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3 years ago

Can someone please help me solve the following? 2-(-2)³+(-4/2)³

Mathematics

1 answer:

Tcecarenko [31]3 years ago

7 0

Answer:

BPEMDAS (brackets, parentheses, exponents, multiplication and division, addition and subtraction)- Left to right

Notes: Two negatives make a positive. When you have an odd exponent of an negative number, you get a negactive result.

2-(-8)+(-2)³

10-8

Hope this makes sense! :)

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18pi rounded to the nearest whole number

Bingel [31]

Answer:

56.52 but you have to round so its 57

Step-by-step explanation:

You have to multiply 18 and pi so we will use 3.14 for pi. 18 times 3.14 will give you 56.52 but you have to round it so it will be 57. If the number is greater than 5 you round up but if it is less you round down.

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Which expression is equivalent to 1/4 - 3/4x

Vadim26 [7]

Answer:

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Step-by-step explanation:

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3 years ago

One pound of swordfish costs as much as 1.5 pounds of salmon. Mrs. O pays $39 for 2 pounds of salmon and 3 pounds of swordfish.

Dimas [21]

Answer:

The ratio of the amount for swordfish to the amount of salmon is 6:4

Step-by-step explanation:

Given as :

The price for 1 pound of swordfish = The price of 1.5 pound of salmon

So, On this relation

The price for ( 1 × 2 ) pound of swordfish = The price of ( 1.5× 2 ) pound of salmon

i.e The price for 2 pound of swordfish = The price of 3 pound of salmon

Now According to question

Mrs. O pay the total money for 2 pounds of swordfish and 3 pound of salmon = $ 39

Let the money she pay for swordfish = 2 sw

And The money she pay for salmon = 3 sa

∵, The total money she pay for both = $ 39

I.e 2 sw + 3 sa = 39

As 2 sw = 3 sa

So, 3 sa + 3 sa = 39

Or, 6 sa = 39

or, sa = $\frac{39}{6}$ = $\frac{13}{2}$

∴ sw = $\frac{13}{2}$ × $\frac{3}{2}$

or, sw = $\frac{39}{4}$

Now, the ratio of the amount for swordfish to the amount of salmon = $\frac{\frac{39}{4}}{\frac{13}{2}}$

I.e The ratio = $\frac{6}{4}$

Hence The ratio of the amount for swordfish to the amount of salmon is 6:4

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3 years ago

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Rudiy27

Answer:

Step-by-step explanation:

you have a special triangle 30-60-90

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3 years ago

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nadezda [96]

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