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3 years ago

After putting 5 gallons of gas into your car, the

Mathematics

2 answers:

wariber [46]3 years ago

7 0

Answer:

There were 8 gallons before you filled it up.

Step-by-step explanation:

Take the full tank and subtract the amount added to find out the amount in the tank before the fill up

13 - 5 = 8

There were 8 gallons before you filled it up.

Shkiper50 [21]3 years ago

5 0

Answer:

8 gallons

Step-by-step explanation:

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Given the figure below, find the values of x and z .

eimsori [14]

Z and 96 are vertical angles so they equal each other. The other angle makes a straight line with the 96 degree angle so subtract from 180 to find the measure of that angle is 84. Set the expression equal to 84 and solve.

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3 years ago

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anyanavicka [17]

Answer:

B. r=7.5

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2 years ago

The altitude of a triangle is increasing at a rate of 1 cm/min while the area of the triangle is increasing at a rate of 2 cm2/m

Mnenie [13.5K]

Answer:

The base is reducing at a rate of 3.4cm per min.

Step-by-step explanation:

Let The Height of the Triangle, h

Area of the triangle = A

Area of a Triangle, $A= \frac{1}{2}bh$

When $A=190 cm^2, h=10cm$

$190= \frac{1}{2}*b*10\\b=38cm$

$\frac{dA}{dt}=\frac{1}{2}h\frac{db}{dt}+ \frac{1}{2}b\frac{dh}{dt}\\\frac{dh}{dt}=1 cm/min, \frac{dA}{dt}=2cm^2/min,$

$2=\frac{1}{2}*10*\frac{db}{dt}+ \frac{1}{2}*38*1\\2=5\frac{db}{dt}+19\\2-19=5\frac{db}{dt}\\-17=5\frac{db}{dt}\\\frac{db}{dt}=-\frac{17}{5} =-3.4 cm/min$

The base is reducing at a rate of 3.4cm per min.

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3 years ago

Use the function rule to complete the table<br> -10x + y = 4

alexgriva [62]

Plug in the given numbers (x) to the equation. For example, let's take the first value it gives us. -10(-2) +y=4 20+y=4 y=-16 Then you would put that on the table, and plug in the next value(s). Hope this helped!

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3 years ago

Read 2 more answers

Please help with this!!! 25 points and i'll mark you brainliest!!! Show how you got answer!!!

HACTEHA [7]

Answer:

17.9°

Step-by-step explanation:

From trigonometry:

Opposite = 14

Adjacent = x

theta = 38°

hence;

tan theta = opposite/ adjacent

tan38° = 14/x

x = 14/tan38°

x = 17.9°

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3 years ago