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Colt1911 [192]
3 years ago
13

Evaluate 4 M-n if m= -7 and n = 2.

Mathematics
1 answer:
gregori [183]3 years ago
7 0

Answer:

-30

Step-by-step explanation:

I'm assuming the equation is 4m-n. If it is not please tell me.

If we know the values of m and n, we can just substitute inside the expression.

4(-7) - 2\\\\-28 - 2\\\\-30

Hope this helped!

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Find the measure of angle A associated with the following ratios and round to the nearest degree. CosA=0.2785 m∠A=
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Answer:

between 73 and 74

Step-by-step explanation:

m∠A=74

5 0
3 years ago
3.5 times a positive number is equal to the sum of the positive number and 0.5 . What is the positive number?
Serga [27]
Let x = the number

3.5x = x + 0.5
3.5x - x = 0.5
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x = 0.5/2.5
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6 0
3 years ago
In early 2015 the price of oil dropped and petrol became cheaper.
Stells [14]

Answer:

$2.052 more for a gallon

Step-by-step explanation:

1.09 for a litre

2.o9 for a gallon

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7 0
3 years ago
Convert the following measures of capacity.
nata0808 [166]

Answer:

a)35 cubic meters=35000 liters.

b)450 cubic centimeters= 450 milliliters.

c)19.74 cubic meters=19740 cubic decimeters.

d)926 cubic centimeters=0.926 cubic decimeters.

Step-by-step explanation:

a) since one cubic meter = 1000 liters,

              35 cubic meters=35 X 1000=35000 liters

b) Since one cubic centimeters=1 milliliter,

               450 cubic centimeters=450 milliliters.

c)Since one meter = 10 decimeters, one cubic meter=10³ decimeters.

Hence 19.74 cubic meters= 19.74X10^{3} =19740 cubic decimeters.

d) Since once centimeter=0.1 decimeter, 1 cubic centimeter=0.1³ decimeters.

Hence 926 cubic centimeters=926X0.1^{3}=0.926 cubic decimeters.

7 0
3 years ago
Read 2 more answers
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