Need help pleaseeeee:)

Answer:

The answer is x=27/28

Step-by-step explanation:

Solve for x by simplifying both sides of the equation, then isolating the variable.

The solution of the expression is,

⇒ x = 27/28

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The expression is,

⇒ 2x - 1/4 + x/3 = 2

Now, Solve the expression as;

⇒ 2x - 1/4 + x/3 = 2

⇒ 2x + x/3 = 2 + 1/4

⇒ 7x/3 = 9/4

⇒ 7x = 27/4

⇒ x = 27/28

Learn more about the mathematical expression visit:

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Answer:

C

Step-by-step explanation:

sin= opposite/hypotenuse

Answer:

what?

Step-by-step explanation:

Answer:

245

Step-by-step explanation:

What is 70 percent (calculated percentage %) of number 350? Answer: 245.

Answer:

x = -1.9

Step-by-step explanation:

3(x-8) = -29.7 Given

3x - 24 = -29.7 Distributive property

3x - 24 + 24 = -29.7 + 24 Addition property of equality

3x = -5.7

3x ÷ 3 = -5.7 ÷ 3 Division property of equality

x = -1.9 Answer

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

Answer:

angle 2 and angle 8 are alternate interior angles

Step-by-step explanation:

Answer: 1)2x=4 -> 4/2 = 2 so x=2

2) y=0

3) x=3

4) 2y + (3*3y) = -15

11y=-15

y = -15/11

5) 4x + 7x + 63 = 19

11x = -44

x = -4

Step-by-step explanation:

Answer:

y = 28.1

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Step-by-step explanation:

Step 1: Set Up Equation

"Difference" is subtraction

"y" is y

"8.1" is 8.1

"is" is equal

"20" is 20

y - 8.1 = 20

Step 2: Solve for y

Given:

Volume of Large cube = 1 cubic unit

Volume of small cube = [tex]\dfrac{1}{27}[/tex] cubic unit

To find:

The difference between the edge length of the large cube and the edge length of the small cube.

Solution:

Let the edges of large and small cubes are [tex]a_1[/tex] and [tex]a_2[/tex] respectively.

We know that, volume of a cube is

[tex]V=(edge)^3[/tex]

Volume of Large cube = 1 cubic unit

[tex](a_1)^3=1[/tex]

Taking cube root on both sides, we get

[tex]a_1=1[/tex]

So, edge of large cube is 1 unit.

Volume of small cube = [tex]\dfrac{1}{27}[/tex] cubic unit

[tex](a_2)^3=\dfrac{1}{27}[/tex]

Taking cube root on both sides, we get

[tex]a_2=\dfrac{1}{3}[/tex]

So, edge of large cube is [tex]\dfrac{1}{3}[/tex] unit.

Now, difference between them is

[tex]d=a_1-a-2[/tex]

[tex]d=1-\dfrac{1}{3}[/tex]

[tex]d=\dfrac{3-1}{3}[/tex]

[tex]d=\dfrac{2}{3}[/tex]

Therefore, the difference between the edge length of the large cube and the edge length of the small cube is [tex]\dfrac{2}{3}[/tex] unit.

Answer:

He would need to walk the dog 6 more times because 8 times 11 is 88 and if he has already walked the dog 5 times you would subtract that from 11 to get 6. So the answer would be 6

Step-by-step explanation:

8·11= 88

11-5= 6

Answer:

1/49

Step-by-step explanation:

multiplying two of these, as long as the bases are the same, which is true here, you can add the exponents

so the exponents would be

-5/6 + (-7/6)=-5/6-7/6=-12/6=-2

7^-2=1/49

Answer:

Step-by-step explanation:

1/49

Answer:

1.83 was not thrown away

Answer:

2 1/6

Step-by-step explanation:

6 1/2 - 4 2/3 = 2 1/6

Answer:pi^4

Step-by-step explanation:

When you divide exponents, you subtract them. So you would subtract 11-7=4. The exponent would be 4 and base would be ok. Brainlist please!

Answer:

see explanation

Step-by-step explanation:

Using the rule of exponents

[tex]a^{-m}[/tex] ⇔ [tex]\frac{1}{a^{m} }[/tex] , then

[tex]1.5^{-2}[/tex]

= [tex]\frac{1}{1.5^{2} }[/tex]

= [tex]\frac{1}{2.25}[/tex]

= 0.4444.....

Answer: {(-5, 6), (-3, 13), (-14, 30)} is a function

{(12, 12), (12, 13), (12, 14)} and {(1, 3), (4, 5), (4, 9), (6, 19)} are not a function

Answer:

the second set

Step-by-step explanation:

You cannot have the same number in your domain twice.

Answer:

The quotient of two integers may not always be an integer.

Therefore, I do not agree when a student says that the sum difference, product, and quotient of two are always integers.

Step-by-step explanation:

The student is not largely correct!

The sum, difference, and product of two integers is indeed always an integer.

But, the quotient of two integers may not always be an integer.

i.e.

4/2 = 2

i.e.

2/3 = 0.67

Therefore, I do not agree when a student says that the sum difference, product, and quotient of two are always integers.

Answer:

What do you mean? It could be both, in different ways.

Answer:

Try to find it !

Step-by-step explanation:

look at every spot you went to in the day ! retrace your steps !

Answer:

Option (4)

Step-by-step explanation:

Vertices of ΔABC are,

A → (-9, 3)

B → (-9, 6)

C → (0, 3)

If the given triangle is rotated 180° about the origin image triangle will have the vertices as,

Rule for the rotation,

(x, y) → (-x, -y)

A' → (9, -3)

B' → (9, -6)

C' → (0, -3)

If a point (x, y) is dilated by a scale factor of 'k',

Rule for the dilation,

(x, y) → (kx, ky)

Since, ΔA"B"C" is smaller than ΔABC,

Therefore, dilating ΔA'B'C' by a scale factor = [tex]\frac{1}{3}[/tex]

Image triangle ΔA"B"C" will be,

A" → (3, -1)

B" → (3, -2)

C" → (0, -1)

Therefore, Option (4) is the correct option.

Answer:

the guy above me is wrong the correct option is the second option

Step-by-step explanation:

i just got it wrong & it showed me the answer

Answer:

The inverse of f(x) is [tex]f^{-1}[/tex](x) =  ± [tex]\sqrt{\frac{x+\frac{11}{4}}{3}}[/tex] + [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

To find the inverse of the quadratic function f(x) = ax² + bx + c, you should put it in the vertex form f(x) = a(x - h)² + k, where

∵ f(x) = 3x² - 3x - 2

→ Compare it with the 1st form above to find a and b

∴ a = 3 and b = -3

→ Use the rule of h to find it

∵ h = [tex]\frac{-(-3)}{2(3)}[/tex] = [tex]\frac{3}{6}[/tex] = [tex]\frac{1}{2}[/tex]

∴ h =  [tex]\frac{1}{2}[/tex]

→ Substitute x by the value of h in f to find k

∵ k = 3( [tex]\frac{1}{2}[/tex])² - 3( [tex]\frac{1}{2}[/tex]) - 2

∴ k = [tex]-\frac{11}{4}[/tex]

→ Substitute the values of a, h, and k in the vertex form above

∵ f(x) = 3(x -  [tex]\frac{1}{2}[/tex])² + [tex]-\frac{11}{4}[/tex]

∴ f(x) = 3(x -  [tex]\frac{1}{2}[/tex])² - [tex]\frac{11}{4}[/tex]

Now let us find the inverse of f(x)

∵ f(x) = y

∴ y = 3(x -  [tex]\frac{1}{2}[/tex])² - [tex]\frac{11}{4}[/tex]

→ Switch x and y

∵ x = 3(y -  [tex]\frac{1}{2}[/tex])² - [tex]\frac{11}{4}[/tex]

→ Add [tex]\frac{11}{4}[/tex] to both sides

∴ x + [tex]\frac{11}{4}[/tex] = 3(y - [tex]\frac{1}{2}[/tex])²

→ Divide both sides by 3

∵ [tex]\frac{x+\frac{11}{4}}{3}[/tex] = (y - [tex]\frac{1}{2}[/tex])²

→ Take √ for both sides

∴ ± [tex]\sqrt{\frac{x+\frac{11}{4}}{3}}[/tex] = y - [tex]\frac{1}{2}[/tex]

→ Add  [tex]\frac{1}{2}[/tex] to both sides

∴ ± [tex]\sqrt{\frac{x+\frac{11}{4}}{3}}[/tex] + [tex]\frac{1}{2}[/tex] = y

→ Replace y by [tex]f^{-1}[/tex](x)

∴ [tex]f^{-1}[/tex](x) =  ± [tex]\sqrt{\frac{x+\frac{11}{4}}{3}}[/tex] + [tex]\frac{1}{2}[/tex]

∴ The inverse of f(x) is [tex]f^{-1}[/tex](x) =  ± [tex]\sqrt{\frac{x+\frac{11}{4}}{3}}[/tex] + [tex]\frac{1}{2}[/tex]

Answer:

15 centimeters

Step-by-step explanation:

Ratio of Mr. Thompson rectangle = length : width

= 5 : 2

Audrey plans to draw a rectangle with a width of 6 centimeters.

Ratio of Audrey rectangle = length : width

= x centimeters : 6 centimeters

Equate the two ratios to find the value of x

5 : 2 = x : 6

Cross product

5 * 6 = 2 * x

30 = 2x

Divide both sides by 2

x = 30 / 2

= 15

x = 15 centimeters

Audrey's rectangle should have a length of 15 centimeters

Answer:

15

Step-by-step explanation:

Answer:

$956

Step-by-step explanation:

Interest = Principal(Rate)(Time)/100

Interest = 838.5(19)(6)/100)

Interest = $95589/100

Interest = $955.89

Interest = $956(to the nearest cent)(Answer)

Answer:

First tanks

Step-by-step explanation:

Rate for the first tank

One tank is filling at a rate of 5/8 gallon per 7/10 hour.

= 5/8 gallon ÷ 7/10 hour

= 5/8 ×10/7 (gallon/hour)

= 25/28 gallon/hour

= 0.8928571429 gallon /hour

Rate for the second tank

A second tank is filling at a rate of 5/9 gallon per 2/3 hour.

5/9 gallon ÷ 2/3 hour

5/9 × 3/2 (gallon per hour)

= 5/6 (gallon per hour)

= 0.8333333333 gallon/hoir

The tank that is filling faster the first tank at the rate of 0.8928571429 gallon /hour

Answer:

40

Step-by-step explanation:

5 x 5 is 25 so 2 x 5, 20 times makes 40

Answer:

80%

Step-by-step explanation:

Let's call the past exam mark m,

m*105%=84

m*105/100=84

m=84/(105/100)

m=80

Hope this helps!

Answer:

80

Step-by-step explanation:

new value = 84

old value = n

can use percent change formula:  (new value - old value) / old value = 5/100

[tex]\frac{84-n}{n}[/tex] = [tex]\frac{5}{100}[/tex]

cross-multiply (you can simplify 5/100 to be 1/20 first):  20(84 - n) = n

1680 - 20n = n

1680 = 21n

n = 80

Answer:

uhh i think

Step-by-step explanation:

just the horizontal and the diagonal

can i have brainliest plz

Answer:

b,c

Step-by-step explanation:

hello, the answer to this is / and ----- or b and c I got this right on my test :)