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2 years ago

I need help really bad please

Mathematics

1 answer:

Effectus [21]2 years ago

3 0

(18.6 + 9.4) x 1/2^2= 7 hope it helps!

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100 points & brainliest if you get it correct!

PolarNik [594]

Answer:

1. Brand 1 has a better unit price of (about) $2.14.

2. Brand 1 is the better deal.

$2.14/lb is the unit price of this brand.

Step-by-step explanation:

Question 1:

B1: $12.19 / 5.7 lbs = about $2.14

B2: $2.15

$2.14 < $2.15

4 0

3 years ago

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PLEASE HELP: Question above ☝☝☝

Xelga [282]

I'm actually pretty sure it's B

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4 years ago

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640, 160, 40, 10, ...

WARRIOR [948]

Answer:

Option 3 and 5 are correct

Step-by-step explanation:

We have given a geometric series 640,160,40,10....

Common ratio of geometric series is $r=\frac{a_2}{a_1}$

$r=\frac{160}{640}=\frac{1}{4}$

Here our common ratio is less than zero

It will show the graph of exponential decay

Hence, option 5 is correct.

The general term of geometric series is $a_n=a\cdotr^(n-1)$

Domain will be all natural numbers since, geometric series take only natural numbers.

Here, values of "n" is domain

Hence, option 3 is correct.

Range can be any positive real numbers not only natural number

Range is the value of $a_n$

Hence, option 4 is discarded.

Graph can not be linear of a geometric series being exponential

Hence, option 2 is discarded.

Option 1 is discarded because it is exponential decay function so it can not be exponential growth.

Therefore, Option 3 and 5 are correct.

4 0

3 years ago

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A 16-foot ladder is leaning against a building at a 71 degree angle to the ground.

Llana [10]

Answer:

The answer to your question is the letter D.

Step-by-step explanation:

Data

length = 16 ft

angle = 71°

Opposite side = ?

Process

1.- To answer this question use trigonometric functions.

The trigonometric function that relates the Opposite side and the hypotenuse is sine.

2.- Write the trigonometric function

sin Ф = Opposite side / hypotenuse

3.- Substitution and result

sin (71) = x / 16

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3 years ago

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Use the magnitudes (Richter scale) of the earthquakes listed in the data set below. Find the mean and median of this data set.

kvv77 [185]

Answer:

mean = 1.49

median = 1.53

Step-by-step explanation:

Using Excel, the procedure is the following

Insert data set in a sheet. In my case I used cells A1 to AX1
Compute mean with AVERAGE formula. In my case, AVERAGE(A1:AX1)
Compute median with MEDIAN formula. In my case, MEDIAN(A1:AX1)

7.0 is an outlier because all data points are below 2.91

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3 years ago

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