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Leya [2.2K]
2 years ago
12

Trying to see who would be the first to answer an easy question- Right answers onlyyy

Mathematics
2 answers:
neonofarm [45]2 years ago
7 0
I think if you do 20 multiplied by 5 it would be $100
sashaice [31]2 years ago
7 0
Total change = 20 times $5 = $100
Total change = quantity times unit of change
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Solve 7x-6 > 8 and 3x + 4> 22 for x. Could you please help solve this.
Fiesta28 [93]
7x-6 > 8 \\ \\7x>8+6 \\ \\7x>14 \ \ :7 \\ \\x>2 \\ \\ \\3x+4>22 \\ \\3x>22-4\\ \\3x>18\ \ /:3\\ \\x>6
4 0
3 years ago
Read 2 more answers
If a and b are two angles in standard position in Quadrant I, find cos(a+b) for the given function values. sin a=8/17and cos b=1
n200080 [17]

Recall the sum identity for cosine:

cos(a + b) = cos(a) cos(b) - sin(a) sin(b)

so that

cos(a + b) = 12/13 cos(a) - 8/17 sin(b)

Since both a and b terminate in the first quadrant, we know that both cos(a) and sin(b) are positive. Then using the Pythagorean identity,

cos²(a) + sin²(a) = 1   ⇒   cos(a) = √(1 - sin²(a)) = 15/17

cos²(b) + sin²(b) = 1   ⇒   sin(b) = √(1 - cos²(b)) = 5/13

Then

cos(a + b) = 12/13 • 15/17 - 8/17 • 5/13 = 140/221

6 0
2 years ago
Evaluate (x + y)for x= -3 and y= 5.<br> A.-1/2<br> B.0<br> C.1<br> D.2
bazaltina [42]
It’s D
Proof:
(-3 + 5 = 2)
7 0
3 years ago
Read 2 more answers
A Cylinder has a base diameter of 4cm and a height of 2cm. What is it’s volume in cubic cm, to the nearest tenths place
s2008m [1.1K]

Answer: The answer is v=25.1 cm³

Step-by-step explanation:

b=4      

h= 2

r= 4/2     r =2 radius is half of the diameter

V=πr²h

v= π(2)²2

v= 25.132741228718

v=25.1 cm³

6 0
2 years ago
Joe wants to purchase
svp [43]

Answer:

64.23%

Step-by-step explanation:

Percent error

(699-250)/699  x 100 = 64.23

3 0
3 years ago
Read 2 more answers
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