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2 years ago

For my brother please!

Mathematics

1 answer:

Fiesta28 [93]2 years ago

3 0

Answer:

1)6

2)9

3)4

4)6

5)6

6)4

7)6

8)6

9)6

10)4

11)4

12)6

13)6

14)8

Step-by-step explanation:

I hoped it helped

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Solve for x: x^2-2x=15

Lyrx [107]

Answer:

Step-by-step explanation:

x^2 - 2x = 15

x^2 - 2x - 15 = 15 - 15 (Subtract 15 from both sides.)

x^2 - 2x -15 = 0 (Simplify.)

<em />

<em>Set up & solve for a quadratic formula</em>

<h3><em>* I will solve for your first x</em></h3>

2 + root 64 / 2x 1 = 2 + root 64 / 2

root 64 = 8

= 2 + 8 / 2

= 10 / 2

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<em>To solve for the second, follow the same pattern/formula for the first that I used to get 5.</em>

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2 years ago

Alyssa can complete a job in 12 minutes. If Miranda helps her, they can complete the job in 9 minutes. How long would it take Mi

miv72 [106K]

Answer:

36 minutes

Step-by-step explanation:

The key is to get the same amount of time for each.

9 * 12 = 108

At 12 minutes per job,

in 108 minutes Alyssa could do

108/12 = 9 jobs

At 9 minutes per job,

Together in 108 minutes they could do

108/9 = 12 jobs

--------------------------

In 108 minutes Mirada does

12 - 9 = 3 jobs

108/3 = 36 minutes per job

4 0

2 years ago

Isabella spends $4.87 on paintbrushes and paint. How many of each item does she buy? Explain how you found your answer. Paint br

Lelechka [254]

The complete question in the attached figure

Let
x-----------------> number of <span>paintbrushes----------- > $0.95 each
y---------------- > number of jar of paint-------------- > $0.99 each

we know that
0.95x+0.99y = </span><span>$4.87
</span><span>
using a graph tool

</span>the solution will be a pair of coordinates that are whole numbers -- > see the attached figure
<span>
the solution is the point (2,3)

x=2---------------------- > </span>number of paintbrushes
y=3---------------------- > number of jar of paint

the answer is
number of paintbrushes=2
number of jar of paint=3<span>

</span>

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3 years ago

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Elis [28]

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2 years ago

Select the correct answer. This table represents a quadratic function. x y 0 -3 1 -3.75 2 -4 3 -3.75 4 -3 5 -1.75

lana [24]

Answer:

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Step-by-step explanation:

that is the answer

I found the constant which was -3

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2 years ago