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bazaltina [42]
1 year ago
7

I get see photo. I l ow this is wrong. Can you help?

Mathematics
1 answer:
mylen [45]1 year ago
8 0

Given the equation:

y=x^2+x-4

We will find the value of (y) when ( x = 2i )

Note: i² = -1

so, when x = 2i

y=(2i)^2+(2i)-4

Simplifying the answer

So,

\begin{gathered} y=4i^2+2i-4 \\ y=4\cdot(-1)+2i-4 \\ y=-4+2i-4 \\ y=-8+2i \end{gathered}

So, the answer will be y = -8+2i

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Find the slope of the line passing
Lana71 [14]
The slope of the line formula: \frac{y_2 - y_1}{x_2 - x_1}

Next, you would have to plug in the coordinates. 
\frac{6 - 2}{9 + 7}

Now, all you would have to do is solve and simplify it. 
\frac{6 - 2}{9 + 7}= \frac{4}{16} = \frac{1}{4}

The slope would be  \frac{1}{4}. 

I hope this helps!

4 0
3 years ago
Members of the Wide Waters Club pay
vivado [14]

Answer:

The number of times members and non-members will have to rent a boat in order to pay the same amount=20

Step-by-step explanation:

We can have two expressions to show the total cost paid by a member and non-member;

Total cost by member=Cost per summer season+cost per number of times they rent a boat×number of times they rent a boat

where;

Cost per summer season=$105

Cost per number of times they rent a boat=$9.50

Number of times they rent a boat=n

Replacing;

Total cost by a member=105+(9.5×n)=9.5 n+105......equation 1

Total cost by a non-member=Cost per number of times they rent a boat×number of times they rent a boat

where;

Cost per number of times they rent a boat=$14.75

Number of times they rent a boat=n

Replacing;

Total cost by a non-member=(14.75×n)=14.75 n......equation 2

To calculate the number of times they would have to rent a boat in order to pay the same amount, we equate equation 1 to equation 2

9.5 n+105=14.75 n

14.75 n-9.5 n=105

5.25 n=105

n=105/5.25

n=20

The number of times members and non-members will have to rent a boat in order to pay the same amount=20

6 0
3 years ago
32) Out of 525 people surveyed, 210 answered yes. Estimate how many people would answer yes if 900
allsm [11]

Answer:

360 people

Step-by-step explanation:

\frac{ 210}{525}*900=360

Hope this helped! :)

8 0
2 years ago
Please please please help.​
saul85 [17]

Answer:

Step-by-step explanation:

(-5,-3) is a point on the graph.

f⁻¹(-3) = -5

7 0
3 years ago
If a pound of apples cost $2.90 how much would 2.4 lbs cost
polet [3.4K]

$6.96   $2.9 x 2.4=$6.96

7 0
3 years ago
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