2 years ago

9. The temperature of a liquid that is increasing can be represented by the equation

Mathematics

1 answer:

34kurt2 years ago

6 0

Answer:

92°F

Step-by-step explanation:

in degrees Fahrenheit,

t=7

f(7)=64 + 4(7)

=92

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A ramp is used to load suitcases on an airplane. If the cargo door is 7 feet from the ground and the angle formed by the end of

melisa1 [442]

Answer: $16.56\ ft$

Step-by-step explanation:

You must draw a right triangle as the one attached, where "x" is the lenght in feet of the ramp.

You need to use the following Trigonometric Identity:

$sin\alpha=\frac{opposite}{hypotenuse}$

In this case you can identify that:

$\alpha =25\°\\\\opposite=7\\\\hypotenuse=x$

Now you must substitute these values into $sin\alpha=\frac{opposite}{hypotenuse}$ :

$sin(25\°)=\frac{7}{x}$

Finally, you must solve for "x" in order to find its value.

This is:

$sin(25\°)=\frac{7}{x}\\\\xsin(25\°)=7\\\\x=\frac{7}{sin(25\°)}\\\\x=16.56$

6 0

2 years ago

4. Are the lines parallel, perpendicular, or neither?

Lelu [443]

Answer:

Perpendicular

Step-by-step explanation:

Intersect over each other

4 0

2 years ago

A rectangular shaped garden has an area of 80 square feet. The length is 5 less than twice the width. What are the dimensions of

Gnom [1K]

Answer:

Width=28 1/3 Length=51 2/3

Step-by-step explanation:

1. Create an equation

x+(2x-5)=80

2. Solve

x+(2x-5)=80

3x-5=80

3x-5+5=80+5

3x/3=85/3

x=28 1/3

So, if x=28 1/3

85/3x2=170/3

56 2/3-5

So, Length=51 2/3

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2 years ago

Which of the following equations shows how the solution can be checked? Select the two correct answers. 3(1)+(-2)=1 1-(-2)=3 3(-

igor_vitrenko [27]

Answer:

the left side 1 does not equal to the right side 3 which means that the given statement is false.

Step-by-step explanation:

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2 years ago

Nick and Nia are doing chores. Nia has a piggybank with over 100 dollars from chores saving .Nick have a piggybank with over 20

SOVA2 [1]

Answer:

Nia did the chores the more

Step-by-step explanation:

100 is more than 20

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2 years ago