Which of these is not a method to solve systems of
equations?
-Substitution method
-Graphing method
-Addition method
-Difference of squares method

Answer:

x=55 y=125

Step-by-step explanation:

X= 110/2=55

if BC is 110, BAC=250

so Y=250/2=125

Answer:

Step-by-step explanation:

perimeter =76 m

L=3+w

w

2L+2W=76

2(3+W)+2W=76

6+2w+2w=76

4w=70

w=70/4

w=17.50

L=17.50+3=20.50

A=L*W=17.50*20.50=358.75m^2

Step-by-step explanation:

=x²-10x-24

=x²-4x+6x-24

=x(x-4)+6(x-4)

=(x-4)(x+6)

hope it helps.

Answer:

2

1 - -

3

Step-by-step explanation:

gogiueueudkdkdkd

Answer:

1 2/3

Step-by-step explanation:

Answer:

the thrird option

Step-by-step explanation:

The probability that at least 1 number cube will show a number 8 or larger is 0.83.

In an experiment with two possible outcomes, the likelihood of exactly x successes on n repeated trials is known as the binomial probability (commonly called a binomial experiment). The binomial probability is

[tex]n^C_xp^xq^{n - x}.[/tex]

Given, In a certain board game, a 12-sided number cube showing numbers 1 to 12 is rolled.

So, Numbers that are 8 or larger is 8, 9, 10, 11, 12.

Now, The probability(p) of getting a number 8 or larger P(X ≥ 8) = 5/12.

hence q = 1 - p = 7/12.

Therefore, If 4 such cubes rolled the probability that at least 1 number cube will show a number 8 or larger is,

P(X≥ 8) = [tex]^4C_1(\frac{5}{12})(\frac{7}{12})^4+^4C_2(\frac{5}{12})^2(\frac{7}{12})^2+^4C_3(\frac{5}{12}^3)(\frac{7}{12})^1+^4C_4(\frac{5}{12})^4(\frac{7}{12})^0[/tex].

P(X≥ 8) = 4(0.41×0.115) + 6(0.173×0.34) + 4(0.072×0.58) + 1(0.030×1).

P(X≥ 8) = 0.283 + 0.35 + 0.167 + 0.030.

P(X≥ 8) = 0.83 or 83% chance.

learn more about binomial distribution here :

https://brainly.com/question/14565246

#SPJ5

Answer:

300 km in hour are the answers

Answer:

4084

Step-by-step explanation:

20420/5=4084

Answer:

4084 words.

Step-by-step explanation:

If Destiny types 20,420 words in 5 minutes, then she types 20,420 divided by 5 words in 1 minute.

20,420/5 = 4084

Destiny types 4084 words in 1 minute.

Let me know if this helps!

Answer:

Answer below

Step-by-step explanation:

I really hope it works

Answer:

30 strings

Step-by-step explanation:

Answer:

5 guitars...each has 6 strings

5 x 6=30

so 30 strings needed

Answer: The answer is B

Step-by-step explanation:

-(5n-1\right)\left(25n^2+5n+1)

u gotta flip it and the answer is B on your screen!!!

Answer:

yeah it is bcoz if x is -1 then x+1 will be

-1+1 which is 0 and ur whole equation will say

now thats a lot of damage

Answer:

1/4

Step-by-step explanation:

the first bag has 2 green marbles out of 6 total marbles, so the probability of getting a green marble out of the first bag is 2/6, or 1/3.

the 2nd bag has 3 green marbles out of 4 total marbles, so the probability of getting a green marble is 3/4

then multiply those together

1/3 × 3/4 = 3/12, which is 1/4

So that's the probability

Answer:

Cost of game after discount = 72 - 20% of 72 = $57.6

Cost after tax = 57.6 + 7.5% of 57.6 = $61.92

So, the required cost is $61.92.

Answer:

b

Step-by-step explanation:

b

Answer:

x=27

Step-by-step explanation:

simplify 1/4

(1/4*x)-7=0

7=7/1=7*4/4

x-(7*4)/4=x-28/4

x-28/4=0

x-28/4*4=0*4

x-28=0

add 28 to both sides of the equation

x=28

Answer:

6.3

Step-by-step explanation:

8.5 - (-4.8)

Let's focus on - (-4.8)

if a negative number is subtracted, it reverses itself

In other words, if a negative number is being subtracted, it is the same as being added as a positive number

So we change the equation to

8.5 + 4.8 = 13.3

Now we subtract 7 from 13.3

Since positive 7 is being subtracted, the rule for -4.8 does not apply to it

13.3 - 7 = 6.3

Answer:

spills on the floor

Step-by-step explanation:

there is liquid of some sort someone could slip and hurt themselves. hope this helps

Answer:

4 years

Step-by-step explanation:

Hope this helps

Answer:

4 years

Step-by-step explanation:

do 1,875 divided by 768

Answer:

1. y =1/4x + 7

2.y =-3x + 2/3

3. y =2/3x + 2/3

4.y =-2x - 1/2

5.y =-3/4x -3

Step-by-step explanation:

By using the slope- intercept form of the equation, y=mx + b, where m=slope and b=y-intercept, you can substitute the values of slope and the y-intercepts into the formula y=mx + b

Answer:

slope is 2

Step-by-step explanation:

Slope Formula: [tex]m=\frac{y2-y1}{x2-x1}[/tex]

= [tex]\frac{-4-6}{-2-3}[/tex]

= [tex]\frac{-10}{-5}[/tex]

= [tex]2[/tex]

Answer:

D

Step-by-step explanation:

w = width

length = w + 0.6

A = l · w

A = w (w + 0.6)

A = w² +.6w

Answer:

D

Step-by-step explanation:

w = width

l = length = w + 0.6

Area = ( l ) * ( w )

Area = ( w + 0.6 ) ( w )

Area = w^2 + 0.6w

Answer:

A

Step-by-step explanation:

Answer: 0.25 + 0.5x = 2.5

Step-by-step explanation:

0.25 = the how long his hair is right now

0.5 = how much it grows each month

X= how many months it takes to reach 2.5 inches of hair

2.5= how long he'd like his hair to be

Answer:

100,000 ÷ 1.25

100,000/1.25

80,000/1

80,000

The unit cost of the piece of land is 80,000 per hectare

Step-by-step explanation:

Answer:

11 1/5  hope this can help you

Step-by-step explanation:

Answer:

Step-by-step explanation:

if we have the proportion

7/5=a/8

a=(7*8)/5=56/5= 11 1/5

Answer:

4.75

Step-by-step explanation:

Area:3²π÷4-2×2÷2=4.75