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Yanka [14]
3 years ago
10

this is due in less the 30 minutes and this is my last question on the assignment please help and show work. will give brainlies

t

Mathematics
2 answers:
Oduvanchick [21]3 years ago
5 0

Answer:

22,100

Step-by-step explanation:

valina [46]3 years ago
5 0

Answer:

the answer in 18,300

Step-by-step explanation:

2 x 3 5/8= 7 1/4

7 1/4 +1 9/10= 9 3/20

9 3/20 / 2= 18 3/10

18 3/10 x 1000=18,300

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What are the factors of 2x + 3x - 54? Select two options
tiny-mole [99]

Answer:

The answer: The factors are (2x-9) and (x+6).

The Problem:

Factor 2x^2+3x-54

Step-by-step explanation:

So I'm going to do trial factors using the choices to aid me.

Factored form for this problem if it exist will be in the form:

(mx+n)(kx+p).

In general this is what it would look like if we factored any quadratic in terms of x (given the quadratic is not prime but technically you could factor even over the complex numbers).

Let's look at:

(mx+n)(kx+p)

We want to choose k \text{ and } m such that when you multiply them you get 2.  Well those would have to be 2 and 1.

(2x+n)(x+p)

we want to choose n \text{ and } p such that when you multiply them you get -54. Based on the choices we want to get with -9 and 6, or 9 and -6. We don't know the order we want to choose it in either.

For example which of these would work:

(2x-6)(x+9)

(2x+6)(x-9)

(2x-9)(x+6)

(2x+9)(x-6)

We are going to consider only the outer and inner of FOIL since we already know the first times the first is 2x^2 and the last times the last is -54.

Let's test the first one:

(2x-6)(x+9)

Outer:  2x(9)=18x

Inner: -6(x)=-6x

------------------------ADD!

18x-6x=12x

The first choice did not give us the middle term 3x.

Trying the second one would give us the opposite since they are in the same form as previous just the + and - are switched.

Let's look at the third one:

(2x-9)(x+6)

Outer: 2x(6)=12x

Inner: -9(x)=-9x

--------------------------ADD!

12x-9x=3x

This is the winner.

The answer: The factors are (2x-9) and (x+6).

7 0
3 years ago
Read 2 more answers
[Functions] I just need yes's and no's.......a lot of them, functions just really don't click with me and I don't understand why
Semenov [28]

Answer:

uh-

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
18・1
Tems11 [23]

Answer:

My guess would be

C. multiplicative identity property

4 0
3 years ago
How does sin 30 compare to sin -30
Kisachek [45]

Answer:

c. sin 30 is positive and sin -30 is negative

Step-by-step explanation:

Picture the unit circle (which is attached). <u>Sine is like the y-coordinate.</u> And -30 and 30 on the unit circle both form equally-sized triangles, but -30 is underneath the x-axis, so it has a <u>negative y-coordinate.</u> 30 is above the x-axis, so it has a <u>positive y-coordinate.</u>

6 0
3 years ago
5/7 x 14/20<br><br> Snannan
bearhunter [10]

Answer:

\frac{1}{2}  \: or \: 0.5

Step-by-step explanation:

\frac{5}{7}  \times  \frac{14}{20}  =  \frac{5 \times 14}{7 \times 20}

It can be also written as -

=  >  \frac{5 \times 14}{20 \times 7}  =  \frac{5}{20}  \times  \frac{14}{7}  =  \frac{1}{4}  \times 2 =  \frac{1}{2}

7 0
3 years ago
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