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Oliga [24]
3 years ago
11

What is F(7) if (x) = 5x

Mathematics
2 answers:
leva [86]3 years ago
8 0
5*7 is 35

you are welcome
Law Incorporation [45]3 years ago
3 0
The answer is 35.
........
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What category does -1/3 belong in? (Select all that apply) Rational Number Rational Number Integer Number Integer Number Natural
Aleksandr [31]

Answer:

1/3 is a rational number

Step-by-step explanation:

4 0
3 years ago
Show work and Factor 4x^2+xy-18y^2
grigory [225]

Answer:

4x^2+xy-18y^2=(4x+9y)\,(x-2y)

Step-by-step explanation:

Let's examine the following general product of two binomials with variables x and y in different terms:

(ax+by)\,(cx+dy)= ac\,x^2+adxy+bcxy+bdy^2

so we want the following to happen:

a\,c = 4\\ad+bc=1\\bd--18

Notice as well that ad+bc =1 means that those two products must differ in just one unit so, one of them has to be negative, or three of them negative. Given that the product bd=-18, then we can consider the case in which one of this  (b or d) is the negative factor. So let's then assume that a\,\,and \,\,c are positive.

We can then try combinations for  a\,\,and \,\,c  such as:

a = 4;\,\,c=1\\a=2;\,\,c=2\\a=1;\,\,c=4

Just by selecting the first one (a=4;\,\,c=1)

we get that 4d_b=1\\b=-4d-1

and since

bd=-18\\(-4d-1)\,d=-18\\-4d^2-d=-18\\4d^2+d-18=0

This quadratic equation give as one of its solutions the integer: d = -2, and consequently,

d=-18/(-2)\\d=9

Now we have a good combination of parameters to render the factoring form of the original trinomial:

a=4; \,\,b=9;\,\,c=1;\,\,d=-2

which makes our factorization:

(4x+9y)\,(x-2y)=4x^2+xy-18y^2

6 0
3 years ago
A stray dog ate 25 of your muffins that was 5/6 of all of them with how many did you start?
Maru [420]

Answer:

30 = total muffins

Step-by-step explanation:

To determine how many muffins were eaten, we take the total muffins times the fraction that were eaten

eaten muffins = total muffins * fraction

25 = total muffins* 5/6

Multiply each side by 6/5

6/5*25 = total muffins *5/6*6/5

30 = total muffins

3 0
3 years ago
Tonya is 5 years older than Raul. Tonya is 16 years old. Solve the equation r+5=16 to find Raul's age.
AfilCa [17]

Answer:

he is 11 years old

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
NEED HELP PLEASE!!!!!!!!!!!!
belka [17]

Answer:

The answer is B. hope this helps

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3 years ago
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