2.25 ft above the water surface.

Step-by-step explanation:

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4 years ago
What's the perimeter of (-9,8) (-9,16) and (-17,8)
TiliK225 [7]

Answer:

16 + sqrt(128)

Step-by-step explanation:

find the lengths of all 3 sides:

the side from (-9,8) to (-9,16) will be 16-8=8 (x stays constant)

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d=sqrt((-17-9)^2 + (8-16)^2))

= sqrt(128)

So the perimeter will be these 3 numbers added together

P=sqrt(128) + 8 + 8

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which can simplify to:

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4 0
3 years ago
PLEASE HELP!!!!!! please be detailed. 20 points! will give brainliest...
BigorU [14]

When you have a polynomial function, and you need to graph it, you need to find- y intercept (the constant at the end) zeroes( factor equation and set factorsequal to zero) end behavior( if the highest exponent is even, then if the leading coefficient is positive both sides continue up, if the leading coefficient is negative both sides continue down. If the highest exponent is odd, then if the leading coefficient is positive left side continues down, right side continues up, if the leading coefficient is negative then visa versa.) and multiplicity( if the same factor occurs multiple times- if it occurs an odd number of times, then the graph passes the x axis, if it occurs an even number, then it merely touches).

Hope I helped!

4 0
4 years ago
The scale on a map is 1 in. : 50 mi. The actual distance between the two cities is 350 miles. What is the distance between the c
Luba_88 [7]
The answer is 7 because when you divide 50 from 350 I️t gives you seven.



Hope this helped!!!!!!!!!!!!
6 0
4 years ago
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