Which of the following is NOT a method to solve systems?
a) Elimination
b) Difference of Squares
c) Substitution
d) Graphing

Answers

Answer 1
B because not all sums need difference of squares

Related Questions

what is the slope of the line that contains points (3,-9) and (-2,16)

Answers

The slope would be -5

Hope this helps

Have a great day/night

HELP ! PROBABILITY !
Easy

Answers

Answer:

The probability is zero

Step-by-step explanation:

Probability

There are 3 white counters and 2 black counters in a bag. One of them is chosen at random.

It's required to calculate the probability that a green counter has been chosen.

The probability of an outcome is defined as the frequency of the number of times the outcome occurs relative to the number of times that it could have occurred.

The equation to calculate the probability is:

[tex]P=\frac{f}{n}[/tex]

Where f is the number of favorable cases and n is the total cases.

Since there are no green counters in the bag, it's impossible to choose a green counter, thus f=0 out of n=5 total cases:

[tex]P=\frac{0}{5}[/tex]

P = 0

We have put the cross in the mark 0 on the probability scale below

Answer:

0

Step-by-step explanation:

Solve for r.
Ar + By = C

Answers

Answer:

r = (C - By) / A

Step-by-step explanation:

Ar + By = C

_________

-By -By

[Subtract both sides by By (Subtraction poe)]

Ar = C - By

________

(Ar) = (C - By)

[Use parenthesis to group both terms (Associative property of equality)]

________

÷A ÷A

[Divide both sides by A to isolate r so it can be solved (Division poe)]

________

r = (C - By) / A

The entry ticket to a local football game costs $10 for an adult and $5 for a child. A group of 100 people paid an entry fee of $710. How many adults and how many children were there in this group?

Answers

Answer: Adults = 58

Children = 42

Step-by-step explanation:

Let adults be denoted as a

Let Children be denoted as c

a + c = 100 ...... i

10a + 5c = 710 ...... ii

Multiply I by 5

Multiply ii by 1

5a + 5c = 500 ...... iii

10a + 5c = 710 ...... iv

Subtract iii from iv

5a = 210

a = 210/5

a = 42

Since a + c = 100

c = 100 - 42 = 58.

Adults = 58

Children = 42

Find the first 5 terms of 6n+2

Answers

Answer:

2, 8, 14, 20, 26

Step-by-step explanation:

At n=0

2 x 0 +2=2

At n=1

6 x 1 +2=8

At n=2

6 x 2 +2 = 14

At n=3

6 x 3 +2 = 20

At n=4

6 x 4 +2 = 26

10 points and brainliest

Answers

Answer: D

Step-by-step explanation:

Given that B is the midpoint of segment AC, find the unknown values.
7.
X=
AB=
2X-8
x + 17
А
B
с
BC =
AC =
can someone please help me with this question and show work and steps to this math geometry question?? PLEASE

Answers

hi! for x, you need to do 2x-8 = x+17 and solve, because since b is the midpoint, ab and bc would be congruent.

2x-8 = x+17
1x-8 = 17
1x = 25
x = 25

in order to find ab, you plug in the x into the expression.

ab = 2x-8
ab = 2(25)-8
ab = 42

do the same for bc:

bc = x + 17
bc = 25 + 17
bc = 42

and for ac, combine the two expressions and plug in the value for x.

ac = ab + bc
ac = 2x-8 + x+17
ac = 2(25)-8 + 25+17
ac = 84

i hope this helped! have a good day/night :)

.
What is the solution to this equation?
30.16 = 17.56 + 5x

Answers

Answer:

x = 2.52

Step-by-step explanation:

30.16 = 17.56 + 5x

30.16 - 17.56 = 5x

12.6 = 5x

12.6/5 = 5x/5

2.52 = x

I need number 4 solved please

Answers

Answer:

I honestly do cannot read this, can you try zooming in and then taking the screen shot?

Step-by-step explanation:

determine whether the triangles are similar by aa , ss , or sas ??

Answers

Answer:

1. AA

2. SSS

3. I´m not sure about this one, I´m sorry

4. Not similar

Step-by-step explanation:

This photo can help you identify!! I hope this helps

Which expression can be used to find the total cost of 4 bags of apples at $3.30 per bag and 6 candy bars at $1.25 each? *
4(1.25) + 6(3.3)
10(3.3)
4(3.30) + 6(1.25)
4(3.30) - 6(1.25)

Answers

Answer:

a

Step-by-step explanation:

Answer:

4(3.30)+ 6(1.25)

Step-by-step explanation:

because you would multiply 4 and 3.30 and 6 ×1.25 :)

the equation for simple interest is I= p r t (I=interest, p=principal, r=rate, t=time) Find the simple interest paid to the nearest cent for a loan of $1750 at 12% for 18 months (1.5 years).

Answers

Answer:

Simple Interest = $315

Step-by-step explanation:

The formula for Simple Interest

I = P× R × T

I=interest, p=principal, r=rate, t=time

P = $1750

R = 12% = 0.12

T = 1.5 years

I = $1750 × 0.12 × 1.5

I = $315

Use the distributive property to expand the expression (8x + 3y) - (5z + 3)​

Answers

Answer:

8x+3y-5z-3

Step-by-step explanation:

8x+3y-5z-3

Just multiply the second parenthesis with the minus for your answer.

Distribute the negative sign to the expression inside the parenthesis.

8x + 3y - 5z - 3

what is the perimeter?

Answers

Answer:

14

Step-by-step explanation:

because the side length are 5 and 5 and 4 which is 14.

plz mark the brainliest

what is the distance between the points F(-3,8) and G(4,5)?

Answers

(7,3) i’m pretty sure! tell me if i’m incorrect.

. FIRST TO ANSWER GETS BRAINLY
Subtract and reduce to lowest terms:6/9 pluse 4/9

Answers

Answer:

1 1/9

Step-by-step explanation:

I did 6/9 plus 4/9 = 10/9 so you divide 10 by 9 and it will give you 1 and 1/9 hope this is right and helpful

Does 1.414213562 round to the nearest tenth.

Answers

Hey there!

Yes, it does. It rounds to 1.4.

1.414213562 rounded to the nearest tenth is 1.4, since the next number is less than 5, the 4 stays the same. If the next number was a 5 or greater, it would be 1.5, instead of 1.4.

Hope this helps! Good luck and have  great day!

Answer:

If I'm not.mistaken.I do believe the answer is 1.5

For the function f (x) = 3 (x + 7), find -1().

Answers

Given:

The function is [tex]f(x)=3(x+7)^{\frac{1}{4}}[/tex].

To find:

The function [tex]f^{-1}(x)[/tex].

Solution:

We have,

[tex]f(x)=3(x+7)^{\frac{1}{4}}[/tex]

Substitute f(x)=y.

[tex]y=3(x+7)^{\frac{1}{4}}[/tex]

Interchange x and y.

[tex]x=3(y+7)^{\frac{1}{4}}[/tex]

Divide both sides by 3.

[tex]\dfrac{x}{3}=(y+7)^{\frac{1}{4}}[/tex]

Taking power 4 on both sides.

[tex]\left(\dfrac{x}{3}\right)^4=y+7[/tex]

Subtract 7 from both sides.

[tex]\left(\dfrac{x}{3}\right)^4-7=y[/tex]

[tex]y=\left(\dfrac{x}{3}\right)^4-7[/tex]

Substitute [tex]y=f^{-1}(x)[/tex].

[tex]f^{-1}(x)=\left(\dfrac{x}{3}\right)^4-7[/tex]

Therefore, the correct option is C.

The problem of (-1)(-1)(-1) would be negative True or False

Answers

Answer:

True

Step-by-step explanation:

There are an odd number of negative signs (3)

If there is an odd number it is negative, but if it is even then the result will be positive

Here's a deeper explanation

-1 times -1 is simply 1

Then 1 times -1 is -1

Our final answer is -1 so this is true.

Answer:

true

Step-by-step explanation:

Which expression has a value of 507
O A. 2x52
B. 2 x 55
C. 5 x 52
D. 5x25

Answers

Answer:

.............,...........,.......................... ans is b

6 over 35 + 4 over 7= ?​

Answers

Answer:

hgfgdfsdfdgfhkjlkjhgfrderftryu

Step-by-step explanation:

Answer:

26/35

Step-by-step explanation:

6/35+4/7

you need to make the second fraction have the same denominator

to do this, you need to do 7 times 5 to make 35

times the numerator by the same

this would mean:

6/35+20/35=26/35

i hope i helped

please mark it as brainliest!!<3

Identify the vertical asymptotes, horizontal asymptotes, domain, and range of each. Then sketch the graph. f(x)= 2/x +2

Answers

Answer:

Vertical Asymptote at x=0

Horizontal Asymptote at y=2

Domain: x= infinity and x doesn't = 1

Range: y= infinity and y doesn't = 2

Step-by-step explanation:

The ratio of books to magazines in the classroom is 7:3. If there are 28 books in the
classroom, how many magazines are in the classroom?

Answers

Answer:

Step-by-step explanation:

7 books.................................3 magazines

14 books.................................6 magazines

21 books................................9 magazines

28 books..............................12 magazines

of course we ca do it

7/3=28/x

x=(3*28)/7=12

susan reads 130 pages of a book in 2.5 days if she reads the same amount each day how many pages did she read

Answers

Answer:

52 pages

Step-by-step explanation:

130/2.5=52

Answer:

52 pages per day

Step-by-step explanation:

130 divided by 2.5 is equal to 52. So therefore, 52 pages were read.

Hope this helps!!

3/4 x 1/2
Help need it plss ;-;

Answers

Answer:

3/8

Step-by-step explanation:

3/4 divide 2 = 4÷2= 3/8

Answer:

3/4 * 1/2 = 3/8

The answer is 3/8

Try It!
» 3. Write the equation in slope-intercept form of the line that passes through
the points (5, 4) and (-1, 6).

Answers

Answer:

y=-1/3x + 17/3

Step-by-step explanation:

Just follow the slope-intercept form formula-

Formula: y=mx+b

Key:

y = y-coordinate

m = slope

x = x-coordinate

b = y-intercept

Let me know if you have any questions, hope this helps! (:

There are 40 students in the class. 15 of them likes to study English, 1/4 of the students likes to study mathematics and the remaining students likes to study science. What fraction of students likes to study English​

Answers

Answer: 3/8

Explanation:
1. The original fraction is 15/40
2. Find the greatest common factor (GCF) of the numerator and the denominator (in this case it's 5)
3. Then divide both the numerator (15) and the denominator (40) by the GCF (5) to simplify the fraction.
15÷5=3
40÷5=8

Which inequality describes all the solutions to -5x + 6 < 2(-3 - x)? A. X > 4 B. x < 0 C. x < 4 D. X > -9​

Answers

Answer:

x>4

Step-by-step explanation:

-5x+6<2(-3-x)

-5x+6<-6-2x

-5x+6+2x<-6-2x+2x

-3x+6<-6

-3x<-12

*The length of the congruent sides of an isosceles triangle is 17cm. If the base of the triangle is 16 cm, find the length of the median.*

1️⃣ 18 cm
2️⃣ 8 cm
3️⃣ 15 cm
4️⃣ 8.5 cm​

Answers

Answer:

The median is 15cm.

Step-by-step explanation:

Given that the The length of the congruent sides of an isosceles triangle is 17cm . the base of the triangle is 16 cm . And we need to find the median .

We know that in a isosceles triangle

All perpendicular bisector , altitude and median concide with each other.

This means that the base will be divided into two equal parts For Figure refer to attachment .

Using Pythagoras Theorem :-

⇒ BM² + AM² = AB²

⇒ (17cm)² = (8cm)² + AM²

⇒ 289 cm² = 64cm² + AM²

⇒ AM² = 289 cm² - 64 cm²

⇒ AM² = 225 cm²

⇒ AM = √225 cm²

AM = 15 cm .

Hence the measure of median is 15 cm .

a recipe calls for 1.5 cups of sugar for one cake how much sugar would you need to make six cakes​

Answers

Answer:

9 Cups

Step-by-step explanation:

Answer:

The answer is 9 cups.

Step-by-step explanation:

You know that you need 1.5 cups for each cake. And you know that you need to make 6 cakes. So you just multiply 1.5 by 6.

1.5*6=9

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