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2 years ago

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Mathematics

2 answers:

dmitriy555 [2]2 years ago

8 0

1, 5, 25, 125

This is a geometric sequence since there is a common ratio between each term. In this case, multiplying the previous term in the sequence by

5 gives the next term. In other words, an=a1⋅rn−1. Geometric Sequence: r=5

This is the form of a geometric sequence.an=a1rn−1 Substitute in the values of a1=1 and r=5.an=(1)⋅(5)n−1 Multiply (5)n−1 by 1. an=5n−1

garik1379 [7]2 years ago

3 0

What happened in the 1920s that greatly lowered the price of cars (automobiles) and other consumer products?

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PLEASE HELP!!! Justin is running a race. He has completed 28 km, which happens to be 70% of the total race. How long is

tensa zangetsu [6.8K]

Answer is 40km
Explanation:
So in this question we can use a proportion
Since
28km is 70% we can write it equal to 70%
28=70

and since 100% is unknown we can write it equal to x
100=x

Then we put it in proportion form

28/x=70/100

Then cross multiply and divide

28(100)/70=x

Which would equal 40

8 0

2 years ago

the daily low temperature readings for a five-day period were as followed -13, -5 ,6, -7, 9 find the average low temperature for

vivado [14]

First add the numbers together:
-13+(-5),6,(-7),9=-10
Then divide that number by the total # of numbers, which is 5
-10÷5=-2

The average low temperature is -2.

...which is 6th grade stuff, so I am having a hard time believing, that you are in college and/or are having problems with this.

4 0

3 years ago

collen plans to print x pictures from her camara at a drug store. the expression $0.2x represents the cost of developing the pic

lutik1710 [3]

Answer:

$7.50

Step-by-step explanation:

<u>If she is not a member:</u>

to print 350 pictures, she will pay 0.2 * 350 = $70

<u>If she IS a member:</u>

to print 350 pictures, she will pay 0.15(350) + 10 = $62.5

THus, the amount she saves is 70 - 62.5 = $7.50

4 0

3 years ago

Read 2 more answers

Write the equation of a piecewise function with a jump discontinuity at x =3. Then, determine which step of the 3-step test for

seraphim [82]

Answer:

Here's a possible example:

Step-by-step explanation:

$f(x) =\begin{cases} x & \quad x < 3\\x+3 & \quad x \geq 3\\\end{cases}$

Each piece is linear, so the pieces are continuous by themselves.

We need consider only the point at which the pieces meet (x = 3).

$\displaystyle \lim_{x \longrightarrow 3^{-}} f(x) = \lim_{x \longrightarrow 3^{-}} x = 3\\\\\displaystyle \lim_{x \longrightarrow 3^{+}} f(x) = \lim_{x \longrightarrow 3^{+}} x+3 = 6\\\\f(3) = x + 3 = 6\\\\\displaystyle \lim_{x \longrightarrow 3^{-}} f(x) \neq f(3)$

The left-hand limit does not equal ƒ(x), so there is a jump discontinuity at x =3.

5 0

3 years ago

A different map has a scale of 1:50000

Deffense [45]

Answer:

8 Km

Step-by-step explanation:

16 x 50000 = 800,000 cm

800,000 cm = 8,000 m

8,000 m = 8 km

I hope this helps, if not sorry

6 0

2 years ago