MATHEMATICS HIGH SCHOOL

Which of the following statements is true?

Answers

Answer 1

Answer:

Answer:

option C is correct.

Step-by-step explanation:

Checking equation A

$(9x^3 + 12x) + (16x^3 -4x+1)= 24x^3 +16x-1\n9x^3+16x^3+12x-4x+1=24x^3+16x-1\n25x^3+8x+1\neq 24x^3+16x-1$

Checking equation B

$(3x+2x^2-4)-(x^2+x-5)=2x+x^2-9\n3x-x+2x^2-x^2-4+5=2x+x^2-9\n2x+x^2+1\neq 2x+x^2-9$

Checking equation C

$(10x^3+2x^2-11)+(9x^2+2x-2)=10x^3+11x^2+2x-13\n10x^3+2x^2+9x^2+2x-11-2=10x^3+11x^2+2x-13\n10x^3+11x^2+2x-13=10x^3+11x^2+2x-13$

Checking equation D

$(-7x^2+12)-(5-4x^2)=11x^2-17\n-7x^2+4x^2+12-5=11x^2-17\n-3x^2+7\neq 11x^2-17$

Hence, only option C is correct.

Related Questions

Help help help need to bring my f up in math
Shaniqua starts a bank account with a $120 deposit. By the end of 12 months, she hopes to have saved $900. She knows that she can save $30 per month from her paycheck, but can earn some extra money by tutoring on the weekend. How much extra per month does Shaniqua need to save in order to meet her goal? Select the equation that best represents this situation and solution.A.120 + 12(30 + x) = 900; $35 B.120 + 12(30 + x) = 900; $420 C.120 + 12(30) + x = 900; $35 D.120 + 12(30) + x = 900; $420
factor each expression: 4n^2-8n+3, 4p^2+7p+3, 6r^2-23r+20, 5z^2+19z-4, 2k^2-13k-24, 6t^2+7t-5, 3x^2+23x-36, 4w^2-5w-6, 4d^2-4d-35
In a certain country, the life expectancy of a woman born in 1995 was 80.2 years. Between 1995 and 2005, the life expectancy increased 0.4 year every 5 years.
If A = (0, 0) and B = (6, 3), what is the length of ? A.7.73 units B.6.24 units C.5.20 units D.6.71 units

4 hundreths equals how many thousandths?

Answers

.04 =.040
because u just add a 0at the hnd

Answer:

.04 .40 is the answer

Step-by-step explanation:

HELLLLPPPPP two questions: AND I WILL GIVE YA THE BRAINLIESTTTTTquestion one: Marcos mixes 434 oz of lemonade. he wants to filll the 14 cups he has with equal amounts of lemonade.
How many lemonade should he put in each cup?
Marcos should put_____ ounces in each cup.

Question 2: Kainoa collects trading cards. he has 1,005 baseball cards, 702 basketball cards, and 885 football cards. And he wants to put them all in albums. Each page holds 18 cards.
How many pages will he need to hold all of his cards?
Kainoa will need_____ pages.

Answers

Answer:

First one 31 oz

Second one 144 pages

Step-by-step explanation:

First one

Divide 434 by 14 (434/14) to get how many oz in a cup since its 14 oz per cup and he has 434 oz

Second one

Add up all the cards since it says "all of his cards" (2592) and divide it by 18 since each page holds 18 cards

Angle help! I got confused on this one idk why. (Angle adding)

Answers

You have to add both the angles in the beginning I messed up on the first try. It can get confusing.

(6x - 15) + (x + 8) = 168
7x -7 = 168
7x = 168 + 7
7x/7 = 175/7
x = 25

FJG = 6x - 15
FJG = 6(25) - 15
FJG = 150 - 15
FJG = 135

Which equation describes the same line as y – 3 = –1(x + 5)?A. y = –1x – 5
B. y = –1x – 2
C. y = –1x – 1
D. y = –1x + 8

Answers

Answer:

Option B is correct.

$y= -1x-2$

Step-by-step explanation:

The distributive property says that:

$a \cdot (b+c) = a\cdot b+ a\cdot c$

Given the equation of line:

$y-3 = -1(x+5)$

Apply the distributive property we have;

$y-3 = -1x-5$

Add 3 to both sides we have;

$y-3+3= -1x-5+3$

Simplify:

$y= -1x-2$

Therefore, an equation describes the same line as y – 3 = –1(x + 5) is, $y= -1x-2$

y – 3 = –1(x + 5)

y - 3 = -x - 5

y = -x - 5 + 3

y = -x - 2

answer is B. y = –1x – 2

Fill in the common equivalents.
1.) 662/3% = ?/?

Answers

3% is the same as 0.03
Therefore, 662/3% = 662/0.03

Stonehenge II in Hunt, Texas, is a scale model of the ancient construction in Wiltshire, England.The scale of the model to the original is 3 to 5 . the Alter Stone of the original construction is 4.9 meters tall. write and solve a porportion to find the height of the model of the Alter Stone

Answers

Let the height of the model of the Alter Stone be h.
Then, 3/5 = h/4.9
h = (3 x 4.9)/5 = 2.94

Therefore, the height of the Alter Stone is 2.94 meters

Other Questions

**For this question: you just have to come up w/ an equation.Jared has $3.85 in dimes and quarters. There are 25 coins in all. How many of each type of coin does he have? Variables are: d (for dimes) and q (for quarters)

-2(a-8)+6a=36 what's the value of a A=

(x-2)(x+1)=3x-4solve

Please solve for x::)