Select the correct answer.
What are the solutions to this equation?
3
25 - 5
O A
= -1 and r = -0.4
OB.
=
-2 and r = 2
C.
r = -3 and r =
0.5
OD
r = -0.5 and r = 3

Select The Correct Answer.What Are The Solutions To This Equation?325 - 5O A= -1 And R = -0.4OB.=-2 And

Answers

Answer 1

Answer:

D

Step-by-step explanation:

Either try all the numbers and see which ones work or do the following.

Times both sides by 2x-5.

3=x(2x-5)=2x^2-5x

Rearrange and solve the quadratic. I will factorise.

2x^2-5x-3=0

(2x+1)(x-3)=0

so x = -1/2 or 3


Related Questions

Which college is better?
Harvard
Yale
Stanford
Princeton

Answers

Answer:

yale

Step-by-step explanation:

harvard overrated

Answer:it is a personal opinion

Step-by-step explanation:

each school has its goods and bads. I personally would chose Stanford or Princeston because I haven't heard that many bad things from there and has great education. hope this helps

(4-8)( 12, 8)
Write the equation of a line using slope intercept form

Answers

Answer:

y=2x-16

Step-by-step explanation:

so gradient is 8-(-8)/ 12-4

so 16/8 which is 2

equation of line is: y= 2x+c

substitute the values into x,y

8=2(12)+c

8=24+c

8-24=c

-16= C

this is because when it goes over the equal sign it becomes negative so now the equation is y=2x-16

Answer:

Y=2x+16

Step-by-step explanation:

What is the unit rate for 21 3/4 and 2 1/2

Answers

Answer:

I think it is 19 1/4

Step-by-step explanation:

How I got this was I took 21 3/4 and subtracted 2 1/2 which gave me 19 1/4.

Hope this is right and helps.

I’m pretty sure it’s 19 1/4 but I’m not sure

where is the blue dot on the number line?

Answers

Answer:

The blue dot is on -3.1

Step-by-step explanation:

Answer: The blue dot is -3.21

Find the inverse f(x) = 4 – 9x​

Answers

Answer:

[tex]-\frac{x-4}{9}[/tex]

Step-by-step explanation:

Replace x with f(x)

solve for f(x)

Guina made a scale drawing of a window she is making for her house.

1 centimeter = 3 inches. Triangle A B C. Side A is 4 centimeters, side B is 3 centimeters, and side C is 5 centimeters.
Which proportion could Guina use to find the length of side B?
StartFraction 1 centimeters over 3 inches EndFraction = StartFraction 3 centimeters over x centimeters EndFraction
StartFraction 3 centimeters over 1 centimeter EndFraction = StartFraction x centimeters over 3 centimeters EndFraction
StartFraction 1 centimeter over 3 inches EndFraction = StartFraction 3 centimeters over x inches EndFraction
StartFraction 3 inches over 3 centimeters EndFraction = StartFraction x inches over 1 centimeter

Answers

Answer:

Proportion:  1/3=3/x

Step-by-step explanation:

The "1/3" proportion is telling us how the scale measurement relates to the real measurement.

The "3/x" describes the length of side B.

Now it is easy to figure out the answer! :D

Hope it helped!

Answer:

c

Step-by-step explanation:

i took the test mark brainlest if right

How does the risk of needing insurance impact the cost of premiums? O A. In some cases, higher risk results in lower costs. B. Higher risk always results in lower costs. C. Higher risk always results in higher costs. In some cases, higher risk results in higher costs.​

Answers

Answer:

A

Step-by-step explanation:

help me i need a 3/3

Answers

Answer:

4.65

Step-by-step explanation:

144.15/31=4.65

5x-2y=12

6x+2y=32

find the solution

Answers

Answer:

(4,4)

Step-by-step explanation:

There are two ways that you can solve this. You can solve it with the help of technology or you can solve it traditionally. I will show how to do it in both ways so you can pick which way you want to solve it.

Traditional Method:

5x - 2y = 12

6x + 2y = 32

Look at the variables and numbers in both equations. One of them has to be the same value but have to have opposite signs. The 2y in both equations are the same value but have different signs. That's what we want. We can add everything in the equation now. (5x + 6x), (-2y + 2y), and (12 + 32).

11x = 44

To get x alone, Divide each side by 11. Then we will get the value of x.

11/11x = 44/11

x = 4

Horray! We got x, but what about y? Pick one of the equations. I will go with 5x - 2y = 12. Substitute the x value inside the equation.

5(4) - 2y = 12

20 - 2y = 12

-2y = -8

y = 4

Good! We figured out y. Now we know the solution! The solution is (4,4).

Technology Method:

Grab a graphing calculator. Enter the equations. You will see two lines. Look at where they intersect. The point where they intersect is the solution. That line is (4,4). You could also do this on a piece of paper by graphing the equations.

I hope this helps! Let me know if you need any more help or if I got anything wrong.

find
[tex]x + y + z[/tex]
[tex]x = 70 digree [/tex]
[tex]z = 40digree[/tex]
[tex]find y[/tex]

Answers

Answer:

x = 110

y = 110

Step-by-step explanation:

Here, we are going to apply an important triangle property

The sum of opposite interior angles equal the exterior angle of the third side

Thus, we have that;

y = 70 + 40 = 110

As we can see, the third angle in the triangle will be;

180-70-40 = 110

This is because sum of angles = 180

Thus, applying the exterior angle relationship,

x = 70 + 40 = 110

a tree with a height of 4 m cast a shadow 16 m long on the ground. how high is another tree that a shadow which is 20 m long ​

Answers

Answer:

5m

Step-by-step explanation:

Which of the following is an even function?
f(x) = x1
Of(x) = x2 - 1
Of(x) = -3x
O Rx) = 3/8

Answers

Answer:

[tex]f(x) = x^{2} - 1[/tex]

Step-by-step explanation:

The definition of even function is: [tex]f(x) = f(-x)[/tex]

I am going to assume the  second option is [tex]f(x) = x^{2} - 1[/tex] and the answer.

[tex]f(x) = x^{2} - 1\\f(-x) = (-x)^{2} - 1 = x^{2}-1[/tex]

Hiii I need help guysss tyyy and also need to plot points TYSM

Answers

Answer:

6x+10

Step-by-step explanation:

6 left and go up 10 and thats the point

WILL GIVE BRAINLIEST! In the figure, a∥b and m∠1 = 34°.

What is the m∠5?

Enter your answer in the box.

°

Severely slanted line c diagonally crossing parallel lines a and b (reading from top to bottom). Angles formed by c crossing a are labeled one through four, starting at top right and going counterclockwise, where angle one is acute. Angles formed by c crossing b are labeled five through eight, starting at top right and going counterclockwise.







PLEASE HELP ASAP...
WILL GIVE BRAINLIEST

Answers

Answer:

34 degrees

Step-by-step explanation:

Write a ratio and a percent for the shaded area.


3/10, 27%
1/2, 50%
1/3, 33.33%
3/10, 30%

PLEASE HELP ME IVE BEEN STUCK BECAUSE I THOUGHT THAT 12/60 WAS 1/5 SIMPLIFIED??

Answers

Answer:

1/3, 33.33%

Step-by-step explanation:

The full square is 6x6 which means there are 36 tiles in total. The shaded area is 3x4 which is 12. 12/36 is 1/3 simplified or 33.33%.

Answer:

1/3 and 33.33℅

Step-by-step explanation:

total number of rectangles is 36 and the shaded are 12

so 12/36 =1/3

1/3= 0.3333

to change to percent we multiply by 100

0.3333×100℅ = 33.33℅

I need help solving this

Answers

Answer:

Line B & C

Step-by-step explanation:

Parallel lines have the same slope.

Lines B and C have the same slope.

You can see that for both lines B and C that each time the line goes through an exact point, they line up.


Which point is collinear to points A and D?

Answers

F is collinear to points a and d

Find a​ point-slope form for the line with slope
1/2 (1 over 2) and passing through the point ​(−1​,−6​).

Answers

Answer:

It is Third quardant in Graph

work out the value of angle x.
and give a reason for your answer.

pls help!

Answers

Answer:

60°

Step-by-step explanation:

Since, all sides of the given triangle are marked with identical signs.

So, measures of all sides are equal.

Therefore, it is an equilateral triangle.

Measure of each angle of an equilateral triangle is 60°.

So, x = 60° ( Alternate angles)

Please help! Thank you!

Answers

The answer is the second one

What is the slope of a line perpendicular to the line whose equation is x - 3y = -18. Fully reduce your answer.​

Answers

Given:

Equation of a line is

[tex]x-3y=-18[/tex]

To find:

The slope of the line perpendicular to the given line.

Solution:

The slope of the equation [tex]ax+by=c[/tex] is

[tex]Slope=-\dfrac{a}{b}[/tex]

We have,

[tex]x-3y=-18[/tex]

Here, a=1, b=-3. So, slope of this line is

[tex]m_1=-\dfrac{1}{-3}[/tex]

[tex]m_1=\dfrac{1}{3}[/tex]

Product of slopes of two perpendicular lines is -1.

Let slope of perpendicular line is [tex]m_2[/tex].

[tex]m_1\cdot m_2=-1[/tex]

[tex]\dfrac{1}{3}\cdot m_2=-1[/tex]

[tex]m_2=-3[/tex]

Therefore, the slope of the perpendicular line is -3.

someone help pleasee

Answers

Answer:

Option (3)

Step-by-step explanation:

If the sides of a triangle are unequal then the measure of sides opposite to these angle will be in the order from least to greatest.

In ΔABC,

m∠CAB = 180°- (m∠B + m∠C)

        = 180° - (25° + 27°)

        = 180° - 52°

        = 128°

Since, ∠CAB > ∠ABC  ∠ACB

Therefore, a > b > c ---------(1)

Now from ΔADB,

m∠BAD + m∠ADB + m∠DBA = 180°

32° + m∠ADB + m∠35° = 180°

m∠ADB = 180° - 67°

             = 113°

Since, m∠ADB > m∠DBA > m∠BAD

Therefore, c > d > e -------(2)

Combining both the inequalities,

a > b > c > d > e  

Option (3) will be the answer.

Can you guys help me find 1/3 + 5/6 please!

Answers

Answer:

7/6

Step-by-step explanation:

1/3=2/6

2/6+5/6=7/6

Answer:1.16666666667

Step-by-step explanation:

The equation sin (40 degree) equals StartFraction b Over 20 EndFraction can be used to determine the length of line segment AC.

What is the length of ? Round to the nearest tenth.

Answers

Answer:

B. 12.9cm

Step-by-step explanation:

I presume we are asked to find the length of b

Taiga wants to make a circular loop that she can twirl around her body for exercise. He will use a tube that is 2.5 meters long. Estimate the diameter of Taiga's exercise hoop? Round your answer to the nearest thousandth of a meter.

Answers

Answer: 0.796 meters

Step-by-step explanation:

Circumference of circle = [tex]2\pi r[/tex] , where r=radius

Here, Circumference of loop = 2.5 meters

i.e. [tex]2\pi r=2.5[/tex]

[tex]\Rightarrow\ r=\dfrac{2.5}{2\pi}[/tex]

[tex]\Rightarrow\ r=\dfrac{2.5}{2\times\dfrac{22}{7}}\\\\\Rightarrow\ r=\dfrac{2.5\times7}{2\times22}\\\\\Righttarrow\ r=0.398\ m[/tex]

Diameter = 2r = 2(0.398) = 0.796 meters

Hence, The diameter of Taiga's exercise hoop = 0.796 meters

There are 30boys in a sporting club 20of them play hockey and 15 play volley ball each boy plays atleast one of the true game.illustrate the information of a Venn diagram. How many boys play hockey and volley ball

Answers

A possible diagram to illustrate the situation is two circles that intersect, the circle marked as hockey includes the number 10, the circle marked as volleyball includes the number 15 and the intersection includes the number 5 (as you can see in the attachment).

What is a Venn Diagram?

This is a diagram that uses circles and their intersections to illustrate the number of individuals in groups.

How to make a Venn Diagram?

In this case, the Venn Diagram should include the following information:

Two circles, one circle tagged as hockey and the other tagged as volleyball.The number 10 in the hockey circle, number 15 in the volleyball circle, and number 5 in the intersection (10+5+15= 30)

Learn more about Venn diagrams in https://brainly.com/question/29301560

#SPJ1

Can someone help me plz and thank u

Answers

Answer:

<A = 44

Step-by-step explanation:

A triangle is 180 degrees

(x+59) + (x+51) + 84 = 180        >> add everything on the left side

2x + 194 = 180                          >> subtract both sides by 194

2x = -14                                     >> divide both sides by 2 to get x alone

x = -7

since you are finding A<, substitute

<A = x + 51

<A = (-7) + 51

<A = 44  

There are 4 consecutive odd integers that sum to 344. Which integers are they?

Answers

Answer:

The consecutive odd integers are 83, 85, 87 and 89.

Step-by-step explanation:

x + (x + 2) + (x + 4) + (x + 6) = 344

4x + 12 = 344

4x = 344 - 12

4x = 332

x = 332/4

x = 83

x + 2 = 85

x + 4 = 87

x + 6 = 89

Hope this helps

What is the value of -2(x + 3)

Answers

answer:

2x+6 period

Leila (y) is 3 years older than her sister Joan (x). The equation x+3=y
gives Leila's age. What is the dependent variable?

Answers

Answer:

y

Step-by-step explanation:

The value of y is dependent on the value of x+3 because y represents leilas age.

Answer

3x+y

Step-by-step explanation:

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