How many linear equations make up a system of linear equations?

Answers

Answer 1
A system of linear equations is a set of two linear equations with two variables.

Related Questions

length=9in width=2in height=3in. what is the surface area

Answers

Answer:

102in2

Step-by-step explanation:

The formula for surface area is 2(wl+hl+hw). So plug in the measurements of the prism into the formula to get 102.

-.27(x-2.9t)^2+2.56 in standard form?
Please provide steps. Thank you!

Answers

Answer:

[tex]-\frac{27(-\frac{20t}{10}+x)^{n} }{50} +2.56[/tex]

Step-by-step explanation:

What is the slope of line a?

Answers

Answer:

1/3

Step-by-step explanation:

The slope of a line represents the variation in height per variation in length.

In our case, for every square you move up, you have to move 3 horizontally. The slope is thus

m= (vertical change) / (horizontal change) = 1/3

Answer:

1/3

Step-by-step explanation:

What is the circumcenter of ΔABC, if A(-7, 3); B(9, 3); and C(-7, -7)?

Answers

Answer: (1,-2)

Step-by-step explanation:

A map has a scale of 3 cm:20 km. Which statements are true? select all

Answers

Answer:

I believe the answer is A.

Step-by-step explanation:

Hope that helps!

What is the value of e

Answers

Answer:

E = 27.125

Step-by-step explanation:

Hope this helps you.

Answer:

e=56

Step-by-step explanation:

since the denominator is 8, what can you divide by 8 to get something that you can add to 23 and get 30.

30-23=7

56//8=7

If f(x)=3x^2-4, find f(-3)

Answers

F(-3)=77
Plug in -3 to x to solve

5 times 5 to the power of 2 in index form

Answers

Answer:

=5x5x5

Step-by-step explanation:

5x5^2

=5x(5x5)

=5x5x5

Answer:

625

Step-by-step explanation:

5×5 to the power of 2

25 to the power of 2

25×25 = 625

Britney is buying a shirt and a hat at the mall. The shirt costs $31.99, and the hat costs $19.89. If Britney gives the sales clerk $100.00, how much change should she receive? (Ignore sales tax.)

A. $45.02
B. $57.87
C. $48.12
D. $51.88

Answers

Answer:

C

Step-by-step explanation:

100-31.99-19.89=48.12

(1-2g+4h)x5=
dont find the answer just simplify the equation

Answers

Answer:

Hey bro ur answer is 5-10g +20h

Step-by-step explanation:

5(1-2g+4h)=5 x 1- (5 x 2g) + ( 5 x 4h) = 5-10g +20h

Please help me!!!! Both questions! Find the GCFs:!!

Answers

Answer:

See below.

Step-by-step explanation:

28x^2yz and 16xy^2

GCF of 28 and 16: 4

GCF of x^2yz and xy^2: xy

The GCF is 4xy.

5x^2y^4, 10x^3y^5, and 15xy^2

GCF of 5, 10, and 15: 5

GCF of x^2y^4, x^3y^5, and xy^2: xy^2

The GCF is 5xy^2.

-hope it helps

Hi! Hope you're enjoying your day!

First of all, the G.C.F. stands for

Greatest Common Factor

So we need to find the Greatest Common Factor of the polynomials.

And yea, polynomials have Greatest Common Factors as well.

So, let's find all the Greatest Common Factors. :)

First, we have

[tex]\bold{28x^2yz}[/tex] and [tex]\bold{16xy^2}[/tex]

What are the common factors of these polynomials?

Well, there are plenty of them, like 2, 2x, y...

What is the Greatest Common factor?

Is it Option A, 12xy?

No, because neither 28 nor 16 is divisible by 12.

So we cross out Option A.

Is it Option B, 8xy?

No, because 28 isn't divisible by 8, and remember, if a number is evenly divisible by another number, then that number is a factor.

Example: 8 is a factor of 16 (16÷8=2); 8 is not a factor of 28, because

28÷8=3.5 (a decimal, not a whole number)

Is it Option C, 4xy?

Yeah, it seems like Option C is the right option.

[tex]\huge\checkmark[/tex]Both 28 and 16 are divisible by 4

[tex]\huge\checkmark[/tex]Both polynomials have an x and a y in them

[tex]\rule{250}{2}[/tex]

Find the GCF:

[tex]\bold{5x^2y^4,\:10x^3y^5, \:and\:15xy^2}[/tex]

Once again, is it Option A, 5x^3y^5?

No, because

✘ 5 and 10 aren't divisible by 3

✘ None of the 3 polynomials has a 3y term

In other words, Option A is wrong.

How about Option B?

You should see right off the bat that 5 and 15 aren't divisible by 10.

So now we have 2 options left.

Is it Option C, 5xy²?

Well,

✓All 3 polynomials are divisible by 5

✓ All 3 polynomials have a y² term

✓ All 3 polynomials have an x term.

Hence, the answers are

[tex]\boxed{\boxed{\bold{1. \;Option\;C; 2.\;Option\;C.}}}[/tex]

Hope everything is clear.

If you have any questions, please comment.

#LearningIsFun

[tex]\rule{200}{2}[/tex]

please help me ASAP please help me with my homework please solve this please both Problem A and B please I beg you​

Answers

Answer:

A.

1. x = -5

2. x = -1

3. x = -2

4. x = 25/9

5. x = 1

B.

1. x ≤ 2

2. - 3≤ x ≤ 6

3. x ≤ 2

4. x ≤ 33/2

5. x ≤ 17/3

Step-by-step explanation:

Brainliest me please I answer it!!

A.

1. 5x + 12=2x-3

5x-2x= -12-33x/3= -15/3x = -5

2. 3x+6= -2x+1

3x+2x= -6+15x/5= -5/5x= -1

3. (x/2-4x=7)x2

2(x/2) - 2(4x)=7x2x-8x=14-7x/-7=14/-7x= -2

4. 1.4x - 0.4x=6.2+3.8

1x/1=10/1x=10

5. 5x-10+2x=7x+28-38

5x+7x-10=7x+28-3812x-10=7x+28-3812x-7x=28+10-385x=38-385x/5=0/5x=0

B.

1. 2x/2 ≤ 4/2

x=2

2. 2x+3 > -3

2x+3< 15

x= -3x= 6X=(-3,6)

3. 5x-4 >6

5x>6+45x/5 >10/5x >2

4. (2x./3+1/2>x-5)x6

6(2x/3)+6(1/2) > 6(x-5)4x+3 > 6x-304x-6x>-30-3-2x/-2 > -33/-2x< 33/2

5. 0.8+0.6x ≥4.2

0.6x≥4.2-0.80.6x/0.6 ≥3.4/0.6x= 5.666666667


Find m ?/1
U
T
30
19
s
97°
R
21

Answers

Answer:

Sis 97,U is 30,Tis19,R is 21and m is 37

Solve 18>12+x. Graph the solution.

Answers

Answer:

x < 6

Step-by-step explanation:

Step 1: Subtract 12 from both sides.

[tex]x+12-12 < 18-12[/tex] [tex]x < 6[/tex]

Therefore, the answer is x < 6.

5²+1=x, what is x? please help

Answers

Answer:

26

Step-by-step explanation:

[tex]5^{2}[/tex] = 5 · 5 = 25

then add 1

Answer:

26

Step-by-step explanation:

(5 x 5) + 1

25 + 1

26

Have an amazing day!!!

PLEASE RATE AND MARK BRAINLIEST!!!

need help can anyone help

Answers

Answer:

1: 23

2: 15/3 which reduces to 5

3:  12/4 which reduces to 3

Step-by-step explanation:

used a calculator

The diameter of a circle is 38 meters. What is the circle's circumference? Use 3.14 for ​pi

Answers

Answer:

119.32 m

Step-by-step explanation:

[tex]\textcolor{violet}{\text{Circumference of circle = 2πr = πd}} [/tex]

In the formula above, r is the radius and d stands for diameter.

Circle's circumference

= 3.14(38)

= 119.32 m

Chad drew a scale drawing of the middle school. The gym, which is 81 feet long in real life, is 9 inches long in the drawing. What scale did Chad use?
1 inch :
feet

GIVING 28 POINTS THE RIGHT ANSWERS!

Answers

Answer:

108 : 1

Step-by-step explanation:

1 foot = 12 inches

81 foot = 81 * 12 = 972 inches

Scale factor = 81 feet  : 9 inches

                    = 972 : 9

                    = 972 ÷ 9  : 9÷9

                    = 108 : 1

Answer:

12x+4x-7y+45b+78a-44b+1a+1z+0d+1.1a+1.1a+2+2+2

Select ALL the correct answers.

The base of a pentagon lies on ray AB as shown.


Determine which statements are true.


a. (2x + 14)° = 90°

b. X = 7°

c. (2x + 14)° + (7x + 13)° = 180°

d. (7x + 13)° = 132°

e. (2x + 14)° = 48°

Answers

Answer:

(2x + 14)° + (7x + 13)° = 180°

(2x + 14)° = 48°

(7x + 13)° = 132°

All 3 statements are true

Step-by-step explanation:

Maria is training for a triathlon. Yesterday, she rode her bike for eight and two-thirds miles in two-thirds of an hour. If Maria continues to rides at the same rate, how far will she ride in one hour?

HELP

Answers

Answer:

She will ride 13 miles in one hour

Step-by-step explanation:

(8 2/3) / (2/3) = x / 1....8 2/3 miles to 2/3 hr = x miles to 1 hr

cross multiply

(2/3)(x) = (8 2/3)(1)

2/3x = 26/3

x = 26/3 * 3/2

x = 26/2...which equals 13....she will ride 13 miles in 1 hr

The circumference of a circle is 7.5. What is it’s diameter?

Answers

For ALL circles the circumference (call it ‘C’) is equal to Pi x diameter (call it ‘d’),

so C = Pi x d

But we are told that C = Pi x 7.5

So Pi x d = Pi x 7.5

If we divide both sides of this equation by Pi, we are left with the equation d = 7.5, which is the answer.

ANSWER: The length of the diameter of the circle is 7.5 units of length.

Calculate the volume of this prism

Answers

Answer:

  800 cm³

Step-by-step explanation:

The volume is the product of the base area and the "height" of the prism. Here, the base can be considered to be a 10 cm × 12 cm rectangle with a 4 cm × 5 cm cutout. Its area will be ...

  A = (10 cm)(12 cm) -(4 cm)(5 cm) = 120 cm² -20 cm² = 100 cm²

The product of this base area and the 8 cm height of the prism is ...

  V = Bh = (100 cm²)(8 cm) = 800 cm³

The volume of the prism is 800 cm³.

Question -

If the ratio of the sums of first n^th terms of two AP's is (7n + 1):(4n + 27) find the ratio of their m^th terms.​

Answers

[tex]\rule{200}4[/tex]

Answer : The required ratio is (14m-6):(8m+23) .

[tex]\rule{200}4[/tex]

Here we are given that the ratio of sum of first n terms of two AP's is (7n + 1):(4n + 27) .

That is.

[tex]\small\sf\longrightarrow \dfrac{S_1}{S_2}=\dfrac{7n +1}{4n +27} \\[/tex]

As , we know that the sum of n terms of an AP is given by ,

[tex]\small\sf\longrightarrow \pink{ S_n =\dfrac{n}{2}[2a +(n-1)d]} \\[/tex]

Assume that ,

First term of 1st AP = a First term of 2nd AP = a'Common difference of 1st AP = dCommon difference of 2nd AP = d'

Using this we have ,

[tex]\small\sf\longrightarrow \dfrac{S_1}{S_2}=\dfrac{\dfrac{n}{2}[2a + (n-1)d]}{\dfrac{n}{2}[2a' +(n-1)d'] } \\[/tex]

[tex]\small\sf\longrightarrow \dfrac{7n+1}{4n+27}=\dfrac{2a + (n -1)d}{2a' + (n -1)d' } . . . . . (i) \\[/tex]

Now also we know that the nth term of an AP is given by ,

[tex]\longrightarrow\sf\small \pink{ T_n = a + (n-1)d}\\[/tex]

Therefore,

[tex]\longrightarrow\sf\small \dfrac{T_{m_1}}{T_{m_2}}= \dfrac{ a + (n-1)d }{a'+(n-1)d'}. . . . . (ii)\\[/tex]

[tex]\longrightarrow\sf\small \dfrac{T_1}{T_2}=\dfrac{2a + (2n-2)d}{2a'+(2n-2)d'} . . . . . (iii)\\[/tex]

From equation (i) and (iii) ,

[tex]\longrightarrow\sf\small n-1 = 2m-2\\[/tex]

[tex]\longrightarrow\sf\small n = 2m -2+1 \\[/tex]

[tex]\longrightarrow\sf\small n = 2m -1 \\[/tex]

Substitute this value in equation (i) ,

[tex]\longrightarrow \sf\small \dfrac{2a+ (2m-1-1)d}{2a' +(2m-1-1)d'}=\dfrac{7(2m-1)+1}{4(2m-1) +27}\\[/tex]

Simplify,

[tex]\longrightarrow\sf\small \dfrac{ 2a + (2m-2)d}{2a' +(2m-2)d'}=\dfrac{14m-7+1}{8m-4+27}\\[/tex]

[tex]\longrightarrow\sf\small \dfrac{2[a + (m-1)d]}{2[a' + (m-1)d']}=\dfrac{ 14m-6}{8m+23}\\[/tex]

[tex]\longrightarrow\sf\small \dfrac{[a + (m-1)d]}{[a' + (m-1)d']}=\dfrac{ 14m-6}{8m+23}\\[/tex]

From equation (ii) ,

[tex]\longrightarrow\sf\small \underline{\underline{\blue{ \dfrac{T_{m_1}}{T_{m_2}}=\dfrac{ 14m-6}{8m+23}}}}\\[/tex]

[tex]\rule{200}4[/tex]

Please help me out. I'll give BRAINLIEST, 5 stars and thanks!

Think a moment about factoring a polynomial by finding the GCF.
Explain the role of the GCF in factoring a polynomial.

Where is the GCF placed after factoring the GCF?

How do you verify factoring is correct?

Answers

Answer/Step-by-step explanation:

Explain the role of the GCF in factoring a polynomial.

The role of the GCF in factoring a polynomial is the largest monomial that divides evenly into each term. GCF is a factor that is shared by all terms within a polynomial. For instance, if we have a polynomial of the form A*B + A*C, the GCF is A since both terms have A as a factor.

Where is the GCF placed after factoring the GCF?

After factoring out the GCF, it's placed outside the parentheses, in front of the rest of the polynomial. Like the sample we previous use A*B+A*C = A(B+C).

How do you verify factoring is correct?

To Verify factoring is correct distributing the GCF to the polynomial within the parentheses.

~Learn with Lenvy~

3x +y = –15
-3x - 4y = 30
Which variable will eliminate in the system?

Answers

Answer:

x should be eliminated

hope it helps


Daina gives of his money to Carol. Carol gives of this money to Zak.
What fraction of Daina's money does Zak get?

Answers

Step-by-step explanation:

yo question doesn't make sense.

What is the sum of 12-5i and 3 + 4i?
•-16 + 63
•9-i
•9-9i
•15-9i

Answers

Answer: 2nd option: 9-i

Step-by-step explanation:

We can add the numbers and the terms with i separately.

12 - 5i - 3 + 4i = (12 - 3) + (-5i + 4i)

= 9 + (-i)

*Adding a negative is essentially subtracting a positive*

= 9-i

brainliest for free if you can solve this equation 3+5 +7 -6 ​

Answers

Answer:

The answer is

9

Step-by-step explanation:

[tex]3+5+7-6=9[/tex]

Therefore, 9 is your answer.

James grows corn on 1⁄4 of his land. If he has 65 acres of land, how much of the land is used for growing corn?

Answers

[tex]\left[Hello!\;Answer\;- > \;Below:][/tex]

Answer:

Decimal Form: 16.25

Fraction Form :16 1/4

Step-by-step explanation:

Given:

James Grows Corn 1/4 of his land

Note: 1/4 = .25

Question:

If he has 65 acres of land, how much of the land is used for growing corn?

Solve:

Thus;

65 x 1/4 or 65 x .25

which given you the answer;

16 1/4 or 16.25

[RevyBreeze]

ANSWER ASAP!!!! BRAINLIEST FOR THE PEOPLE WHO MAKE IT

Answers

Answer:

no idea

Step-by-step explanation:

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