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Gnoma [55]
2 years ago
15

THIS IS NOT NEEDED FOR ANSWERING JUST TO GET THREE NEEDED QUESTIONS I NEED ANSWERED TODAY OUT INTO BRAINLY... AND ID EXPECT NO L

INKS IN THIS OR IN THESE QUESTIONS... BUT I WILL PUT THE THREE QUESTIONS AS PHOTOS IN HERE IF YOU WANT TO ANSWER THEM HERE INSTEAD AS PHOTOS... IF YOU CANT SEE THEM HERE THEN GO INTO THE BRAINLY QUESTION LINKS
other Brainly questions i have today that also need answering:
brainly.com/question/22829066

brainly.com/question/22828757

brainly.com/question/22829297

Ω Entity001 And Project Omega Ω

EXAMPLE OF WHAT NOT TO TRUST BELOW:
Kyuubivi
Beginner
1 answer
6 people helped
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Mathematics
2 answers:
Ratling [72]2 years ago
8 0

Answer:

huh i am very confused

Step-by-step explanation:

Zielflug [23.3K]2 years ago
5 0
<h2>ok got it :D</h2><h2 /><h2>Have a great day!!</h2><h2></h2>

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--<br> Choose the correct simplification of the expression -5x2(4x – 6x2 – 3).
natali 33 [55]

\huge \bf༆ Answer ༄

Let's simply ~

{ \qquad{ \sf{ \dashrightarrow}}}  \:  \: \sf \: - 5 {x}^{2} (4x - 6 {x}^{2}  - 3)

{ \qquad{ \sf{ \dashrightarrow}}}  \:  \: \sf \:( - 5x {}^{2}  \times 4x) - ( - 5 {x}^{2}  \times 6 {x}^{2} ) - ( - 5 {x}^{2}  \times  3)

{ \qquad{ \sf{ \dashrightarrow}}}  \:  \: \sf \: - 20 {x}^{3}    - ( - 30 {x}^{4} ) - ( - 15 {x}^{2} )

{ \qquad{ \sf{ \dashrightarrow}}}  \:  \: \sf \: - 20 {x}^{3}  + 30 {x}^{4}  + 15 {x}^{2}

{ \qquad{ \sf{ \dashrightarrow}}}  \:  \: \sf \:30 {x}^{4}  - 20 {x}^{3}  + 15 {x}^{2}

5 0
2 years ago
a housepainter mixed 5 gallons of blue paint with every 9 gallons of yellow paint in order to make a green paint . which ratio o
Sedbober [7]
The ratio for this question is 5:9.

7 0
3 years ago
Read 2 more answers
A balloon rises at the rate of 10 ft/sec from a point on the ground 100 feet from an observer. Find the rate of change of the an
lubasha [3.4K]

The rate of change of the angle of elevation of the balloon from the observer when the balloon is 100 feet above the ground is  1/20 degree/sec.

<h3>What is angle of elevation?</h3>

It is described as a relationship between an oblique line from the observer's eye to an item above his eye and the horizontal plane. This angle eventually develops above the surface. The angle of elevation is made in such a way that it is above the observer's eye, as the name suggests.

Calculation for the rate of change of angle of elevation-

According to the question,

A balloon rises at the rate of 10 ft/sec from a point on the ground 100 feet from an observer.

The balloon is 100 feet above the ground.

Let the height of the balloon be 'h' ft.

Then tanØ = h/100

h = 100tanØ

Differentiate the above equation with respect to time.

dh/dt = 100 sec² Ø (dØ/dt)

We know dh/dt = 10 ft/sec.

when h = 100

tanØ = 100/100 = 1/1

tanØ = Perpendicular/Base

On comparing above two equations,

Perpendicular = 1; Base = 1.

By Pythagoras the hypotenuse is,

H² = P² + B²

    = 1² + 1²

    = 2

H = √2

Now, calculate the value of cosØ.

cosØ = B/H = 1/√2

Squaring both side

cos² Ø = 1/2

sec² Ø = 1/cos² Ø

sec² Ø = 2

The main equation was,

dh/dt = 100 sec² Ø (dØ/dt)

Substitute the values,

dØ/dt = (dh/dt )/100 sec² Ø

         = (10)/(100×2)

dØ/dt = 1/20 degree/sec.

Therefore, the rate of change of the angle of elevation of the balloon from the observer is  1/20 degree/sec.

To know more about the angle of elevation, here

brainly.com/question/9817377

#SPJ4

8 0
1 year ago
Gomez found the mass of 3 rocks for a science project the first rock had a mass of 19.28 grams the second rock has a mass of 25.
Stella [2.4K]
This question simply asks for 
46.3-(19.28+25.3) which equals
46.3-44.58&#10;&#10;&#10;
to get our final answer, 
1.72

7 0
3 years ago
Your cousin gave you $2.98 which to buy a present this covered 2/7 of the cost how much did the present cost
Nataliya [291]

Answer:

the present would cost $22.20

8 0
2 years ago
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