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FinnZ [79.3K]
3 years ago
6

left(1+7k\right)=-20" align="absmiddle" class="latex-formula">
Mathematics
2 answers:
Zarrin [17]3 years ago
7 0

Step-by-step explanation:

-2(1+7k)=-20

-2-14k=-20

-14k=-20+2

-14k=-18

k=-18/-14

k=1.2857

Tpy6a [65]3 years ago
3 0
The answer is there i modify k to x

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Please solve this problem.
just olya [345]

x=number of oranges.

y=number of bananas.

$5

we can suggest this system of equations:

x+y=12

0.5x+0.25y=5

We can solve this system of equations by substitution method.

x=12-y

0.5(12-y)+0.25y=5

6-0.5y+0.25y=5

-0.25y=5-6

-0.25y=-1

y=-1 /- 0.25=4

x=12-y

x=12-4=8

Answer:

<em>Tanya bought 8 oranges and 4 bananas.</em>

4 0
3 years ago
Read 2 more answers
The perimeter of a rectangular swimming pool is 446 centimeters the width of the pool is 7 centimeters less than the length what
NeX [460]
The length of the swimming pool is, 230 centimeters in length, and 216 centimeters in width. How I got my answer.

I first divided 446÷2=223, then I subtracted 223-7=216, that's width. Now I realise that there is 7 remaining, so I added 223+7=230, that's length!!

So to double check my work I added the width and length together, 216+230=446.

I hope this helps!
8 0
3 years ago
18÷3961528 <br>porfavor me dicen como hacerla
Step2247 [10]
(3*3*2)/(2*2*2*307*1613) (factores primos)
(3*3)/(2*2*307*1613) (simplificar)
9/1980764 (fracción más simple)
0.0000045437 (decimal)

¡Espero que esto ayude!
4 0
3 years ago
Can someone please help me on this?
pychu [463]
A jump discontinuity occurs when the limits as x approaches a number from the left and right are not equal. Basically, the graph "jumps" from one number to another at that x value. 

A point discontinuity occurs when limits as x approaches a number from the left and right are equal, but the actual value of f(x) at x is not equal to the limit. Basically, a point is missing and there is a "hole" in the graph at that x value. 

Looking at your graph, you can see that at x=0, the graph "jumps" from a value of 2 as the graph approaches x=0 from the left to a value of 1 as the graph approaches x=0 from the right. That means there is a jump discontinuity at x=0.

You can also see that there is a "hole" in the graph at x=-2 and x=8 as seen by the open circle. There is no hole at x=3 because the circle is filled in. That means there is a point discontinuity at x=-2 and x=8.

Your answer is B) jump discontinuity at x=0; point discontinuities at x=-2 and x=8.
6 0
4 years ago
What is the value of f(5) in the function below? f(x)=1/4 x 2^x
Assoli18 [71]
8
f(5) = 1/4*2^(5)
f(5) = 1/4*32
f(5) = 8
7 0
4 years ago
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