please help with this question

Answer:

\(y = - 7\)

Solving steps:

=> 26=-12y-9+7y

Step 1: Simplify both sides of the equation.

make y the subject of formula

=> 26=−12y+−9+7y

=> 26=(−12y+7y)+(−9)

Combine like terms

=> 26=−5y+−9

=> 26=−5y−9

Step 2: Flip the equation.

=> −5y−9=26

Step 3: Add 9 to both sides.

=> −5y−9+9=26+9

=> −5y=35

Step 4: Divide both sides by -5.

.=> \( \frac{ - 5y}{ - 5} = \frac{35}{ - 5} \)

=> y = - 7

Step-by-step explanation:

\(i) \frac{ \sqrt{2} }{ \sqrt{3} } \)

\( \frac{ \sqrt{2} }{ \sqrt{3} } \times \frac{ \sqrt{3} }{ \sqrt{ 3} } \)

\( \frac{ \sqrt{6} }{3} \)

\(ii) \frac{5 \sqrt{2} }{2 \sqrt{3} } \)

\( \frac{5\sqrt{2} }{ 2\sqrt{3} } \)

\( \frac{5 \sqrt{2} }{2 \sqrt{3} } \times \frac{ \sqrt{3} }{ \sqrt{3} } \)

\( \frac{5 \sqrt{6} }{6} \)

\( iii)\frac{15}{ \sqrt{5} } \)

\( \frac{15}{ \sqrt{5} } \times \frac{ \sqrt{5} }{ \sqrt{5} } \)

\( \frac{15 \sqrt{5} }{5} \)

\(3 \sqrt{5} \)

\( iv)\frac{ \sqrt{5} }{5 \sqrt{6} } \)

\( \frac{ \sqrt{5} }{ 5\sqrt{6} } \times \frac{ \sqrt{6} }{ \sqrt{6} } \)

\( \frac{ \sqrt{30} }{ 30} \)

Answer:

x = 7

Step-by-step explanation:

3x+2=23

Subtract 2 from each side

3x+2-2 = 23-2

3x = 21

Divide each side by 3

3x/3 = 21/3

x = 7

Answer:

\( \sf \: x = 7\)

Step-by-step explanation:

Now we have to,

→ Find the required value of x.

The equation is,

→ 3x + 2 = 23

Then the value of x will be,

→ 3x + 2 = 23

→ 3x = 23 - 2

→ 3x = 21

→ x = 21 ÷ 3

→ [ x = 7 ]

Hence, the value of x is 7.

Answer:

\(2x + 3x + 1 + 2x - 3 = 40 \\ 7x = 42 \\ x = 6\)

Answer:

D. 10

Step-by-step explanation:

To solve this question, first, find the perimeter of the triangle. Since all the sides add to 40, you can use the equation:

a + b + c = 40

Where a, b, and c are the sides.

2a - 3 + 3a + 1 + 2a = 40

Combine like terms.

2a + 3a + 2a - 3 + 1 = 40

7a - 2 = 40

Add 2 to both sides.

7a = 42

Divide both sides by 7.

a = 6

Now that you know this, find the values of each side.

Side 1:

2a - 3

2(6) - 3

12 - 3

9

Side 2:

3a + 1

3(6) + 1

18 + 1

19

Side 3:

2a

2(6)

12

This means that the longest side is side 2 (19, or 3a + 1) and the shortest side is side 1 (9, or 2a - 3).

To find how much bigger the longest side is than the shortest side, take the difference of the two sides.

19 (longest side) - 9 (shortest side) = 10.

Answer:

4250 m

Step-by-step explanation:

1 day = 850

5 days = 850×5

= 4250

Answer:

rag each expression to show whether it is equivalent to 36x + 9, ... 3.2/5. 20. AthenaSinclair. Ambitious. 467 answers. 151.9K people helped ... Lastly,, we will look at the final expression given which is 4(9x + 2). ... (25 votes).

Step-by-step explanation:

13 c is equal to 48.775 L.

Equality in math is a concept that states that two expressions, equations, or values are equal to each other. Equality is symbolized by the equals sign “=.” Equality is a fundamental law of mathematics, and it is used in a variety of contexts and equations. Equality can be used to compare two different objects, or to set a value for a single object. Equality can also be used to determine if two equations are equivalent. Equality is an important concept in mathematics, as it allows us to find solutions to difficult problems.

5 gallons (gal) is equal to 18.925 liters (L). Therefore, 13 c is equal to 48.775 L.

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Yana opened her saved paper, wrote, took a break, deleted some of the words, and then began writing again. Then the correct option is A.

What is a function?

A statement, principle, or policy that creates the link between two variables is known as a function. Functions are found all across mathematics and are required for the creation of complex relationships.

Yana is in the school computer lab writing a paper for history class. The graph represents the number of words Yana has written after a number of minutes.

The graph is given below.

From the graph, Yana opened her saved paper, wrote, took a break, deleted some of the words, and then began writing again.

Then the correct option is A.

More about the function link is given below.

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Answer:

b) 180

Explanation:

\(180 / 2 = 90\\180 / 3 = 60\\180 / 4 = 45\\180 / 5 = 36\\180 / 6 = 30\)

Hope you have a nice day and a nice Thanksgiving!

A brainiliest would also be nice. thx.

Answer:

Step-by-step explanation:

A

Answer:

The sum will be close to 1/4

Step-by-step explanation:

1/8+1/6 is 7/24, and 1/4th of that is 6/24, so it is very close.

Answer: The sum will be close to 1/4

Step-by-step explanation:

You can start by making the fractions have the same denominator, (8*6) which gets you 48

You then want to use the butterfly method, so 1/8 becomes 6/48 and 1/6 becomes 8/48. You then add these up to 14/48.

12/48 is 1/4, and 14/48 is close to 12/48, thus making the answer the first option.

Answer:

Step-by-step explanation: m=s-c/c

The domain of a function are the possible input values, the function can take.

The domain of \(f(x) = \sqrt{2x^2 + 5x - 12}\) is: \((-\infty, -4]\ u\ [1.5,\infty)\)

We have:

\(f(x) = \sqrt{2x^2 + 5x - 12}\)

Since f(x) is radical, we simply equate the radicand to 0

So, we have:

\(2x^2 + 5x - 12 = 0\)

Expand

\(2x^2 + 8x - 3x - 12 = 0\)

Factorize

\(2x(x + 4) -3(x + 4) = 0\)

Factor out x + 4

\((2x - 3)(x + 4) = 0\)

Solve for x

\(2x - 3 = 0\) or \(x + 4 = 0\)

\(2x = 3\) or \(x = -4\)

\(x = \frac 32\) or \(x = -4\)

\(x = 1.5\) or \(x = -4\)

-4 is less than 1.5

So, the domain is:

\(x \le -4\) or \(x \ge 1.5\)

Represent as an interval notation

\((-\infty, -4]\ u\ [1.5,\infty)\)

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Answer:

its c

Step-by-step explanation:

Answer:90 shirts

Step-by-step explanation: do 1.5 x 1.6 = that answer and + 60 to that answer ok

Answer:

X=6

Step-by-step explanation:

5x+(x+54)=90

6x+54=90

6x=36

X=6

Step-by-step explanation:

there is something severely wrong with the problem definition.

when the Hypotenuse = 9, there is no 30-60-90 triangle with a leg = 6.

and when we are just focusing that this is a right-angled triangle with the Hypotenuse = 9, then 6 cannot be the longer leg.

it is also not clear what the solution is supposed to be. the 2nd leg ? the area ? the perimeter ? the height(s) ? ...

what ?

so, all I can do here is to show you why I said what I said :

30-60-90 triangle with Hypotenuse = 9

then the longer leg is opposite of the 60° angle and therefore sin(60)×9 = 7.794228634...

the shorter leg is opposite of the 30° angle and therefore sin(30)×9 = 0.5×9 = 4.5

a right-angled triangle with Hypotenuse = 9, one leg = 6 gives us per Pythagoras for the other leg

9² = 6² + leg²

81 = 36 + leg²

45 = leg²

leg = sqrt(45) = 6.708203932...

so, you see, as stated above, there is no leg with the length 6 in such a 30-60-90 triangle.

and in a more general right-angled triangle, if one leg = 6, then the other leg is actually longer.

therefore, there is everything wrong with the problem definition.

Answer:

the standard error of the proportion is 0.0272

Step-by-step explanation:

We have that if the sample size is greater than 5% of the entire population, a finite population correction factor (fpc) is multiplied with the standard error :

fpc = \(\sqrt{\frac{N -n}{N -1} }\)

We know that N = 250 n = 91, replacing:

fpc = \(\sqrt{\frac{250 - 91}{250 -1} }\)

fpc = 0.799

Now, the formula would then be:

SE  = \(\sqrt{\frac{p * (1 -p)}{n} }\)*fpc

Now replacing, knowing that p = 0.12

SE= \(\sqrt{\frac{0.12 * (1 - 0.12)}{91} }\)*0.799

SE = 0.0272

So the standard error of the proportion is 0.0272

Answer: $227,226.51

Step-by-step explanation:

First, we need to convert the period to weeks.

9 1/2 years = 9.5 years

1 year = 52 weeks

9.5 years = 494 weeks

Next, we can use the formula for the future value of an annuity:

FV = (PMT x (((1 + r/n)^(n*t)) - 1)) / (r/n)

where:

PMT = payment amount per period

r = annual interest rate

n = number of compounding periods per year

t = number of years

Plugging in the given values:

PMT = $300

r = 0.055 (5.5% expressed as a decimal)

n = 52 (compounded weekly)

t = 9.5 years = 494 weeks

FV = ($300 x (((1 + 0.055/52)^(52*494)) - 1)) / (0.055/52)

FV = $227,226.51

Therefore, the future value of the annuity is approximately $227,226.51.

Therefore , the solution of the given problem of inequality comes out to be graph 2 shows the solution for this system.

In mathematics, an inequality is a linear connection or a collection of numbers even when there is no equal sign. Equity always comes after equilibrium. When two numbers are not equal, inequality exists. Between equality and inequality, there exist differences. The most common symbol was chosen because when parameters aren't the same or comparable (). Values can be compared using a variety of disparities, no matter how few or numerous they are.

Here,

Given :

=> x + y ≥ 5

and

=> - 3x + 2y ≤-2

So,

=> x ≥ 5- y

=> - 3(5- y) + 2y ≤-2

=> -15 + 3y + 2y ≤-2

=> 5y ≤ 13

=> y  ≤  13/5

and

=> x ≥ 5-  13/5

=>  x ≥  12/5

Therefore , the solution of the given problem of inequality comes out to be graph 2 shows the solution for this system.

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Answer: 60

Step-by-step explanation:

The negatives cancel each other out and you are left with 15 times 4

Answer:

x = 4

Step-by-step explanation:

if a line is parallel to a side of a triangle and it intersects the other two sides then id divides those sides proportionally.

DE is such a line , then

\(\frac{BD}{AD}\) = \(\frac{BE}{EC}\)  ( substitute values )

\(\frac{x+2}{x}\) = \(\frac{3}{2}\) ( cross- multiply )

3x = 2(x + 2)

3x = 2x + 4 ( subtract 2x from both sides )

x = 4

Thank you for taking the time to read this!

And I hope you have a good day, Loves!

Also if I'm right can you let me know, please?

Also Also if I am right can I please have Brainliest??

You don't need to, I'm just glad I could help. ^^

(If I did help-)

And don't forget to eat a full meal, and have at least one cup of water today!

The standard notation of the number 5 × 10⁶ would be 50,00,000.

Used the concept of scientific notation that states,

Scientific notation is a way of writing very large or very small numbers.

For example; 230,000,000 can be written in scientific notation as

2.3 x 10⁸.

Given that the number is,

5 × 10⁶

Now it can be written in standard notation,

5 × 10⁶

5 × 10 × 10 × 10 × 10 × 10 × 10

5 × 1000000

50,00,000

Therefore, The standard notation of the number is 50,00,000.

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Answer:

A

Step-by-step explanation:

If you get that right, follow Sammy Revv on Spotify please

Answer:

12.

Step-by-step explanation:

if to re-write the given condition, then

\(\frac{3}{0.25} =\frac{18}{1.5} =\frac{30}{2.5} =\frac{36}{3} ;\)

it is clear, the required constant is 12 (12 per hour).