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3 years ago

What is 1/2+(-3 1/2)=

Mathematics

1 answer:

Anestetic [448]3 years ago

4 0

Answer:

-3

Step-by-step explanation:

The equation could be written with decimals to make it easier:

0.5 + (-3.5) = ?

I am going to make an example

You owe your friend $3.50

That can be represented as this:

$-3.50

You pay your friend $0.50

Now you only owe your friend $3.00

Hope this helped :)

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I’ve been stuck can someone help

never [62]

Answer:

(a). $A_{x}$ = $\left[\begin{array}{cc}12&-4\\66&6\end{array}\right]$

Step-by-step explanation:

$\left \{ {{5x-4y=12} \atop {3x+6y=66}} \right.$

A = $\left[\begin{array}{cc}5&-4\\3&6\end{array}\right]$

$A_{x}$ = $\left[\begin{array}{cc}12&-4\\66&6\end{array}\right]$

$A_{y}$ = $\left[\begin{array}{cc}5&12\\3&66\end{array}\right]$

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3 years ago

Which expression is equivalent to sin(2x) cosx

Vsevolod [243]

Answer:

$2sin(x)cos^2(x)$

Step-by-step explanation:

To solve the problem, you must expand the trigonometric expression using the information given.

$sin(2x)cosx\\sin(2x)\\=2sin(x)\\=2sin(x)cos^2(x)$

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2 years ago

The attendance of your club increased by 30% from last year. There are 195 people in the club now. How many people were in the c

Basile [38]

130% of n is 195 where n is the number of people in the club last year

1.3n = 195
n=195÷1.3
n=150

6 0

3 years ago

Simplify the expression. 4 + 5\3^2 - 2^2 <br> A) -3 <br> B) -5 <br> C) 5 <br> D) 9\5

DedPeter [7]

Answer:

Step-by-step explanation:

$\frac{4+5}{3^{2}-2^{2}}=\frac{9}{9-4}\\\\=\frac{9}{5}$

4 0

3 years ago

MULTIPLE CHOICE QUESTION

just olya [345]

Answer:

(-4, 5)

Step-by-step explanation:

x will never change if reflected over it. but y will be negative. also what do you mean by y coordinate or x coordinate?

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3 years ago