Which expression is a SUM? A) 5(2 + 3) B) 8 x (6 + 3) C) 5(2) + 2(6 ÷ 3) D) (5 + 2) ÷ (2 + 3)

1 answer:

8 0

Consider the order of operations. When the last operation to be performed is addition or subtraction, the expression is a sum. The appropriate choice is
<span>C) 5(2) + 2(6 ÷ 3)

_____
This is evaluated as
10 + 2·2
10 + 4 . . . . . . . the last operation to be performed is addition</span>

You might be interested in

A gallup poll of 1236 adults showed that 12% of the respondents believe that it is bad luck to walk under a ladder. consider the

solmaris [256]

The probabillity can be found by using binomial probability formular considering that the event is discrete in nature and there are two possiple outcomes.

7 0

3 years ago

Who's taking geometry and can help me?

Mariulka [41]

I seen your comment on the other persons thing, it should be 60° :) correct me if i’m wrong!

5 0

3 years ago

Kayla spent half of her weekly allowance on clothes. To earn more money her parents let her clean the oven for $4. What is her w

marysya [2.9K]

In this question, the first information that we get is that Kayla spent half of her weekly allowance in clothes. On cleaning the oven Kayla gets $4. Finally Kayla is left with $12.
Let us assume that the weekly allowance of Kayla = x
Amount of allowance saved after buying clothes = x/2
Then we can go for the equation
x/2 + 4 = 12
x + (4 * 2) = 12 * 2
x + 8 = 24
x = 24 -8
= 16
So we can now see that the weekly allowance of Kayla is $16

5 0

3 years ago

SOMEONE HELP ME PLEASEEEEE

Sergeu [11.5K]

The answer is b if you do the equation right

5 0

3 years ago

Read 2 more answers

Solve 2cos ²y -siny -1=0 for 0° ≤y≤360°

natima [27]

$\displaystyle\bf\\2cos^2y -sin\,y -1=0~~~for~~0^o\leq y \leq360^o\\\\cos^2y=1-sin^2y\\\\2(1-sin^2y) -sin\,y -1=0\\\\2-2sin^2y-sin\,y-1=0\\\\-2sin^2y-sin\,y+2-1=0\\\\-2sin^2y-sin\,y+1=0~~~\Big|\times(-1)\\\\2sin^2y+sin\,y-1=0$

$\displaystyle\bf\\\boxed{\bf sin\,y=x}\\\\2x^2+x-1=0\\\\x_{12}=\frac{-b\pm\sqrt{b^2-4ac}}{2a}=\frac{-1\pm\sqrt{1-4\cdot2\cdot(-1)}}{2\cdot2}=\\\\=\frac{-1\pm\sqrt{1+8}}{4}=\frac{-1\pm\sqrt{9}}{4}=\frac{-1\pm3}{4}\\\\x_1=\frac{-1+3}{4}=\frac{2}{4}=\boxed{\bf\frac{1}{2}}\\\\x_2=\frac{-1-3}{4}=\frac{-4}{4}=\boxed{\bf-1}\\\\sin\,y=\frac{1}{2}\\\\\boxed{\bf y_1=\frac{\pi}{6}~~or~~(30^o)}\\\\\boxed{\bf y_2=\frac{5\pi}{6}~~or~~(150^o)}\\\\sin\,y=-1\\\\\boxed{\bf y_3=\frac{3\pi}{2}~~or~~(270^o)}$

5 0

3 years ago