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3 years ago

Help me plz I need help plz

Mathematics

1 answer:

timurjin [86]3 years ago

4 0

Answer:

Step-by-step explanation:

For example, say that the regular price was $2. 0.10 x 2 = 0.20. Using the info in option c, then she would subtract 0.20 from 2, which would give her the sale price. Hope this helps!

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20 PTS+BRAINLIEST:

Eduardwww [97]

Answer:

3 1/3.

Step-by-step explanation:

f(5/2) = -2/3 * 5/2 + 5

= -10/6 + 5

= 5 - 5/3

= 10/3

= 3 1/3.

4 0

3 years ago

Read 2 more answers

In 2014, Chile experienced an intense earthquake with a magnitude of 8.2 on the Richter scale. In 2010, Haiti also experienced a

serg [7]

Answer:

The intensity of the earthquake in Chile was about 16 times the intensity of the earthquake in Haiti.

Step-by-step explanation:

Given:

magnitude of earthquake in Chile = 8.2

magnitude of earthquake in Haiti = 7.0

To find:

Compare the intensities of the two earthquakes

Solution:

The magnitude R of earthquake is measured by R = log I

R is basically the magnitude on Richter scale

I is the intensity of shock wave

For Chile:

given magnitude R of earthquake in Chile = 8.2

R = log I

8.2 = log I

We know that:

$y = log a_{x}$ is equivalent to: $x = a^{y}$

$R = log I$

8.2 = log I becomes:

$I = 10^{8.2}$

So the intensity of the earthquake in Chile:

$I_{Chile} = 10^{8.2}$

For Haiti:

R = log I

7.0 = log I

We know that:

$y = log a_{x}$ is equivalent to: $x = a^{y}$

$R = log I$

7.0 = log I becomes:

$I = 10^{7.0}$

So the intensity of the earthquake in Haiti:

$I_{Haiti} = 10^{7}$

Compare the two intensities :

$\frac{I_{Chile} }{I_{Haiti} } }$

$= \frac{10^{8.2} }{10^{7} }$

= $10^{8.2-7.0}$

= $10^{1.2}$

= 15.848932

Round to the nearest whole number:

Hence former earthquake was 16 times as intense as the latter earthquake.

Another way to compare intensities:

Find the ratio of the intensities i.e. $\frac{I_{Chile} }{I_{Haiti} } }$

$log I_{Chile}$ - $log I_{Haiti}$ = 8.2 - 7.0

$log(\frac{I_{Chile} }{I_{Haiti} } })$ = 1.2

Convert this logarithmic equation to an exponential equation

$log(\frac{I_{Chile} }{I_{Haiti} } })$ = 1.2

$10^{1.2}$ = $\frac{I_{Chile} }{I_{Haiti} } }$

Hence

$\frac{I_{Chile} }{I_{Haiti} } }$ = 16

6 0

3 years ago

Kailey wants to buy a sandwich and as many oatmeal cookies as she can with $16. A sandwich costs $9 and an oatmeal cookie costs

TEA [102]

Answer:

Three cookies / or C

Step-by-step explanation:

You have 16 dollars, so you can nly buy one sandwich which leaves 7 dollars.

7/2 is three.5

your answer is 3

8 0

3 years ago

Read 2 more answers

i’m having some trouble with these three questions it would be a big help if someone could help me out :)

White raven [17]

A=negative 1,020,000,000,000=407 to the 9th power of ten+337 to the 9th power of ten+276 to the 9th power of ten
*power of ten are exponents(negative numbers)

b=10,000,000=4 to the 6 power of ten+4 to the 6th power of ten+2 to the 6th power of ten
*power of ten are exponents( numbers are negative)

c=1,019,990,000,000

6 0

3 years ago

1 Whatis the value ofthe expression y 1/2 +z)+6 ( 2 + when y= 2 and 7 = 3 ? 4

kogti [31]

2(1/2+3/4)+6=

17/2 or 8.5

The answer is C

6 0

3 years ago

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