1. Given that f(x) = 4x2 + 10x + k ,find the value
of k when f(-1).
A. 6
c. 4
B. 3
D.2​

Answers

Answer 1
when it shows f(x) then f(-1) it just means substitute

0 = 4(-1)^2 + 10(-1) + k

-6 + k = 0

k = 6

it should be a

Related Questions

FIRST RIGHT GETS BRAINLIEST

Answers

Answer:

Red is sus

Step-by-step explanation:

Answer: naah i think brown is sus he faked electrical vote him out

Step-by-step explanation:

1. What is the difference between Salary and Wage?
2. $15 per hour is the basic rate at a factory. After a 48-hour basic work week,
overtime is paid time and a half.
a. If no one worked overtime and the factory paid $15840 in wages one week
how many workers are in the factory?
b. During another week, a worker in the factory earns $810 in wages for
himself. How many hours did he work for?
Hi

Answers

Answer:

answer yourself

Step-by-step explanation:

What numbers rounded to 200,000 when rounded to the nearest hundred thousand

Answers

Answer:

The answer would be 150,000 to 249,999

Which table represents a function?

Answers

Answer:

B

Step-by-step explanation:

Round off to the highest place value of 5658

Answers

Answer:

6000

Step-by-step explanation:

You want to make the 5 a 6 and zero's for the rest. You make the five a six because if the number is 5 or higher you bump it up one number, if it is 4 or lower you don't need to bump it up or down. I hope this helps!

Place values is the value of a digit in relation to its position

5658 approximated to the highest place value is 6000

The number is given as:

[tex]\mathbf{Number = 5658}[/tex]

The number is in thousands; so, the highest place value is thousands

This means that the number must be approximated to thousands.

When 5658 is approximated to the nearest thousands, the approximated value is:

[tex]\mathbf{Approximated = 6000}[/tex]

Hence, 5658 approximated to the highest place value is 6000

Read more about place values at:

https://brainly.com/question/16552177

Using what you noticed, find the measures of the four angles at point B in this second diagram. Lines AC and DF are parallel.

Answers

Answer:

The measures of the four angles at B are

m∠EBC = 34°

m∠ABH = 34°

m∠EBA = 146°

m∠CBH = 146°

Step-by-step explanation:

∵ AC // DF

∵ HG is the transversal

∴ m∠GEF = m∠EBC ⇒ corresponding angles

∵ m∠GEF = 34°

∴ m∠EBC = 34°

∵ GH intersects AC at B

∴ m∠EBC = m∠ABH ⇒ vertically opposite angles

∵ m∠EBC = 34°

m∠ABH = 34°

∵ B ∈ AC

∠EBC and ∠EBA formed a pair of linear angles

∵ The sum of the measures of the pair of linear angles is 180°

m∠EBC + m∠EBA = 180°

→ Substitute m∠EBC by 34°

∴ 34 + m∠EBA = 180

→ Subtract 34 from both sides

∵ 34 - 34 + m∠EBA = 180 - 34

m∠EBA = 146°

∠EBA and ∠CBH are vertically opposite angles

∴ m∠EBA = m∠CBH

∵ m∠EBA = 146°

m∠CBH = 146°

Situation: The No Doze Cafe sells Pumpkin Spice Lattes for $3 and Caramel Hot Apple Cider for $2. On a cool autumn morning, the shop sold 5 more Ciders than Lattes and made $25.
Define x and y variables and write the equation/s.

Answers

X is lattes y is ciders
3x+2y=25
y-x=5
y=5+x

3x+2(5+x)=25
3x+10+2x=25
5X=15
X=3

Y=3+5=8

Which function has a constant additive rate of chan of -1/4

Answers

Answer:

y -12 21 -1.5 -11 11 -2 -10 14 -2.5 -9 17 ?

Step-by-step explanation:

Which expression is equivalent to 42 + 63?

Answers

Answer: 104-63 maybe?

Step-by-step explanation:

AYUDAAAAAAAAA PORFA NO LE ENTIENDO

Answers

a) 8
b) si, 1/8
c) verde
d) amarillo
e) amarillo 10, rojo 20, verde 30, azul 20
f) amarillo 100, rojo 200, verde 300, azul 200
g) amarillo 100/800, rojo 200/800, verde 300/800, azul 200/800

Me podrías marcar como mejor respuesta porfa

Jessica had 95 dollars to spend on 6 movies. After buying them she had 17 dollars. How much did each movie cost ?
show work

Answers

Answer:

$13 per movie

Step-by-step explanation:

Each movie costed $13 because if Jessica had $95 to spend on 6 movies, and she had $17 after buying all of them, the 6 movies costed a total of $78, and 78 divided by 6=$13 per movie. Hope it helps!

Answer:

13

Step-by-step explanation:

95-17 = 78.

then divide 78 by 6 which equals 13

A costume designer needs some silver and gold thread for the costumes for a school play. She needs a total of 240 yards. At a store that sells thread by the yard, silver thread costs $0.04 a yard and gold thread costs $0.07 a yard. The designer has $15 to spend on the thread.

How many of each color should she get if she is buying exactly what is needed and spending all of her budget?

Write an equation for the length constraint. Write an equation for the cost constraint. solution

Answers

Answer:

Where s represents silver and g represents gold,

Length constraint: s+g=240

Cost constraint: 0.04s+0.07g=15

s= 60

g=180

Step-by-step explanation:

The measurement of silver and gold threads in yards is given as 60 and 180 respectively.

What is a system of linear equations?

A system of linear equations is a group of  equations having same number of variables and degree.

For the n number of variables n number of equations are required.

On the basis of number of solutions a system of equations can be classified as consistent and inconsistent.

The given problem can be solved as follows,

Suppose the number of yards for silver threads be x and that of gold be y.

Then the equation for the total yard is given as,

x + y = 240                  (1)

And, the equation for the cost is,

0.04x + 0.07y = 15      (2)

The value of x from equation (1) is x = 240 - y.

Substitute the value of x in equation (2) to obtain,

0.04(240 - y) + 0.07y = 15  

=> 9.6 - 0.04y + 0.07y = 15

=> 0.03y = 15 - 9.6

=> 0.03y = 5.4

=> y = 180

Substitute the value of y in x = 240 - y to obtain,

x = 240 - 180 = 60

Hence, the costume designer should get  silver and gold thread of 60 yards and 180 yards respectively.

To know more about system of equations click on,

brainly.com/question/24065247

#SPJ2

2 times what equals 84

Answers

Answer:

42

Step-by-step explanation:

Let x be the missing number in the equation

Write out the equation: 2x = 84Divide each side by 2 to cancel out the 2 next to x. It should now look like this: x = 42

I hope this helps!

The daily high temperatures in a vacation resorts in approximately normal, with a mean temperature of 75 Fahrenheit and a standard deviation of 6 degrees. What percentage of days have a high temperature between 66 and 88?
A.17.01%
B.35.62%
C.64.37%
D.72.99%

Answers

Should be B I think

There are 1200 students in a school 51% of them are female how many are male

Answers

The answer to this question is 612. Your welcome

Answer:

Step-by-step explanation:

588 are boys

1% of 1200 is 12, 50% is 600, add 12 and 600 together, you get 612, subtract it from 1200 and it gives you 588

Which of the following is a cost homeowners insurance does not protect?
a. The cost of repair or replacement of a home lost in a natural disaster.
b. Additional living expenses required while your home is repaired after a disaster.
c. Replacement costs for all contents in your home, including high cost electronics.
d. The cost of medical expenses incurred by somebody getting injured on your property.

Answers

Answer:

Replacement costs for all contents in your home, including high cost electronics. In my case it was C on edge

Step-by-step explanation:

The solution is, c. Replacement costs for all contents in your home, including high cost electronics,  is a cost homeowners insurance does not protect.

What is insurance?

Insurance is an arrangement by which a company or the state undertakes to provide a guarantee of compensation for specified loss, damage, illness, or death in return for payment of a specified premium.

here, we have,

Personal property replacement cost endorsement under her homeowners policy comes with limits of the policy that only covers insurance on replacement cost for structural damage and damages or loss of materials of similar kind and quality.

Some items such as art items, paintings, an antique chair, jewelry and collectibles are not usually listed in the policy contract except a scheduled personal property coverage is added to the Personal property replacement cost endorsement contract.

Therefore, from this question, The solution is, c. Replacement costs for all contents in your home, including high cost electronics,  is a cost homeowners insurance does not protect.

To learn more on insurance click:

https://brainly.com/question/15177441

#SPJ7

please help me asap​

Answers

7. option 2 : 104

8. option 4 : 54

9. option 2 : 23

10. option 2 : 6

11. option 2 : 6

solve:4x+3y=20;4x+2y=10 by matrix method​

Answers

Answer:

i don't know sorry . and study well to make your future good

the sum and twice the number and 18 is greater than 25

Answers

Answer:

Step-by-step explanation:

45

12x+7<−11 AND5x−8≥40

Answers

Answer:

12x+7<−11       x < - 1.5

5x−8≥40        x ≥ 9.6

Step-by-step explanation:

12x+7<−11    First, move the constant to the right. 12x < -11 - 7 Then, we can get the total value and then divide everything by 12. 12x < -18    ->   x < - 1.5

5x−8≥40    Move the constant to the right. 5x ≥ 40+8 Then, after we add the constants, we can divide both sides by 5. 5x ≥ 48     ->       x ≥ 9.6

Answer:

NO SOLUTION IS THE ANSWER FOR KHAN ACADEMY

Step-by-step explanation:

What is a more economical purchase, a 5-pound box of spaghetti priced at $6.02, or a 1.5-pound box for $1.70?

Answers

The 5 pound box of spaghetti(:

PLEASE ANSWER

What do degrees measure?

A. the incline of an angle

B. the orientation of an angle

C. the type of angle

D. the length of an angle

Answers

Answer:

I woulda said B too...

Step-by-step explanation:

20 POINTS WILL MARK BRAINLIEST PLEASE EXPLAIN

Answers

Answer:

DCE is 54°

Step-by-step explanation:

To solve this, we must come up with an equation. Since D, C, and E are each straight lines, they are each 180°. then, each line is separating the other which splits the 180 degree line into two parts. For example, E separates D, C separates E, and so on. The exterior angles are given, but the interior aren't. So:

for angle EDC: 180 - (9x - 31)

for angle CED: 180 - (4x + 33)

for angle DCE: 180 - (7x - 2)

we know that all angles in a triangle add up to 180°. So, our equation is:

180 - (9x - 31) + 180 - (4x + 33) + 180 - (7x - 2)=180.

simplify:

180 - 9x + 31 + 180 - 4x - 33 + 180 - 7x + 2=180

540 - 20x = 180

540 - 180 = 20x

360=20x

x= 18

for angle EDC: 180 - (9•18 - 31)=49°

for angle CED: 180 - (4•18 + 33)=75°

for angle DCE: 180 - (7•18 - 2)=54°

Can someone help me with this geometry question thanks will mark brainliest

Answers

For parallel lines, gradients (slope) must be the same.

The lines given in multiple choice, no line with the same gradient/slope as line y = 3x - 2.

Step-by-step explanation:

From y = 3x - 2,

The slope = 3

Let's check slopes of lines from multiple choice:

From first line

4x + 2y = 5

2y = -4x + 5 (dived 2 both sides)

y = - 2x + 5/2

The slope = -2

Continue with remaining three equations you get slopes: -1/2, -4 and 4.

Hence no equations above represent parallel equation to y = 3x - 2



Help my 11 old daughter please I don’t know this type of math

Answers

Answer:

2nd Choice- $2.14 total

Step-by-step explanation:

The expression is just adding the factors, 1.19 and 0.95. Then the counting sets, a whole square shaded is 100 units, a bit more is shaded of the second square, which signifies the .19 cents. Then yellow shade shows the lip balm cost, which is 0.95.

What is the equation of the line that passes through the point -5, two and has a slope of -2/5

Answers

9514 1404 393

Answer:

  y -2 = (-2/5)(x +5)

Step-by-step explanation:

You can put the given values for the point ((h, k) = (-5, 2)) and slope (m = -2/5) into the point-slope form of the equation for a line:

  y -k = m(x -h)

  y -2 = -2/5(x +5)

_____

This equation simplifies to ...

  y = -2/5x

Which number is greater than the absolute value of LaTeX: -\frac{3}{8}− 3 8?

Answers

Answer:

0.5

Step-by-step explanation:

We have to find a  number which is greater than the absolute value of -3/8.

Absolute value of -3/8 = 3/8

3/8=0.375

Now, we have to find a number which is greater than 0.375

1/4=0.25

0.25 is smaller than 0.375

0.5 is greater than 0.375

also -5/8 and -1/8 are less than 0.375

Hence, the only number which is greater than the absolute value of -3/8 is:

0.5

Step-by-step explanation:

The points D, E, F and G all lie on the same line segment, in that order, such that the ratio of DE:EF:FGDE:EF:FG is equal to 6:5:1.6:5:1. If DG=36,DG=36, find DF.DF.

Answers

Answer:

i

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

-3y > 9 or y - 6 > 2

Answers

Answer:

Your answer is: y < -3 or y > 8

The union consists of all of the elements that are contained in each interval.

Step-by-step explanation:

Hope this helped : )

Here is a system of equations: 7x-4y=-11
7x+4y=-59 would you rather use addition or subtraction to solve this system. Explain your reasoning.

Answers

Answer:

Addition

Step-by-step explanation:

Better to use addition since you already have a -4y and +4y. So if you add them together it will cancel out!

x = -5 and y = -6.

We can use either of the addition or subtraction as both will involve the same process of solving the equation.

We have a system of equations -

7x - 4y = - 11

7x + 4y = - 59

We have to investigate on the process of solving these equations.

What do you mean by System of Linear equations?

A system of linear equations is a collection of one or more linear equations involving the same variables.

According to the question, we have -

7x - 4y = - 11

7x + 4y = - 59

We would subtract second equation from first as follows -

7x - 4y - (7x + 4y) = - 11 - (- 59)

7x - 4y - 7x - 4y = -11 + 59

-8y = 48

y = - 6

therefore -

7x - 4y = - 11

7x - 4(- 6) = -11

7x + 24 = -11

7x = -11 - 24

7x = - 35

x = -5

Hence, x = -5 and y = -6.

We can use either of the addition or subtraction as both will involve the same process of solving the equation.

To solve more questions on System of Linear equations , visit the link below-

https://brainly.com/question/17053411

#SPJ2

Other Questions
Divide. Reduce the awnser to lowest terms 5 2/3 divided by 3 1/9 who built a lightweight airplane with powered engine? After a particularly fierce blow, he crawled to his feet, too dazed to rush. . . . All the pain he had endured was as nothing compared with the exquisite agony of this. With a roar that was almost lionlike in its ferocity, he again hurled himself at the man. But the man, shifting the club from right to left, coolly caught him by the under jaw, at the same time wrenching downward and backward. Buck described a complete circle in the air, and half of another, then crashed to the ground on his head and chest.What is the mans role in this excerpt?The man is the protagonist because he is the main character.The man is the protagonist because he proves his superior strength.The man is the antagonist because he reveals his cruel nature.The man is the antagonist because he is opposing Buck. why does being 426 ft above sea level affect weather? An alligatoris 8 inches long at birth and grous 6 inches per year. Wirite an equation that represents the lengthy needs of an alligator that is years oldHow long will the alligator be aher 5 years? Please help!! I chose an answer but Im not sure! DUE IN 3 MINS The shape on the left is transformed to the shape on the right May I have help on This page please This is about cause and effect Mark got 18 out of 25 questions correct on his science test. What percent of the questions did he get correct The majority of earth is covered with water. Water takes longer to heat up and cool down which has an impact on the air temperature. The slow change in water temperature is due to waters A. Completa con la forma apropiada del verbo.Yo no s lo que vamos a hacer esta noche. Pablo quiere que nosotros __1__ (ir) al cine. l insiste en que nosotros_2__(ver) la pelcula en el cine Apolo. Carlota tema que maana __3__(ser) el ltimo dia. Tiene miedo de que ellos4_(cambiar) las pelculas los sbados. Y t, quieres que nosotros ___5__ (ir) al cine o que __6_ (hacer) otra cosa?Qu me dices? Que Felipe quiere que ustedes_7__ (quedarse) en casa. Por qu? Ah, l quiere que todo el grupo__8__(escuchar) msica y que__10__ (bailar). Buena idea! Write 0.0000000642 in scientific notation. two events that occurred in the last 500 years that might be considered "turning points" in world history. Solve for 8. 0.5s +1 = 7 + 4.5s In 1776, a group of people convened in Philadelphia using Locke's ideas of unalienable rights to create theA)magna cartaB)declaration of independenceC)petition of rights Using established recombinant DNA technology, you insert a gene from a human liver cell into a bacterium. The bacterium then expresses a protein corresponding to the inserted DNA. To your dismay, you discover that the protein produced is useless and is found to contain many more amino acids than does the protein made by the eukaryotic cell. Assuming there is no mutation in the human gene, explain why this happened. a. bacteria do not use splicing to edit RNA after its transcription. b. rRNAs in bacterial cells contain more nucleotides than in eukaryotic cells. c. bacterial RNA contains less stop codons. d. amino acids in bacterial cells are specified by double codes. HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Conjugate the verb in the parenthesis in the preterite tense.Mis amigos y yo ______ (levantar) pesas la semana pasada the unit cost of pencils purchased by the city's public schools is $.0435 each. Round to the nearest cent Given m < PQS = 45 and m