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AnnyKZ [126]
3 years ago
5

Evaluate (y - 9) + (3 + x), when y = 15 and x = 5

Mathematics
2 answers:
cluponka [151]3 years ago
7 0

Answer:

14

Step-by-step explanation:

(y-9)+(3+x)

(15-9)+(3+5)

6+8

14

snow_lady [41]3 years ago
6 0

Hi ;-)

y=15 \ and \ x=5\\\\(y-9)+(3+x)=(15-9)+(3+5)=6+8=\boxed{14}

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Points A and B are located in a standard (x,y) coordinate plane. If A has coordinates (4,-4) and B has coordinates (0,8), what a
dimulka [17.4K]

the easiest way I find a midpoint of two points is the midpoint theorem, here it is:

\frac{x1+x2}{2} , \frac{y1+y2}{2}

For x and y plug in the two coordinates given, (4,-4) & (0,8)

so once you plug the numbers into the equation you would get:

(2,2)

7 0
3 years ago
Find the seventh term of the sequence 40, 0.4, 0.004, ....
natima [27]

Answer:

Answer: Option d.  4×10^{-11}

Step-by-step explanation:

In any sequence where ratio of the terms is given we always use the formula

A(n) = A(1)r^{n-1}

Here A(n) is the term n

A(1) is the first term

n= number of trms

and r = ration of the terms

Here the given sequence is 40,0.4,0.004........

So A(1) = 40

Ratio 'r' of second and first term is =0.4/40=1/100

We have to find 7th term so n=7

Now we put the values in the formula

A(7) = 40(1/100)^{7-1}

        =40(1/100)^{6}

        = 40/100^{6} =40/10^{12}

        = 40×10^{-12}

        = 4×10^{-11}



7 0
3 years ago
(Using Rates)
REY [17]

Answer:

He would need to know how many yards he wants to buy

Step-by-step explanation:

7 0
3 years ago
I need help understanding this hopefully you guys can help me with this! :D
jasenka [17]

Answer:

(-2, 1)  

(2, 5)  

Please solve the third question and answer in the comments and I will tell you if you are correct.

Step-by-step explanation:

1)Find the solution of the following system of equations; express the answer as a coordinate pair (x,y):

y = x + 3         subtract from the bottom  and solve for x

y = -2x - 3    

y - y = x - (-2x) + 3 - (-3)

  0  =  3x + 6

 -6  =  3x

-2  =  x

 y = x + 3     y = -2 + 3     y = 1      (-2, 1)

2)Find the solution of the following system of equations; express the

answer as a coordinate pair (x,y):

y = 2x + 1              subtract from the bottom  and solve for x

y = x/2 + 4

y-y = 2x - 1/2 x +1 - 4

 0  = x(2-1/2) - 3

 3  = 1.5x

 2  = x          y = 2x + 1      y = 2(2) + 1       y = 5       (2, 5)

3) Find the solution of the following system of equations; express the

answer as a coordinate pair (x,y):

y = -3x + 6          subtract from the bottom  and solve for x

y= -1/2x+1            

y-y = x(-3 - (-1/2)) + (6 - 1)       follow the examples above

6 0
3 years ago
Jackie had her hair done and gave her stylist a 20% tip. Her haircut and color was $120.
Ratling [72]

Answer:

She gave her stylist a 24 dollar tip.

;p

8 0
2 years ago
Read 2 more answers
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