find the area plzz!!​

The solution to an equation is the true value of the equation

So, Maria's solution is incorrect

The equation is given as:

[tex]-5n = -9[/tex]

And the solution is given as:

[tex]n = 1[/tex]

To determine if her solution is correct, then she needs to substitute her solution in the given equation.

In other words, substitute 1 for n in [tex]-5n = -9[/tex]

[tex]-5 \times 1 = -9[/tex]

Multiply -5 and 1

[tex]-5 = -9[/tex]

The above equation is false.

This is so, because -5 does not equal -9

i,e, [tex]-5 \ne -9[/tex]

Hence, Maria's solution is incorrect

Read more about equation solutions at:

https://brainly.com/question/13729904

Answer:

2 3/10

Step by step explanation:

Answer:

C. Cos(60°) = Sin(30°)

Step-by-step explanation:

Cos(60°) = 0.5

Sin(30°) = 0.5

Answer:

x*4+x*y

Step-by-step explanation:

Answer:

4x+xy

Step-by-step explanation:

Just multiply x to both terms:

x(4+y)

x*4 + x*y

4x + xy

Hope this helped :)

Answer:

y = kx for  fixed constant k

20 = k(4)  -->  20 = 4k --> k=5

y = 5x

30 = 5x

x=6

Step-by-step explanation:

Answer: b sorry if im wrong

Step-by-step explanation:

b o edge

Answer:

22.7 miles

Step-by-step explanation:

19+8.7=22.7

Answer:

x = -2

Step-by-step explanation:

Arrange 6x + y= -5, -6x + 12y=96 vertically:

6x + y= -5

-6x + 12y=96       Now combine like terms:

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

       13y = 91

Solving for y by dividing both sides by 13:  y = 7

Find x by substituting 7 for y in the second equation:  -6x + 12(7) = 96

Then -6x = -84 + 96, or:

-6x = 12, and so x = -2

Answer:

a) third degree trinomial

Step-by-step explanation:

The degree of a polynomial is the same as the degree of the term of the polynomial with the highest degree. The degree of a term is the sum of all the exponents of the variables of the term. Remember that a variable such as x, or y, or z has degree 1.

Now we look at the degree of each term:

2x: degree 1 (since x is the same as x^1)

10x^2: degree 2

-x^3: degree 3

The term with highest degree is the last term which has degree 3, so the degree of the polynomial is 3.

The polynomial has 3 terms, so it is a trinomial.

Answer: a) third degree trinomial

Answer:

rational

Step-by-step explanation:

Answer: C

Step-by-step explanation:

Answer:

In mathematics, a radical expression is defined as any expression containing a radical (√) symbol. Many people mistakenly call this a 'square root' symbol, and many times it is used to determine the square root of a number. However, it can also be used to describe a cube root, a fourth root, or higher. When the radical symbol is used to denote any root other than a square root, there will be a superscript number in the 'V'-shaped part of the symbol. For example, 3√(8) means to find the cube root of 8. If there is no superscript number, the radical expression is calling for the square root.

The term underneath the radical symbol is called the radicand.

I hope it's helpful!

Answer:

y=0,25x

Step-by-step explanation:

1×0,25=0,25

2×0,25=0,5

3×0,25=0,75

4×0,25=1,0

5×0,25=1,5

hope it'll help you dude

Answer:

xy = - 27

Step-by-step explanation:

Note that

(x - y)² = x² - 2xy + y² ← substitute given values, that is

9² = 27 - 2xy

81 = 27 - 2xy ( subtract 27 from both sides )

54 = - 2xy (divide both sides by - 2 )

- 27 = xy

Answer:

72 square units

Step-by-step explanation:

I asked my parents they agree, but i'm not sure if it's right or not.

==============================================================

Explanation:

The value of k determines the slope, or rate of change, of how fast the balloon is climbing per second.

For example, if k = 5, then that means the balloon is going upward at 5 feet per second (equivalent to roughly 3.41 mph)

If k = 5, then y = kt becomes y = 5t. Note how we have the following

and so on. Each time t goes up by 1, d goes up by 5. This is one way to see how the speed is 5/1 = 5 ft per second.

Answer:

Probability that the product is an odd number =  [tex]\frac{1}{7}[/tex]

Step-by-step explanation:

Given - Patryk has 7 cards.  There is a number on each card.  2 3 4 5 6 7 8

            Patryk takes two of the cards at random.  He works out the product  

            of the numbers on the two cards.

To find - Work out the probability that the product is an odd number.

Proof -

As we know that Product of two numbers is odd iff both the numbers are odd.

So, we have to find the probabilty that both the card that Patryk choose is odd

Now,

Total number of cards = 7

Total number of odd cards = 3

So, Probability = ³C₂ / ⁷C₂

                       = [tex]\frac{3!}{2! (3-2)!}. \frac{2! (7 - 2)!}{7!}[/tex]

                      = [tex]\frac{3!}{2! (1)!}. \frac{2! (5)!}{7!}[/tex]

                      = [tex]\frac{3!}{(1)!}. \frac{ (5)!}{7.6.5.4.3!}[/tex]

                      = [tex]\frac{ 5.4.3.2.1}{7.6.5.4}[/tex]

                      = [tex]\frac{1}{7}[/tex]

∴ we get

Probability that the product is an odd number =  [tex]\frac{1}{7}[/tex]

Answer:

yarrak anladın yoksa sıkılırım karşim

Answer:

base=24

Step-by-step explanation:

2*4=8

192/8=24

Answer:

1st one: 270 ft ^2

2nd: 30 square yards

Step-by-step explanation:

The first one you have to find the area. 15×18= 270

The second one you take the previous answer and divide by 9= 30 square yard. (Might be wrong?)

Answer:

$20

Step-by-step explanation:

To find the total bill, divide the tip amount by 0.15

3/0.15

= 20

So, his total bill was $20

Answer:

A

This other person is correct about the answer the dependent variable is the variable that is being measured or tested in an experiment and response variable is a another way of saying that.

Answer:response variable

Step-by-step explanation:

plato

Answer:

V = πr²h

Step-by-step explanation:

r = radius of circle

h = height of cylinder

Step-by-step explanation:

The formula for the volume of a cylinder is V=Bh or V=πr2h . The radius of the cylinder is 8 cm and the height is 15 cm. Substitute 8 for r and 15 for h in the formula V=πr2h . ... Therefore, the volume of the cylinder is about 3016 cubic centimeters.

Answer:

Option c

Step-by-step explanation:

-2x-10=-2(x+5)

Answer:

second is the answer okkkkkkkkkkkkkkkk

Answer:

L = 24,873.6 miles

Step-by-step explanation:

Length of the Circumference

Given a circle of radius r, the length of the circumference, or line surrounding the shape is:

The Earth has a diameter of 7,917.5 miles. The radius is half the diameter:

r=7,917.5/2=3,958.75 miles

Assuming a plane flies around the equator at ground level, the distance it would travel is:

L = 24,873.6 miles

Answer:

X=35°

Y=70°

Z=110°

I think this ans may help you

Answer and Step-by-step explanation:

We know that the lines are parallel. So,

x is equal to 70° because of vertical angles theorem.

y is equal to 70° because of interior angles theorem.

2z = y

2z = 70

z = 35

z is equal to 35 because of division property of equality.

#teamtrees #WAP (Water And Plant)

Answer:

I think is number 2 in the corner