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3 years ago

What is the missing value in the image above? *

Mathematics

1 answer:

Ne4ueva [31]3 years ago

5 0

Answer:

Step-by-step explanation:

because there is nothing to subtract 8 from

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The figure is made up of a hemisphere and a cone.<br><br>What is the exact volume of the figure?

romanna [79]

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3 years ago

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mrs_skeptik [129]

Answer:

$60\sqrt{3 \\ }$

Step-by-step explanation:

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4 years ago

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Carole's car averages 13.2 mi/gal in city driving and 25.3 mi/gal in highway driving. If she drove a total of 396.0 mi on 19 gal

nika2105 [10]

Answer:

7 gallons were used for city driving.

Step-by-step explanation:

I am going to solve this question by a system of equations.

I am going to say that:

x is the number of gallons driven in the city.

y is the number of gallons driven in the highway.

19 gal of gas

This means that $x + y = 19$

Carole's car averages 13.2 mi/gal in city driving and 25.3 mi/gal in highway driving. If she drove a total of 396.0 mi.

This means that $13.2x + 25.3y = 396$

How many of the gallons (to the nearest gallon) were used for city driving?

This is x

From the first equation, i will have

$y = 19 - x$

Replacing in the second equation

$13.2x + 25.3y = 396$

$13.2x + 25.3(19 - x) = 396$

$13.2x - 25.3x = 396 - 480,7$

$12.1x = 84.7$

$x = \frac{84.7}{12.1}$

$x = 7$

7 gallons were used for city driving.

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3 years ago

Question 3 of 10<br> Which graph shows the solution to this system of inequalities?<br> y>2x-3

belka [17]

Step-by-step explanation:

the graph should start on (-3) on the y-axis from there go up 2 and over one and that should be your next point on the graph.

you didn't show the graphs but to figure out if the color goes on the top or bottom... do

point (0,0)

plug into equation y<2x-3

(0)<2(0)-3

0<-3 (false)

wouldn't include the point (0,0)

hope this helps

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3 years ago

How to calculate roots when the equation is non quadratic?

IrinaK [193]

Use the Rational Root Theorem, which gives all the possible values that are roots. From there, you can use either algebraic long division or synthetic division to figure out from the possible roots.

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