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3 years ago

4.6x-9.3=27.5 NEED HELP asap

Mathematics

2 answers:

Natali5045456 [20]3 years ago

4 0

Answer:

Itchipilities chomplong kalachuchi

gavmur [86]3 years ago

3 0

Answer:

x=8

Step-by-step explanation:

4.6x-9.3=27.5

+9.3 +9.3

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

4.6x=35.8

4.6x/4.6 35.8/4.6

x=8

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Apply the distributive property to factor out the greatest common factor. 6+30=

Triss [41]

Answer:

6(1+5)

Step-by-step explanation:

The greatest common factor is 6

(6 + 30) = 6(1+5)

6(1+5) is the answer

Hope this helps :)

Have a nice day!

3 0

3 years ago

PLS help

lara [203]

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3 years ago

Hannah has a small square shaped garden with an area of 196 square feet. If she wants to put a fence around the garden, how many

Mazyrski [523]

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A square is a quadrilateral that has the same length on every side.

The area of the garden is 196 square feet. To find the area of a garden, you have to multiply the length times the width. Since you know that both widths are the same, you can simply just calculate the square root of 196. The square root of 196 is 14. So you know that one side is 14 feet in length.

Now you will need to find the perimeter. The perimeter of any polygon is the lengths of all sides added up. Since there are 4 sides on a square, and each side is the same length, you can just add 14, 4 times. 14+14+14+14 equals 56. So the perimeter of the garden is 56 feet.

Hannah will need 56 feet of fencing.

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4 0

3 years ago

(1Q) Find a function for the graph below

anzhelika [568]

ANSWER

$f(t) = - 3 \sin(3t)$

EXPLANATION

The given function has range:

-3≤f(t)≤3

This implies that, the amplitude is

$|a| = 3$

The function is symmetric with respect to the origin so this is a sine function.

This function is again reflected in the x-axis, hence

a=-3.

The period of this function is

$\frac{2\pi}{b} = \frac{2\pi}{3}$

This implies that, b=3,

hence the equation of the function is

$f(t) = - 3 \sin(3t)$

3 0

3 years ago

3. Solve:

Leto [7]

Answer: A

Step-by-step explanation:

Take 2 equations that make one of their letters disappear, and add them up:

2x + y + z = 1

x - y + 4z = 0

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

3x + 5z = 1

Do the same with another 2 equations in which the letter, in this case y, can be removed. If you can't, take 2 of 3 equations and equal the value of the letter to make it eliminable.

x - y + 4z = 0

x + 2y - 2z = 3

Since we can't eliminate y, we have multiply as necessary to make it eliminable:

2 (x - y + 4z = 0)

= 2x - 2y + 8z = 0

add all up:

2x - 2y + 8z = 0

x + 2y - 2z = 3

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

3x + 6z = 3

Now we've gone from a 3-variable equation to a 2-variable equation.

3x + 5z = 1

3x + 6z = 3

We can solve again by elimination; to get rid of z, for example, we cross multiply. the upper equation by 6 and the lower equation by 5. However, we have to make one of them negative in order to make them eliminable.

6 (3x + 5z = 1)

-5 (3x + 6z = 3)

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

18x + 30z = 6

-15x - 30z = -15

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

3x = - 9

Solving for x;

x = $\frac {-9}{3}$

x = - 3

After finding one variable, we can use our 2-variable equations to find the next variable:

3x + 5z = 1

3 (-3) + 5z = 1

- 9 + 5z = 1

5z = 1 + 9

5z = 10

z = $\frac{10}{5}$

z = 2

Having found these 2 variables, we can put them into one of our main 3-variable equations to find the last one:

2x + y + z = 1

2(-3) + y + 2 = 1

- 6 + y + 2 = 1

y - 4 = 1

y = 1 + 4

y = 5

And you've found all the variables in the equation; to prove if they're correct or not, you can replace them in any of the main equations and the result should be equal to each other:

x + 2y - 2z = 3

-3 + 2(5) - 2(2) = 3

- 3 + 10 - 4 = 3

10 - 7 = 3

3 = 3

7 0

3 years ago