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3 years ago

Someone helpe answer this question please

Mathematics

1 answer:

Aneli [31]3 years ago

6 0

2. We have 25+15+10=50 minutes total work out, 25 lifting, so a ratio of

25:50 which is simplified to

Answer: 1:2

$9 \textrm{ hours } \times \dfrac{6 \textrm{ miles}}{2 \textrm{ hours}} = 27 \textrm{ miles}$

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With full explanation from the internet like before 3x2-6x+5=0

Elodia [21]

Answer:

$\sf x=1+i\sqrt{\dfrac{2}{3}} \ \quad and \quad \:x=1-i\sqrt{\dfrac{2}{3}}$

Explanation:

Given Expression:

3x² - 6x + 5 = 0

Use the Quadratic Formula:

$\sf x = \dfrac{ -b \pm \sqrt{b^2 - 4ac}}{2a} \ \ when \ \ ax^2 + bx + c = 0$

insert coefficients

$\Longrightarrow \sf x = \dfrac{-\left(-6\right)\pm \sqrt{\left(-6\right)^2-4\cdot \:3\cdot \:5}}{2\cdot \:3}$

$\Longrightarrow \sf x = \dfrac{\left6\right\pm \sqrt{-24} }{6}$

$\Longrightarrow \sf x = \dfrac{\left6\right\pm 2\sqrt{6}i}{6}$

$\Longrightarrow \sf x =1 \pm i\dfrac{\sqrt{6} }{3}$

$\Longrightarrow \sf x=1+i\sqrt{\dfrac{2}{3}}, \quad 1-i\sqrt{\dfrac{2}{3}}$

6 0

2 years ago

Read 2 more answers

Which is independent and which is dependent.

Arada [10]

Idk if you are talking about independent and dependent variables but if you are then the independent variable is the variable that is changed or controlled and the dependent variable is the variable being tested and measured in a scientific experiment. Hope this helps!!!❤️

3 0

3 years ago

Because of hiring a plumber, y, to work x hours on a repair project can be modeled using a linear function. the plumber charges

seraphim [82]

Answer:

The plumbers cost would be equal to the equation 80+45x=y with y being the total amount of money he made and x being how many hours he worked.

Step-by-step explanation:

In this equation to find the amount the plumber was paid all you need to do is plug in the amount of hours he worked for x.

If the plumber worked his maximum of 8 hours then the equation would change from 80+45x=y to 80+(45×8)=440.

So, if the plumber worked for 8 hours he would make $440.

4 0

3 years ago

1. Choose the correct answer. *

Alex777 [14]

The answer is just C your welcome

5 0

2 years ago

Find the length of the missing side

dlinn [17]

Answer:

1st one 6.4

Step-by-step explanation:

C^2= a^2 +b^2

C^2 = 5^2 + 4^2

C^2 = 25 + 16

C^2= 41

Root of 41 is 6.4

3 0

3 years ago

Read 2 more answers