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lozanna [386]
3 years ago
11

I need help with these two questions

Mathematics
1 answer:
Mandarinka [93]3 years ago
5 0

Answer:

(-2,-2)

Step-by-step explanation:

for question number 15...cordinated grid shows each equation...first equation is represented by straight line going upwards through +4 in y axis...(y=3x+4)...

point is....every point in this two lines represent a possible x and y value for each equation...and there is a point where these lines meet each other....in that point...x and y values are possible values for both equations.so answer is (-2,-2)...this cordination satisfy each pairs of equation...you can try using -2 for x in both equations and get -2 as the answer for y...that proves the point..try it for 16 quiz.good luck

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If y = 8 when x<br> 8 when x = 3, find y when x = 45.
Zarrin [17]

Answer:

y = 120

Step-by-step explanation:

y = kx ur finding k

8 = k 3 get k alone by dividing both sides by 3 --> 8/3 = k

k = 8/3

Y = 8/3 45 now your finding Y when x is 45

Y = 120

to make sure do 120 = 8/3 45 should equal the same

4 0
3 years ago
Help again...
Natali [406]

A: 25.12 (26 if your rounding)

B: You have to multiply R by 2 then by pi (3.14)

C: 10.5 (11 if your rounding)

Step-by-step explanation:

For a: A circle's circumference is its diameter multiplied by pi (3.14) To get the diameter you would multiple the radius by 2. Therefore your answer being 25.12 (Round to 26 if you want)

For c: Divide 65 by pi then that answer by two.

3 0
3 years ago
PLEASE HELP!!!! <br> 100 ÷ 25 • 20 + 4 ÷ 2 – 14
Zolol [24]

The answer is 38

Hope this helps : )

3 0
3 years ago
Read 2 more answers
I really need help i don’t get this at ALL. :(
bonufazy [111]

Step-by-step explanation:

You have to go to Y axis first then to X. For example : (4,5) go up 4 and go to x axis and when u get to 5 you put a dot. The same thing if is (-4,-5) go down 4 and to the left 5 and mark a dot. When you mark the dot put (_,_).

Hope you understand. Let me know if you don't.

6 0
3 years ago
Evaluate the equation y = abx when a = 2, b = 1/2, and x = 3. <br> Make into a fraction.
topjm [15]
Abx=2*1/2*3=6/2=3

Hope this helps!
4 0
3 years ago
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