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Paha777 [63]
2 years ago
15

What is the value of the expression 30+(-6)? A -180 B -5 C 5 D 24

Mathematics
2 answers:
yKpoI14uk [10]2 years ago
6 0
24 I did it on a calculator
Evgesh-ka [11]2 years ago
4 0

Answer:

24

Step-by-step explanation:

from the question above,

30+(-6) =

when plus is multiplying minus it's minus

+ × - = -

30-6 = 24

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If their food and beverages costs$25.30 and there is an 8% meals tax, how much is the bill
Mashutka [201]
Hey there Unrazed90,

Answer : 

100% = $25.30
1% = $25.30 / 100
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8% = $0.253 x 8 
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Total = $25.30 + $2.024
         = $27.324
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Hope this helps :D

<em>~Natasha ♥</em>
8 0
3 years ago
2. Use the graph of y=-X2 - 2x + 3 to solve
natita [175]

Answer:

Solution is x=-3 and x =1, because that is zero od function y=-x^2-2x+3

8 0
3 years ago
Question 15 of 40
PilotLPTM [1.2K]

Answer:

Option C: n = 32; p^ = 0.4

Step-by-step explanation:

The normal curve can be used in this case if; np ≥ 10 or n(1 - p) ≥ 10

A) For n = 28 and p = 0.3;

np = 28 × 0.3 = 8.4 < 10

Thus, it can't be used.

B) For n = 28 and p = 0.9;

np = 28 × 0.9 = 25.2 > 10 Ok

n(1 - p) = 28(1 - 0.9) = 2.8 Not Ok

Thus, it can't be used

C) For n = 32 and p = 0.4

np = 32 × 0.4 = 12.8 > 10 Ok

n(1 - p) = 32(1 - 0.4) = 19.2 > 10 Ok

Thus, it can be used

D) For n = 32 and p = 0.2

np = 32 × 0.2 = 6.4 < 10 Not Ok

Thus it can't be used.

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3 years ago
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