[tex] ({3x}^{2} + 2x + 1) + ( {2x}^{2} - 4x - 5) + (3x - 1)[/tex]

Answers

Answer 1

Answer:

[tex]5x^2+x-5[/tex]

Step-by-step explanation:

[tex](3x^2+2x+1)+(2x^2-4x-5)+(3x-1)= \\\\(3x^2+2x^2)+(2x-4x+3x)+(1-5-1)= \\\\5x^2+x-5[/tex]

Hope this helps!


Related Questions

HELP ME PLEASEEE thanks

Answers

Answer:

47°

Step-by-step explanation:

Since x and 133° are supplementary (meaning they add up to 180°), x + 133 = 180 so that means x = 47°.

Alan can run 5 miles in 40 minutes. If he maintains the same pace, what is the greatest number of miles he can run in 160 minutes?

A. 40

B. 60

C. 20

D. 30

Answers

(c) 20 ; each mile takes 8 minutes, therefore if you divided 160 by 8 your product would be 20

Answer:

C)20

Step-by-step explanation:

Cuz 160/8 is 20

Determine the value of z. answers: A) 57° B) 53° C) 121° D) 239°

Answers

Answer: a

Step-by-step explanation:

Answer:

121

Step-by-step explanation:

The exterior angle  measurement is equal to the sum of the opposite interior angles

34+ 87 = z

121 = z

A line of best fit is drawn for the set of points shown on the graph.

A 2-column table with 10 rows. The first column is labeled x with entries 5, 6, 8, 8, 10, 11, 14, 15, 16, 18. The second column is labeled y with entries 8.9, 11.4, 13.6, 14, 15.3, 12.25, 22.1, 21.8, 20.8, 24.5. A graph shows the horizontal axis numbered 4 to 16 and the vertical axis numbered 4 to 24. A line increases from 0 to 17.
Which point is an approximate extrapolation for x = 30 from the line of best fit?

(23, 30)
(30, 38)
(44, 30)
(30, 72)

Answers

yo hice el examen y la tuve mal pero me dijo cual era la correcta y es (30,38)

I do the exam and I heve it wrong but the exam put what was the correct answer and it is (30,38)

option B

Equation of Linear Regression line is

y=1.14 x + 3.805

so, (30,38)  is an approximate extrapolation for x = 30 from the line of best fit.

What is line of regression?

A line of regression is that line which passes through none of the points, few points or all the points in the two dimensional coordinate plane.It tells value of one variable when another variable is known.

here, we have,

A line of best fit is drawn for the set of points shown on the graph.

from the given information,

we get,

for, x=30

y=1.14 × 30 +3.805

y=34.20 +3.805

y=38.005

y=38 (approx)

Equation of Linear Regression line is

y=1.14 x + 3.805

so, (30,38)  is an approximate extrapolation for x = 30 from the line of best fit.

So, Ordered pair is , (30,38)

Option B

To learn more on line of regression:

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Solve this problem for x:
2^2x -2^x -2=0

Answers

Answer:

x=1

Step-by-step explanation:

First, you shift the -2 to the other side. Your new equation is 2^2x -2^x=2. Then, you continue to solve and simplify the equation. Your final answer will be x=1.

Which of the following best describes the relationship between the chords NR and QS shown in the diagram below?

Answers

Answer:

C

Step-by-step explanation:

By observation, we can see very clearly that NR and QS are neither parallel nor perpendicular. Hence we can ignore A and B.

We notice that VT and VU are the same length.

Hence we can conclude that NR and QS must also be the same length (i.e they are congruent)

Therefore C is the answer.

In the equation, y = -4x + 10, what are the slope (m) and y-intercept (b)?

a. m = -4, b = -10
b. m = -4, b = 10
c. m = 10, b = -4
d. m = 10, b = 4

Answers

Answer:

Its B

Step-by-step explanation:

the y interceot is +10 so it is positie 10 and the slope is -4 so it is negative 4

What are the next two numbers in this pattern?
3,-9, 27, -81, ...

A 243, -729
B -135, 189
C-243, 729
D 135, -189



I really need your help if I get this right I’ll pass

Answers

The answer is A. 243, -729

The pattern of this is that they multiply each number by -3.

3*-3=-9
-9*-3=26
27*-3=-81

So you have to multiply -81 by -3. Then multiply that by -3 to get the second number

-81*-3=243
243*-3=-729

to determine the inverse of the given function change f(x) to y switch and y and solve for

Answers

Answer:

x, y, 4, 0

Step-by-step explanation:

To determine the inverse of the given function change f(x) to y switch x and y and solve for  y.

f(x) = sqrt(x - 4)

y = sqrt(x - 4)

x = sqrt(y - 4)

x^2 = y - 4

x^2 + 4 = y

y = x^2 + 4

The domain of the inverse is the same as the range of the original function.

inverse f(x) = x^2 + 4

x^2 + 4 >= 4

x^2 >= 0

x >= 0

The resulting function can be written as inverse f(x) = x^4 + 4, where x >= 0.

Answer:

x, y, 3, and 0

Solve and work out the value of a

Answers

Step-by-step explanation:

Since these angles are supplementary (meaning they have a sum of 180 degrees) we get 3a + 2a + 4a = 180° which simplifies to 9a = 180 and then a = 20°

Answer:

a = 20

Step-by-step explanation:

The angles form a straight line, which is 180 degrees

3a + 2a + 4a = 180

Combine like terms

9a = 180

Divide by 9

9a/9 =180/9

a = 20

I am giving you some data, I want you to make up 2 questions about probability using that data.

You have a bowl of Jelly Belly jelly beans. There are 5 flavors, 25 watermelons, 13 tutti fruitti, 45 cherry, 10 cinnamon, 32 buttered popcorn.

Answers

Answer:

What’s the probability of choosing a tutti fruitti and a cherry jelly bean?

What’s the probability of choosing a watermelon, replacing it, then choosing a buttered popcorn?

Step-by-step explanation:

Which statistic can not be determined from a box plot representing the scores on a math test?
the median score
the lowest score

the score that occurs most frequently
the highest score​

Answers

Answer:

the score that occurs most frequently

Statistics can not be determined from a box plot representing the scores on a math test is the score that occurs most frequently.

Definition of Box plot:

It displays the five-number summary of a set of data.

The five-number summary is

minimum scorefirst quartile median score third quartilemaximum score

In a box plot, we draw a box from the first quartile to the third quartile.

A vertical line goes through the box at the median.

Therefore, the score that occurs most frequently is the correct answer.

To know more about box plot, refer,

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Solve the equation 12 + 2x = 16

Answers

Answer:

[tex]x=2[/tex]

Step-by-step explanation:

[tex]12 + 2x = 16[/tex]

[tex]2x=16-12[/tex]

[tex]2x=4[/tex]

[tex]x=2[/tex]

297 miles in 11 gallons of gas what is the unit rate

Answers

Answer: 27 miles in 1 gallon

Step-by-step explanation:

297/11

The unit rate of 297 miles in 11 gallons will be 27 miles/gallons.

What are the ratio and proportion?

The ratio is the division of the two numbers.

For example, a/b, where a will be the numerator and b, will be the denominator.

We will be used when division is not possible wholly

For example 4/2 is divisible so we write 2 instant of 4/2 while 1/3 is not divisible so we write 1/3 instant of 0.33.

Proportion is the relation of a variable with another. It could be direct or inverse.

The ratio is very useful to determine complex calculation where decimal number become tough to solve.

Given,

297 miles in 11 gallons

297 miles ⇔ 11 gallons

Divide by 11 on both sides

297/11 miles ⇔ 11/11 gallons

27 miles ⇔ 1 gallon

So, 27 miles in 1 gallon.

Hence unit rate is 27 miles/gallon will be correct.

For more information about ratio and proportion

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Carly tried to solve an equation step by step.
Find Carly's mistake.

Answers

Answer:

Step 1 is incorrect

Step-by-step explanation:

Answer:

step 1

Step-by-step explanation:

solve the formula for calculating the perimeter of a parallelogram with sides b and c for c p = 2b+2c

Answers

p = 2b+2c
-2b -2b

p -2b =2c
/2 /2

p/2 -b =c
The answer is P/2-b=c.

Is figure B a scale copy of figure A. Yes or No Please help me thank you

Answers

Answer:

Yes

because they both face the same direction

and they triangle in shape

No.
It’s easy to notice that 4/2 isn’t equal to 8.9/3.6, or 11.3/5

please help❤️

A cannonball shot from the top of a building
can be modeled by the following equation:
h = –16(t = 3)2 + 189

Answers

Answer:

nole entiendo preguntale atu profe

I need help finding the area of the triangle plz. sorry I don't understand fractions that much

Answers

Answer:

[tex]24\frac{4}{15}\\\mathrm{Decimal:\quad }\:24.26666\\=24.27m^2[/tex]

Step-by-step explanation:

Area of right triangle formula is

[tex]A=\frac{ab}{2} \\\frac{5\frac{3}{5}\cdot \:8\frac{2}{3}}{2}\\\mathrm{Convert\:mixed\:numbers\:to\:improper\:fractions}:\quad 5\frac{3}{5}=\frac{28}{5}\\\frac{\frac{28}{5}\cdot \:8\frac{2}{3}}{2}\\\mathrm{Convert\:mixed\:numbers\:to\:improper\:fractions}:\quad 8\frac{2}{3}=\frac{26}{3}\\\frac{\frac{28}{5}\cdot \frac{26}{3}}{2}\\\mathrm{Multiply\:}\frac{28}{5}\cdot \frac{26}{3}\::\quad \frac{728}{15}\\=\frac{\frac{728}{15}}{2}[/tex]

[tex]\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{\frac{b}{c}}{a}=\frac{b}{c\:\cdot \:a}\\=\frac{728}{15\cdot \:2}\\\mathrm{Multiply\:the\:numbers:}\:15\cdot \:2=30\\=\frac{728}{30}\\\mathrm{Cancel\:the\:common\:factor:}\:2\\=\frac{364}{15}\\\mathrm{Convert\:improper\:fractions\:to\:mixed\:numbers}:\quad \frac{364}{15}=24\frac{4}{15}\\=24\frac{4}{15}\\\mathrm{Decimal:\quad }\:24.26666[/tex]

The area of this parallelogram is 120 mm2. Find the value of x. 9 mm 12 mm 15 mm 6 mm

Answers

Answer:

[tex]x=12\:mm[/tex]

Step-by-step explanation:

[tex]A=bh[/tex]

[tex]b \times h=120[/tex]

[tex]b \times 10=120[/tex]

[tex]b=120 \div 10[/tex]

[tex]b=12[/tex]

Dante is selling donuts outside a huge office building every morning. The first week
he made $25 selling donuts, the second week he made $45 the third week he made
$65! Everyone loved them and they are spreading the word. If this pattern continues
how much money will he be making in week 10?

Answers

Answer:

$205

Step-by-step explanation:

45 - 25 = 20

65 - 45 = 20

as you can see the common difference between the 3 consecutive numbers 25 , 45 and 65 is a constant (20)

so ,we are in an arithmetic sequence case with :

first term 25 common difference r = 20

Let’s label the sequence: Un

then

Un = U1 + (n-1)×r

    = 25 + (n-1)×20

    = 20n + 5

for n = 10 → U10 = 20(10) + 5 = 200 + 5 = 205

Can someone Help me?

Answers

Answer:

The answer for the surface area is 25.12

Step-by-step explanation:

By using the formula 1/3 x 3.14 x h x r^2

You would input the numbers and then multiply them all together to get the desired answer

please help and answer this for me

Answers

Answer:

Subtract 58 from both sides

Step-by-step explanation:

A triangle has angle measurements of 36°, 90°, and 54°. What kind of triangle is it?
A. acute B. right C. obtuse

Answers

Answer:

Right

Step-by-step explanation:

when a triangle has a 90 degree angle it is always right

Answer:

right angle triangle

Step-by-step explanation:

triangle consists of 90° causing it to be right angled

(27)^-2/3 is equal to

Answers

Answer:

1/9

Step-by-step explanation:

(27)^-2/3=(3^3)^-2/3= 3^(-2/3*3)= 3^-2= 1/3^2= 1/9

Answer:

=1/9

Step-by-step explanation:

Apply exponent rule:   a^-b=1/a^b

(27)^-2/3 = 1/(27)^2/3

Step-by-step method in attachment:

During a football game, a quarterback decides to run the ball 45 yards to score a touchdown. How many feet did
he run to score the touchdown? (round to whole number)​

Answers

Answer:

135

Step-by-step explanation: 45 times 3

Answer:

135 feet

Step-by-step explanation:

a yard is a little more  than a foot and we just round to

1 yard = 3feet so 45*3 is 135 feet

Two lines meet at a point that is also the endpoint of a ray. Set up and solve the appropriate equations to determine and

Answers

Answer:

Angle x=19°

Angle Y=53°  hopes this helps i might be wrong idk

Step-by-step explanation:

Since a right angle is 90° and a straight line is 180°,the other side(71+x)=90.Therefore,90-71=19,which is angle x.There is another straight line,since angle x is 19°.All you have to do is subtract 71+37+19 from 180 to get Angle Y.The answer is 53°.Angle X=90-71=19Angle Y=180-37-71-19

what is the slope of the line graphed below (3,6) (0,-1)

Answers

Answer:

B

Step-by-step explanation:

Answer:-2

Step-by-step explanation:

if -2 is a root of the equation 3x2 +7x + p = 0, find the values of k for which the roots of the equation x2 + k(4x + k - 1) + p = 0 are equal.

Answers

Answer:

first 0ne

Step-by-step explanation:

Which of the following shows how the number 7 can be rewritten with the difference of squares identity? (16-9)=(4+3)(4-3) (18-11)=(9+6)(9-5) (25-4)=(5+2)(5-2) (16-9)=-1(4+3)(4-3) (64-1)=(8+1)(8-1)

Answers

Answer:

A) (16-9) =(4+3)(4-3)

Step-by-step explanation:

Explanation:-

Given the number = 7

The difference of two numbers  are 16-9 =7

The difference of squares  

                                        4² - 3²  = 7

We will use formula

                 a² - b² = (a-b) (a+b)

                  4² - 3² = (4 -3) (4+3)

                 16 -9 =  (4 -3) (4+3)

Final answer:-

The number 7 can be rewritten with the difference of squares identity

16 -9 =  (4 -3) (4+3)

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