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Cloud [144]
3 years ago
5

Factorise 12x - 30 please help

Mathematics
2 answers:
Marat540 [252]3 years ago
7 0

Answer:

6(2x-5)

Step-by-step explanation:

Fatorizar a expressão

Ainat [17]3 years ago
3 0

Answer:

6(2x-5)

Step-by-step explanation:

Find the Greatest Common Factor (GCF).

1 What is the largest number that divides evenly into 12x12x and -30−30?

It is 66.

2 What is the highest degree of xx that divides evenly into 12x12x and -30−30?

It is 1, since xx is not in every term.

3 Multiplying the results above,

The GCF is 66.

Factor out the GCF. (Write the GCF first. Then, in parentheses, divide each term by the GCF.)

6(\frac{12x}{6}-\frac{30}{6})

6(

6

12x

−

6

30

)

3 Simplify each term in parentheses.

6(2x-5)

6(2x−5)

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Pentagon ABCDE is a regular polygon. The length of side BC is represented by 3x - 4. The length of side DE is represented by the
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Answer:

Length of side AB = 5

Step-by-step explanation:

A regular polygon is one in which all angles are equal and all the sides have the same length.

Now, it means that;

AB = BC = CD = DE = AE

We are told that BC is represented by 3x - 4 while DE is represented by the expression 4x - 9.

Thus, from equal length of sides of a regular polygon, we have;

3x - 4 = 4x - 9

4x - 3x = 9 - 4

x = 5

Thus, length of BC = 3(5) - 4 = 15 - 4 = 11

Therefore, Length of AB = 5

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3 years ago
What is the intermediate step in the form (x+a)^2=b as a result of completing the following equation? Please help.
aksik [14]

Answer:

(x+8) ^2=64

Step-by-step explanation:

that will give you your two solutions: x= -16 and x=0. I hope this helps!!!

8 0
3 years ago
Austin's Coffee Shop makes a blendd that is a mixture of two types of coffee. Type a coffee costs bill $5.70 per pound and type
IceJOKER [234]

Answer:

He use 97 pound of type A coffee

Step-by-step explanation:

Let's call A the pounds of type A coffee that Austin used this month and B the pounds of type B coffee that Austin used this month.

From the sentence: Type A coffee costs bill $5.70 per pound and type B coffee costs $4.65 per pound and the total cost is $943.50, we can formulated the equation 1 as:

5.70*A + 4.65*B=943.50

Because the total cost is the sum of the cost of every type of coffee.

Additionally, from the sentence: This month bill made 181 pounds of the blend, we can formulate the equation 2 as:

A + B = 181

Solving for B, we get:

B = 181 - A

Now, for find the value of A we need to replacing this last equation on equation 1, and solving for A as:

5.70*A + 4.65*B=943.50

5.70*A + 4.65*(181-A)=943.50

5.70*A + 841.65 - 4.65*A = 943.50

5.70*A - 4.65*A = 943.50 - 841.65

1.05*A = 101.85

A = 101.85/1.05

A = 97

So, this month, he use 97 pound of type A coffee.

5 0
3 years ago
Find the x and y intercepts algebraically.<br> X + 3y = -3
Mekhanik [1.2K]

Answer:

x=(-3,0)

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Step-by-step explanation:

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4 0
3 years ago
Find sec(2Arcsin (-1/3))
gavmur [86]
<span>Think of arcsin (-1/3) as an angle, and call it "theta."  The the original problem becomes "find sec [ 2 theta ]"
                                                       1                                    1
which is the same as     "find ------------------ " or --------------------------------------
                                                cos[2 theta]          (cos theta)^2 - (sin theta)^2

Recall that theta = the angle whose sine is -1/3.  Thus, sin theta = -1/3 and cos theta = 2sqrt(2) / 3.

So we now have: 

                   1
-------------------------------------------
   2 sqrt(2)                     -1
[------------------- ]^ 2 - [ ------- ]^2
           3                           3

which boils down to:

          1                   1
----------------- = ---------------- = 9/7 (answer)
   8         1               7/9
------ - --------
   9          9


</span>
4 0
4 years ago
Read 2 more answers
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