1. On graph paper, draw diagrams of a+a+a+a and 4a when a is 1, 2, and 3. What do you notice?

2. Do a+a+a+a and 4a have the same value for any value of a ? Explain how you know.

PLEASE HELP I WILL MARK BRAINLIEST
PLEASE HELP

Answer:

x=3 y=-1

Step-by-step explanation:

substitute into one of the equations: 4x+2x-7=11

rearrange unknown terms to the left side of the equation: 4x+2x=11+7

combine like terms: 6x=18

divide both sides by x: x=18/6

calculate to product: x=3

Same thing for y:

y=2x3-7

y=6-7

y=-1

Solution:

x=3

y=-1

Answer:

Step-by-step explanation: x would have to equal 5

Answer:

\(x_1=2\)

\(x_2=-1\)

Step-by-step explanation:

\(x-2=x^2-4\)

\(0=x^2-x-4+2\)

\(0=x^2-x-2\)

Let's find x-intercepts. It is when \(y=0\)

I will use the quadratic equation

\($x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$\)

\($x=\frac{-\left(-1\right)\pm\sqrt{\left(-1\right)^2-4\cdot \:1\cdot \left(-2\right)}}{2\cdot \:1}$\)

\($x=\frac{1\pm\sqrt{9}}{2}=\frac{1 \pm 3}{2} $\)

\(x_1=2\)

\(x_2=-1\)

Answer:

\(\Large \boxed{x=2} \\ \\ \Large \boxed{x=-1}\)

Step-by-step explanation:

\(x-2=x^2-4\)

Subtract (x² - 4) from both sides.

\(x-2-(x^2-4)=x^2-4-(x^2-4)\)

Distribute negative sign.

\(x-2-x^2+4=x^2-4-x^2+4\)

Combine like terms.

\(-x^2 +x+2=0\)

Factor left side of the equation.

\(-x^2 -x+2x+2=0\)

\(-x(x+1)+2(x+1)\)

Take (x+1) as a common factor.

\((-x+2)(x+1)\)

Set factors equal to 0.

\(-x+2=0 \\ \\ -x=-2 \\ \\ x=2\)

\(x+1 \\ \\ x=-1\)

The solutions to the equation are x = 2 or x = -1.

Answer: 1. a. 15     b. 11     c. 2     d. 7     e. 5.5

2.  Stem:                   Leaf:

        1                           9

        2                         5, 9

        3                        3, 3, 8

        4                        0, 7, 9

        5                          4, 5

        6                           1, 5

        7                           2, 7

        8                             1

3. a. 13 inches        b. I'm pretty sure that it is the second quarter because there is more snow.           c. The first quarter because it's section is more spread out among the numbers.

Step-by-step explanation:

Hello!

rectangle triangle => Pythagore

13² = 12² + x²

169 = 144 + x²

x² = 169 - 144

x² = 25

√x² = √25

x = 5

Answer:

3000+400+30+9+0.30+0.06, very simple

Step-by-step explanation:

no need

Answer:300000400003000900306

Step-by-step explanation:there you go you just right a 0 for each number

Answer:

54

Step-by-step explanation:

Use PEMDAS

1. 6 x 6 + 12 + 3 x 2  (multiply 6 and 6)

2.  36 + 12 + 3 x 2  (multiply 3 and 2)

3. 36 + 12 + 6 (combine like terms, so add them)

4. 54 (final answer)

Answer:

Step-by-step explanation:

\(6\times6+12+3\times2=???\\\\\mathrm{Follow\:the\:PEMDAS\:order\:of\:operations}\\\\\mathrm{Multiply\:and\:divide\:\left(left\:to\:right\right)}\:6\times \:6\::\quad 36\\=36+12+3\times \:2\\\\\mathrm{Multiply\:and\:divide\:\left(left\:to\:right\right)}\:3\times \:2\::\quad 6\\=36+12+6\\\\\mathrm{Add\:and\:subtract\:\left(left\:to\:right\right)}\:36+12+6\:\\:\quad 54\)

Answer:

A

Step-by-step explanation:

a negative number can not be greater than 0

Answer:

To solve the equation -(x + 3) = 2(x - 3) for x, we can follow these steps:

Step 1: Distribute the negative sign on the left side of the equation:

-(x + 3) = 2(x - 3)

=> -x - 3 = 2(x - 3) (using the distributive property)

Step 2: Expand the right side of the equation:

-x - 3 = 2x - 6

Step 3: Add x to both sides of the equation to isolate the x term on one side:

-x + x - 3 = 2x + x - 6

=> -3 = 3x - 6

Step 4: Add 6 to both sides of the equation:

-3 + 6 = 3x - 6 + 6

=> 3 = 3x

Step 5: Divide both sides of the equation by 3 to solve for x:

3/3 = 3x/3

=> 1 = x

So, the correct value of x that makes the equation true is B. 1.

PLEASE MARK BRAILYISTT :D

Answer:

B, one

Step-by-step explanation:

In order to solve this, you can solve the equation. First, you can use the distributive property to get -x-3=2x-6. If you make the variables on one side and the constants on the other, you will get -3x-3=-6. This can further simplify to -3x=-6. Divide both sides by -3 to get that x=1. Then, the correct answer is B.

Answer:

20

Step-by-step explanation:

Using the distance formula

Answer: all you got to do is count all the space and you well get  close to the -10 to be 6 -7

Step-by-step explanation:

Answer:

70

Step-by-step explanation:

see attached image for sol

Answer:

\(\frac{18}{7}\)

Step-by-step explanation:

\(2\frac{4}{7}\)

→ Multiply 7 by 2 then add 4

7 × 2 = 14 + 4 = 18 ⇔ Numerator

7 ⇔ Denominator

Answer: 18/7

Explanation: To write a mixed number as an improper fraction, first multiply

the denominator times the whole number, then add the numerator.

So here, we multiply the denominator, 7, times the

whole number, 2, then we add the numerator, 4.

So we have (7 × 2) + 4 or 14 + 4 which is 18.

Finally, we put our new number over our

old denominator and we have our answer, 18/7.

So 2 and 4/7 can be rewritten as the improper fraction 18/7.

Answer:

(x-2)

----------------

x^3

Step-by-step explanation:

(x^2 -4)        x^3 -x^2 -6x

------------     ÷ ---------------------

x^3 + 7x^2        x^2 +4x -21

Copy dot flip

(x^2 -4)            x^2 +4x -21

------------     *  ---------------------

x^3 + 7x^2         x^3 -x^2 -6x

Factor

(x-2)(x+2)        (x+7)(x-3)

------------     *  ---------------------

x^2(x+7)         x(x-3)(x+2)

Cancel like terms

(x-2)                  1

------------     *  ---------------------

x^2                     x

(x-2)

----------------

x^3

Answer: Answer is D

Step-by-step explanation:

Answer:

Rectangle's is 28

Step-by-step explanation:

We multiply 9 * 4 to get rectangless shape and then we substract squares (2) shape 2*2*2

(9*4) - (2*2*2)= 28

Answer:down

Step-by-step explanation:

independent value: Time (in weeks)

didnt see if this was a multiple choice problem because there wasnt a pdf.

but if it is, they want to know how your going to solve the equations given from the weekly balance.

Step-by-step explanation:

0.5% of w is 12 is what they are asking

0.5% of w = 12. Only the first answer has the equation equal to 12, so the first part is

\(12 = 0.005 \times w\)

Now to solve it, we want to get W alone, we can do that by dividing 0.005 on both sides. Since right now it's being multiplied we must do the opposite

\(w = \frac{12}{0.005} = 2400\)

Answer:

0.5% of w is 12 is what they are asking0.5% of w = 12. Only the first answer has the equation equal to 12, so the first part isNow to solve it, we want to get W alone, we can do that by dividing 0.005 on both sides. Since right now it's being multiplied we must do the opposite

Step-by-step explanation:

Answer: Rational Numbers?

Step-by-step explanation:

Not sure though, but I hope it helped

Answer:

d

Step-by-step explanation:

the circumference of the moon is 10,921 km

Answer: 5 cups of raisins

Step-by-step explanation:

Answer: 5

Step-by-step explanation:

1. 2/3 for 8

2. x for 60

3. 60x2/3=40

4. 40/8=5

5. 5 cups of raisins are needed for 60 servings.

Answer:

x is 5 

Step-by-step explanation:

Answer:

The tenths are the first number behind the decimal point, hundredths are second, then thousandths and ten-thousandths

Step-by-step explanation:

Answer:

I think you go in order from smallest to largest go in this order. 0.9, 0.8, 0.7  0.6, 0.5, 0.4, 0.3, 0.2, 0.1, 0.0, 0.0, 0. then put the 1 from the top of the page down to the ones on the Nearest ten cart, also put the 1.0 in the nearest 10 cart.

Step-by-step explanation:

I tried to figure it. hope it works.

Answer:

Step-by-step explanation:

you have to multiply with both x and 12

14(x + 12) = 2

7(x + 12) = 1

x+12=1/7

x=-83/7

Answer: The answer is false!

Step-by-step explanation: You may think its true but NO, its not true!

Answer: false

Step-by-step explanation:

the correct answer is a dialect of spanish, chilean spanish.

Answer:

Hello! Your answer is shown below!

No , Jude’s graph is incorrect . The inequality symbol is “ less than , ” so - 9 is not included . He should have used an open circle on - 9 .

- Hope I helped ! <3

- Have a great day ! (\^u^\)

2385  I think

Step-by-step explanation:

The total number of fiction books in the library are 2385.

The constant of proportionality is the ratio of two proportional values at a constant value.

Let the total number of fiction books be f and nonfiction books be n.

According to the given question.

The constant of propotionality between the number of fiction book(f) and the number of non-fiction books(n) in a library is \(\frac{15}{22}\).

\(\implies \frac{f}{n} = \frac{15}{22}\)

Also, the total number of nonfiction books is 3498.

Therefore,

\(\frac{f}{3498} = \frac{15}{22}\)

\(\implies f = \frac{15}{22} \times 3498\)

\(\implies f = 15\times 159\)

\(\implies f = 2385\)

Hence, the total number of fiction books in the library are 2385.

Find out more information about constant of proportionality here:

https://brainly.com/question/8598338

#SPJ2

Answer: 3.14 multiplied by 35 squared gives you 3,850, So the answer is C

Step-by-step explanation:

Answer: y = -1/4x - 6

Step-by-step explanation: the slope is -1/4 because slope = rise/run, the rise is 1, and the run is 4 and the slope is negative. the y intercept is -6 because it passes through -6 at the y axis.

Answer:

-1/4x + -6

Step-by-step explanation:

The slope is -1/4 because slope = \(\frac{rise}{run}\),

So:

-\(\frac{1}{4}\) is the slope, also is negative.

The y intercept is -6 because it passes through -6 at the y axis.

( I also checked it on khan Academy and it was correct)

Hope this helps :)

Pls brainliest...