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GREYUIT [131]
3 years ago
9

Help! Due soon!!!!!!!!!

Mathematics
2 answers:
denis23 [38]3 years ago
8 0

Answer:

78.75

Step-by-step explanation:

450 is increased by 75%

450 + 450*75%

Change to decimal form

450 +450*.75

450+337.5

787.5

Now decrease by 90%

787.5-787.5*90%

Change to decimal form

787.5-787.5*.9

787.5-708.75

78.75

juin [17]3 years ago
5 0

Answer:

78.75

Step-by-step explanation:

450 + (450 x .75) = 787.5

787.5 - (787.5 x .90) = 78.75

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What's the following rotational symmetries of oranges regular hexagon​
Semmy [17]

Answer:

rotational symmetry of 60 degrees around the origin - yes

rotational symmetry of 120 degrees around the origin - yes

Step-by-step explanation:

A regular hexagon has 6 congruent angles

the the angles created on the line of symmetry are equal to 60 so the angle of rotational symmetry is 60 degrees.

The regular hexagon, like stated before, has 6 congruent angles so the order of symmetry is 6

Here is a visual from basic-matematics

6 0
2 years ago
Please prove the following trigonometric identity.<br><br>​
Brums [2.3K]

Step-by-step explanation:

solution:- from LHS 1-cos²x/sinx

∵ 1-cos²x = sin²x

∴ sin²x /sinx = sinx

from RHS tanx × cosx

∵tanx = sinx×cosx

∴ sinx/ cosx × cosx = sinx

Since, LHS = RHS proved ___

3 0
2 years ago
Sanam eats 5 almonds daily. How many almonds does she eat in 157 days?​
Ede4ka [16]

Answer:

785 almonds

Step-by-step explanation:

157 x 5 = 785

8 0
2 years ago
I need help, I don't know how to do it.
Sindrei [870]

Answer:

Step-by-step explanation:

to solve this problem we can use the Pythagorean theorem

UT and TL are the legs, while LU is the hypotenuse

We have to find LU so we can proceed like this

x^2 + (x+1)^2 = LU^2

x^2 + x^2 + 1 + 2x = LU^2

2x^2 + 2x + 1 = LU^2

LU = +/- \sqrt{2x^2+2x+1

we have to take only the positive value because a length can’t be negative.

2x^2 + 2x + 1 is positive for every value of x, so the final answer is

\sqrt{2x^2+2x+1}

5 0
2 years ago
In parallelogram ABCD, AB=18. Identify AD. PLEASE HELP ASAP!!
kakasveta [241]
If an is 18 and as is half its length it would be 9, AD = 9
8 0
3 years ago
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