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d1i1m1o1n [39]
3 years ago
12

Help me with questions 8 and 9 for 20 POINTS!!!!!!

Mathematics
1 answer:
rewona [7]3 years ago
5 0

Answer:

hehejejejjenene

Step-by-step explanation:

sjjshenebjsjsjwjjejenene .....

hope it helps

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Determine whether the system of equations has one solution, no solution, or infinitely many solutions. 4x=10+4y and 2x-2y=15
galben [10]

Answer:

infinitely many solutions

Step-by-step explanation:

Given the simultaneous equation

4x=10+4y... 1

2x-2y=15 .... 2

_____________

4x-4y = 10 * 1

2x-2y = 15 * 2

__________--

4x-4y = 10

4x-4y = 30

Add both equation

8x - 8y = 10+30

8x-8y = 40

Divide though by 8

x-y = 5

x = 5 +  y

Since the result gave 1 equation and 2 unknowns, then we will let x =k

k = 5 + y

y = k -5

k can be any integer

(x,y) = (k, k-5)

This show that the equation has infinitely many solutions

6 0
3 years ago
Harvey is 3 times as old as Jane. The sum of their ages is 48 years. Find the age of each.
Marta_Voda [28]
Alright, let's answer this -

Half of 48 is 24... 

Half of 24 is 12...

12 three times is 36...

36 + 12 is equal to 48. =)
6 0
3 years ago
Read 2 more answers
(a) The parametric equations x = f(t) and y = g(t) give the coordinates of a point (x, y) = (f(t), g(t)) for appropriate values
Gnesinka [82]

Answer:

Step-by-step explanation:

a). Given a parametric equation, we are describing a set of coordinates based on the value of t. The variable t is called the parameter.

b) we have the following equations. x=t y=t^2, so in order for us to know where the object is at t=t' we must replace t with the specific value t'. Hence, when t=0 the object is at (0,0^2) = (0,0) (the origin). When t=6, the object is at (6,6^2) = (6,36).

c). To eliminate the parameter, we replace the parameter in one equation by using the second equation. Recall that we have that x=t. Then, by replacing in the second equation, we have the following

y=t^2 = (x)^2 = x^2

where x\geq 0

5 0
3 years ago
Someone answer this correctly plz :(
dem82 [27]
About 8 unites should be the answer.
8 0
3 years ago
Read 2 more answers
Find the solution for x in the equation 2(3)^x=8​
lions [1.4K]

Answer:

x=1.26186

Step-by-step explanation:

There's an Algebra Calculator called Algebra Papa.

5 0
3 years ago
Read 2 more answers
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