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katen-ka-za [31]
2 years ago
15

Need help on 8 and 9 please!!

Mathematics
1 answer:
Georgia [21]2 years ago
3 0

Answer:

for question no. 8 there is a formula in coordinate geometry which i don't remembered .

but can help in solving question no. 9

<u>solution</u><u> </u><u>for</u><u> </u><u>9</u>

it is given that values varies directly that means

<u> </u><u>X1</u> = <u>X2</u><u> </u>

Y1 Y2 we have to find Y2

i.e. 9/5.4= -10/Y2

or Y2 × 9 = 5.4 × -10

Y2 = -54/9

Y2 = -5

Step-by-step explanation:

<em><u>hope</u></em><em><u> </u></em><em><u>it</u></em><em><u> </u></em><em><u>helped</u></em><em><u> </u></em><em><u>u</u></em><em><u> </u></em><em><u>buddy</u></em><em><u> </u></em><em><u>;</u></em><em><u> </u></em><em><u>)</u></em>

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alisha [4.7K]

Answer:

y = 4/3x

Step-by-step explanation:

Hope that helps you

3 0
3 years ago
Find the area bounded by the graphs of the indicated equations over the given interval.
NeX [460]

Answer:

48

Step-by-step explanation:

y = 0

is basically the horizontal axis.

First, find the integral of x^2-25.

Remember that

integral of a constant is that constant times x.

Also that

to take the integral of a power function, add 1 to the degree and divide by that same degree.

y =  {x}^{2}  - 25

We then get

\frac{ {x}^{3} }{3}  - 25x

Evaluate at -3

\frac{ - 3 {}^{3} }{3}  - 25( - 3)

- 27 + 75 = 48

Then we evaluate at 0

\frac{0 {}^{3} }{3}  - 25(0) = 0

Next, we subtract the the answer then we get

48 - 0 = 48

8 0
2 years ago
Philip and Kevin are hoping to earn enough money to buy concert tickets for a show that costs $225 her concert tickets. Philip a
Zigmanuir [339]

Answer:

Kevin is going to be able to have enough money for the concert the fastest

Philip needs at least 4 weeks

Kevin needs at least 3 weeks

Step-by-step explanation:

<u>Philip</u>

  • $8.75/hour * 6 hours/weekend * 1 weekend/week = $52.5/week
  • $45 saved

Let's call x to the number of weeks Philip needs to reach $225.

52.5*x + 45 = 225

52.5*x = 225 - 45

x = 180/52.5

x = 3.43

He needs at least 4 weeks

<u>Kevin</u>

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Let's call y to the number of weeks Kevin needs to reach $225.

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6 0
3 years ago
Answer the question present in the picture
never [62]
The solution step by step. 43 comes from adding all the given numbers together.

7 0
3 years ago
Htuhrjnkemldjrhftrfejdkws
kondaur [170]

Answer:

2z + 4 = 8

Z = 2

Step-by-step explanation:

2z + 4 = 8

-4. -4

2z = 8

—- —

2. 2

z. =. 4

Easy Peasy! Hope this helped :) have great day!!

3 0
1 year ago
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