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Diano4ka-milaya [45]
2 years ago
11

Can someone help me with this math equation 3/8[-8+16-(-2.5)]

Mathematics
1 answer:
Shkiper50 [21]2 years ago
7 0

Answer:

9.9375

Step-by-step explanation:

3/8[-8+16-(-2.5)]

=3/8(-8+16+2.5)

=3/8(26.5)

=9.9375

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PLEASE HELP!! The price of a pair of headphones is $39.99 before tax. Dalton bought the headphones for 30% off. He then paid 6%
Klio2033 [76]

Answer:

Step-by-step explanation:

A)

This is the 30% discount:

$39.99 x .30 = $11.997; The discount is $11.997

Price of headphones after the discount:

$39.99 - $11.997 = $27.99

Now we need to calculate the 6% sales tax on the discounted price.

$27.99 x .06 = $1.68 (rounded off)

Dalton paid $1.68 in sales tax on the discounted price.

B)

The total price Dalton paid for the headphones will be the discounted price plus the sales tax.

$27.99 + $1.68 = $29.67

Total price Dalton paid: $29.67

8 0
2 years ago
Simplify fully A) √9/25 B) √12/√3 C) √15/√3​
yaroslaw [1]

Step-by-step explanation:

A) 45

B) 6

C) 6.7082039326

8 0
3 years ago
Read 2 more answers
What is the next term in the following sequence? 12,6,3,...
stira [4]

This sequence keeps dividing by 2. So, you would divide 3 by 2 and you would get 1.5.

3 0
3 years ago
A 20-ounce bag of popcorn costs $2.80. If the unit price stays the same, how much does a 35-ounce bag of popcorn cost?
Wittaler [7]

Answer:

I think the answer is C

4 0
3 years ago
Cosx=4/5 what is sin2x cos2x and tan2x
earnstyle [38]

Answer:

-24/5

Step-by-step explanation:

The solution to the problem is as follows:

cscx < 0 means 1/sinx < 0, or sinx < 0.  

sinx = -3/5 because you're dealing with a 3-4-5 triangle, and we established

sinx is negative.  

sin2x = 2sinxcosx = 2*-3/5*4/5 = -24/25  

cos(2x) = cos^2(x) - sin^2(x) = 16/25 - 9/25 = 5/25 = 1/5  

tan2x = sin2x / cos2x = -24/5

4 0
3 years ago
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