What is the discriminant of the quadratic equation 6x2
9x – 8 = 0?
-111
273
111
-273

Answer:

m∠BCD = 90°

∠BCD is a right angle

Step-by-step explanation:

If a ray bisects an angle, that means it divides the angle into two equal parts in measure

∵ Ray CE bisects ∠BCD

→ Means divide it into two angles BCE and ECD which equal in measures

∴ m∠BCE = m∠ECD = [tex]\frac{1}{2}[/tex] m∠BCD

∵ m∠BCE = 3x - 6

∵ m∠ECD = 2x + 11

→ Equate them to find x

∴ 3x - 6 = 2x + 11

→ Add 6 to both sides

∵ 3x - 6 + 6 = 2x + 11 + 6

∴ 3x = 2x + 17

→ Subtract 2x from both sides

∵ 3x - 2x = 2x - 2x + 17

∴ x = 17

∵ m∠BCE =  [tex]\frac{1}{2}[/tex] m∠BCD

→ Substitute x in the measure of ∠BCE to find it, then use it to

   find m∠BCD

∵ m∠BCE = 3(17) - 6 = 51 - 6

∴  m∠BCE = 45°

∵ 45 = [tex]\frac{1}{2}[/tex] m∠BCD

→ Multiply both sides by 2

∴ 90 = m∠BCD

∴ m∠BCD = 90°

→ The measure of the acute angle is less than 90°, the measure of

   the obtuse angle is greater than 90°, and the measure of the

   right angle is 90°

∴ ∠BCD is a right angle

Answer:

Step-by-step explanation:

It’s 10 pieces in all before people ate it.

Answer: 2 . (7)

Step-by-step explanation:2 7/9 equals to 2.(7)

It is, a so called, 'repeating' decimal

`~hope i helped~

Answer:

Its a,c and e

Step-by-step explanation:

I just took the quiz

Answer: The cost of each baseball cap = $15.

Step-by-step explanation:

Let x = cost of each baseball cap

Given; cost of each baseball jersey= $45

Total coast of 3 baseball caps and 1 baseball jersey = $90

i.e. [tex]3x+45=90[/tex]

[tex]\Rightarrow\ 3x=45\\\\\Rightarrow\ x=\dfrac{45}{3}\\\\\Rightarrow\ x= 15[/tex]

Hence, the cost of each baseball cap = $15.

Answer: it is A have a good day

Step-by-step explanation:

Answer:

7.01×10^14 is the answer

Answer:

Please check answer for explanation

Step-by-step explanation:

The independent variable is x

The dependent variable is y

The domain is the range of values of x

That will be 1-4

Now let’s get the range, the range just represent the y-values of the terms in the domain

at x = 1

y = 0.75(1) + 2 = 2.75

at x = 4

y = 0.75(4) + 2 = 3 + 2 = 5

The range is 2.75 to 5

Answer:

four more than 1/3 would be 1 and 2/3

Step-by-step explanation:

9514 1404 393

Answer:

  (1/3)x +4

Step-by-step explanation:

One-third x is ...

  (1/3)x

Four more than that is ...

  (1/3)x +4

_____

Additional ways this can be written

  1/3x +4

  4 +1/3x

  x/3 +4

  4 +x/3

*see attachment

Answer:

D. Output = 6 - Input

Step-by-step explanation:

The output is the y-value, while the input is the x-value. The coordinates are represented as (x, y), and are graphed in the figure attached below.

Let's consider the function and see which rule best describes the function.

Considering the point (1, 5), the rule, output = 6 - input, applies.

Let's check it out:

Output is 5, input is 1. Substitute 1 as input into the rule, Output = 6 - input, and see if it would give you 5 as output:

Output = 6 - 1

Output = 5

If you try another coordinate pair of the function, the same rule will apply.

Therefore, the best answer is D. Output = 6 - Input

Answer:

4

Step-by-step explanation:

1.25* 4=5

5-3=2

Answer:

3/4

Step-by-step explanation:

The distance between the two points is five.

[tex]d=\sqrt{((x2-x1)^2+(y2-y1)^2)} \\\\(x2-x1) = (3 - 7) = -4\\\\(y2-y1) = (7 - 4) = 3\\\\(-4)^2 + (3)^2 = 16 + 9 = 25\\\\\sqrt{25} =5[/tex]

Answer:

The area of the larger square is 16 times larger than the area of the small square.

Answer:

x = 48

Step-by-step explanation:

0.75x - 9 = 27 / + 9

0.75x = 36 / : 0.75

x = 48

Answer:

ASA congreunce

Step-by-step explanation:

Answer:

this is the math part of Brainly...  try the literature part for book reviews

Step-by-step explanation:

Answer: 6.42 × 10^ − 8

Hope this helps!

The number 0.0000000642 in scientific notation is written as; 6.42 × 10^ − 8

The number is written in the form  [tex]a \times 10^b[/tex] where we have   [tex]1 \leq a < 10[/tex]

The number b shows the order, which is the most important figure for which scientific notation is used. It tells us how much order large or small a value is in powers of 10.

A Better readability due to compact representation , the value in terms of power of 10 is known, which helps in easy comparison of quantities differing by a large value.

Here The number 0.0000000642 in scientific notation is written as;

[tex]6.42 \times 10^{ -8}[/tex].

Learn more about scientific notation here:

https://brainly.com/question/3112062

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Answer:

m=-4

Step-by-step explanation:

hope that helps:)

Answer:

-4

Step-by-step explanation:

m= - 13 + 9

calculate

__________

solution

m=-4

Answer: 7 +2x

Step-by-step explanation:

7 plus twice a number

Twice a number - 2x

7 plus 2x

Answer:

x=0

Step-by-step explanation:

to solve the equation:

2(x) = 3x²+ 2x

swap the sides:

3x² = 0

Divide both sides:

x²=0

Solution:

x=0

Answer:

22. 18

23. 10

Step-by-step explanation:

22

23

Answer:

-4

Step-by-step explanation:

m=slope in y=mx+b

Answer:

-4

Step-by-step explanation:

y=mx+b

m=slope

b=y-intercept

-4=m(slope)

3=b(y-intercept)

Hope the graph wasn't to confusing :)

I hope this helps! :)

Answer:

-287

Step-by-step explanation:

If x + y = z, then z - y = x and z - x = y. Since 260 + x = -27, then -27 - 260 = x.

You can change the signs for a moment but you need to change them back at the end. 27 + 260 = 287, flip the signs, -27 - 260 = -287.

Answer: 3^3 x 4^3

Here you go!

3^3 x 4^3

ok brainly is asking me to put more characters in my answer so yeah im doing that

Answer:

which principle prevents a brach from abusing  its power

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

16/20=0.8 therefore she received an eighty percent.

Answer:

Option A

Step-by-step explanation:

Options B, C, and D are examples of ridged transformations. Ridged transformations are transformations that  keep the pre-image and image congruent.

A dilation would change the actual size of the pre-image to make the image, so they would be not congruent in a dilation.

Hope this helps.

The correct options are Reflection, Translation and Rotation​.

A transformation is a general term for four specific ways to manipulate the shape and/or position of a point, a line, or geometric figure.

Reflection, Translation and Rotation​ are examples of rigid transformations, and we know that a rigid transformation is a transformation that doesn't change the size or shape of a geometric figure, a special kind of transformation that doesn't change the size or shape of a figure.

There are three different types of transformations: translation, reflection, and rotation.

Whereas,

A dilation would change the actual size of the pre-image to make the image, so they would be not congruent in a dilation, it can enlarge or shrink the image.

Hence, Reflection, Translation and Rotation​ are the transformation which preserve the preimage.

For more references on transformation, click;

https://brainly.com/question/11709244

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Answer:

Brad has been on the team for 8 years. Apply that and that means that Anderson has been on the soccer team for 2 years.

Step-by-step explanation:

I dont know how to explain lol i made an equation and figured it out

Step-by-step explanation:

let x be the number of years that Zach has been on the soccer team and y the number of years Anderson has been on the soccer team.

So, reading our problem it seems that

x=5y-2

x+y=10

replacing x on the second formula we take that 5y-2+y=10

6y-2=10

6y=12

y=2

so x=5y-2=5*2-2=10-2=8

Answer:

C. 25x+12y+4≤ 130

Step-by-step explanation:

Each ticket cost $25, so x would be the number of tickets she has to buy.

25x

Each T-shirt cost $12, so y would be the number of T-shirts she can buy.

12y

And since there is an service fee for the entree purchase, that's another $4.

+4

The cost of everything has to be less than $130, so the equation would be:

25x+12y+4≤ 130

the answer is 1/18 i belive bc in the way u asked this is kinda confusing so im sorry if im wrong

Answer:

7.5 × 10²

Step-by-step explanation: