Hurry help me solve this equation.

Hurry Help Me Solve This Equation.

Answers

Answer 1

Answer:

Step-by-step explanation:

the 3rd one

Answer 2
I am pretty sure is the third one

Related Questions

A dress is marked up from 75 dollars to 125 dollars. What is the percent increase?

Answers

Answer:

66.67%

Step-by-step explanation:

Percentage increase

[tex] = \frac{125 - 75}{75} \times 100 \\ \\ = \frac{50}{75} \times 100 \\ \\ = \frac{5000}{75} \\ \\ = 66.67\%[/tex]


What is the slope of the line through the points,
(-4,2) & (5,-1)

Answers

Answer:

-1/3

Step-by-step explanation:

[tex]m=\frac{y_2-y_1}{x_2-x_1}\\m=\frac{-1-2}{5--4}\\m=\frac{-3}{9}=-\frac{1}{3}[/tex]

I don't know how to do math that good so i need help with math

Answers

Answer:

sure i can definitely help

Step-by-step explanation:

whats your problem?

Zx and Zy are supplementary angles. Zy measures 142º.
What is the measure of Zx?

Answers

Answer:

Supplementary angles means the sum will be 180 degrees. So since Zx = 142 degrees, allow: 180 = 142 + Zy. So, 180 - 142 = 38 degrees = Zy.

Step-by-step explanation:

Calculate the slope of the points (3, 1) and (2, 4).

Answers

Answer:

m=-3

Step-by-step explanation:

Answer:

-3

Step-by-step explanation:

Use the formula y2-y1/x2-x1

4-1/2-3

3/-1

Therefore, the slope is -3

reflect (-6, -7) in the x-axis thanks:)

Answers

(-6,7) since it’s the x axis you just change the sign of the y and keep x the same

The pyramid pictured below has a total surface area of 156 feet squared find the missing measurement

10 points is all i have

Answers

Answer:

maybe 36

Step-by-step explanation:

but can u help me What is the surface area of a square-based pyramid with a base length of 5 m and a slant height of 3 m?

Enter your answer in the box.

The missing measurement is 10 feet.

What is pyramid?

A three-dimensional shape is a pyramid. A pyramid's flat triangular faces unite at a common point known as the apex and have a polygonal base. The bases are joined to the peak to create a pyramid. The lateral face is a triangle face formed by the connection of each edge of the base to the apex.

To find the surface area of the pyramid, we can use the following formula,

A = (½)Pl + B.

Where P is the base perimeter, l is the slant height and B is the base area.

Here, the base is square-shaped.

Now, let the slant height be x.

A = (1/2)(4 × 6) (x) + (6)²

156 = 12x + 36

12x = 156 - 36

12x = 120

x = 10 feet.

Therefore, the required height is 10 feet.

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At the beginning of an experiment, there are 400 grams of contaminants. Each hour, three-fourths of the contaminants are filtered out.


Use the model to calculate the number of contaminants after the third hour of the experiment.

the answer is not 168.75 cause that is how much filtered/went away. I need to know how much is left after it was filtered.

Answers

Answer:

18.75

Step-by-step explanation:

first hour: 400×(1/4) = 100

second hour: 100×(1/4) = 25

third hour: 25×(1/4) = 18.75

but i have to give credit to the first answerer, this is not my answer, though i know how to do it i dont know how to explain it properly.

find area round to nearest hundredth

Answers

Answer:

area = 693

Step-by-step explanation:

The area of a quadrilateral can be found using the formula; base * height

It is given that the height is 33, the base is 21;

Multiply the two

21 *33 = 693

What is the value of x?
PLZ HELP ME< DON'T UNDERSTAND!!!!!!!!!!


Enter your answer in the box.

x = ?

A right triangle with vertices labeled as A, B, and C. Side C B is the base, and the top vertex is A. Side A B contains a midpoint D. A line segment drawn from C to D bisects angle A C B into two parts labeled as A C D and B C D. Angles A C D and B C D are marked with single arc. Side A C is labeled as 3. Base C B is labeled as 4. Segment A D is labeled as 2.25. Segment B D is labeled x.

Answers

Use triangle bisect or theorem.

Set up proportion:

X/ 2.25 = 4/3

Cross multiply:

3x = (4 x 2.25)

3x = 9

Divide both sides by 3:

X = 3

Jacob went on a fishing trip. This year he caught 30 fish, which is six more than twice the number he caught last year. How many fish did Jacob catch last year?

Answers

Answer:

12 fish

Step-by-step explanation:

You need to work this problem backwards. If he caught 30 fish, which was six more than twice the number he caught last year, you would start by subtracting six, leaving you with 24. Then you'd have to divide by 2, because it was twice plus six as many fish, which would give you 12 fish.

[tex]\frac{30-6}{2}[/tex] = x

[tex]\frac{24}{2}[/tex] = x

12 = x

Easy!
I’ll mark as ✨brainliest✨
Very easy.

Answers

The number of planes in a year will be 219000 planes.

How to calculate the value in a year?

Rate demonstrates how many times one number can fit into another number. Rate contrast two numbers by ordinarily dividing them. A/B will be the formula if one is comparing one data point (A) to another data point (B).

Here, 150 planes arrive in 6 hours. The number of planes in a day which is 24 hours will be:

= 150 × (24/6)

= 600 planes.

The planes in a year will be:

= 600 × 365

= 219000 planes.

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Which equation represents this situation? y = 1.25x ) Which graph represents the situation? ​

Answers

I also agree that the answers is the second one have a beautiful day:)

The second graph represents the situation y=1.25x which has slope 1.25.

What is Slope of Line?

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is

m=y₂-y₁/x₂-x₁

The given equation is y= 1.25x

Slope is 1.25

Now let us plug in (1, 1.25) in the equation

1.25=1.25(1)

Hence, the second graph represents the situation y=1.25x which has slope 1.25.

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the first term of a geometric series is 124. The sum to infinity is 64 . Find the common ratio​

Answers

9514 1404 393

Answer:

  -15/16  

Step-by-step explanation:

The sum of a geometric series with first term a1 is ...

  S = a1/(1 -r)

Then the common ratio (r) is ...

  r = 1 -a1/S

For the given values, the ratio is ...

  r = 1 - 124/64 = -15/16

The common ratio is -15/16.

The function c ( x ) = 63 ⋅ ( 1.03 ) x models the cost in dollars, c , of 1 ounce of a certain chemical used in a laboratory. x represents the number of years since 1990.

Does the cost of the chemical increase or decrease with time?

Group of answer choices

Increase

Decrease

Answers

9514 1404 393

Answer:

  increase

Step-by-step explanation:

Your cost function appears to be an exponential function of the form ...

  c(x) = (initial cost)·(growth factor)^x

When the growth factor (1.03) is greater than 1, it means the exponential function is increasing with x (time).

The cost function increases with time.

Complete the mapping of the vertices of ΔDEF.

D(2, –4) → D'
E(1, –1) → E'
F(5, 1) → F'
What is the rule that describes a reflection across the line y = x?

rx = y(x, y) →

Answers

Answer:

D  I think

Step-by-step explanation:

GH=5  5; <H = 90  

1. The mapping of the vertices of ΔDEF will be;

D(2, –4) → D' (-4, 2)

E(1, –1) → E' (-1 , 1)

F(5, 1) → F' (1, 5)

2. The rule of the reflection across the line y = x is;

[tex]r_{x} = _{y} (x , y)[/tex] → [tex]r_{y} = _{x} (y , x)[/tex]

What is Refection?

Reflection is a type of transformation that flip a shape in mirror line, so that each point is the same distance from the mirror line as its reflected point.

Given that;

The coordinates are,

D = (2, –4)

E = (1, –1)

F = (5, 1)

Now,

By the given image,

The mapping of the vertices of ΔDEF is;

D(2, –4) → D' (-4, 2)

E(1, –1) → E' (-1 , 1)

F(5, 1) → F' (1, 5)

And, The rule of the reflection across the line y = x is;

[tex]r_{x} = _{y} (x , y)[/tex] → [tex]r_{y} = _{x} (y , x)[/tex]

Because in the image its shows the line of reflection.

Therefore,

1. The mapping of the vertices of ΔDEF will be;

D(2, –4) → D' (-4, 2)

E(1, –1) → E' (-1 , 1)

F(5, 1) → F' (1, 5)

2. The rule of the reflection across the line y = x is;

[tex]r_{x} = _{y} (x , y)[/tex] → [tex]r_{y} = _{x} (y , x)[/tex]

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-39<5x+36 step by step explanation

Answers

Answer:

x > -25.

Step-by-step explanation:

-39 < 5x + 36

Subtract 36 from both sides:

-39 - 36 < 5x + 36 - 36

-75 < 5x

5x > -75

Divide both sides by 5:

x > -25.

HELPPPPPP
Are these pairs a function WHY/WHY NO
(0,3)
(1,6)
(2,12)
(3,24)
(4,48)
(5,96)

Answers

Answer:

Step-by-step explanation:

Yes these pairs are a function because no two numbers are the same in any of the (x,y) pairs

What is the area of the figure?
6 m
6 m

Answers

Answer: 36

Step-by-step explanation:

h x l = a

h=6

l=6

6 x 6 = 36

the area of the figure is 36

For 25 points:
x + 5 = 10
2x + ? = 20
Answer for "?"

Answers

Answer:

x= 5

?=10

Step-by-step explanation:

Mark me Brainliest Pls

How many total possible outcomes are there in the sample when you are flipping 3 coins: a penny, a nickel, and a dime?
O4
O 6
08

Answers

8 because when you flip one coin there is 2 outcomes: heads and tails. Therefore if you flip 3 of them it is 2*2*2=8

What is the slope for this equation in linear function y=2/3x-2

Answers

Answer:

2/3

Step-by-step explanation:

y=mx+b where m=slope and b=y-intercept.

One of the sisters decides that she isn't feeling well. She only wants a sprite and volunteers the remaining money to the others. How much do the other four sisters have to spend? There are 4 sisters each have $10.00

Answers

Answer:

First of all. On that page, theres 5 sisters. Gabby is included. so not 4, 5.

Step-by-step explanation:

Factor the quadratic expression.

3x2 − 8x + 4

Answers

Answer:

(3x - 2) (x - 2)

Step-by-step explanation:

im smart

First multiply 3 and 4 to get 12. Now, we must get two numbers that multiply to 12, but also add to -8. The answer is -6 and 2.

Now rewrite this expression as “3x^2-6x+2x+4.

Now, group together each set of two terms and find the GCF of each. The GCF of 3x^2 and -6x is -3x. The GCF of 2x and 4 is 2.

Now, divide each group by the GCFs and place them next to each other. You should get -3x(x+2)+2(x+2). We know this is correct because the parentheses match.

Now, rewrite the duplicate factors as one, and group together what is outside the parentheses. The final answer is...

(-3x+2)(x+2).

To check, you can double distribute (FOIL) to see if it matches the original expression.

save bob's grandma by helping people with their math :>

Answers

Answer:

15

Step-by-step explanation:

9, 10, 11, 12, 13, 14, 15, 16

Hope that helps!

I get 17 hope this helps

Can someone please help me with this?
Thank you! :)

Answers

Answer:

Nah that sounds like a you problem

Step-by-step explanation:

Answer:

my guess is 3/2x+65/3 or 2/3c

PQ=RQ what does b =

Answers

...... ....as i said,b = 17

Find all angles, 0° of a degree.
tan^2 theta - 6tan theta + 5 = 0
(can you PLEASE explain how to do this in simple terms I can’t find a helpful video lol)

Answers

x = 0.7554, 1.3734, 3.927, and 4.515 Try That And See.

A triangle has sides with eng sof 4 meters, 5 meters, and 7 meters.
Is it a right triangle?

Answers

Answer:

no

Step-by-step explanation:

a right triangle will have the same length on all sides

Sorry I don’t know how about going to my comment and comment ur answer

Round 59.378 to the nearest hundredth.

Answers

Answer:

59.38

Step-by-step explanation:

In the number 59.378, "7" is in the hundredth place. So, we need to round it according to the 7. Anything to the left of 7 doesn't need to be rounded. If we round the thousandths place, 8, up to 7, we get 59.38

59.378 rounded to the nearest hundredth would be 59.38
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