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rosijanka [135]
3 years ago
12

The original price of the shirt is $20 per shirt is on sale for 20% discount how much money did the fire safe because of the dis

count
Mathematics
1 answer:
adell [148]3 years ago
6 0

Answer:

$4.

Step-by-step explanation:

20x20%= 4.

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1- Which relation is a function?
babymother [125]

Answer:


Step-by-step explanation:

1. bottom left


7 0
3 years ago
Megan is sitting in her car in a parking lot. The car next to her pulls forward. If Megan is looking only at the car next to her
Zina [86]

Answer:Backward

Step-by-step explanation:

If the car next to Megan is being Pulled Forward and Megan is seeing only the pulled car then her car appears to be moving backward.

This can be said by using the concept of relative velocity which states that the speed of the body with respect to the other is considered to be at rest.

Here Megan's car appears to move backward with respect to the car next to her due to the existence of relative velocity.

6 0
3 years ago
If sinA =3/5 and A+B =90 find cosB
-Dominant- [34]

A+B=90^o\to B=90^o-A\\\\\cos B=\cos(90^o-A)=\cos90^o\cos A+\sin90^o\sin A\\\\=\cos A+1\cdot\dfrac{3}{5}=0+\dfrac{3}{5}=\dfrac{3}{5}\\\\\boxed{\cos B=\dfrac{3}{5}}

Used:\\\\\cos(x+y)=\cos x\cos y+\sin x\sin y\\\\\cos90^o=0,\ sin90^o=1

Other method:

Look at the picture.

\sin\theta=\dfrac{opposite}{hypotenuse}\\\\\sin A=\dfrac{3}{5}\to opposite=3\ and\ hypotenuse=5

\cos\theta=\dfrac{adjacent}{hypotenuse}\\\\adjacent=3\ and\ hypotenuse=5\to\cos B=\dfrac{3}{5}

8 0
3 years ago
How to do this question plz ​
MrRissso [65]

Answer:

10:1

90 red counters

30 blue

1/3 of 90 =30

80% of 30 =24

90-30 =60 remaining red counters

30-24 =6 remaining blue counters

= 60:6 simplest form is 10:1

8 0
3 years ago
a small silver dollar pancake served at the restaurant has a circumference of 2*pi inches. A regular pancake has a circumference
Ludmilka [50]
Pi = 3.14

2*3.14 = 6.28
4*3.14 = 12.56

area = pi [ C/ (2pi)] ^2
C= circumference

area of small = 3.14 (6.28/6.28)^2 =3.14
area of regular = 3.14 (12.56/6.28)^2 = 12.56

12.56/3.14 = 4 

The regular pancake is 4 times the area.



4 0
3 years ago
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