Mathematics High School

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Use completing the square to solve for x in the equation (x-12)(x+4)-
O x= -1 or 15
O x= 1 or 7
x=4+ JAT
O x=4573

Answers

Answer 1

Answer:

x = 4 ± [tex]\sqrt{73}[/tex]

Step-by-step explanation:

Answer 2

d it is the answer all the way at the bottom

Related Questions

A rectangular parking lot has an area of 1650 yd.² the length of the parking lot is 55 yards what is the width of the parking lot in yards

Answers

Answer:

The width of parking lot is 30 yards.

Step-by-step explanation:

Given that:

Area of rectangular parking lot = 1650 yards square

Length of parking lot = 55 yards

Width of parking lot = x yards

Area of rectangle is given by:

A = Length * Width

1650 = 55x

Dividing both sides by 55

[tex]\frac{55x}{55}=\frac{1650}{55}\\x=30[/tex]

Hence,

The width of parking lot is 30 yards.

Evaluate the function. g(x) = 3x^2 – 2x + 5 Find f(2)

Answers

Answer:

Step-by-step explanation:

Replace X with 2

Evaluate the function. g(x) = 3x^2 – 2x + 5 Find f(2)

g(x) = 3(2)^2 – 2(2) + 5

Next conduct PEMDAS

Exponents are first so solve 2^2 which is 2 x 2 = 4

g(x) = 3(4) – 2(2) + 5

Next step is multiplication multiply 3 x 4 and 2x2

g(x) = 12 – 4 + 5

conduct adding and subtracting left from right

g(x) = 13

Which verbal expression does NOT represent 9-x?

x less than nine
subtract x from nine
x decreased by nine
the difference of nine and x

Answers

Answer: the difference of nine and x

Maria's Grocery Store buys grapefruit at a cost

of 5 for a dollar. They sell them at a price of 5

for three dollars. How many must they sell in

order to make a profit of ten dollars?

Answers

Answer: 25 grapefruits

Step-by-step explanation:

They buy grapefruit at a price of 5 per dollar. This means that the price per grapefruit is:

= 1 / 5

= $0.20 per grapefruit.

They then sell at a price of 5 per $3. The selling price per grapefruit is:

= 3 / 5

= $0.60

The profit per grapefruit is:

= 0.60 - 0.20

= $0.40

In order to make a profit of $10, they should sell:

= 10 / 0.4

= 25 grapefruits

A math teacher said that 18 out of 25 students passed the test. What percent of the students did NOT pass the test?

Answers

Answer:

28% of the class didn't pass the test.

Step-by-step explanation:

25 - 18 = 7

7/25 = 0.28 or 28%

Thus, 28% of the class didn't pass the test.

Is this a function? Yes or no
{(2,5), (3,6), (4,7), (5,8), (6,9)}

Answers

Answer:

Hope I helped!

Step-by-step explanation:

Answer: no

Step-by-step explanation: the domain value 6 is paired with both 9 and 10. 3. {(2, 2), (−1, 5), (5, 2), ... yes. 28. {(4, 5), (3, −2), (−2, 5), (4, 7)}. ANSWER: no. 29. y = −8 no.

What is 6/87 of 45638???????

Answers

Answer:

3,147.44828

Step-by-step explanation:

[tex] \frac{6}{87} \: of \: 45638 \\ \\ = \frac{6}{87} \times 45638 \\ \\ = 6 \times 524.574713 \\ \\ = 3,147.44828[/tex]

help this one pplss

Answers

Answer:

x = 10, y = [tex]\frac{4}{3}[/tex]

Step-by-step explanation:

The opposite sides of a parallelogram are congruent.

For LMNO to be a parallelogram then

ON = LM and OL = NM, that is

ON = LM

7x - 6 = 6x + 4 ( subtract 6x from both sides )

x - 6 = 4 ( add 6 to both sides )

x = 10 , then

NM = x - 9 = 10 - 9 = 1 and

OL = NM , that is

3y - 3 = 1 ( add 3 to both sides )

3y = 4 ( divide both sides by 3 )

y = [tex]\frac{4}{3}[/tex]

Yeah that person is right

please help!!!!! Need solvingg

Answers

Answer:

A, 22

Step-by-step explanation:

DOF-DOE=EOF

50-28=22 degrees

Answer:

A=22

Step-by-step explanation:

∠DOF=∠DOE+∠EOF

so ∠EOF=∠DOF-∠DOE=50°-28°=22°

Sam had 1 1-2 m of rope. He cut off 5-8 m and used it for the project. How much does Sam have left

Answers

1 1/2 m and 5/8 meter need to have the same denominator in order to subtract.

1 1/2 is equivalent to 12/8
Now 5/8 and 12/8 have the same denominator so you can subtract.
12/8-5/8= 7/8
7/8 m is left

The cost of a new television is $948. If the value of the television decreases by 4.5% every year, which function models the value of this new television x years after it was purchased?

Answers

Answer:

t(x) = 948(0.955)^x

Answer:A

Step-by-step explanation:

Kate has 48 softballs. She wants to divide them evenly among b softball bags. Which expression represents how many softballs she should put into each bag?

Answers

Answer:

Softballs = (48/b)

Step-by-step explanation:

Given that,

Total number of softballs = 48

She wants to divide them evenly among b softball bags.

We need to find an expression that represents how many softballs she should put into each bag.

As it is dividing among b softball, it means we divide 48 and b. So,

[tex]s=\dfrac{48}{b}[/tex]

Hence, the required expression is (48/b).

!!PLEASE HELP!!!!!! x=___

Answers

Answer:

Step-by-step explanation:

If 6x+3y=−1 and
5x+y=8 are true equations, what would be the value of
−x−2y?

Answers

Answer: 9

x = 2.778

y = -5.889

-x -2y

= -2.778 - 2(-5.889)

= 9

what is the radius if the circumference is 1.0

Answers

Answer:

r = 0.16

Step-by-step explanation:

C = 2·π·r

1 = 2·π·r

1/2 = π·r

0.5 = π·r

0.5 / 3.14 = r

0.16 = r

What stamens are true help please

Answers

You spelled statements wrong

Complete the solution of the equation. Find the
value of y when x equals 15.
-3x - y = -51

Answers

Answer:

The solution of the equation y = 36

Step-by-step explanation:

Explanation:-

Given equation -3x-y =-51

Given that x =15 in equation -3x-y=-51

⇒ - 3(15) - y = -51

⇒ - 15 - y =-51

⇒ -15+ 51 = y

⇒ y = 36

What is the value of x and y?

Answers

Answer:

8x, 5y

Step-by-step explanation:

a dunno if thats wha ya meant but theres already an answer filled in there a think

can you pls help me i really need help

Answers

Answer:

UMM SO IM NOT CERTIAN BUT IMMA DO MY BEST

Step-by-step explanation:

SO 1 WOULD BE: 12X1.5 AND THATS 18

AND 2 IS: 16X1818 AND THATS 29088

AND THREE IS: 28 DIVIDED BY 4 WHICH IS 7

AND THEN 4 IS: 32 DIVIDED BY 8 WHICH IS 4

6. A 140-meter rope is cut into two pieces. One piece is 20 meters longer
than 3 times the other piece. How long is the smaller of the two pieces?

Answers

140=3x+20+x
140=4x+20
-20 -20
120=4x
/4 /4
30=x
The smaller piece is 30 meters

After solving the equation, the smaller piece length of the rope will be 30 meters.

What is an equation?

Equations are mathematical expressions that have two algebra on either side of an equal (=) sign. The expressions on the left and right are shown to be equal to one another, demonstrating this relationship. L.H.S. = R.H.S. (left-hand side = right side) is a fundamental simple equation.

As per the data provided in the given question,

3x+20+x = 140

4x+20 = 140

4x = 120

x = 30 meters

The smaller piece of the rope is of 30 meters.

To know more about an equation:

https://brainly.com/question/10413253

#SPJ2

Solve |2x-5|= 4
Need in 5 minutes

Answers

Answer:

x=4.5

Step-by-step explanation:

2x-5=4

2x=9

x=4.5

X= 9/2, 1/2 or x= 4.5 , 0.5

I'm in 8th grade I need help with this question please help me

Answers

In slope intercept form it would be y=10+6x

can someone help out ?? question is "The cost of Caroline’s cell phone plan is shown below in the table. What is the equation that best represents the the total cost, y, after x number of months?

Answers

Answer:

y = 32x

We notice that we multiply the number of months by 32

Lines l and m are parallel and a and b are parallel. Find the measure of angle 10 if measure of angle 1 is 62.

please help

Answers

well since the lines l and m are straight, their measures would be 180. So if you subtract 62 from 180 you'd get angle 2=118. since angles 2 and 10 are the same angle, 10 would also have a measure of 118

Basically ur answer is angle 10=118

Guys please help it’s urgent!! I tried, my friend tried, my mom tried, my brother tried, and no one can get the answer she wants

Answers

Answer:

#13050

Step-by-step explanation:

lxw

30x35= 1050

Answer:

and now i tried

Step-by-step explanation:

hello new challenger (:<

which fraction is equvalent to a terminating decimal

Answers

Just divide the numerator by the denominator.If you end up with a remainder of 0 then you have a terminating decimal.

a machine at a graphic design studio produces paper labels for juice bottles. This graph represents the number of labels produced over time.

Based on the graph, how many labels are produced per minute?

50 labels/minute
75 labels/minute
100 labels/minute
150 labels/minute

Answers

Answer:

150 labels/ minute

Step-by-step explanation:

As you can see on the graph there is a point on (1,1 1/2)=150/1

Also 150*2=300 so it all makes sence

Which is the same as 0.25?

Answers

Answer:

[tex]\frac{25}{100}[/tex]

Step-by-step explanation:

Hey there !!!!!

to find the correct answer to this question you just divide :

the options are 25/10 , 2/5 , 10 / 25 and 25/100

so, you divide each one of them :

25/10 = 25 ÷ 10

2/5 = 2 ÷ 5

10/25 = 10÷25

25/100 = 25÷100

if you divide each one of them:

25 ÷ 10 = 2.5

2 ÷ 5 = 0.4

10÷25 = 0.4

25÷100 = 0.25

therefore:

25/100 is the answer

have a wonderful day

Which statement is false?
A. Every rational number is also an integer.
B. No rational number is irrational.
C. Every integer is also a rational number.
D. Every irrational number is also real.

Answers

iI think that c because it is inside the integers are inside the rationals

True or false: the following graph demonstrates a proportional relationship between y and x. Explain.

Answers

False, it doesn't cross through the origin and it's addition.

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⚠️⚠️⚠️⚠️HELLPP⚠️⚠️⚠️ Use completing the square to solve for x in the equation (x-12)(x+4)- O x= -1 or 15 O x= 1 or 7 x=4+ JAT O x=4573

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⚠️⚠️⚠️⚠️HELLPP⚠️⚠️⚠️

Use completing the square to solve for x in the equation (x-12)(x+4)-
O x= -1 or 15
O x= 1 or 7
x=4+ JAT
O x=4573