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3 years ago

I would only like help with these two questions can someone please help me? :)

Mathematics

1 answer:

omeli [17]3 years ago

3 0

x is the numbers across the bottom and Y is the numbers on the sides

coordinates are written (x,y)

so for 1. A is at (1,3) B is (0,5) you can find the rest

for number 2

(2,1) is D, (3,1) is F you can find the rest.

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Please help me?!<br> I need help!?

Olin [163]

Answer:

Area = 6.25 $\pi$ ft^2

Step-by-step explanation:

Area = $\pi \\$ $r^{2}$

The diameter is 5 feet. That makes the radius 2.5 feet

Area = $\pi \\$ $r^{2}$

Area = $\pi \\$ $2.5^{2}$

Area = 6.25 $\pi$ ft^2

6 0

2 years ago

What is the greatest decimal in hundredths that can be rounded to 14.5? What is the least

olga55 [171]

Answer:

14.45 and 14.54

Step-by-step explanation:

<u>Rule for rounding:</u>

Round up if number is between 5 and 9
Round down if number is between 0 and 4

<u>What numbers in hundredths can be rounded to 14.5?</u>

14.45 to 14.49

and

14.50 to 14.54

<u>From above we see that:</u>

The greatest decimal is 14.54
The least decimal is 14.45

7 0

2 years ago

How do I solve this equation? <br> (3a)/(2a+1)-(4)/(2a-1)=1

Gnoma [55]

now solve the quadretic eq. for the value of a
I hope it help to u

4 0

3 years ago

Y= 4/3 x -8<br>4x- 3y=24<br>what is the nature of the solution. to linear equations.

BARSIC [14]

Answer:

infinitely many solutions y=4/3x-8

Step-by-step explanation:

6 0

2 years ago

A hot air balloon is flying at an altitude of 800 feet. A passenger takes a picture of the top of a tree and estimates that the

nalin [4]

The height of the tree given the depression angle to the top and the base

is given by the tangent relationship of the two given angles.

Correct response:

The height of the tree is approximately <u>79.58 feet</u>

<h3 /><h3>Methods used for the calculation of the height of the tree</h3>

Given:

Altitude of the hot air balloon = 800 feet

Angle of depression to top of tree = 43°

Angle of depression to base of tree = 46°

Required:

Height of tree

Solution:

The horizontal distance of the balloon from the tree is given as follows;

$\displaystyle tan(46^{\circ}) = \frac{Altitude \ of \ balloon}{Horizontal \ distance \ from \ tree} = \mathbf{\frac{800 \, feet}{Horizontal \ distance \ from \ tree}}$

Therefore;

$\displaystyle Horizontal \ distance \ of \ balloon \ from \ tree = \frac{800 \ feet}{tan(46^{\circ})}$

$\displaystyle tan(43^{\circ}) = \mathbf{\frac{Height \ of \ balloon \ above \ tree}{\dfrac{800 \, feet}{tan(46^{\circ})} }}$

Therefore;

$\displaystyle Height \ of \ balloon \ above \ tree = tan(43^{\circ}) \times \frac{800 \, feet}{tan(46^{\circ})}$

Height of tree = Altitude of balloon - Height of balloon above tree

Therefore;

$\displaystyle Height \ of \ tree = 800 \, feet - tan(43^{\circ}) \times \frac{800 \, feet}{tan(46^{\circ})} \approx \underline{ 79.58 \, feet}$

Learn more about angle of elevation and depression here:

brainly.com/question/1978238

4 0

2 years ago