Mathematics High School

Cómo simplifico [tex]x^{2} -2[/tex] ???

Answers

Answer 1

Answer:

x = -1

Step-by-step explanation:

you try to get x by itself in this case I devided x/2 and -2/2

Related Questions

Factorise the following 12xy(9x^2-16y^2)÷4xy(3x+4y)

Answers

12x 9 = 108 x ^3 y
108x^3y - 192xy^3 / 12x ^2y + 16xy^2
108/12 =
9x ( y cancel out )
12y
9x + 12y
3( 3x + 4y)

Margot is sewing a ribbon on a seam along the perimeter of a square pillow. The side length of the pillow is 2x2+1 inches. She plans to make a similar pillow, including the ribbon, whose side length is 4x−7 inches. What expression can be used for the length of ribbon that she needs for both pillows, and what is the length if x = 3.5?

2x2+4x−6; 22.0 inches
2x2+4x−6; 32.5 inches
4(2x2+4x−6;) 88.0 inches
4(2x2+4x−6;) 130.0 inches

Answers

Answer:

4(2x2+4x−6;) 130.0 inches

Step-by-step explanation:

The expression that can be used for the total length of ribbon she needs for both square pillows and the length if x = 3.5 is:

D. 4(2x² + 4x - 6); 130.0 inches.

What is the Perimeter of a Square?

Perimeter of a square = 4(s).

s = side length of the square.

Perimeter of the first pillow = 4(s) = 4(2x² + 1) inches.

Perimeter of the similar pillow = 4(s) = 4(4x - 7) inches.

Expression for the total length of ribbon she will need for both square pillows is:

4(2x² + 1) + 4(4x - 7)

4(2x² + 1 + 4x - 7)

4(2x² + 4x - 6)

If x = 3.5, plug in the value of x into 4(2x² + 4x - 6) to find the total length of the ribbon she needs:

4(2(3.5)² + 4(3.5) - 6)

4(24.5 + 14 - 6)

130.0 inches.

Thus, the expression that can be used for the total length of ribbon she needs for both square pillows and the length if x = 3.5 is:

D. 4(2x² + 4x - 6); 130.0 inches.

Learn more about perimeter of square on:

https://brainly.com/question/25092270

~.❤~Please Answer~❤.~

Answers

Answer:

a,b

Step-by-step explanation:

Read and analyze the problem below. Was the problem solved correctly? If
not, explain the error and answer it correctly in the box below.
Solve:
2x - 8+ 3x + 2 = 4x+10+ 3x - 6
Student Work:
2x - 8+ 3x + 2 = 4x+10+ 3x - 6
5x - 6 = 7x +16
- 5x -5x
-6 = 2x +16
-16 -16
-22 = 2x
2 2
-11= x

Answers

Answer:

no(double check my math!!)

Step-by-step explanation:

on the second step it should be 4 not 16 bc 10-6=4

2x-8+3x+2=4x+10+3x-6

5x-6=7x+4

-6=2x+4

-10=2x

-5=x

1. What is the degree of the polynomial?
t3 + 5t2 – 3t + 2

Answers

I’m assuming that the first number is supposed to be raised by the power of 3. The degree of this polynomial would be 3 then if this is the case.

Answer:

degree 3

Step-by-step explanation:

The degree of a polynomial is determined by the largest exponent of the variable within the polynomial.

Given

t³ + 5t² - 3t + 2

The leading term t³ has exponent 3 , then

The polynomial is degree 3

Please help me with this homework

Answers

7) a = 48
8) b = 30
9) c = 188
10) d = 18
11) x = 32
12) y = 40


Give me brainlist!!


You Welcome :)

Please help me with this homework

Answers

Answer:

7. A=48

8.B=30

9. C=188

10. D=18

11. X=32

12.Y=40

Step-by-step explanation:

Answer:

7. [tex]a=48[/tex]

8. [tex]b=30[/tex]

9. [tex]c = 188[/tex]

10. [tex]d = 18[/tex]

11. [tex]x = 32[/tex]

12. [tex]y = 40[/tex]

Step-by-step explanation:

Let's do something called cross-multiplication. It's exactly what it sounds like, we multiply the top number with the denominator across the multiplication.

[tex]\frac{33}{a} = \frac{11}{16}[/tex]

[tex]11 a = 33(16)[/tex]

[tex]11a = 528[/tex]

Now we can simplify.

[tex]a=48[/tex]

So we got the answer for the first one. We can keep doing the same thing for the others.

Help me with this pls

Answers

Answer:

A. 3x+80+2x=180

Step-by-step explanation:

a straight line is 180 degrees

help me plzzzzzzzzzzzzzzzzzzzz

Answers

Answer:

B

Step-by-step explanation:

also can i have brainly

graph x < -4 as an inequality.

Answers

Answer:

Graph{x<-4[10,10-5,5]}

The line will be a dashed line because the inequality operator does not contains an" or equal to"clouse

7x + 5y = -25
I need help figuring out what the slope-intercept for is for the equation

Answers

Answer:

Slope: -1.4

Y-Intercept: -5

Step-by-step explanation:

Y = MX+B

Question: 7x + 5y = -25

Simplified: y = -1.4x - 5

M is Slope

B is Y-Intercept

The perimeter of the rectangle below is 74 units. Find the length of side xy.
Write your answer without variables.
Y
3x + 3 x
XY =
Х
5
?
4x - 1
V
w
I Don't Know
Submit
on All Rights Reserved
Terms of Use Privacy

Answers

Bsnndnsndndnndndndndndndndn

Solve.... 4n- 9= 2 (5+ 2n)

Answers

Answer:

Step-by-step explanation:

Here you go mate

Use PEMDAS

Parenthesis,Exponent,Multiplication,Division,Addition,Subtraction

Step 1

4n-9=2(5+2n)  Equation/Question

Step 2

4n-9=2(5+2n)  Remove parenthesis

4n-9=4n+10

Step 3

4n-9=4n+10  Subtract 4n to sides

-9=10

Step 4

-9=10  Add 9

0=19

Answer

No solutions

Hope this helps

Order these numbers from least to greatest.
2.4, 2.25, 2.2582, 2.025
2.4
2.25
2.2582
2.025
<
.
<

Answers

Answer:

2.025, 2.25, 2.2582, 2.4

Step-by-step explanation:

20% of x is 11. What is x?

Answers

Answer:

55

Step-by-step explanation:

20% is the same as 1/5, so we can multiply 11 by 5:

11*5=55

PLEASEEE HELP ASAP WILL GIVE YALL BRAINLEAST Which of the following

statements is true about the values of the coordinate points in a figure when the figure is reflected over the y-axis?


A.Only the x-values remain the same.
B.Only the y-values remain the same.
C.Both the x- and y-values remain the same.
D.Both the x- and y-values change.

Answers

Answer:

a

Step-by-step explanation:

Answer:

b.) the y values stay the same

Step-by-step explanation:

Show work!!!!!!!!!!!!!!

Answers

Answer:

147

Step-by-step explanation:

you just add both angles

What are the slope and y-intercept of the graph of this equation?
y = 2x - 5

Answers

Answer:

In this equation, y = 2x - 5, it is already in that form and so the cumber in front of the x is the slope (2) and the constant number is the y-intercept (-5) - it's negative because of the minus sign in front of the number. So, the slope is 2 and the y-intercept is -5.

Step-by-step explanation:

hope this helps! can i pls get brainliest?

help

what is the least perfect squared number that is divisible divisible by

12

16

20

24



NOTE : the first one who answers gets branilast ​

Answers


The lowest perfect squared number that is divisible by 12,16,20,24 is 3600
1. Let's find the L.C.M
12 = 2×2×3
16 = 2×2×2×2
20 = 2×2×5
24 = 2×2×2×3
The L.C.M is 2×2×2×2×3×5 = 240
2. Now, the L.C.M 240 is not a perfect square.
3.Therefore to obtain a lowest perfect square the given number should be should have another 3 and 5 as the factor.
4. So, multiplying 240 by 15 we, get 3600 which is a perfect square and it can be divided by 12,16,20,24.
5. 3600 is the square of 60.
6.Therefore, the lowest perfect square that is divisible by 12,16,20,24 is 3600

last week a certain brand of bottled water cost $1.25 for a 16 oz bottle this week the water is on sale for $1 for a 16-oz bottle what is the percent increase in the price of this bottled water

A. 16 percent
B. 20 percent
C. 13 percent
D. 25 percent​

Answers

Answer:

D

Step-by-step explanation:

what is the value of a?

Answers

Answer: In right triangle XZW, the height WY is the geometric mean of segments ZY and XY.

Hence,

4^2=3 x a,

a=16/3 un.

Dan earns 332 over the course of a five day week how much is that per day

Answers

Answer:

$66.40 a day

Step-by-step explanation:

divide 332 by 5

Answer:

2324

Step-by-step explanation:

Times 332 by 7

Which table has a constant of proportionality between yyy and xxx of 444?
Choose 1 answer:

Answers

Answer:

you did not provide a table therefore no one can answer this

Step-by-step explanation:

Mark Me Brainliest Please

Answer:

its a

Step-by-step explanation:

:) hope this helped!

Graph the line with slope 3 and y-intercept -3

Answers

Make the mine cross -3 on your y axis and then go up 3 and move 1 to the right
Y = 3x - 3
The number before x is the slope and the number after is where it crosses the y axis aka the y int

URGENT. Science+Algebra (MULTIPLE CHOICE)

Answers

Answer:

A and c I hope I helped :P

Step-by-step explanation:

What is
33 x 45 x 87 -100 ???

Answers

Answer:

129095

Step-by-step explanation:

Answer:

129,095

Step-by-step explanation:

33 x 45 x 87 -100 = 129,095

I hope this helps!

What is the total number

Answers

Answer:

What is the total number

Step-by-step explanation:

Give me an equivalent 14/20

Answers

0.7 there you go your welcome
Hope this helped
0.7 (decimal form) 70/100 (fraction form)

What is the empirical formula of a compound that is 15.65% Carbon, 2.16% Hydrogen, 18.26% Nitrogen, and 63.10% Oxygen?

Answers

Answer:

[tex]\mathbf{ CH_2NO_3}[/tex]

Step-by-step explanation:

Element %by         [tex](C)[/tex]                   [tex](H)[/tex]                      [tex](N)[/tex]              [tex](O)[/tex]

composition          15.56           2.16                      18.26               63.16

mole ratio  

[tex]\dfrac{\% \ by \ mass}{atomic \ number }[/tex]      [tex]\dfrac{15.56}{12}[/tex]            [tex]\dfrac{2.16}{1}[/tex]                     [tex]\dfrac{18.26}{14}[/tex]               [tex]\dfrac{63.16}{16}[/tex]

                             [tex]= 1.297[/tex]        [tex]2.16[/tex]                    [tex]1.304[/tex]                [tex]3.948[/tex]          

Divide by the

smallest value    [tex]= \dfrac{1.297}{1.297}[/tex]         [tex]= \dfrac{2.16 } {1.297}[/tex]              [tex]= \dfrac{1.304} {1.297}[/tex]          [tex]= \dfrac{3.948} {1.297}[/tex]

ratio                         [tex]1[/tex]          :        [tex]2[/tex]          :              1           :             3

The empirical formula is =  [tex]\mathbf{ CH_2NO_3}[/tex]

Please help legitimate answers only or reported. BRAINLIEST

Answers

Answer:

9. a. 6

9. b. 2; 1

9. c. 3.14; 1.57

9. d. 7.57

10. 3106.86

Step-by-step explanation:

9.  a.  The rectangle has a length of 3 and a width of 2, so that means its area has to be 6.

9. b. The semi-circle's diameter is 2, because it is the same width as the rectangle, and finding the radius, means that you need to cut the diameter in half, so the radius of the circle is 1.

9. c. To find the full circle, we must use the formula (pi)(r)^2. So we have 3.14(1), which is just equal to pi. but since we need half the circle, we must divide the number by 2, to get the answer 1.57...

9. d. Finally we need to add up all the values together, from a. we know that the rectangle has an area of 6, and from b and c, we know the semi-circle has an area of 1.57, so we add those two numbers together we get 7.57.

10. We can do the exact same thing as number nine, which means the rectangle is 30*70=2100, The radius of the circle is 15 (30/2), the area of the circle (and since there are 2 semi circles, we don't need to divide by 2) we get 706.86, now all thats left is to add the numbers together to get the number 2806.86.

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