All categories

3 years ago

Evaluate the expression. * 23 – (12 + 6) + 8 Please help

Mathematics

2 answers:

Svetllana [295]3 years ago

6 0

answer is 13

Step-by-step explanation:

Using the BODMAS rule,bracket of division or multiplication, addition or subtraction.

This applies the rule:

therefore,

23- (12+6)+8 ,calculate within bracket first

=23-(18)+8

now remove the bracket,by multiply by the -1

=23-18+8

the start calculate from the left to right

=23-10

=13

therefore the answer is 13

Afina-wow [57]3 years ago

5 0

Answer:

Step-by-step explanation:

23-(12+6)+8

23-18+8

31-18

You might be interested in

What is the amplitude of the graph of

Lera25 [3.4K]

It is 2 :)
Y=A sin(B(x+C))+D

Where A is equal to the amplitude.

Would appreciate brainliest answer :)

4 0

2 years ago

How many bottles of chocolate can you buy with $20 if one cost $4?<br> One step equation

Ulleksa [173]

You can buy 5 bottles because $4 times 5 equals $20. I hope this helps :)

6 0

3 years ago

Read 2 more answers

Please help with this

slava [35]

Answer:

D) x= $\frac{-2+-2\sqrt{7} }{3}$

Step-by-step explanation:

The quadratic formula is : $\frac{-b+-\sqrt{b^2-4ac} }{2a}$

A in terms of this question=9

B in terms of the question is 12

C in terms of the question is -24.

This question is an example of a quadratic equation. To work this out you may first need a calculator. The first step is to substitute the values of a,b and c into the formula. So once substituted the formula of $\frac{-b+-\sqrt{b^2-4ac} }{2a}$ becomes $\frac{(-12)+-\sqrt{(12)^2-4*(9)*(-24)} }{2(9)}$ . Although when written in a calculator there will not be a plus and minus button and so you would have to do this separately.

However when substituting the values it would be best practice to put them in brackets.

1) Substitute the values into the equation for +.

$\frac{(-12)+\sqrt{(12)^2-4*(9)*(-24)} }{2(9)}=\frac{-2+2\sqrt{7} }{3} /1.097167541$

2) Substitute the values into the equation for -.

$\frac{(-12)-\sqrt{(12)^2-4*(9)*(-24)} }{2(9)}=\frac{-2+2\sqrt{7} }{3} /-2.430500874$

8 0

3 years ago

Mary was asked to find the slope of the line 3x - 4y = 12. She says the answer is 3/4

Vinvika [58]

The correct answer is D. Choose two points on the graph and count the rise and the run between them. Graph D is the only one that also has a slope of 3/4 .

7 0

2 years ago

Vivian red 14 fewer pages than she was assigned to read she read 60 Pages write and solve an equation to find how many pages P V

ValentinkaMS [17]

Answer:

P = 74

Step-by-step explanation:

14 + 60 = 74

5 0

3 years ago