guys please help me I really need it. this is chemistry. but I put it as mathematics because I never get help on my chemistry questions ​

Answer:

(-2, 3)

Step-by-step explanation:

The solution to a system of equations is the value (or values) of x and y that satisfy both equations. we can find the value of x by setting the right sides of each of our equations equal to each other and solving:

[tex]4x+11=-2x-1\\6x=-12\\x=-2[/tex]

From here, we can simply substitute -2 for x in either of the equations to calculate y. I'll choose the bottom one:

[tex]y=-2(-2)-1\\y=4-1\\y=3[/tex]

So our solution is (-2, 3).

The awnser is A!! Because the graph describes as so.

Answer:

.

Step-by-step explanation:

Answer:

-56

Step-by-step explanation:

Let the said number be x, so

x / -8 = 7

That's the equation

On solving further, we cross multiply to have

x = -8 * 7

x = -56

That means the number is -56

Answer:

21.8901 g

Step-by-step explanation:

Given that:

1 gram of pure salt contains 0.393 g of sodium

1 gram = 0.393g

Gram of sodium in 55.7g of pure salt will be x

1g = 0.393g

55.7g = x

Cross multiply:

x = 55.7 * 0.393

x = 21.8901

55.7 g of pure salt will contain about 21.8901 g of sodium chloride

The correct answer is (5,-7) Hope that helps!

Answer:

it would be (-5,6)

Step-by-step explanation:

since it is just reflected and not moving anywhere it would just be the same coordinates but flipped values. if its positive then when its reflected it would be negative.

Answer:

(4x+7)(4x+7)

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

Here you go mate

Step 1

(1+1x)(1-2x+1)(1+2x-1)  Equation/Question

Step 2

(1+1x)(1-2x+1)(1+2x-1)  Remove parenthesis

-2x^2+2-4x^3+4x+2x^2-2

Step 3

-2x^2+2-4x^3+4x+2x^2-2  Simplify

-4x^3+4x

Answer

-4x^3+4x

Hope this helps

Answer:

2x(1+x)(-2x+2)

Step-by-step explanation:

(1+x)(1-2x+1)(1+2x-1)

(1+x)(-2x+2)(1+2x-1)

(1+x)(-2x+2)*2x

2x(1+x)(-2x+2)

Answer:

2

Step-by-step explanation:

[tex]\sqrt{5.4^{2} - 5^{2} }[/tex] = 2.03

Answer:

[tex]V = 245\frac{1}{3} in^{2}[/tex]

Step-by-step explanation:

The volume of a pyramid is equal to the area of the base times height divded by three so

[tex]V = \frac{A_{base} h }{3} \\V = \frac{(8^{2})(11.5) }{3} \\V = \frac{736}{3} \\V = 245\frac{1}{3} in^{2}[/tex]

Answer:

245 1/3

Step-by-step explanation:

Answer:

Step-by-step explanation:

5/2

Answer:

A 4/10

B 5/10

Step-by-step explanation:

A because there are 4 out of the 10 that are red

B because there 5 out of the 10 that are not blue

Answer:   27 mec. pencils

Step-by-step explanation:

Answer:

y=4x+c

23=4(5) +c

23=20+c

23-20=c

3=c

y=4x+3

Step-by-step explanation:

Answer: y=4x+7

Step-by-step explanation:

Answer:

D. 118

Step-by-step explanation:

One of them is a right angle and one is 28 degrees, right angles always have 90 degrees so 90 + 28 = 118

Answer:

Wakaranai

Step-by-step explanation:

Answer:

(1,0)

Step-by-step explanation:

Answer: 430 cm

Step-by-step explanation:

Answer:

430 cm

Step-by-step explanation:

43 multiplied by 10 is 430

Answer:

A) Container X

Step-by-step explanation:

X=2C:6S  ratio, now reduce amount but keep the same ratio

X=1C:3S  

Y=4C:8S  ratio, now reduce amount but keep the same ratio

Y=1C:2S

Container X has the sweeter water because it's ratio of sugar to water is higher.

Container Y is the water sweeter.

A fraction is a part of whole number, and a way to split up a number into equal parts. Or, A number which is expressed as a quotient is called fraction. It can be written as the form of p : q, which is equivalent to p / q.

Given that;

Container X has 2 cups of water with 6 teaspoons of sugar.

And, Container Y has 4 cups of water with 8 teaspoons of sugar.

Now,

Since, Container X has 2 cups of water with 6 teaspoons of sugar.

Hence, The ratio of water with sugar for container X = 2 : 6

                                                                                 = 1 : 3

And, Container Y has 4 cups of water with 8 teaspoons of sugar.

Hence, The ratio of water with sugar for container Y = 4 : 8

                                                                                 = 1 : 2

Cleary, We get;

⇒ 1/3 < 1/2

So, Water in Container Y is more sweeter than X.

Learn more about the fraction visit:

https://brainly.com/question/5454147

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Step-by-step explanation:

Solution for 100 is what percent of 0.28:

Percentage solution with steps: Step 1: We make the assumption that 0.28 is 100% since it is our output value.

Answer:

28%

Step-by-step explanation:

Answer:

x = -3

hope it's helpful ❤❤❤

THANK YOU.

Hey there!

The answer to your question is "n = -3"

First, we can start by writing the equation as it says. "3 times a number" represents a number times 3, or "3n"

3n

Next, "5 more" represents addition, so "+ 5"

3n + 5

Finally, "is -4" means it is equal to -4, so "= -4"

3n + 5 = -4

Now that we have our equation, we can solve:

3n + 5 = -4

First, we subtract "5" from both sides of the equal sign:

3n = -9

Lastly, we divide both sides by "3".

n = -3

Have a terrificly amazing day!

Answer:

g(x)=(x-4)^2+9

Step-by-step explanation:

The function representing the g(x) is g(x) = (x - 4)² + 9.

Translation of functions is defined as the when each point in the original graph is moved by a fixed units in the same direction.

There are horizontal translation and vertical translation of functions.

Given is a function f(x).

f(x) = x²

A horizontal translation makes the function f(x) to f(x ± k), where k is the unit of translation.

And the vertical translation results in f(x) = f(x) ± k.

Here function f(x) = x² has been translated 9 units up.

f(x) → f(x) + 9 = x² + 9

Then it is translated 4 units to the right,

g(x) = (x - 4)² + 9, since the translation is towards right.

Hence the correct answer is g(x) = (x - 4)² + 9.

Learn more about Translations here :

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put 3 inside g

4(3) = 12

put 12 inside f(x)

2(12) - 5 = 19

So the answer is 19

Answer:

f

(

g

(

x

)

)

Evaluate  

f

(

x

+

3

)

by substituting in the value of  

g

into  

f

.

f

(

x

+

3

)

=

2

(

x

+

3

)

−

1

Simplify each term.

Tap for more steps...

f

(

x

+

3

)

=

2

x

+

6

−

1

Subtract  

1

from  

6

.

f

(

x

+

3

)

=

2

x

+

5

Step-by-step explanation:

Answer:

896 cubic inches

Step-by-step explanation:

V (Δ prism) = 1/2 · height · base · length

V (top prism) = 1/2(6)(12)(14)

V (top prism) = 504 in³

V (bottom prism) = 1/2(7)(8)(14)

V (bottom prism) = 392 in³

504 + 392 = 896

Answer:

2/3

Step-by-step explanation:

Add 4/9 and 2/9 together

6/9

Simplify.

Divide both sides by 3

6 divided by 3

2

9 divided by 3

3

So, the answer is 2/3

Hope this helps :)

Answer: 2/3

Step-by-step explanation:

4/9+2/9= 6/9

THey can be simplified by three so ur answer is

2/3

Answer: 50 feet

Step-by-step explanation:

Let the length be represented by x

The width of the basement is 4/5 its length. Therefore, the width is 4/5x = 0.8x

Area = Length × Breadth

2000 = x × 0.8x

0.8x² = 2000

x² = 2000/0.8

x = ✓2500

x = 50

Therefore, the length is 50feet