- x3 + 4x2 – 3x + 12 when x = -2​

Answer:

2.56

Step-by-step explanation:

14.7 - 1.9 = 12.8

12.8/5 (sides) =

n = 2.56

check:

2.56 * 5 = 12.8

12.8 + 1.9 = 14.7

Im sorry i cant help but if it lets you try to copy paste the question onto whatever you can

Answer: x=1 or x=−1

Step-by-step explanation: Step 1: Add 6 to both sides.

x2−6+6=−5+6

x2=1

Step 2: Take the square root.

x=±√1

BRAINLESS

Answer:

Step-by-step explanation:

a.) c = 9

To get a perfect square you must divide the bx or 6x in this situation then square it.

6/2 = 3

3^2 = 9

b.) (x - 1)(x - 5)

x^2 - 6x + 9 = -5 + 9

x^2 - 6x + 9 = 4

x^2 - 6x + 9 - 4 = 4 - 4

x^2 - 6x + 5 = 0

(x - 1)(x - 5)

x - 1 = 0

x = 1

x - 5 = 0

x = 5

Step-by-step explanation:

(3x² / 2 )° = 96° [ being corresponding angles ]

3x² = 192°

x² = 192/3

x² = 64

x² = (+ 8) ²

Therefore x = +8 and -8

Hope it helps. :)

Answer:

.5

Step-by-step explanation:

Answer:

C.) -3/2

Step-by-step explanation:

To find the slope you need to use the formula: m = y2 - y1/x2 - x1

Point: (-2,1) and (2,-5)

m = y2 - y1/x2 - x1

m = -5 - 1/2 - (-2)

m = -6/2 + 2

m = -6/4

m = -3/2

Answer:

m∠S = 142°

Step-by-step explanation:

If TR ≅ ST, then...

T≅S

R≅T

Answer:

Step-by-step explanation:

Answer:

New depth: 11.8 feet

Step-by-step explanation:

0.4 x 3 = 1.2 feet / 1.2 feet in 3 seconds

13 - 1.2 = 11.8

Hope this helps!

xoxo,

cafeology

Answer:

43.5 ft below the surface

Step-by-step explanation:

0.5*5= 2.5

-46+2.5= -43.5

Answer:

180 square centimeters

Step-by-step explanation:

Because the five squares are congruent, the 12 sides of the figure are all equal in length. Then the length of one side is 72/12 = 6 cm. Therefore, the area of each square is 36 sq cm and the area of the figure, 5 x 36, is 180 sq cm.

Answer:

table C

Step-by-step explanation:

function

* one object/ input must only have one image/ output

* only one-to-one relation and many-to-one relation is a fuction

table A

= one-to-many relation

= input 8 has two outputs ( -9 and -8 )

= not a function ❌

table B

= one-to-many relation

= input 7 has two outputs ( 12 and 13 )

= not a function ❌

table C

= one-to-one relation

= all input has only one output

= a fuction ✅

table D

= one-to-many relation

= input 10 has two outputs ( 0 and 4 )

= not a function ❌

Answer:

s=5

Step-by-step explanation:

Answer:

S = 5

Step-by-step explanation:

Subtract 27 from both sides

45 = 9s

divide by 9

s = 5

Answer:

y = 5x − 4.5

Have a safe and happy new years :)

Answer: s = 6

Step-by-step explanation:

just simply divide both sides.

12s / 12 = 72 / 12

s = 6

Answer:

What’s is the answer o need heelpp

Step-by-step explanation:

Recommended number of flowers for a garden of 24 square feet is 32 so option (D) will be correct.

A straight line on the coordinate plane is represented by a linear function.

A linear function always has the same and constant slope.

The formula for a linear function is f(x) = ax + b, where a and b are real values.

In another word, a linear function is a function that varies linearly with respect to the changing variable.

Given data is forming a linear function.

Since the slope of a linear function is always constant

Slope = difference in y's coordinate /  difference in x's coordinate

Lets say Garden area is x and the number of flowers is y

Then,

Slope = (y - 20)/(24-15) = (20-16)/(15-12)

(y - 20)/9 = 4/3

y = 12 + 20 = 32

Hence " Recommended number of flowers for a garden of 24 square feet is 32".

For more about the linear function,

brainly.com/question/21107621

#SPJ2

Answer:

Both of the arrowed ones are the sides

Answer:

25j=800 i may be wrong

Step-by-step explanation:

Answer:

21.98

Step-by-step explanation:

Answer:

-1

Step-by-step explanation:

if a is 8 plug it in to the problem, and you get 8 - 9 which is -1

Hope this helps!

Answer:

-1

Step-by-step explanation:

Answer:

$30.38

Step-by-step explanation:

Final Price = Original Price - Discount

Final Price = 75 - 41.25

Final Price = $33.75

Then its the additional 10%

So now you make your original cost $33.75 to make it easier so

Final Price = Original Price - Discount

Final Price = 33.75 - 3.375

Final Price = $30.38

Final Answer: $30.38

The final price Kelly will pay round to the nearest cent is $30 38¢

In mathematics, a percent is a number or ratio expressed as a fraction of 100. It is often denoted using percentage sign "%".

Now it is given that,

Discount = 55%

Additional discount = 10%

Original Price of Blue Sandals = $75

Original Price of Tan Sandals =  $68

Since Kelly bought blue sandels,

So, discount on Blue Sandals = 55% of $75

⇒ discount on Blue Sandals = 0.55 * $75 = $41.25

So, Cost of Blue Sandals = $75 - $41.25

⇒ Cost of Blue Sandals = $33.75

Now there is additional discount of 10%

Additional discount = 10% of $33.75

⇒ Additional discount = 0.10% * $33.75

⇒ Additional discount = $3.375

Thus, Final Cost of Blue Sandals = $33.75 - $3.375

⇒ Final Cost of Blue Sandals = $30.375

Round to the nearest cent final cost of Blue Sandals = $30 38¢

Thus, the final price Kelly will pay round to the nearest cent is $30 38¢

To learn more about Percentage visit :

brainly.com/question/24304697

#SPJ2

Answer:

The value of the car will be x - (0.15)x after a year.

Step-by-step explanation:

The car was 15% more when it first came out, and the price went down by 15% after a year.

Therefore, to solve this problem, we need to multiply 0.15 by the initial cost, which will tell you how much the car price decreased.

Then, we need to subtract this amount from x, or the initial cost, in order to find how much the car will be worth after a year.

Therefore, the value of the car will be x - (0.15)x after a year.

Hope this helps! :D

mario in mario 64 go: yayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayawhat am i

Answer:

Acording to my brain the answer is (-2,-1) In other Words The correct answer is Option B

Step-by-step explanation:

God Bless :)

The ordered pair that needs to be removed in order for the mapping to represent a function is either: (-2, -1) or (2, -2).

The term "function" refers to a relationship between a set of inputs and outputs. Just one output is connected to each input in a function, which connects inputs in that manner. Every function has a domain, co-domain, and range.

To represent a function, each input (x-value) must be associated with only one output (y-value). Therefore, in order for the mapping to represent a function, we need to remove any ordered pairs that violate this rule.

Looking at the options given, we can see that only one option has a repeated x-value:

O (-2, -1) and 0 (2, -2)

Both of these ordered pairs have the same x-value (either -2 or 2), but different y-values. This means that they violate the rule that each input must be associated with only one output.

Therefore, the ordered pair that needs to be removed in order for the mapping to represent a function is either:

O (-2, -1)

or

0 (2, -2)

We need to remove one of these ordered pairs to make the mapping a function.

To learn more about the function;

brainly.com/question/28303908

#SPJ7

Answer:

x=12

Step-by-step explanation:

Im not sure which measure you're talking about, but I'll show you what I did here:

A triangle = 180 degrees.

4x + 8x + 4x =16x

-8 - 1 - 3 = -12

180 = 16x - 12        -Add 12 to both sides

192 = 16x               -divide by 16 to get x by itself

12 = x

Angle A = 88 degrees (8 times 12 then subtract 8)

Angle B = 47 degrees (4 times 12 then subtract 1)

Angle C = 45 degrees (4 times 12 then subtract 3)

Thats insane tho!

Whats ur aops class that you take?

Answer:

hiii

your answer is option d

HOPE IT HELPS YOU OUT PLEASE MARK IT AS BRAINLIEST AND FOLLOW ME PROMISE YOU TO FOLLOW BACK ON BRAINLY.IN

Answer:

y = 7x + 1

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 7 and (0, 1 ) ← crosses y- axis ⇒ c = 1

y = 7x + 1 ← equation of line

Answer:

[tex]\boxed {\boxed {\sf 98 \ Small \ Cups}}\\\\\boxed {\boxed {\sf 57 \ Large \ Cups}}[/tex]

Step-by-step explanation:

Let's make a system of equations.

First, define the variables.

Let s= small cups and g= large cups

Next, make 2 equations. 1 for the money and 1 for the number of cups.

Money

Number

Here is our system of equations:

[tex]1.25s+2.50g=265 \\s+g=155[/tex]

Now, solve. Let's isolate a variable in the 2nd equation, so we can plug it in after.

Now we know that s is equal to 155-g. We can substitute (155-g) in for s in the first equation.

[tex]1.25s +2.50g=265[/tex]

[tex]1.25(155-g)+2.50g=265[/tex]

Distribute the 1.25

[tex]193.75-1.25g+2.50g=265[/tex]

Work to isolate the variable. Subtract 193.75 from both sides of the equation and combine like terms on the left.

[tex]193.75-1.25g+2.50g=265-193.75[/tex]       (Subtract 193.75)

[tex]-1.25g+2.50g=265-193.75[/tex]      

[tex]1.25g=71.25[/tex]      (Combine like terms).

1.25 and g are being multiplied. The inverse of multiplication is division. Divide both sides by 1.25

[tex]1.25g/1.25=71.25/1.25\\g=71.25/1.25\\g=57[/tex]

Now we know that 57 large cups were sold. Plug 57 back into the original second equation to find the small cups.

[tex]s+g=155[/tex]

[tex]s+57=155[/tex]

Subtract 57 from both sides of the equation to isolate the variable, s.

[tex]s+57-57=155-57\\s=155-57\\s=98[/tex]

Ashley sold 57 large cups and 98 small cups.

small cup she sold = x = 98

large cup she sold = y =57

Answer:

y=0

Step-by-step explanation:

Exponential functions, always have a horizontal asymptote. A function of the form f(x) = a (b^x) + c always has a horizontal asymptote at y = c. In this case the function is

[tex]y=3^{x+2} \\\\We\ can\ rewrite\ it\ like\\\\\y=3^x.3^2\\y=9(3^x)[/tex]

so it doesn't have a +c which means the horizontal asymptote is y = c = 0

y = 0 is the horizontal asymptote

Answer:the first one for miles is d and the second one for minutes is b

Step-by-step explanation:

Step-by-step explanation:

Use PEMDAS

[tex]\begin{array}{ccc}214.8-(4^2+3)\times4&\\214.8-(16+3)\times4&Evaluate\\214.8-19\times4&Add\\214.8-76&Multiply\\138.8&Subtract\end{array}[/tex]