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Liono4ka [1.6K]
3 years ago
10

For what value k the pair of linear equations 4x-3y=9 and 2x+ky=11 has no solution

Mathematics
1 answer:
yarga [219]3 years ago
8 0

Answer: k=-3/2

Step-by-step explanation:

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I need help please?!!!
Rina8888 [55]

Answer:

No

Step-by-step explanation:

To find out if the ordered pair is a solution, just plug x and y into the equation. Is 5(1) + (3) equal to or less than -3? No, it equals 8, which is greater than -3. So the answer is No.

4 0
3 years ago
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Which of the following shows the extraneous solution to the logarithmic equation below? log Subscript 3 Baseline (18 x cubed) mi
Mnenie [13.5K]

Answer:

C.) x= -4

Step-by-step explanation:

just took the test on edg. 2020

3 0
3 years ago
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Question b with explanation?​
Step2247 [10]
Hello!

The answer is 40. All we have to do is find the number of 16 year olds who spent between 25-35 minutes in social media. That is 145. The number of 13 year olds who spent the same amount of time is only 105, therefore 40 more 16 year olds spent between 25 and 35 minutes on social media.
8 0
2 years ago
P(x)=Third-degree, with zeros of −3, −1, and 2, and passes through the point (1,12).
Mila [183]

Answer:

The polynomial is:

p(x) = -x^3 - 2x^2 + 5x + 6

Step-by-step explanation:

Zeros of a function:

Given a polynomial f(x), this polynomial has roots x_{1}, x_{2}, x_{n} such that it can be written as: a(x - x_{1})*(x - x_{2})*...*(x-x_n), in which a is the leading coefficient.

Zeros of −3, −1, and 2

This means that x_1 = -3, x_2 = -1, x_3 = 2. Thus

p(x) = a(x - x_{1})*(x - x_{2})*(x-x_3)

p(x) = a(x - (-3))*(x - (-1))*(x-2)

p(x) = a(x+3)(x+1)(x-2)

p(x) = a(x^2+4x+3)(x-2)

p(x) = a(x^3+2x^2-5x-6)

Passes through the point (1,12).

This means that when x = 1, p(x) = 12. We use this to find a.

12 = a(1 + 2 - 5 - 6)

-12a = 12

a = -\frac{12}{12}

a = -1

Thus

p(x) = -(x^3+2x^2-5x-6)

p(x) = -x^3 - 2x^2 + 5x + 6

6 0
3 years ago
What is the area of the gym
Lyrx [107]

Answer:

The way to find the area of a shape is to multiply its hieght by its width.

Step-by-step explanation:

The formula to calculate a circles radius is A = πr^{2}

5 0
3 years ago
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