x/20 - 2/5 = 3/4

Plz help :)

Answer:

D. [tex]-2a^2+2a+4[/tex]

Step-by-step explanation:

[tex]d_1=a^2+2a+3\\d_2=2a^2+a+1\\[/tex]

First, substitute both of these equations into [tex]2(d_1-d_2)[/tex]

[tex]2((a^2+2a+3)-(2a^2+a+1))[/tex]

Now, you just simplify. I don't have much to say about it, but here's the steps:

[tex]2(a^2+2a+3-2a^2-a-1)\\2(a^2-2a^2+2a-a+3-1)\\2(-a^2+a+2)\\-2a^2+2a+4[/tex]

Your answer is D. [tex]-2a^2+2a+4[/tex]

Answer:

2.41

Step-by-step explanation:

-2.08-(4.49)=

-2.08+4.49=2.41

Answer:

2.41

Step-by-step explanation:

The answer is 2.14 because the numbers in the problem are both negative making the solution/ answer positive 2.41! :D

Let a ∈ A. Then a is some integer that is divisible by 4, so we can write a = 4k for some integer k.

We can simultaneously rewrite a as a = 2•2k, so 2 clearly divides a, which means a ∈ B as well.

Therefore A ⊆ B.

Answer:

4x−y=−3

Step-by-step explanation:

The standard form of a linear equation is Ax+By=C

Rewrite the equation with the sides flipped.

4x+3=y

Move all terms containing variables to the left side of the equation.

Subtract y from both sides of the equation.

4x+3−y=0

Move 3

4x−y+3=0

Subtract 3 from both sides of the equation.

4x−y=−3

Answer:

4x - y = -3

Step-by-step explanation:

Rearrange the equation.

y = 4x + 3

0 = 4x +3 - y

-3 = 4x - y

Answer:

$33333.33

Step-by-step explanation:

Suppose x invested into the bank account that pays 4% simple Interest

5x4%x+5x6.4%(50000)= 12000 { The interest due is equal to interest}

4x+6.4x50000-6.4x=240000

2.4x=80000

x=33333.33

Answer:

750 paise

Step-by-step explanation:

just remove the decimal!

Step-by-step explanation:

f(x) = -7x² - x

g(x) = 9x² - 4x

(f - g)(x) = (-7x² - x) - (9x² - 4x)

(f - g)(x) = (-7x² - 9x²) + (-x + 4x)

(f - g)(x) = -16x² + 3x

(f - g)(1) = -16(1)² + 3(1)

(f - g)(1) = -16.1 + 3

(f - g)(1) = -16 + 3

(f - g)(1) = -13

Answer:

Correct answer is D 146°

Step-by-step explanation:

x= 90° +56° ( Exterior angle of a triangle is equal to the two opposite interior angles)

x= 146°

Answer:

-1 = 5x - 2x

Step-by-step explanation:

When 2x will go to the other side of the equal sign, it will become negative.

5x - 2x will become 3x

From here you will get Equation B

2x - 1 = 5x

-1 = 5x - 2x

-1 = 3x

Answer:

24 kids in the classroom.

Answer:

x > 6

Step-by-step explanation:

The first thing you need to know is that when you solve inequalities, imagine the greater than or less than sign as an equal sign as you solve. Use the same rules as you would use in algebra: do the same thing to one side to the other side. Now the equation is writen as 4 + 3x > 22. The first step is to subtract 4 to take it from that side of the equation and isolate the x. Remember that if you divide or multiply by a negative number, you must flip the inequality sign. Now you subract 4 from both sides as we were saying, the equation is now 3x > 18. The last step is to divide 3 from both sides to isolate the variable. The 3 next to the x represents multiplication. The final answer is x > 6

Hope this helped :)

Answer:

DX wonder if if you want to come over and watch the way to the way to the way to the way to the way to the way to work I you you you can send me the way to the way to the way to the way to the way to the way home now I will be more than enough for me for all of us her

Step-by-step explanation:

Do not know sorry

........ M

Answer:The first goes to the first, the second to the third, the third to the fourth and the fourth to the second.

Step-by-step explanation:

9514 1404 393

Answer:

  y -1 = 5/6(x +8)

Step-by-step explanation:

The point-slope equation of a line is ...

  y -k = m(x -h) . . . . . line through point (h, k) with slope m

For point (-8, 1) and slope 5/6, the equation is ...

  y -1 = 5/6(x +8)

_____

Additional comment

If you want a line with slope -3/4 through the same point, change 5/6 to -3/4:

  y -1 = -3/4(x +8)

A. 5.72 > 4.75

B. 36.2 > 36.12

C. 9.18 < 9.19

D. 7.6 = 7.60

E. 0.8243 > 0.82

F. 0.43 > 0.425

G. 125.6 > 120.8

H. 7.219 < 7.229

I. 0.991 = 0.99100

J. 0.2 > 0.02

L. 01.4 < 110.4

M. 0.031 = 0.310

I couldn't solve for K because the options are not given properly.

Do comment if you have any query.

Hope it helps.

Answer:

Step-by-step explanation:

4

4

3

1

Answer:

14.88 kilometers per liter.

Step-by-step explanation:

^

Answer:

check step by step for it (:

Step-by-step explanation:

go in order

1 is 56:24

2 is 28:12

3 doesn't work for 56, the division doesn't result in a whole number

4 is 14:6

5, N/A

6 is N/A for 56

7 is 8 for 56 and NA for 24

8 is 7:3

boom (:

Answer:

3

Step-by-step explanation:

Answer:

$1,080.00

Step-by-step explanation:

$1,500 - 28% = $1,080.00

-7.21 < - 7.18 < -7.09 < 6.99 < 7.15

Step-by-step explanation:

-7.21

-7.18

-7.09

6.99

7.15

Answer:

see below

Step-by-step explanation:

As sin(t) = -3 / 5 and in quadrant 4

so cos is positive

a) sin^2(t) + cos^2(t) = 1

(-3/5)^2 + cos^2(t) = 1

cos^2(t) = 1 - (9/25)

cos^2(t) = (25 - 9) / 25 = 16/25

cos(t) = +4/5

b) sin(2t) = 2 sin(t)cos(t)

= 2 * (-3/5) * (4/5)

= -24/25

c) cos(2t) = cos^(t) - sin^2(t)

= (4/5)^2 - (-3/5)^2

= 16/25 - 9 / 25

= 7 / 25

d) tan(2t) = sin(2t) / cos(2t)

= (-24/25) / (7/25)

= -24/7

e) as sin(2t) is negative and cos(2t) is positive

2t is in Quadrant 4

I am not sure for below three

f) cos(t) = cos^2(1/2 t) - sin^2(1/2 t) = 4/5

  cos^2(1/2 t) + sin^2(1/2 t) = 1

by adding and solving

1 + 4/5 = 2 * cos^2(1/2 t)

9/10 = cos^2(1/2 t)

cos(1/2 t) = +- 3/[tex]\sqrt{10}[/tex]

and sin(t) = 2 * sin(1/2 t) * cos(1/2 t) = -3/5

2 * sin(1/2 t) * 3/sqrt{10} = -3/5

sin(1/2 t) = +- 1/sqrt{10}

means here sin and cos for 1/2 t should be opposite signs

so it is either 2nd or 4th quadrant

g) sin( 1/2 t) = +-1/sqrt{10}

h) cos(1/2 t) = +- 3/sqrt{10}

Answer:

12 long sleeved

Step-by-step explanation:

30 / 5 = 6

6 x 2 = 12

Answer:

12

Step-by-step explanation:

The 5 part of the ratio relates to 30 short- sleeved shirts.

Divide by 5 to find the value of 1 part of the ratio

30 ÷ 5 = 6 ← value of 1 part , then

2 parts = 2 × 6 = 12 ← long- sleeved shirts

Answer:

x=31.5

Step-by-step explanation:

Step-by-step explanation:

[tex] = { (- 12)}^{ - 2} [/tex]

[tex] = \frac{1}{ {( - 12)}^{2} } [/tex]

[tex] = \frac{1}{ {12}^{2} } \: or \: \frac{1}{144} [/tex]

Answer:

9 Km a su casa

Step-by-step explanation:

0j

Answer:

Step-by-step explanation:

A relation is a function if every input has exactly one output. The domain and range of a relation that is not a function can have multiple outputs for a single input.

1. A relation is considered a function if every input has exactly one output. To determine if the relation on the right is a function, we can examine the x-values and see if any are repeated. If there are no repeated x-values, then it is a function. If there are repeated x-values, then it is not a function.

2. A relation that is not a function can have multiple outputs for a single input. The domain of a relation refers to the set of all possible input values, while the range refers to the set of all possible output values. Without the relation provided, it is not possible to state the specific domain and range.

Learn more about the topic of Functions here:

https://brainly.com/question/21145944

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