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3 years ago

Could you show the work to please :)

Mathematics

1 answer:

MAVERICK [17]3 years ago

3 0

Answer:

Put a point at (-7,0) and another at (0,-2)

Step-by-step explanation:

2x+7y=-14

Plug in 0

2(0)+7y= -14

7y=-14

y=-2

same thing for x

2x+7(0)=-14

x=-7

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Determine the value of x

horrorfan [7]

$x^2 = 5^2 + 8^2\\x = \sqrt{5^2 + 8^2} = \sqrt{25 + 64} = \sqrt{89}$

Answer: $\sqrt{89}$ .

6 0

3 years ago

Read 2 more answers

15 points!! Please help! please explain how you got you answers

Lynna [10]

We observe that a line will pass through 3 points, but to find a slope we only need two.

We see that it passes through points (assuming the scale of graph is 1 : 1) $P_1(x_1,y_1)=P_1(0,1)$ and $P_2(x_2,y_2)=P_2(2,-1)$ .

We can use slope formula that applies for any line and produce the same slope for any two different points on the line

$m=\dfrac{\Delta{y}}{\Delta{x}}=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{-1-1}{2-0}=-1$

So the slope is -1 also it intersects y-axis at $n=1$ so the general form of the linear function is

$f(x)=mx+n$

That is in your case

$\boxed{f(x)=-x+1}$

Hope this helps.

4 0

3 years ago

So far, Ricardo has scores of 13, 17, 19 and 21 points for the first four rounds of a dice game. What does he need the total sco

posledela

Answer:

40 points

Step-by-step explanation:

The score for the first four rounds of the game is 13, 17, 19, and 21 points.

Let $S_5$ and $S_6$ be the scores of the fifth and sixth games respectively in order to achieve an average score of 20 points per round for all six rounds.

$\text{Average score} = \frac{\text{Sum of the scores of all the rounds}}{\text{Total number of the rounds}}$

$\Rightarrow 20=\frac{13+17+19+21+S_5+S_6}{6}$

$\Rightarrow 20\times6=80+S_5+S_6$

$\Rightarrow S_5+S_6=120-80=40.$

Hence, the combined score of the fifth and sixth rounds are 40 points.

3 0

4 years ago

The functions f and g are defined as follows f(x)=-5x-3 g(x)=2x^3+2 <br> Find f(6) and g(-3)

levacccp [35]

Answer

f(6) = -33 and g(-3) = -52

Explanation;

Given the function

f(x)=-5x-3

f(6)=-5(6)-3

f(6) = -30 -3

f(6) = -33

Similarly if g(x)=2x^3+2

g(-3)=2(-3)^3+2

g(-3) = 2(-27)+ 2

g(-3) = -54 + 2

g(-3) = -52

Hence f(6) = -33 and g(-3) = -52

8 0

3 years ago

Can someone help on 18

Anuta_ua [19.1K]

A = 9 (Sorry I can't do the other ones, I haven't learned those ones yet) Hope this helps!! :P

7 0

3 years ago