PLEASE HELP ME !! i don't know how to answer ​

Answer:

-9

Step-by-step explanation:

The slope of the the solving equation is triple the slope of the given equation. Therefore, the y coefficient must also be triple of the other y coefficient.

Answer:

She will spend 2.66 dollars

Step-by-step explanation:

Answer:

she would spend $7.52

Step-by-step explanation:

Answer: Use SoupCalculator I have the answer I just dont want you to get it wrong

x=3

本题已由中国数学会官方解答（现有会员：3人）  

The solution is, the value of x = 3.

Logarithm, the exponent or power to which a base must be raised to yield a given number. The quotient rule says that, the logarithm of a quotient is equal to a difference & the product rule says that logarithm of product is equal to the sum of logarithm.

here, we have,

given that,

2 In e^(ln 5x) = 2 In 15

now, we have to solve it for x.

we know that,

e^(ln 5x) = 5x

using the rule of logarithm.

so, we have,

2 In (5x) = 2 In 15

now, for solving,

comparing both sides, we get,

15 = 5x

i.e. x = 15/5

or, x = 3

Hence, The solution is, the value of x = 3.

To learn more on Property of Logarithm click:

brainly.com/question/10418010

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Answer:

2(x-5)=9

Step-by-step explanation:

x is used for "a number"

Answer:

B. y + 7 = -6/5 (x+3)

Step-by-step explanation:

Use the given slope and point to substitute into the point-slope formula  y − y 1 = m ( x − x 1 ) .

Slope-intercept form:  y = − 6 /5 x − 53 /5

Point-slope form:  y + 7 = − 6 /5 ⋅ ( x + 3 )

Answer:

130 degrees

Step-by-step explanation:

A triangles angles have to equal 180 degrees

A right angle = 90 degrees

40+90=130

180-130=50

A straight angle has to equal 180 degrees

180-50=130

130 degrees

Answer:

305

Step-by-step explanation:

sorry!

Answer:

$85

Step-by-step explanation:

(if you need to explain how the anwer was gotten)

34 ÷ 4 = 8.5

8.5 × 10 = 85

Answer:

b=-5, m= - 3/-2

Step-by-step explanation:

Slope equation is y=mx+b. Slope is finding the rise(vertical change) over run(horizontal change). In this case, -3 is our negative rise and 2 is our run. Put that into fraction form, we get negative 3/2. In the slope equation, b represents the y-intercept(where the line touches the y-axis). In this case, it is -5. Hope this helps you!

Answer:

Step-by-step explanation:

Slope: -3

y-intercept: -2 (y-intercept is where a line cross the y-axis, vertical line)

Pencil on the y-intercept, three down and one to the right, then trace the line from -2 on the y-axis.

Answers:

========================================================

Explanation:

1)

For any vertical line, the slope is always undefined. Recall that slope = rise/run. For a vertical line, the run is 0 because there is no left or right movement. This leads to a division by zero error. The vertical line is also parallel to the y axis, meaning that there isn't a y intercept whenever the line isn't directly on top of the y axis.

The equation of this vertical line is x = 3 as all points on this line have the same x coordinate of 3.

-----------------------

2)

We can use the slope formula for the points [tex](x_1,y_1) = (-1,-4) \ \text{ and } \ (x_2,y_2) = (3,4)[/tex]

So,

[tex]m = \frac{y_2-y_1}{x_2-x_1}\\\\m = \frac{4-(-4)}{3-(-1)}\\\\m = \frac{4+4}{3+1}\\\\m = \frac{8}{4}\\\\m = 2\\\\[/tex]

The slope is 2.

The y intercept is -2 as this is the location where the diagonal line crosses the y axis.

The equation of this line is y = 2x-2.

-----------------------

3)

Same idea as problem 2.

[tex](x_1,y_1) = (-2,3)\\\\(x_2,y_2) = (3,-2)\\\\m = \frac{y_2-y_1}{x_2-x_1}\\\\m = \frac{-2-3}{3-(-2)}\\\\m = \frac{-2-3}{3+2}\\\\m = \frac{-5}{5}\\\\m = -1\\\\[/tex]

The slope is -1.

The y intercept is 1 because the line cuts through 1 on the y axis.

The equation is y = -1x+1 which is the same as y = -x+1.

-----------------------

4)

Pick any two points from the table. Each column represents a different (x,y) ordered pair point. Those two points selected are then plugged into the slope formula. I'll pick the first two columns.

[tex](x_1,y_1) = (1,-2)\\\\(x_2,y_2) = (2,-2)\\\\m = \frac{y_2-y_1}{x_2-x_1}\\\\m = \frac{-2-(-2)}{2-1}\\\\m = \frac{-2+2}{2-1}\\\\m = \frac{0}{1}\\\\m = 0\\\\[/tex]

Notice how the y coordinates are the same, which leads to a difference of 0 up top and ultimately the slope itself is also 0. We have a horizontal flat line here. All horizontal lines have a slope of 0.

The y intercept is -2 because all y values for this function are the same.

The equation is y = 0x-2 which is the same as y = -2.

-----------------------

5)

Again I'll pick the first two columns to plug into the slope formula, but you can pick any two columns you prefer.

[tex](x_1,y_1) = (-3,11)\\\\(x_2,y_2) = (-1,3)\\\\m = \frac{y_2-y_1}{x_2-x_1}\\\\m = \frac{3-11}{-1-(-3)}\\\\m = \frac{3-11}{-1+3}\\\\m = \frac{-8}{2}\\\\m = -4\\\\[/tex]

The slope is -4.

Use this slope value, along with any column from the table to form the (x,y) point, to plug into the slope intercept form below. I'll use the first column

y = mx+b

11 = -4*(-3)+b

11 = 12+b

11-12 = b

-1 = b

b = -1

The y intercept is -1.

The equation is y = -4x-1.

Answer:

216,000

Step-by-step explanation:

Answer:

the answer is obtuse. B. I hope this helps you!

Answer:

it is obtuse

Step-by-step explanation:

Answer:

(-2,17) i think i am not sure

Step-by-step explanation:

Answer:

29. b. 20

30. c. any real numbers

Step-by-step explanation:

I used a calculator let me know if im incorrect

Answer:

(5, -3)

Step-by-step explanation:

Answer:

2.6

Step-by-step explanation:

Could you mark this the brainlist

Answer:

2.5 or 2 1/2 ft is the width

Step-by-step explanation:

Area of rectangle = length × width

(13 3/4 can also be written as 13.75)

(5 1/2 can also be written as 5.5)

Area = l × w

13.75 = 5.5 × w

13.75 ÷ 5.5 = w

2.5 = w

Answer: The answer would be C, 1/3

Step-by-step explanation:

If you turn each proportion into a fraction and simplify each fraction, they would all simplify to 1/3. Hope this helps.

Answer:

[tex] \frac{x^{2} + 19x - 56}{4 {x}^{2} - 32x} [/tex]

Step-by-step explanation:

Start by making the denominators of both fraction the same. This can be done by multiplying one fraction's denominator by the other.

After simplifying and combining the two fractions together, check if the numerator can be factorised such that there is a common factor in the denominator and numerator. In this case, the numerator cannot be factorised.

Lastly, expand the denominator.

[tex] \frac{x + 7}{4x} + \frac{5}{x - 8} [/tex]

[tex] = \frac{(x + 7)(x - 8)}{4x(x - 8)} + \frac{5(4x)}{4x(x - 8)} [/tex]

[tex] = \frac{x(x) + x( - 8) + 7(x) + 7( - 8) + 20x}{4x(x - 8)} [/tex]

[tex] = \frac{ {x}^{2} - 8x + 7x - 56 + 20x }{4x(x - 8)} [/tex]

[tex] = \frac{ {x}^{2} + 19x - 56}{4x(x - 8)} [/tex]

[tex] = \frac{ {x}^{2} + 19x - 56}{4 {x}^{2} - 32x} [/tex]

Answer:

959/1000

Thank me later and for asking! :))

Answer:

Step-by-step explanation:

0.959 as a fraction and percent expansion provides the details of what is the equivalent fraction and percent for decimal 0.959, and the answer with steps to understand how it is being calculated.

0.959 as a Fraction

0.959 = (?)

= (0.959/1) x (1000/1000)

= 959/1000

0.959 = 959/1000

0.959 as a fraction equals to 959/1000  

Hope this helps :)

Answer:

René Descartes

Step-by-step explanation:

N/A, too simple of a question.

Answer:

filósofo René Descartes.

El plano cartesiano lleva el nombre del matemático y filósofo francés René Descartes (1596-1650), quien introdujo el sistema de coordenadas para mostrar cómo se podía usar el álgebra para resolver problemas geométricos.

Answer:

1 because you just move the decimal places two times to the left!

Hope this helps :D

Answer:

15 bottles are left

Step-by-step explanation:

we say:

20 bottles

- 5 bottles

15 bottles

Answer:

15

Step-by-step explanation:

20 - 5 = 15

Answer:

It would make 7 batches of chocolate cake

Answer:

Step-by-step explanation:

Cup of coffee has milk content:

The mixture after adding milk has:

Percentage of milk in the mixture:

7:3

Step-by-step explanation:

Answer:

Step-by-step explanation:

266 divided by 7 is 38 laps a day

Answer:

hope this helps and u understood it

check the steps in the picture attached

96 = 2 × 2 × 2 × 2 × 2 × 3 = 25 × 31, where 2 and 3 are the prime numbers. brainliest me pls

#Chloe919

#brainliest me

thanks for the points

Answer:  2^5 · 3

Step-by-step explanation: Prime Factorization refers to finding which prime numbers multiply together to form the original number. The prime factors of 96 thus obtained are written as 96 = 2 × 2 × 2 × 2 × 2 ×