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Inga [223]
4 years ago
9

-4y+8-3x+4y+9+5x= Need help

Mathematics
2 answers:
lord [1]4 years ago
7 0

Answer:

2x+17

Step-by-step explanation:

-4y+8-3x+4y+9+5x

Combine like terms

-3x +5x    -4y +4y    +8+9

2x             +0             +17

bezimeni [28]4 years ago
6 0

Answer:

2x+17

Step-by-step explanation:

-4y+8-3x+4y+9+5x=

-4y+4y-3x+5x+8+9

2x+17

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Write a decimal for >1.45 to make the comparison true
Softa [21]

Answer:

> this sign means greater than so any number that is greater than 1.45 would work.

2.34 or 1.47, any number above 1.45 will be an excellent answer

Hope this helps ;)

5 0
3 years ago
Use the frequency distribution, which shows the number of American voters (in millions) according to age, to
a_sh-v [17]

Answer:

The probability that a voter chosen at random is in the 18 to 20 years old age range is =  4.2/ 134.8= 0.0311572

Step-by-step explanation:

We can find the probability by simply dividing the frequency of the ages range of 18-20 by the total frequency.

Ages                Frequency

18 to 20             4.2

21 to 24             7.8

25 to 34           20.8

35 to 44           23.7

45 to 64           50.1

<u>65 and over       28.2</u>

<u>∑                        134.8</u>

The probability of an event is given by the occurrence of an event by the total occurrences .

So

Here the occurrence of ages 18-20 is given by 4.2

and the total frequency is 134.8

The probability that a voter chosen at random is in the 18 to 20 years old age range is =  4.2/ 134.8= 0.0311572

7 0
3 years ago
Use separation of variables to solve dy dx − tan x = y2 tan x with y(0) = √3. Find the value of c in radians, not degrees
a_sh-v [17]

Answer:

y(x)=tan(-log(cos(x))+\frac{\pi }{3} )

Step-by-step explanation:

Rewrite the equation as:

\frac{dy(x)}{dx}-tan(x)=y(x)^{2} *tan(x)

Isolating \frac{dy}{dx}

\frac{dy}{dx} =tan(x)+tan(x)*y^{2}

Factor:

\frac{dy}{dx} =tan(x)*(1+y^{2} )

Dividing both sides by (1+y^{2} ) and multiplying them by dx

\frac{dy}{1+y^{2} } =tan(x)dx

Integrate both sides:

\int\ \frac{dy}{1+y^{2} } = \int\ tan(x)  dx

Evaluate the integrals:

arctan(y)=-log(cos(x))+C_1

Solving for y:

y(x)=tan(-log(cos(x))+C_1)

Evaluating the initial condition:

y(0)=\sqrt{3} =tan(-log(cos(0))+C_1)=tan(-log(1)+C_1)=tan(0+C_1)

\sqrt{3} =tan(C_1)\\arctan(\sqrt{3} )=C_1\\60=C_1

Converting 60 degrees to radians:

60degrees*\frac{\pi }{180degrees} =\frac{\pi }{3}

Replacing C_1 in the diferential equation solution:

y(x)=tan(-log(cos(x))+\frac{\pi }{3} )

3 0
3 years ago
How many solutions does this equation have?
zhenek [66]
One solution because when you switch the - to the other side it will be positive which will equal one and make it one solution.
6 0
3 years ago
Read 2 more answers
Sheryl is making 4 equal servings from a recipe that contains 84 calories. Which equation could Sheryl use to find the number of
Makovka662 [10]
The answer is 84 divided by 4=c
8 0
3 years ago
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