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sweet-ann [11.9K]
3 years ago
14

Help me

Mathematics
1 answer:
REY [17]3 years ago
3 0

Answer:

Step-by-step explanation:

I used SI system for units

1)meter

2)kilogram

3)kilogram

4)meter

5)Litre

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Help me pls!!!!!!!!!
Dominik [7]

Answer:

x^2+18=-9x : x = -3, x = -6

Step-by-step explanation:

x^2+18=-9x

Add 9x to both sides:

x^2+18+9x=-9x+9x

Simplify:

x^2+9x+18=0

Solve with the quadratic formula:

For a quadratic equation of the form ax^2+bx+c=0 the solutions are:

x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}

For a=1,\:b=9,\:c=18:\quad x_{1,\:2}=\frac{-9\pm \sqrt{9^2-4\cdot \:1\cdot \:18}}{2\cdot \:1}

x =\frac{-9 + \sqrt{9^2-4\cdot \:1\cdot \:18}}{2\cdot \:1} : -3

x =\frac{-9 - \sqrt{9^2-4\cdot \:1\cdot \:18}}{2\cdot \:1} : -6

The solution to the quadratic equation are:

x=-3,\:x=-6

Hope I helped. If so, may I get brainliest and a thanks?

Thank you, have a good day!

6 0
3 years ago
Jack took out a 6-year loan for $25,000 to purchase a boat at a 4.5% interest rate. If the interest is compounded monthly, what
Kruka [31]

Answer: $32,732.58

Step-by-step explanation:

To calculate the total loan payment over the course of the loan period, use the future value formula:

= Loan amount * (1 + rate) ^ number of years

As this loan is compounded monthly, you need to convert certain terms to monthly figures:

Number of periods = 6 * 12 months = 72 months

Interest = 4.5 / 12 = 0.375%

Total payment:

= 25,000 * ( 1 + 0.375%)⁷²

= $32,732.58

6 0
2 years ago
Someone please helppp
KiRa [710]

Answer:

2,16  16,2

Step-by-step explanation:

probally wrong

7 0
3 years ago
Read 2 more answers
Marla did 65 sit ups each day for one week use the distributive property to show an expression you can use to find the total num
Elis [28]
7(65)=total sit-ups
You get 455
5 0
3 years ago
Read 2 more answers
What does 125 have in common with a^3 when 125 is written as a power?
mestny [16]

125

2

3

Rewrite  

2

3

as a product.

Tap for more steps...

(

125

1

3

)

2

Simplify.

Tap for more steps...

5

2

Raise  

5

to the power of  

2

.

25

5 0
3 years ago
Read 2 more answers
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