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mel-nik [20]
3 years ago
13

I would like some help,, no need to rush though! (20 points :])

Mathematics
1 answer:
Pepsi [2]3 years ago
5 0

1. A

2. B

3. A

hope its correct

You might be interested in
Negative nine is greater than or equal to the sum of two - fifths times a number and 9.
Bumek [7]

Answer:

W is either -22.5, or less than -22.5

Step-by-step explanation:

-9>=2/5 times w (I wasn't sure what you meant by "and" 9. Like 9w?)

W has to be a negative number, or else it would be greater than 9, which would make the equation wrong.

2/5 times -22 1/2=-9. So w can be -22 1/2 or -22.5

W can then be anything "lower" (on the left side) of -22.5.

W<-22.5

5 0
3 years ago
The angle of elevation to the top of a skyscraper is measured to be 2 degrees from a point on the ground 1 mile from the buildin
Alex

Answer:

0.034921 miles or 1843774 feet tall

Step-by-step explanation:

Using trigonometric functions we know that x=rcos(\theta) and y=rsin(\theta) where \theta=angle and r is the hypotenuse of the triangle.

First we will calculate the hypotenuse using the x equation, since we know x = 1 mile (distance from the building on the ground) we have:

x=rcos(\theta)\\\\1=rcos(2)\\\\r=\frac{1}{cos(2)} \approx. 1.0061mi

Now we will calculate the height of the building using the y equation and so:

y=rsin(\theta)\\\\y=\frac{1}{cos(2)} \times sin(2) = \frac{sin(2)}{cos(2)}=tan(2)=0.034921mi

The building is 0.034921 miles or approximately 184.3774 feet tall.

4 0
2 years ago
A pan of brownies is 7/10 full. Tyreese buys 2/5 of the brownies.
elixir [45]

Answer:

The answer to your question is below

Step-by-step explanation:

See the picture, please

In the first picture, we notice the initial amount of brownies (7/10), 7 brownies in a pan for 10 brownies.

After Tyreese bought 2/5   (7/10 - 2/5 = 3/10) there are 3 brownies left.

So in the picture, we notice only 3 brownies in a pan for 3 brownies.

6 0
3 years ago
V + 9 over 3= 8<br> what is v?
stira [4]
V= 15 steps are down below

6 0
2 years ago
Read 2 more answers
Points A, B, C, and D are collinear and positioned in that order. Solve for x then find the length of: AB, BC, and CD, if AB=x+5
fenix001 [56]

Step-by-step explanation:

we can solve this by Adding all points so you said that all are collinear points which means all points are in one line so this is solved as

= X+5+2X+10+4X=78

=7X+15=78. ....collecting like terms

=7x=78-15

=7x=63. divide both sides with 7

=x=9

So now All sides are solved

●AB=x+5

AB=9+5=14

●BC=2X+10=2(9)+10

BC=28

●CD=4X

CD=4(9)

CD=36

so AB+BC+CD=AD

14+28+36=78

True!!

Thanks in Advance

Nahom Wondale

4 0
3 years ago
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