The only solution of the equation x2 + bx + 16 = 0 is x = 4. What is the value of b?

b = –16
b = –8
b = 8
b = 16

Answers

Answer 1

Answer:

88

Step-by-step explanation:

x2+bx+16=0

4x2+16x4+16=0

8+64+16=0

72+16=0

88

Answer 2

Answer:

guys the answer is c.. on EDG at least trust me i just did it

Step-by-step explanation:


Related Questions

should i get a normal switch because it has more features or switch lite because its cheaper?

Answers

Answer:

i have the regular switch but you should get the regular one because it has more features

Step-by-step explanation:

i think you should get the one thats best for you but i have the regular one but get the one thats best for you

What is the value of y=4x−2 when x=3? When x=3, y=

Answers

The answer to you question is y=10

Solve the system of equations below by elimination. -2x-4y=-4 -x+7y=-20

Answers

Answer:

67

Step-by-step explanation:

what percent is represented by the diagram

Answers

Answer:

180%

Step-by-step explanation:

A full box shaded in plus 80% of another box is 180%.

Answer:

180%

Step-by-step explanation:

Each hundreds blocks shaded in is 100% and the second block is shaded 80 so 80% so it equals 180%

If there are 6 boys and 54 girls in a room, fill out all of the possible ratios of boys to girls that could be made.

Answers

Answer: 9

Step-by-step explanation: We know how many boys there are (6) and girls (54). But we need to fill out all of the possible ratios of boys to girls.

To do that, we divide 54 by 6.

54 / 6 = 9

What is the equation of the line through (−2, −2) and (4, −5)?

Answers

Answer:

Step-by-step explanation:

(-5 + 2)/(4 + 2) = -3/6 = -1/2

y + 2 = -1/2(x + 2)

y + 2 = -1/2x - 1

y = -1/2x - 3

Answer: y= -1/2x -3

Step-by-step explanation: you just have to do -5- (-2) over 4-(-2) when u divide these two you should get the slope. When you get the slope pick one of the coordinates in your questions and plug them in as Mx + b form.

seventy four point three times five point four​

Answers

401.22

Hope this helps!

May I have brainliest please? :D

Answer:

401.22

Step-by-step explanation:

You just regularly multiply.....

Jenny selects a box of cereal for her family at the supermarket. Across town, Chase also happens to pick out a box of cereal for his own family. Are these two events dependent or independent?

Answers

Answer:

Independent

Step-by-step explanation:

In clear and simple terms, Events A and B are sid to be independent if the occurrence of event A and event B can occur simultaneously, that is the occurrence of A does not affect or stop the occurrence of B at the time.

The events being compared can happen concurrently with Jenny and chase both making selection for their respective families. However, events which cannot occur together are called mutually exclusive events such as obtaining a head and tail from a single coin toss, this events cannot happen together and are thus not independent.

Which phrase represents the expression 7x + 2?

a. seven times two plus a number

b. two times a number plus seven

c. two less than a number multiplied by seven

d. a number multiplied by seven then added to two

Answers

Answer:

D should be the correct answer:) hope this helps:))

The phrase represents the expression 7x + 2 is the number multiplied by seven then added to two, So Option D is correct

What are expressions?

An expression is a sentence with at least two numbers or variables having mathematical operation. Math operations can be addition, subtraction, multiplication, division.

For example, 2x+3

Given that,

An expression,7x + 2

here, 7 is coefficient

x is variable

And then in 7x, constant number 2 is added

So it can be state that a number multiplied by seven then added to two

So, the statement is 7  multiplied in number then 2 is added

To know more about Expressions check:

brainly.com/question/16804733

#SPJ5

Its for GradPoint
I need help

Answers

Answer:

No

Step-by-step explanation:

It fails the vertical line test

It passes through more than one point vertically

I REALLY NEED HELP!! PLEASE I NEED HELP WITH THE RESPONSES!

Answers

Answer:

Step-by-step explanation:

The area is equal to the length mutiply to the width.


Noah wrote that 6 + 6 = 12. Then he wrote that 6 + 6 - n = 12-n. Select the phrases that make the statement true

Answers

Answer:

6 +6 =12

Step-by-step explanation:

it is telling you that the statement is true because the next equation says 6 +6 -n and the first equation helps you know the answer is true because you know that n is being taken away from the answer which is 12.

hope that helps and makes sense

The equations are balanced because Noah subtracted the same number on each side of the origin.

What is Algebra?

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

Equation property: If a number is subtracted, added, multiplied, or divide into both sides of the equation, then the equation remains balanced.

Noah wrote that 6 + 6 = 12.

Then Noah subtracted n from both sides of the equation. Then the equation will be

Then he wrote that 6 + 6 - n = 12-n.

The equations are balanced because Noah subtracted the same number on each side of the origin.

The question was incomplete, but the complete question is attached below.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ2

Mary compares the heights of two trees. Their heights are shown. Write and solve an equation to find the height h of the taller tree.

Answers

45+12= the height of the taller tree

Answer:

h= 57

Step-by-step explanation:

h-12=45

+12 +12

    h=57

I really need help with this please I keep getting it wrong and I’m confused

Answers

18+5= n
n= 23
D. 23
15+5=20 so u just gotta add 5 to 18

i keep posting the next questions but help anyways pleasee

Answers

Answer:

1) A, C, and D all represent linear equations.

2) A, C, and D are functions; none of them have repeating x values.

3) D

PLEASE HELP!
click pic above for question

Answers

The answer is C) 63 degrees
Since it is an adjacent angle, the answer is C, 63

A ship sails from (1,2) to point (5,5). At which point has it completed HALF of its trip?

Answers

Answer:

(3, 3.5)

Step-by-step explanation:

use the midpoint formula since the midpoint is half easy between each

5+1/2, 5+2/2

6/2. 7/2

(3, 3.5)

HELP ME PLS!!! PLS PLS

Answers

Answer:

53

Step-by-step explanation:

3x +17= 7x-31

17+31 = 7x-3x

48 = 4x

48/4= x

12=x

x=12

KL= 3x+17= 7x+31

using KL= 3x+17;

KL= 3(12) +17

KL = 36+17

KL=53

100 POINTS ANSWER ASAPP!!!!!!!!!!!!!

Answers

Answer:

(B) x≤2.5

Step-by-step explanation:

Given the closed dot at x=2.5 and the line is going left (negative direction), that means that x is less than or equal to 2.5 (since the closed dot means 2.5 is included), making B the correct choice.

work out the value of x :)

Answers

Answer:

x=67.5

Step-by-step explanation:

A full circle is 360°, and the right angle is 90°. The rest of the angle is 270°, or 4x (from 3x+x).

4x = 270

x=67.5

What is the value of x?
30°
130
to

Answers

Answer:

20

Step-by-step explanation:

Most likely this is a triangle triangle have 180 always

Clare has $54 in her bank account. A store credits her account with a $10 refund. How much dose she have now in the bank

Answers

Answer: She now has $64 in the bank.

Step-by-step explanation:

Amount of money in bank account = $54

amount refunded by a store = $10

Total amount of money in bank =Amount of money in bank account + amount refunded by a store= $54+ $10 =$64

Refraction is the bending that occurs when a wave moves from one medium to another at an angle and
changes speed

True/False?

Answers

Answer:

True

Step-by-step explanation:

True hope that can help you

c) If a pen and a pencil cost £1.10 for both and the pen
costs £1 more than the pencil, what is the cost of the pen?

Answers

Answer:

$3.10

Step-by-step explanation:

Boys to girls in a classroom is 3:5. If there are 9 boys in Mr. Franklin’s class, what is the total number of students in Mr. Franklin's class? *

Answers

Answer:

24

Step-by-step explanation:

3 x 3 = 9

5 x 3 = 15

15 + 9 = 24

hope this helps plz give me brainliest

Use the exchange rate £1 = €1.14 to convert €57 into £.

Answers

50
Pretty sure it’s 50

Answer:

64.98

Step-by-step explanation:

h + 14.8 = −14.8 solve for h

Answers

Answer:

h= -29.6

Step-by-step explanation:

trust me!!

Answer:

The answer is h= -29.6

also if you click the image it will show you how to solve it I hope the image helps.

The perimeter of a square is 60cm. How long is one side of the square?

Answers

Answer:

15

Step-by-step explanation:

60/4=15

Answer:

15 cm

Step-by-step explanation:

since all sides combined are 60.

take 60 and divide it by 4

60÷4

which equals 15

60÷4=15

HELPPPPP - this a grade due today and i need help

Answers

Answer: A-True B-False C-True D-True E-False

Step-by-step explanation:

6x² + 4x / 6x² + 13x + 6 ( please show work )

Answers

Answer:

her friends n her mom hate me lay down on da bed n do da crybaby

Step-by-step explanation:

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