Find the sum. Write your answer in standard form.
(7x +13) + (x3 + 4x2 – 8)

Answers

Answer 1

Answer:

. Simplify: (4x2 - 2x) - (-5x2 - 8x).

Solution:

(4x2 - 2x) - (-5x2 - 8x)

= 4x2 - 2x + 5x2 + 8x.

= 4x2 + 5x2 - 2x + 8x.

= 9x2 + 6x.

= 3x(3x + 2).

Answer: 3x(3x + 2) Step-by-step explanation:

Answer 2
The answer is 4x^2+10x+5

Related Questions

The price of a watch was increased by 20% to £198.
What was the price before the increase?

Answers

Answer:

$165 Hope this helps! May I have brainliest? I need to level up?

Step-by-step explanation:

To find the original price before the increase, divide the new price by 1 + the percent of increase.

198 / 1.20 = 165

The original price was $165

Show all of your work. Simplify the expression: - 3a + 7 + 5a​

Answers

Answer:

2a + 7

Step-by-step explanation:

-3a + 7 +5a

subtract the negative 3 from the 5

2a + 7

Answer: it would be 2a+7

Step-by-step explanation: Hope this help :D

Find the volume of the sphere.
Either enter an exact answer in terms of 7 or use 3.14 for I and round your final answer to the nearest hundredth.
units

Answers

Answer:

Volume of the given sphere = 4.19 units³

Step-by-step explanation:

Volume of a sphere is given by the expression,

V = [tex]\frac{4}{3}\pi r^{3}[/tex]

Here, r = radius of the sphere

From the picture attached,

Radius of the sphere 'r' = 1 unit

Volume of the given sphere =  [tex]\frac{4}{3}\pi (1)^3[/tex]

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

                                               = [tex]\frac{4}{3}(3.14)[/tex]

                                               = 4.187

                                               ≈ 4.19 units³

Solve for m:
598 + 15.75m < 850

Answers

Answer:

m < 16

Step-by-step explanation:

598 + 15.75m < 850

15.75m < 850 - 598

15.75m < 252

m < 16

How can you translate words into equations?

Answers

Answer:

try to look out for words such as more than, less than, twice as much, half as much, in addition to, took away something, etc

Step-by-step explanation:

hope this helped!

Write a positive or negative integer that represents the situation. You earn $15 raking leaves. The integer represents the situation.

Answers

Answer:

+$15

Step-by-step explanation:

Amount earned for raking leaves = $15

Representing the amount earned above. As a positive or negative integer will depend on what the money is used for or stands for.

Amount earned for working adds to one's wealth while expenses will be represented as negative as it decreases the amout one has ;

Hence, integer ; +$15

Which of the following expressions represents the value, in dollars, of a certain number of dimes, d, and pennies, p?

Answers

Answer:

If your answer choices are:

0.01d + 0.10p

0.10d + 0.01p

0.11dp

0.11d + p

A dime is 10% of a dollar and a penny is 1% of a dollar, or 0.10 and 0.01

Then 0.10d + 0.01p is the expression

Hope this helps!

the polynomial y = x^{5} + x^{3} - x^{2} - 1 factors into (x^{2} + 1) (x^{3} - 1). what is the multiplicity of the root (x^{3} - 1)?

Answers

Answer:

The multiplicity of the root is 1

Step-by-step explanation:

Firstly, we need to understand what multiplicity is

By multiplicity, we simply refer to the number of times we have the certain root repeating itself

From the factorization, each of the given roots were only repeated once

That indicates that the given multiplicity is 1

Jeff wants to upgrade the entertainment center. The price of a television was reduced from $2, 500 to $2,000. By what percentage was the price of the television reduced?

Answers

The price was reduced by 20%

You need at least $48,000 in two years. If you earn 4.8% compounded annually, how much principle do you need to invest?

Answers

Answer:

488305

Step-by-step explanation:

100 plus 4.8 percent then add 4.8 percent gets you 109.83

then apply 9.83 percent to random numbers in a calculator

[tex]23 1/5 in to percentAGE

Answers

20% just divide 1/5 bro I hate the 20 character rule

Plz help ASAP I will mark u branliest

Answers

Question 2) 6y - 1 = 5
First we need to add 1 to each side.
6y - 1 + 1 = 5 + 1
6y = 6
Then we will divide each side into 6 groups.
6y/6 = 6/6
y = 1

Question 4) 3t - 1 = 8
First we need to add 1 to each side.
3t - 1 + 1 = 8 + 1
3t = 9
Then we will divide each side into 3 groups.
3t/3 = 9/3
t = 3
3. Add 1 to each side then divide 6 on each side
6y=5+1
6y=6
Y=1

4. Add 1 to each side then divide 3 on each side
3t=1+8
3t=9
T=3

help!!
 Show that 1 + tan2(x) = sec2(x)​

Answers

Answer:

tan2(x) + 1 = sin2(x)/cos2(x) + 1 = [sin2(x) + cos2(x)]/cos2(x) = 1/cos2(x) = (1/cos(x))2 = sec2(x). Thus tan2(x) + 1 = sec2(x).

Step-by-step explanation:

Answer: Not an identity

Step-by-step explanation:

A television network wanted to estimate the proportion of a one-hour time slot that is made up of commercials. The network took random samples of
10
10 one-hour time slots. The following are the sample proportions the network found in
12
12 samples.



Part A



​What is the estimated proportion of commercials in all one-hour time slots? Round your answer to the nearest thousandth.

Answers

Answer:

120

Step-by-step explanation:

Remember, always round sample size up, regardless of the decimal part. Answer: To find a 95% CI with a margin of error no more than ±3.5 percentage points, where the true population proportion is around 42%, you must survey at least 764 people. 10×764 = 7640; presumably the electorate is larger than that. So, then 10 × 12 = 120

12-6.5 also i need help with a scenario and with a word problem the scenario is the photo i put and with two word problems ramona sees that her cat hasn"t been eating and wants him to gain more weight. If the cat weighs 6.78 pounds and the goal weight is 10.5 lbs, how much weight does Ramona want her cat to gain? these are two separate problems. Jessica is running a 5k which is about 3.1 miles at a charity event. She starts slowing down around 1.75 miles into the race. How much farther does Jessica have before reaching the finish line?

Answers

Answer:

The cat needs to earn 3.72 pounds

Jessica has 1.35 miles to earn in the race.

Step-by-step explanation:


1. Find the missing reference angle using arcsin, arccos, or arc tangent. (Round to
the nearest whole number)
39
10
1?
Your answer

Answers

Answer:

15°

Step-by-step explanation:

Reference angle = [tex] \theta [/tex]

Side Opposite to reference angle = 10

Hypotenuse = 39

Let's use arcsin:

recall: SOHCAHTOA

Therefore:

[tex] \theta = sin^{-1}(\frac{Opp}{Hyp}) [/tex]

Substitute

[tex] \theta = sin^{-1}(\frac{10}{39}) [/tex]

[tex] \theta [/tex] = 14.8571655° = 15° (to nearest whole number)

yoo i got a paper due tmrw if anyone could answer this that’d be bomb thank u

x/8- 3/4=5/8 , solve the equation for x

Answers

the answer is 11 do u need work for it or just the answer?

01. En una piscigranja el 30% de boquichicos es el 20% del número de carachamas. Si sólo hay boquichicos y carachamas. ¿Qué porcentaje del 80% del total es el número de boquichicos? A) 30% B) 50% c) 40% D) 60% E) 25% 02. Se sabe que un libro de de Psicología es más caro que uno de Inglés; uno de Matemática más caro que uno de Historia, pero más barato que uno de Psicología. ¿Cuál es el más caro? A) Psicología B) Historia C) Matemática D) Inglés E) No se puede determinar 03. Calcular la cantidad total de esferas en el siguiente arreglo triangular. A) 4950 B) 5000 C) 4850 D) 5050 E) 5151 04. Calcular "E" y dar como respuesta la suma de sus cifras. A) 900 B) 1200 c) 1800 D) 2700 E) 9990

Answers

Answer:

0.1. B) 50%

0.2 A) Psicología

Step-by-step explanation:

01. Dejemos que 'x' e 'y' representen el porcentaje de boquichicos y carachamas en la piscifactoría, tenemos;

Dado que el 30% de los boquichicos es el 20% del número de carachamas

30% x = 20% y

∴ 0.3 · x = 0.2 · y

Por lo tanto, tenemos;

x / y = 0,2 / 0,3 = 2/3

Por lo tanto, por cada 100% de pescado, tenemos;

x + y = 100%

x = 2/3 · y

2/3 · y + y = 100%

5 · años / 3 = 100

y = 100 × 3/5 = 60%

El porcentaje de carachamas en la finca, y = 60%

∴ x = 100% - y = 100% - 60% = 40%

El porcentaje de boquichicos en la finca, x = 40%

Por lo tanto, tenemos el 80% del pescado en la granja, obtenemos;

Si hay 100 peces en la granja, 80% = 80 peces

Pero el número de los 100 peces que son boquichicos en la granja = 40% × 100 = 40 peces

Por lo tanto, los boquichicos son la mitad del 80% del número de peces o el 50% de los peces en la piscifactoría.

La opción correcta es;

B) 50%

02. Tenemos;

El costo de un libro de psicología> El costo de un libro en inglés

El costo de un libro de matemáticas> El costo de un libro de historia

El costo de un libro de psicología> El costo de un libro de matemáticas

Por lo tanto, tenemos;

El costo de un libro de psicología> El costo de un libro de matemáticas> El costo de un libro de historia

∴ El libro de Psicología es más caro que todos los demás libros y, por tanto, es el libro más caro

La opción correcta es;

A) Psicología

HELP WHAT WHATS THE EQUATION

Answers

Answer:

p=17+6h

Step-by-step explanation:

Write the equation of the line passing through point (-2 - 2) with a slope of -1
Substitute into y = mx + b and for b

Answers

I think that y=-1x-4 is the answer

A tree outside Dave’s house is 12 feet tall

Answers

Answer:

wheres the reszt of the question?

Step-by-step explanation:

James joins Club one which charges a monthly membership of 19.99 how much will James spend in all if he continues his membership for six months

Answers

He will spend $1119.94


What is the vertex of y = x2 + 4x – 7?
O(-4,-7)
O (2, 5)
0 (-2, -19)
0 (-2, -11)

Answers

2
,
0
)
Method 1:
y
=
x
2

4
x
+
4

complete the square to get:
y
=
(
x

2
)
2
pick out the x value (2), and the y value (o)
to get:
(
2
,
0
)
method 2:
y
=
x
2

4
x
+
4

d
y
d
x
=
2
x

4

let
d
y
d
x
=
0
as the vertex is when the gradient of the curve is 0.
to get
x
=
2

substitute that into the original equation to get
(
2
,
0
)

Rewrite the following without an exponent. (9/5^-2)​

Answers

Answer:

225

Step-by-step explanation:

5^-2 can be rewritten as 1/25.

Then we can divide 1/25 by 9. 9/(1/25)= 225

Use the information given to enter an equation in standard form.

(5, 12) and (4, 10) are on the line.
DESPERATE FOR ANSWER

Answers

Answer:

2x - y = -2

Step-by-step explanation:

[tex]m=\frac{y^2-y^1}{x^2-x^1}[/tex]

[tex]m = \frac{10-12}{4-5} =\frac{-2}{-1} =2[/tex]

[tex]10=2(4)+b\\10=8+b\\2=b\\y=2x+2\\2x-y=-2[/tex]

The answer is 2x-y=-2

The customer saves $.96 by using a coupon. The coupon takes 30% off the original price of the serial. What is the original price of the box of cereal?

Answers

.96 = 30%
Divide .96 by 30 to get 1%

Then times that by 100 to get the original price

Find x. Hypotenuse would be 16 and opposite would be y and x would be adjacent

Answers

Answer:

x= 6.762°    y= 14.501°

Step-by-step explanation:

remember if you don't have the missing angle adjacent(side) to the right angle, it wont work.  If you ever need to find it, tell me.

Confused!! Please answer!!

A quadratic function f models the predicted population growth in Town F after x years. An exponential function g models the predicted population growth in Town G after x years. Use the table to compare the average rate of change for each function from x = 1 to x = 3. Which function has a greater average rate of change over this interval? Enter either f or g in the box.

Answers

Answer: g

Step-by-step explanation:

Answer:

g(x)

Step-by-step explanation:

i took the test

PLS HELP ASAP WILL GIVE BRAINlEST AND 100 POINTS
A bus travels from town A to town B. If the bus's speed is 50 km/hr, it will arrive in town B 42 min later than scheduled. If the bus increases its speed by \displaystyle \frac{50}{9}
9
50

m/sec, it will arrive in town B 30 min earlier than scheduled. Find:
A) The distance between the two towns;
B) The bus's scheduled time of arrival in B;
C) The speed of the bus when it's on schedule.

Answers

Answer:

60 km/hr

Step-by-step explanation:

First we will determine the speed of the bus following it's increase. The speed is increased by:

50m/9sec=50.60.60/9/1000 .km/hr=20 km/hr

Therefore, the new speed is V = 50 + 20 + = 70

km/hr. If x is the number of hours according to the schedule, then at the speed of 50 km/hr the bus travels from A to B within ( x + 42/60 ) hr. When the speed of the bus is V = 70 km/hr, the travel time is x -30/60 hr. Then:

50(x+42/60)=70(x-30/60)

5(x+7/10)=7(x-1/2)

7/2+7/2=7x-5x

2x = 7

x=7/2 hr

So, the bus is scheduled to make the trip in 3 he 30 minutes.

The distance between the two towns is 70 ( 7/2 – 1/2 ) = 70 • 3 = 210 km and the scheduled speed is:

270/7/2=60km/hr

I need help with this question, plsssssssss

Answers

Answer: 60 also your welcome

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