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2 years ago

Explain this three questions please

Mathematics

1 answer:

serious [3.7K]2 years ago

4 0

For the #2 it would be 3 because 50 goes into 138 2 times which will give you 100 with a remainder of 38. You can't leave behind the other 38 so you will bring another bus.

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I need help -7y^2-2y^2+y^3-3y-2y+5y^3-2y

kari74 [83]

Answer:

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Step-by-step explanation:

Combine like terms

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{\color{#c92786}{-7y^{2}}}{\color{#c92786}{-2y^{2}}}+y^{3}-3y-2y+5y^{3}-2y

−7y2−2y2+y3−3y−2y+5y3−2y

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Combine like terms

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-9y^{2}+y^{3}{\color{#c92786}{-3y}}{\color{#c92786}{-2y}}+5y^{3}{\color{#c92786}{-2y}}

−9y2+y3−3y−2y+5y3−2y

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Combine like terms

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-9y^{2}+{\color{#c92786}{y^{3}}}-7y+{\color{#c92786}{5y^{3}}}

−9y2+y3−7y+5y3

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Rearrange terms

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{\color{#c92786}{-9y^{2}+6y^{3}-7y}}

−9y2+6y3−7y

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Solution

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5 0

2 years ago

Pls answer all questions

blagie [28]

1. x=14
2. x=5
3. x=2.5
4.x=9
5.x=5
6.x=13
7.x=-2
8.x=-2
9.x=-10
10.x=13
11.x=-3
12.x=-11
13.x=0
14.x=0.58
15.x=-1.6

hope this helps :)

4 0

2 years ago

Read 2 more answers

I need help please I don’t know what to it is due today

Kazeer [188]

Answer:

12 blue necklaces + 12 red necklaces = 24 necklaces. He will have 1 blue bead left over and 1 red bead left over.

Step-by-step explanation:

37/3 = 12.333 or 12 r1

25/2= 12.5 or 12 r1

1+1=2

6 0

2 years ago

Read 2 more answers

Find the possible value or values of y in the quadratic equation z^2 - 4z+ 4 =0

jeyben [28]

Didn't you mean "Find the possible value or values of z? y is not at all present in this equation.

z^2 - 4z + 4 = 0 can be factored into (z-2)(z-2). Thus, the given equation has two equal, real solutions: z=2 and z=-2.

5 0

2 years ago

A leading bank is coming up with an investment that pays 8 percent interest compounded semiannually. What is the investment's ef

uranmaximum [27]

The effective rate is calculated in the following way:
$r = {(1 + \frac{i}{n} )}^{n} - 1$
where r is the effective annual rate, i the interest rate, and n the number of compounding periods per year (for example, 12 for monthly compounding).
our compounding period is 2 since the bank pays us semiannually(two times per year) and our interest rate is 8%
so lets plug in numbers:
$r = {(1 + \frac{8\%}{2}) }^{2} - 1 \\ r = {(1 + \frac{1}{25}) }^{2} - 1 \\ r = \frac{676}{625} - 1 \\ r = 0.0816 \: or \: 8.16\%$

5 0

3 years ago