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lubasha [3.4K]
4 years ago
5

Mathematics help please

Mathematics
1 answer:
Andrews [41]4 years ago
7 0
2. (-1-2^2•5)3^2


= -4509

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Help please i cant fail this
oksano4ka [1.4K]

Answer:

1

Step-by-step explanation:

5 0
3 years ago
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The population of a colony of mosquitoes obeys the law of uninhibited growth. If there are 1000 mosquitoes initially and there a
ad-work [718]

Answer: 3,917 days

Step-by-step explanation:

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3 years ago
Penelope made note of all the bicycles and cars she could see parked or locked on acertain city block. All the cars had exactly
lesantik [10]

Given:

The number of cycles is, <em>n</em> (s) = 7.

The number of wheels in the cycle is, <em>n </em>(sw) = 2.

The number of cars is, <em>n</em> (c) = 15.

The number of wheels in the car is, <em>n</em> (cw) = 4.

The obective is to find the total number of wheels.

The total number of wheels is,

\begin{gathered} T=n(sw)\cdot n(s)+n(cw)\cdot n(c) \\ =2\cdot7+4\cdot15 \\ =14+60 \\ =74\text{ whe}els \end{gathered}

Hence, there are 74 wheels in the block.

If there are <em>x</em> bicycles and <em>y </em>cars, the equatioin will be,

\begin{gathered} T=n(sw)\cdot x+n(ce)\cdot15 \\ T=2x+4x \end{gathered}

Hence, the number of wheels for x bicycles and y cars is 2x+4x.

6 0
2 years ago
Which expression is not equivalent to 8+(n-4) (8-4+n) 12+n n+4 (8+n)-4
Zielflug [23.3K]

The expression which is not equivalent to (8 + (n - 4)) is (12+n) and this can be determined by using the arithmetic operations.

Given :

Expression - 8 + (n - 4)

To simplify the given expression following steps can be used:

Step 1 - Rewrite the given expression.

= (n - 4) + 8

Step 2 - Now, remove the parenthesis in the given expression.

= n - 4 + 8

Step 3 - Now, write 8 as the addition of 4 and 4.

= n - 4 + 4 + 4

Step 4 - Subtract 4 by 4.

= n + 4

Therefore, the correct answer is (12+n).

Learn more about expression here: brainly.com/question/723406

#SPJ4

4 0
2 years ago
27=3w+6<br> Simplify your answer as much as possible
Delvig [45]
Answer
X=7

Steps:

Subtract 6
21=3w

Divide by 3
X=7
3 0
3 years ago
Read 2 more answers
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