Find the product and simplify.
(k+ 4)(-4k – 5)

Answers

Answer 1
The answer is -4k^2 - 21k - 20! so sorry if I’m wrong but it’s the answer I got :>

Related Questions

in Square W XYZ.PW = 7. w X What is the square's perimeter? • 282 units Р 49 units 098 units Z Y O • 1472 units 3 4 5 6 7 8​

Answers

Answer: Like I said it is either A or B

Answer[tex]Answer is A[/tex]: A      28/2

Step-by-step explanation: Took the test.

giving 100 points and giving brainlest
For which value of b can the expression x2 + bx + 18 be factored?
A.
7
B.
3
C.
17
D.
-19

Answers

Answer:

7

Step-by-step explanation: (dont trust me)

x^2 + (7)x +18

x(x + 4) + 3(x + 6)

Answer:

See the attachment for what goes on your X diagram.

Rewrite: x² -7x +4x -28

Grouping: (x² -7x) +(4x -28) = x(x -7) +4(x -7) = (x +4)(x -7)

Step-by-step explanation:

The given quadratic is ...

... x² -3x -28 . . . . . a=1, b=-3, c=-28

a) The value at the top of the X diagram is the product a·c = 1·(-28) = -28.

The value at the bottom of the X diagram is the coefficient b = -3.

The values on the sides of the diagram are the factors of -28 that add up to make -3. These are -7 and 4. That is, ...

(-7)·(4) = -28

(-7)+(4) = -3

b) Since the two values on the sides of the diagram add up to give "b", the value of "b" in the equation can be rewritten as the sum of these two numbers. Doing that, we have ...

... x² -3x -28

... = x² +(-7+4)x -28

... = x² -7x +4x -28 . . . . . . order does not matter. It could also be x² +4x -7x -28

c) We can group pairs of terms in the rewritten expression and factor each pair.

... = (x² -7x) +(4x -28) . . . . . first pair has a common factor of x; second pair, 4

... = x(x -7) +4(x -7) . . . . . . . these terms now have a common factor: (x -7)

... = (x +4)(x -7) . . . . . . . . . . the complete factorization of x² -3x -28

_____

Comment on extended application

When a ≠ 1, there are a couple of additional steps. Effectively, you reduce the fractions ax/p and ax/q to a'x/p' and a''x/q'', then rewrite those as the factors (a'x+p')(a''x+q'') where the ' and '' numbers are after reducing the fractions. (The numbers may be the same as the original if the fraction cannot be reduced.) As a check, a'·a'' = a, and p'·q'' = c.

Complete each statement with a number that makes the statement true.



_____ < 7°C



Do not include units (°C) in your answer.



copied for free from openupresources.org


Select one:
15
8
4
10

Answers

Answer:

4

Step-by-step explanation:

the answer is: 4

cause 4 is less than 7

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

Please answer the question in the picture

Answers

Answer: it soo blurry I did not see it

Step-by-step explanation:

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 real person ​

Answers

Answer:

who

Step-by-step explanation:

Answer:

yes......

d synch office

yes it is...

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.

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

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°

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 (:<

25 x 10^9 in standard form

Answers

Answer:

25000000000

Step-by-step explanation:

Max can type 165 words in 2 minutes. At that rate, how many words can he type in 55 minutes?

Answers

Answer:

he type in 55 minutes : (55 x 165) / 2 ≈ 4538 words

Step-by-step explanation:

165/2=82.5 words per minute
82.5x55=4,537.5 words typed in 55 minutes

what is the product of 2 4/7 × 13/12​

Answers

Answer:

2 11/14

Step-by-step explanation:

First make both of them improper fractions.

therefore,

2 4/7 = 18/7

now simplify.

18/7 × 13/12

18 and 12 get cancelled off as they're multiples of 3 and 6

therefore,

3/7 × 13/2

3× 13 = 39

7×2 = 14

39/14

now make it a proper fraction

2 11/14//

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

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

Convert 15 kilometers per hour to meters per second.

25 meters per second
4.2 meters per second
54 meters per second
9 meters per second

Answers

Answer:

54

Step-by-step explanation:

multiply the speed value by 3.6

Answer:

The answer above is wrong!! The right answer is actually 4.2 Meters per second

Step-by-step explanation:

When I put 54 the question came up as wrong but when I put 4.2 it showed up as right :)

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.

PLS HELP ASAP I DONT HAVE TIME FOR THIS, IT ALSO DETECTS IF ITS RIGHT IR WRONG

Answers

Answer:

a

Step-by-step explanation:

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 HELPPPPPPP,

Complete the table
f(u)=u2-6u

Answers

Answer:

u = -2 ; f(u) = 16

u = 0 ; f(u) = 0

u = 2 ; f(u) = -8

u = 4 ;f(u) = -8

Just Substitution a number in u

Step-by-step explanation:

hope it helps ☺️

What is the perimeter of a square with a length of 19 meters?

Answers

The answer is b 38cm

Answer:

76 m

Step-by-step explanation:

If each side has a length of 19 m, then the perimeter is 19m*4 = 76 m

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

False
True
or
3.
Circle:
2'-
2'

Answers

Answer:

true

Step-by-step explanation:

Pls help its math it was due yesterday my teacher said i could still get 3/4 credit if i turn it in now
i need what is 5(7 - m) and also 2(3 + f) im really bad at my math class for distibutive property this was due yesterday



and im still sad trying to pay attention to my english class but i just got told off by someone who my best friend talk to on here and- and they said that i dont know her or what she needs a- and that im clueless to what shes going through,and that i- i never listened to her. i thought she was doing better now...... i feel like ive done nothing before, and now shes struggling......... again uhm, please answer my math questions i need the answers it was due yesterday*_*and also dont listen to my story just wanted to express my feelings

Answers

Answer:

•35 - 5m

•6 + 2f

Step-by-step explanation:

•5(7-m):

[5×7] - [5×m]=

35 - 5m

•2(3+f):

[2×3] + [2×f]=

6 + 2f

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

if Maya drove 30 laps in six minutes how many laps did she drive in one minute

Answers

Answer:

5 laps in one minute.

Step-by-step explanation:

1. Divide 30, the number of laps, by 6, the number of minutes. So, for every 1 minute Maya drives on lap.

find the value of the expression

18 ÷ y
for y = 3

Answers

Answer:

6

Step-by-step explanation:

18 divided by 3 equals 6.

Answer:

6

Step-by-step explanation:

18 ÷ y

18 ÷ 3 ^ Substitute 3 in for y, as y equals 3.

6 ^ Divide.

A Solution of the equation,
3x2 + 2x + 1 = 0 is

Answers

Answer:

x = -3.5

Step-by-step explanation:

POE = PROPERTY OF EQUALITY

3*2 + 2x + 1 = 0

6 + 2x + 1 = 0 ## ^ Multiplication

7 + 2x = 0 ## ^ Combine like-terms

2x = -7 ## ^ Subtraction POE

x = -3.5 ## ^ Division POE

Answer:

X=0

Step-by-step explanation:

Use PEMDAS to get rid of some things. Do 3 x 2 = 6. Then distribute the like terms to one side seperating 2x and "0": +1 ---> 0-1 = -1. Now divide... 2x/2 = x (cancels out) and 0/2 = 0. Therefore X=0. But I'm not a computer so double check your answer.

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

Answers

Answer:

12

Step-by-step explanation:

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