Mo-Qui has studied Spanish for half an hour longer than he studied History.If He spent 2 hours and 15 min studying for Spanish, but isn't finished yet, write an inequality to show how the amounts of time studying each subject are related.

Answers

Answer 1

Answer: So,

Let s represent the time Mo-Qui spent studying Spanish and h represent the time Mo-Qui spent studying History.

s = h + 30
s > 2 hrs. 15 mins. (he isn't done yet)

Substitute
2 hrs. 15 mins. = h + 30 mins.

Subtract 30 mins. from both sides
1 hr. 45 mins. = h

However, s > 2 hrs. 15 mins., so h must be more than 1 hr. and 45 mins.

h > 1 hr. 45 mins.

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Liliana and Marcus are playing a word game. Liliana spells a word incorrectly and loses 18 points. Then Marcus spells a word correctly and has the opposite score. Which is the correct way to represent “the opposite of Liliana’s score is equal to Marcus’s score”?

Answers

The correct way to represent “the opposite of Liliana’s score is + 18.

What are additive and multiplicative inverses?

A number's additive inverse is a number that is added to it until the result is zero.

A number multiplied by another such that the result is 1 is the multiplicative inverse of that number.

We know if 'a' is a number then the opposite of 'a' is '- a'.

Given, Liliana spells a word incorrectly and loses 18 points.

Looses 18 points is '- 18'.

Marcus spells a word correctly and has the opposite score which is + 18.

As opposite of - 18 is + 18.

learn more about additive and multiplicative inverses here :

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Im pretty sure its -(-18)= -18

its a different way to write plus 18 so yeah

Using rigid transformations on the trapezoid, build a pattern. Describe some of therigid transformations you used.

Answers

Using rigid transformations on the trapezoid, build a pattern can be made shown in the picture.

What is a trapezoid?

It is defined as the quadrilateral having four sides in which two sides are parallel to each other, it is a 2-dimensional geometry.

It is given that:

The trapezoid is shown in the table:

As we know,

The geometric transformation can be defined as the change in coordinates and the shape of the geometrical body. It is also referred to as a two-dimensional transformation. In the geometric transformation, changes in the geometry can be possible by rotation, translation, reflection, and glide translation.

After rotating the trapezoid about 180 degrees at the point where 60 degrees angle is formed.

Thus, using rigid transformations on the trapezoid, build a pattern can be made shown in the picture.

The question is incomplete.

The complete question is in the picture, please refer to the attached picture.

Learn more about the trapezoid here:

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Please solve this proportion with steps (I'm stuck)
(9x+6)/18= (20x+4)/3x

Answers

$(9x+6)/(18)=(20x+4)/(3x)$

Cross multiply. Distribute...
$3x(9x+6)=18(20x+4)\n27x^2+18x=360x+72\n27x^2-342x-72=0\n3x^2-38x-8=0$

OH GOD IT'S A QUADRATIC
(our equation is in ax² + bx + c = 0 form. a=3. b= -38. c= -8.
plug these values into the quadratic formula and simplify.)
$x=(-b\pm√(b^2-4ac))/(2a)=(-(-38)\pm√((-38)^2-4(3)(-8)))/(2(3))=\frac{38\pm√(1444+96)}6\n\n√(1444+96)=√(1540)=√(4*345)=2√(345)\n\n\frac{38\pm2√(345)}6=\boxed{x=\frac{19\pm√(345)}3}$

Approximate values for x: -0.20714 or 12.874

First, distribute your like terms, which in this case is 'x'

you should get (9x+6)/18= 60x + 12

then you have to multiply both sides by 18 to get rid of the fraction

you should then get 9x+6= 1080x + 206

next, subtract 9x from 1080x, you should get 1071x

then subtract 206 on the side the 6 is on and you should get -200=1080x

divide both sides by 1080 and you should get x=0.19

For future preferences use PEMDAS = Parentheses, exponents, multiplication, division, addition, and subtraction. (Yeah, I know I didn't do it in that order)

Help meh PleaSeWhich does not show a direct variation between x and y?
A.y=4/x

B.y=0.5x

C.y= 7x

D.y=x/9

Answers

The formula for direct variation is y = kx where k ≠ 0

y = 9/x is an inverse relation

√96 > 8
True or false
√15 < π
True or false

Answers

First true
Second false

Determine the degree of the polynomial −65b+53x3y.

Answers

Answer:

Degree = 4

Step-by-step explanation:

The degree of a term is the sum of the exponents of its variables and the degree of a polynomial is the highest degree of all its terms. The highest degree of all the terms in −65b+53x^3y is 4. So, the degree of −65b+53x^3 y is 4.

Answer:

Step-by-step explanation:

The degree is the largest exponent on the variable.

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