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3 years ago

13

A square playground is covered with pebbles, except for two equal size triangular portions that have grass. How many square feet

do the pebbles cover? 7ft 14ft

1 answer:

notka56 [123]3 years ago

4 0

Answer:

The anser is 14 times 7 = 98ft

Step-by-step explanation:

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A ____________ is a graph that uses adjacent rectangles to display frequencies, or relative frequencies, of quantitative data va

ioda

The correct answer is: Histogram

Explanation:
<span>In simple terms histogram is a graph that consists of rectangles whose area is proportional to the frequency of a variable and whose width is equal to the class interval. It represents the distribution of the numerical data. Hence the correct answer is histogram as it conforms to the explanation about graph given in the question. </span>

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3 years ago

One in a thousand people are afflicted with the dreaded zigma disease. A pharmaceutical company develops a test for this disease

Anna [14]

Answer:

Option "A" is correct

Step-by-step explanation:

P(A) probability of event A is true

P(B) probability of event B is true

P(AB) probability of event AB is true

P(BA) probability of event BA is true

P(AB)= (BA) × (A)/(B)

4 0

3 years ago

During a musical an orchestra is playing. As the music plays, the volume changes in the beginning of the piece can be modeled by

IrinaK [193]

Answer:

<em>The sound level would be at 80 decibels at 1 or 7 number of measures played</em>

Step-by-step explanation:

<u>Equations with Absolute Values</u>

We have the function s to represent the sound level in decibels:

$s = 10|x - 4|+ 50$

Where x is the number of measures of the music played.

We are required to find the value of x that makes s=80 decibels. We have to find the equation:

$10|x - 4|+ 50 =80$

Subtracting 50:

$10|x - 4| =80-50$

$10|x - 4| =30$

Dividing by 10:

$|x - 4| =30/10=3$

$|x - 4| =3$

For the absolute value be equal to 3, its argument could be positive or negative:

$x-4=3$

Or

$x-4=-3$

This leads us to two solutions:

$x=3+4=7$

x=7

Or

$x-4=-3$

$x=4-3=1$

x=1

The sound level would be at 80 decibels at 1 or 7 number of measures played

4 0

4 years ago

Juan dimes received a single payment loan from his loan for $4,000. he agreed to repay the loan in 90 days at an interest rate o

AVprozaik [17]

9514 1404 393

Answer:

(c) $4,083.84

Step-by-step explanation:

The amount due is ...

A = P(1 +rt)

where P is the amount borrowed, r is the annual rate, and t is the number of years. For "exact interest", we use 365 days in a year, so the number of years is 90/365.

A = $4000(1 + 0.085×90/365) ≈ $4083.84

Juan's loan will have a value of $4083.84 at maturity.

4 0

3 years ago

Read 2 more answers

Help lol I'm asking way too much but pls help

pashok25 [27]

I think the equation would be -(1/2)

7 0

3 years ago