Mathematics High School

Which of the following expressions is not equivalent to (-2)(8 +6+-3)?
(-2)(8 + 6) + (-2)(-3)
(-2)(8 + 6) + (-3)
(-2)(8) + (-2)(6) + (-2)(-3)
(-2)(8) + (-2)(6 +-3)
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Answers

Answer 1

Answer:

[tex]b.)31\neq -22[/tex]

Step-by-step explanation:

Simplify each equation using PEMDAS:

Parentheses (x)

Exponents x²

Multiplication and Division, left to right × ÷

Addition and Subtraction, left to right - +

It is also important to follow PEMDAS when working within grouping symbols like parentheses.

Also, remember that two negatives make a positive, and when a negative and positive are multiplied, the result is always negative.

[tex](-2)(8+6+-3)\\\\-2*(8+6-3)\\\\-2*(14-3)\\\\-2*11\\\\-22[/tex]

Find which answer is not equal to -22.

a.) [tex](-2)(8+6)+(-2)(-3)\\\\-2*(8+6)-2*-3\\\\-2*14-2*-3\\\\-28-2*-3\\\\-28+6\\\\-22[/tex]

---------------------------------------------------

b.) [tex](-2)*(8+6)+(-3)\\\\-2*(8+6)-3\\\\-2*14-3\\\\-28-3\\\\-31[/tex]

---------------------------------------------------

c.) [tex](-2)(8)+(-2)(6)+(-2)(-3)\\\\-2*8-2*6-2*-3\\\\-16-2*6-2*-3\\\\-16-12-2*-3\\\\-16-12+6\\\\-28+6\\\\-22[/tex]

---------------------------------------------------

d.) [tex](-2)(8)+(-2)(6+-3)\\\\-2*8-2*(6-3)\\\\-2*8-2*3\\\\-16-2*3\\\\-16-6\\\\-22[/tex]

---------------------------------------------------

Option b is not equal to -22.

:Done

Related Questions

g(x)=17-2/3x;g(6)

please help me i only have 5 mins left

Answers

Answer:

13

Step-by-step explanation:

17 - 2/3(6)

17 - 4

13

sub in 6 for x to find g(6) instead of g(x)

Just 2 and 3 .....................................

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Answer:

i

Step-by-step explanation:

A gym all machine contains 23 green gum balls, 52 red gum balls, 34 blue gum balls, 61 yellow gum balls, and 30 pink gum balls.

What percent of the gum balls are red

Answers

Answer:

26%

Step-by-step explanation:

total gum balls 200

52/200 = x/100

52×100=5200

5200÷200=26

What is the product of 2 1/8and 4 1/3




Answers

Hey there :,)

The answer is D. 9 5/24

Answer:

D

Step-by-step explanation:

¿Cuáles son los términos de la expresión
algebraica 5p + 4?
A: 4
B: 5p
C: +

Answers

Answer:

A, B

Step-by-step explanation:

Los términos están separados por +, -, / o x.

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Answers

a little advice don’t put stuff to the end

Step-by-step explanation:

12:8

24:16

36:24

48:32

Girl hurry and submit it

Is the equation y +1 = 6(x + 5) in point-slope form? Justify your answer.
(select) the equation is equivalent to

Answers

yes the equation is in point slope form

Answer:

yes its is slope

Step-by-step explanation:

Horario is solving the equation -3/4 + 2/5 = 7/20x -1/2

Answers

Answer:

x = 3/7

Step-by-step explanation:

The answer for this question is
X= 3/7

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Answers

Answer:

B

Step-by-step explanation:

Find the distance between the two points in simplest radical form.
(-5, 8) (-3, 1)

Answers

Distance between two points formula is sqr (x2-x1)^2 + (y2-y1)^2
sqr (-3 + 5)^2 + (1 - 8) ^2
sqr (2)^2 + (-7)^2
sqr 4 + 49
sqr 53
The distance is 7.28
(It may be wrong so check it first)

A department store buys 400 shirts at a cost of $7,200 and sells them at a selling price of $20
each. Find the percent

Answers

Answer:

11%

Step-by-step explanation:

I think that's the answer just check first

3. If s varies directly as (r + 1) and s = 8, when r = 3, calculate the value ofr when s = 20.
(4marks)

Answers

Answer:

When s = 20, r = 9

Step-by-step explanation:

Given,

s is directly proportional to (r + 1)

s = k(r + 1)

(k is the constant of proportionality)

When s = 8,

8 = k(3 + 1)

8 = k(4)

8 = 4k

8/4 = k

2 = k

When s = 20,

20 = 2(r + 1)

20 = 2r + 2

20 - 2 = 2r

18 = 2r

18/2 = r

9 = r

Which of the following is a true statement?

Answers

Answer: T second one because I divided 108 divided by 9 and it equaled 12.

Step-by-step explanation:

I did not do the other steps but like source: Trust me.

Answer:

The answer is B

Step-by-step explanation:

108/9=12



If the ice cream truck sales 90 ice cream cones, how hot could you predict it was outside?
0 95
105
102
O
100

Answers

Answer:

It would most likely be in the 100's so maybe 105

1 1/9 x 3 5/10


Please educate me this basic knowledge because I’m so stupif

Answers

Make them all fractions
10/9 * 35/10 = 350/ 90
35/9 = 3.89
The answer would be 11/6 or 1.83 or 1 5/6

A leatherback sea turtles was swimming at 850 below sea level. He went 165 meters and then descendes 165 meters. Draw a number line to show the change in position of the sea turtles from depth it was swimming. What integer represents the sea turtles change in position?

Answers

Answer:

0

Step-by-step explanation:

Initial. Position = (- 850) below sea level

Upward movement = 165m

Deownward movement (descent) = (165m

Change in position : net change

Upward movement + downward movement

(165 + (-165)m = (165 - 165)m = 0

The mark obtained by Belij in an exam is 28 out of 40, express his obtained marks in percentage​

Answers

Marks

= 28/40

= 28/40 × 2.5/2.5

= 70/100

= 70%

Answer:

70percent

Step-by-step explanation:

28/40 x 100

0.7 x 100

=70 percent

Jenny is piloting an airplane at point A sees others at b and c. For the pilot of airplane b, calculate the angle between the lines of sight to the airplane at c and Jenny's airplane to the nearest tenth of a degree

Answers

Answer:

Step-by-step explanation: 5

The angle between the lines of sight to the airplane at c and Jenny's airplane to the nearest tenth of a degree is 25.1°.

What are trigonometric identities?

There are three commonly used trigonometric identities.

Sin x = 1/ cosec x

Cos x = 1/ sec x

Tan x = 1/ cot x or sin x / cos x

Cot x = cos x / sin x

We have,

From the figure,

Cosine theorem:

Cos 120° = (4.2² + 5.7² - BC²) / (2 x 4.2 x 5.7)

-0.5 = (17.64 + 32.49 - BC²) / 47.88

-23.94 = 50.13 - BC²

BC² = 50.13 + 23.94

BC = √(74.07)

BC = 8.6

Sine theorem:

BC / Sin ∠A = AC / Sin ∠B

8.6 / Sin ∠A = 4.2 / Sin ∠B

8.6 / 120 = 4.2 / Sin ∠B

Sin ∠B = (4.2 x 120) / 8.6

Sin ∠B = 58.60

∠B = 25.1°

Thus,

The angle is 25.1°.

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Solve the system using elimination (15 points)
2x+3y=9
x+5y=8

Answers

Answer: (3,1)

Step-by-step explanation:

2x + 3y = 9

(x + 5y = 8) -2

2x + 3y = 9

-2x - 10y = -16

      -7y = -7

         y = 1

2x + 3(1) = 9

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Answers

Step-by-step explanation:

1) 13.57

+2.93

With this, we subtract from the back Meaning we add starting from back to forward;

13.57

+2.93

16.50

We have that because when you add 7 and 3 you get 10 so we write the 0 there and add the remaining 1 to the 5 making it 6 and then 6 plus 9 will give you 15 then we write the 5 then we add the remaining 1 to the 3 making it 4 then we add the 4 to the 2 making it 6 after this there is no remainder so we just write the 1.

A full grown German Shepherd weighs about 35 kg on Earth and only 13.3 kg on Mars. How much would a German Shepherd puppy weigh on Earth if it was 1.9 kg on Mars

Answers

Answer:

Step-by-step explanation:5 pounds

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Answers

-3 is the answer to the question

PLZ ANSWER GUYS. The sum of 3 consecutive odd numbers is 39. What is the smallest of these numbers? Write an equation for for this problem.

Answers

Answer:

The three integers are

11, 13, and 15.

Step-by-step explanation:

. The sum of these is 39, so we can write:

x+(x+2)+(x+4)=39

Open the brackets and simplify.

x+x+2+x=+4=39

3x+6=39

Subtract 6 from each side.

3x=33

Divide both sides by 3.

x=11

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Answers

Answer:

x = 48 degrees

Step-by-step explanation:

Total internal angles:

180 degrees * 3

= 540 degrees

540-105-102-93

= 240

240 = 5x

x = 48

PLS GIVE BRAINLIEST

Answer:

2x = 96º

3x = 144º

Step-by-step explanation:

sum of all angles ina pentagon is 540, so:

2x+3x+105+93+102 = 540

5x+ 300 = 540

5x = 540-300

5x = 240

x = 240/5

x = 48

3x = 48.3

3x = 144

2x = 48.2

2x = 96

proof:

105+93+102+144+96 = 540

Peter creates balloon animals for different events. He has 644 balloons. He wants to use
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Answers

Answer:

He uses 23 balloons for each of the 28 events.

Step-by-step explanation:

Answer:

23

Step-by-step explanation:

I divided 644 by 28. There are 644 balloons and you want to split

(divide) into the same number of balloons with none left over. Look for those key words to tell you what type of math your doing. Hope this helps!

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Alice:_______
Maggie:_______
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Answers

Answer:

Step-by-step explanation:

PLEASE MARK BRAINLIEST

Sarah used 2.5 cups of cheese in a dish that serves 10 people. Many used 1.6 cups of cheese ina dish that serves 8 people. How much cheese is in one serving of Sarah's dish?

Answers

Answer:

Sarah has. 25 cups in each serving. Amy has. 2 cups in each serving. Sarah is. 05 more than Amy.

Step-by-step explanation:

Given that triangle ABC congruent to triangle DEC and m

Answers

Answer:

m∠ABC=67°

Step-by-step explanation:

In isosceles triangle ABC, AB=AC.If B=55, calculate A​

Answers

Answer: ∠A = 70°

because ABC is an  isosceles triangle and AB =  AC

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=> ∠A = 180-(∠B + ∠C) = 180° - 55°.2 = 70°

Step-by-step explanation:

sorry i can't help :(

Aden spent $10 on a mug and then sold it, making 20% profit, how much did he sell the mug for

Answers

Answer: $2

Step-by-step explanation: 20 percent of 10 is 2

Hope I did this right

The selling cost of the mug is the amount of $12.

What is the percentage?

The percentage is defined as a ratio expressed as a fraction of 100.

For example, If Misha obtained a score of 57% on her exam, that corresponds to 67 out of 100.

We have been given that Aden spent $10 on a mug and then sold it, making a 20% profit.

The original cost of the mug is $10.

The selling cost of the mug = original cost + 20% of the original cost

The selling cost of the mug = $10 + 20% of $10

The selling cost of the mug = 10 + (20/100)10

The selling cost of the mug = 10 + 0.20 × 10

The selling cost of the mug = 10 + 2

The selling cost of the mug = $12

Therefore, the selling cost of the mug is the amount of $12.

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