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2 years ago

If x=3 than 5x+2= HELPPPPPPPPP

Mathematics

2 answers:

Andrej [43]2 years ago

8 0

Answer:

Step-by-step explanation:

5x+2

(5*3)+2

15+2

Sphinxa [80]2 years ago

4 0

5(3) + 2 =

15 + 2 =

17

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Please help I will give out brainliest

Nitella [24]

Answer:

i)x=0,x=1

ii)

$\frac{2}3} + \frac{\sqrt{40} }{6} \\\frac{2}3}-\frac{\sqrt{40} }{6}$

Step-by-step explanation:

so I did not use the graphs actually.

for the answer to question i), i wrote out the equation as given:

3x^2-3x+2=2

then, i subtracted the two from the right side of the equation to make the equation set equal to 0, and I got:

3x^2-3x+2-2=+2-2, which becomes 3x^2-3x=0

then, I used the quadratic method of taking out the greatest common factor, which in this case is 3x, and the equation becomes:

3x(x-1)=0

finally, for this equation, I set 3x=0 and x-1 =0 to get the solutions to this equation, as shown below

3x=0(divide both sides by 3 to get)x=0

x-1=0(add 1 to both sides to get)x=1

now for the second equation, I had no other choice but to use the quadratic formula to find the solutions.

so I set up the quadratic formula as shown:

$\frac{-(-4)+ or -\sqrt{(9-4)^2)-4(-2)(3)} }{2(3)}$

from there the equation gets simplified down to:

$\frac{4+ or -\sqrt{16-4(-6)} }{6}$

simplifying the formula even further gives us:

$\frac{4+ or -\sqrt{40} }{6}$

if we simplify the equation one last time, we get:

$\frac{2}{3} + or -\frac{\sqrt{40} }{6}$

therefore, the solutions to this equation are:

$\frac{2}{3} +\frac{\sqrt{40} }{6}\\ \frac{2}{3} - \frac{\sqrt{40} }{6}$

8 0

3 years ago

19632 divided by 218 please help

Anton [14]

90.0550458716 is the answer

3 0

3 years ago

Read 2 more answers

Pls help, thank you!!

aliya0001 [1]

Answer: 1, 3

For a cubic polynomial, there are either 3 real roots or 1 real root nad 2 complex roots in a conjugate pair.

4 0

2 years ago

If 75 is 25% of a value what is the value

Reptile [31]

Answer:

300

Step-by-step explanation:

25% = 1/4 75 times 4=300

3 0

4 years ago

Read 2 more answers

Help pls pls pls pls

adelina 88 [10]

Answer:

m∠1= 41°

m∠2= 85°

m∠3= 95°

m∠4= 85°

m∠5= 36°

m∠6= 49°

m∠7= 106°

Step-by-step explanation:

To find m∠2

95+m∠2= 180

-95 - 95

m∠2= 85

To find m∠4

Since they are vertical angles, m∠2=m∠4, that means that they are both 85°

To find m∠1

There is four angles in this shape, so the sum is 360 degrees.

90+144+85+m∠1= 360

319+m∠1= 360

-319 -319

m∠1= 41°

To find m∠5

144+m∠5= 180

-144 -144

m∠5= 36°

To find m∠6

m∠5+m∠3+m∠6= 180

36+95+m∠6= 180

131+m∠6= 180

-131 -131

m∠= 49°

To find m∠7

You need to find the sum of the other unidentified angle.

m∠6+m∠=180

49+m∠= 180

-49 -49

m∠= 131

Now you need to find the sum of all the angles in the quadrilateral to get the measure for angle 7.

131+38+85+m∠7= 360

254+m∠7= 360

-254 -254

m∠= 106°

4 0

4 years ago