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olasank [31]
3 years ago
9

Which of the following relations is a function?

Mathematics
1 answer:
Gnom [1K]3 years ago
5 0

Answer:

the answer is C

Step-by-step explanation:

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X-70/x<-3 solve for x under the assumption that x>0
Virty [35]

<span>Simplifying 0x + 7 + 5x = 2x + 30 + 40 Anything times zero is zero. 0x + 7 + 5x = 2x + 30 + 40 Combine like terms: 0 + 7 = 7 7 + 5x = 2x + 30 + 40 Reorder the terms: 7 + 5x = 30 + 40 + 2x Combine like terms: 30 + 40 = 70 7 + 5x = 70 + 2x Solving 7 + 5x = 70 + 2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2x' to each side of the equation. 7 + 5x + -2x = 70 + 2x + -2x Combine like terms: 5x + -2x = 3x 7 + 3x = 70 + 2x + -2x Combine like terms: 2x + -2x = 0 7 + 3x = 70 + 0 7 + 3x = 70 Add '-7' to each side of the equation. 7 + -7 + 3x = 70 + -7 Combine like terms: 7 + -7 = 0 0 + 3x = 70 + -7 3x = 70 + -7 Combine like terms: 70 + -7 = 63 3x = 63 Divide each side by '3'. x = 21 Simplifying x = 21</span>
4 0
3 years ago
How many solutions does the system of equations have?<br> 0<br> 1<br> 3<br> 4
myrzilka [38]

Answer:

3

Step-by-step explanation:

4 0
3 years ago
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A set of X and Y scores has a regression equation with a slope of b = 4. If the mean for the X values is MX = 2 and the mean for
Rom4ik [11]

Answer:

-2

Step-by-step explanation:

In a linear regression model we have the equation Y = b_{1}X + b_{0} that relates X and Y, where b_{1} is the estimator of the slope and b_{0} is the estimator of the Y-intercept. The coefficients b_{1} and b_{0} can be estimated with the equations:

b_{1} = \frac{S_{xy}}{{S^{2}}_{x}}

b_{0} = MY-b_{1}MX. Thus,

b_{0} = 6 - (4)(2) = -2

6 0
3 years ago
It’s algebra it says find each function value here is a picture of the work sheet
s344n2d4d5 [400]

1.

8 > 1  so:  a(x) = -4x + 7

a(8) = - 4(8) + 7 = - 32 + 7 = - 25

2.

-6 ≤ 1 ≤ 1   so:   a(x) = 2x - x²

a(1) = 2(1) - (1)² = 2 - 1 = 1

3.

-7 ≤ -6  so:  a(x) = |x - 8|

a(-7) = |-7 - 8| = |-15| = 15

4.

-6 ≤ -3 ≤ 1   so:   a(x) = 2x - x²

a(-3) = 2(-3) - (-3)² = -6 - 9 = - 15

5.

-6 ≤ -¹/₂ ≤ 1   so:   a(x) = 2x - x²

a(-¹/₂) = 2(-¹/₂) - (-¹/₂)² = - 1 - ¹/₄ = - 1¹/₄

6.

⁹/₄ > 1  so:  a(x) = -4x + 7

a(⁹/₄) = - 4(⁹/₄) + 7 = - 9 + 7 = - 2

7 0
3 years ago
What is the quotient of 8.832 x 106 and 9.6 x 102 expressed in scientific notation?
Dvinal [7]

Step-by-step explanation:

8.832 \times  {10}^{6}  + 9.6 \times  {10}^{2}  \\  = 88320 \times  {10}^{2}  + 9.6 \times  {10}^{2}  \\  = 88329.6 \times  {10}^{2}  \\  = 8.83296 \times  {10}^{6}

6 0
3 years ago
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