Answer the question below!!! For brainliest!!

Answer:

b)  [tex]4x^2-12x+9=0[/tex]

Step-by-step explanation:

We can use the discriminant [tex]b^2-4ac[/tex] to determine how many real solutions a quadratic equation in the form [tex]ax^2+bx+c=0[/tex] has.

[tex]5x^2+9x-4=0[/tex]

[tex]b^2-4ac=9^2-4(5)(-4)=161 > 0\implies \textsf{2 solutions}[/tex]

[tex]4x^2-12x+9=0[/tex]

[tex]b^2-4ac=(-12)^2-4(4)(9)=0 \implies \textsf{1 solution}[/tex]

[tex]-9x^2+6x+1=0[/tex]

[tex]b^2-4ac=6^2-4(-9)(1)=72 > 0 \implies \textsf{2 solutions}[/tex]

[tex]-2x^2-7=0[/tex]

[tex]b^2-4ac=0^2-4(-2)(-7)=-56 < 0 \implies \textsf{no solutions}[/tex]

Answer: A

Step-by-step explanation: It looks like it matches up to the y value, plus d has 6 points and c has two points in the same area and b doesn’t look as good as a

Answer:

B

Step-by-step explanation:

Domain is basically x. The left side is connecting with the right side (y).

this is why the domain is B

Hope this helps!

Answer: B.

Step-by-step explanation:

Answer:

4 Hours and 32 minutes

Step-by-step explanation:

Let's first find the amount between 9:15 to 2:17

The difference between 9:00 and 2: 00 is 5 Hours

Now the minutes ->  17-15 = 2

Thus, the difference is 5 Hour and 2 Minutes

Then She took a 30 minutes break for lunch.

Let's convent all to minutes:

1 Hour = 60

Then 60  x 5  = 300

Plus the 2 minutes is

302

Now 302 minutes - 30 minutes = 272 minutes

Now convent back to Hour

Thus, 272/60 =4 with a remainder of 32.

Hence, it took stephanie 4 hour and 32 minutes to finish her SOL test.

~Lenvy

Answer:

no ,yes yes I think.

Step-by-step explanation:

Answer:

Whether a net force acts on the object.

Step-by-step explanation:

Newtons first law states that an object will remain at rest unless it is acted upon by an imbalanced force.

Step-by-step explanation:

hmmm.

the picture tries to tell me that the 2 more or less horizontal lines are not parallel.

yet the answer options seem to indicate that they are parallel. otherwise none of the answer options make any sense.

so, assuming the 2 lines are meant to be parallel :

1 and 3 : corresponding angles.

2 and 7 : alternate interior angles.

8 and 3 : vertical angles.

6 and 7 : supplementary angles.

Answer:

$134.40

Step-by-step explanation:

The markup is 28% of 105, or .28(105) = $29.40

Thus the retail price is $105 + $29.40 = $134.40

The price of the bookcase in the furniture store, after a 28% markup on the wholesale price, is $134.40.

To find the price of the bookcase in the furniture store after a 28% markup on the wholesale price, we need to add the markup amount to the wholesale price.

The markup amount is calculated by multiplying the wholesale price by the markup percentage (expressed as a decimal). In this case, the markup percentage is 28%, which is equivalent to 0.28 as a decimal.

Markup amount = Wholesale price * Markup percentage

Markup amount = $105 * 0.28

Markup amount = $29.40

Now, to find the price of the bookcase in the furniture store, we add the markup amount to the wholesale price:

Price in the furniture store = Wholesale price + Markup amount

Price in the furniture store = $105 + $29.40

Price in the furniture store = $134.40

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Answer:

9

Step-by-step explanation:

PEMDAS ✨✨

8 + (8)2 / 4 (1)

8 + 4/4 (1)

8 + 1

9

Answer:

- 39

Step-by-step explanation:

Step 1:

2x + 6 = - 72         Equation

Step 2:

2x = - 78      Subtract 6 on both sides

Step 3:

x = - 78 ÷ 2         Divide

Answer:

x = - 39

Hope This Helps :)

Answer:

2x+6=-72

-6 -6

6 cancles out on the left side.

2x=-78

divide 2 on each side

66/2=-39

Answer:

y=3.78

Step-by-step explanation:

Answer:

3.78

Step-by-step explanation:

Answer:

I just answered your other question. BTW, Its two 12-inch boxes, and three 8-inch boxes

Step-by-step explanation:

PLEASE MARK ME AS BRAINLIEST I REALLY WANT TO LEVEL UP

Answer:

[tex](4;3)[/tex]

Step-by-step explanation:

Add the two equations together

[tex]I+II: x+7y+2x-7y=25-13 \rightarrow 3x=12\rightarrow x =4[/tex]

At this point i'd rather replace x=4 in the first equation to get [tex]4+7y=25 \rightarrow 7y=21 \rightarrow y=3[/tex]

To keep eliminating you multiply the first by 2 and subtract the second

[tex]2\times I -II: 2x+14y-2x-(-7y)=50-(-13)\rightarrow 21y=63 \rightarrow y=3[/tex]

Answer:

B. 8.905, 8.007, 7.903, 7.093  :)

Step-by-step explanation:

Answer:

140

Step-by-step explanation

Answer:140

Step-by-step explanation:

ur welcome

Answer:

x = -6

Step-by-step explanation:

Add seven to both sides and divide by eight.

8x = -48

x = -6

Hey there!

Let's solve this equation!

Step 1:

[tex]\bold{8x+(-7)=-55}[/tex]

[tex]\bold{8x-7=-55}[/tex]

Step 2:

[tex]\bold{8x-7+7=-55+7}[/tex]

[tex]\bold{8x=-48}[/tex]

Step 3:

[tex]\bold{x=-6}}[/tex]

Hence, the answer is

[tex]\boxed{\boxed{\bold{x=-6}}}[/tex]

Hope everything is clear.

Let me know if you have any questions; if so, please comment.

#LearningDoesn'tEnd

#LearningIsFun

Answer:-10-9=

-19

Step-by-step explanation:

Answer

5

Step-by-step explanation:

if you replace the 55 with a 9 you get 5

Answer:

71.4

Step-by-step explanation:

you wiil plus it by 30.4+27+14 that is how i got71.4

Answer:

The sequence of transformations involved is a reflection across the x axis, followed by a reflection across the y = x line

Step-by-step explanation:

The polygon ABCD is shown in the image attached. The coordinates of the polygon are A(-6, 6), B(-4, 6), C(-4, 4), D(-6, 2), while the polygon A'B'C'D' is at A'(-6, -6), B'(-6, -4), C'(-4, -4), D'(-2, -6)

A transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, translation, dilation and rotation.

If a point O(x, y) is reflected across the x axis, the new coordinate is O'(x, -y).

If a point O(x, y) is reflected across the y = x line, the new coordinate is O'(y, x)

Hence if polygon ABCD is reflected across the x axis, the new coordinates are A*(-6, -6), B*(-4, -6), C*(-4, -4), D*(-6, -2). If a reflection across the y = x line, the new coordinates are A'(-6, -6), B'(-6, -4), C'(-4, -4), D'(-2, -6)

Answer:

Polygon ABCD goes through a sequence of rigid transformations to form polygon A′B′C′D′. The sequence of transformations involved is a reflection across the y-axisy = -x, followed by a reflection across the line y = xy = -x.

Step-by-step explanation:

Answer:

25x5-4=b

Step-by-step explanation:

The equation to determine the number of baseball cards in Shaun's collection is b = (25 - 4) × 9

Number of pages in the album = 25 pages

Number of empty pages = 4

Number of full pages = 25 pages - 4 pages = 21 pages.

Number of cards that each page can hold = 9 cards.

Therefore, the equation to determine the number of baseball cards in Shaun's collection will be:

b = (25 - 4) × 9

b = 21 × 9

b = 189 cards.

There are 189 cards in the collection.

Read related link on:

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Answer:

hope you have understood

Answer:

1/2 or 50%

Step-by-step explanation:

there is 6 numbers non a dice 1-6

1, 3, and 5 are odd

2, 4, and 6 are odd

3/6 are odd and 3/6 are even

3/6 is simplified to 1/2

1/2 as percent is 50%

Answer: absolute value

Step-by-step explanation:

Sorry for my writing it’s horrible ik I’m in a hurry rn lol

Answer:

4680 dollars

Step-by-step explanation:

Hello, I'd love to help you!
We know that:

-Original price is 7200 dollars

-Manuel only paid for 65% of it

   -> think of it this way: think of the overall price as a pie; Manuel only ate              65% of it

To calculate how much Manuel paid, we can multiply 7200 times 0.65 (percentage in decimal form), which equals 4680 dollars.

Answer: 211 miles

Step-by-step explanation: An equation for this could be:

base fee + additional charge (miles driven) = total charge

19.99 + 0.86(x) = 201.45

0.86(x) = 201.45 - 19.99

0.86(x) = 181.46

x = [tex]\frac{181.46}{0.86}[/tex] = 211 miles

Answer:

Step-by-step explanation:

f(-2)= x^2+2x-10= (-2)^2+2(-2)-10= 4-4-10= 0-10 = -10