Mathematics High School

Can someone explain this step by step please

Answers

Answer 1

Answer:

Step-by-step explanation:

Since x=-2

-2+3y=4

Add 2 on both sides

3y=6

Divide 3 on both sides

y=2

Answer 2

Answer:

x is equal to -2

the equation is x + 3y = 4

so we substitute the value of 'x' which is -2 in equation x + 3 = 4

Step-by-step explanation:

then we move 3y on left side.

then we add 4 + 2 which is 6.

then it will be, y = 6/3

which is 2

therefore we get y = 2

hope this helps you ☺️☺️

Related Questions

I NEED HELP WITH THIS!!!

Answers

Answer:

they all are correct

Step-by-step explanation:

What ia the Lcm of 99 and 24

Answers

Step-by-step explanation:

792

........

.......

........

...

The LCM of 24 and 99 is 794

PLEASE HELP ME ANSWER!

Answers

Answer:

dsg

Step-by-step explanation:

srg

Answer:

x= 110

Step-by-step explanation:

vertical angles

set up :

6x + 115 = 7x +5 (subtract 6x from both sides)

115 = x +5 (subtract 5 from both sides)

110 = x (your answer)

CHECK:

6(110) + 115 = 775

7(110) + 5 = 775

You are given that cos(A)=−45, with A in Quadrant III, and cos(B)=15/17, with B in Quadrant I. Find cos(A+B). Give your answer as a fraction.

Answers

Answer:

con you be more organized on how you post the question will answer if fixed

Step-by-step explanation:

The line segment shown is translated down 4 units, what are the new coordinates of B?
(0.3)

Answers

Answer:

(0, - 1 )

Step-by-step explanation:

A translation down means subtracting 4 from the y- coordinate of the point, that is

B(0, 3 ) → B'(0, 3 - 4 ) → B'(0, - 1 )

Select ALL the right triangles, given the
lengths of the sides

Answers

The right triangles are A and E

how to solve 9x-5-(-6x)

Answers

Answer: 3x-5

Step-by-step explanation:

9x-5(-6x)

9x-5-6x

3x-5

Answer:

15x - 5

Step-by-step explanation:

We have the equation 9x - 5 - (-6x) and are asked to solve it.

We cannot combine 9x and 5 because they have a variable difference, with 9 having x as its variable and 5 having no variable. What we can do is distribute the minus sign to the right of 5 to (-6x), lets do as said :

9x - 5 - (-6x)

Two negatives make a positive, therefore :

9x - 5 + 6x

Since 9x and 6x have the same variable ending, we can combine them, do as followed :

9x - 5 + 6x

9x + 6x

15x - 5

Solve the following system of equations algebraically:
y=x^2-3x+10
y=x+10

Answers

good luckkkkkkkkkkkk

Hope this helps
Answer:
(0,10) , (4,14)

What is the slant height x of the square pyramid?

The figure shows a square pyramid. The slant height is shown as a dashed line perpendicular to the base edge and is labeled as x. The length of half of the base edge is 3 meters. The lateral edge makes a 30 degree angle with the lateral height.

Enter your answer in the box. Express your answer in radical form.

x =
m

Answers

c=872x
m is A
Explanation:

y+-16=70

please help

Answers

Answer:

[tex]y + - 16 = 70 \\ y = 70 + 16 \\ y = 86[/tex]

Hope it helps!!

A bag of candy contains 5 different types of colored candies; red, green, blue, yellow, and orange. According to the manufacturer, bags should contain an equal number of each color. Students in a statistics class decided to use a chi-square procedure to test the manufacturer’s claim. They opened a bag of candy and recorded the number of candies of each color. The results are shown in the following table.
Red Green Blue Yellow Orange
17 24 20 25 14
Which color contributes most to the chi-square test statistic?

Answers

Answer:

Orange

Step-by-step explanation:

just took the test

The color which contributes most to the chi-square test statistic for the bag of candy is orange color.

What is Chi-square test?

Chi-square test is the statistical test, which is used to examine, the difference between the expected frequency and the observed frequency.

[tex]x^2=\dfrac{(o_i-E_i)^2}{E_i}[/tex]

A bag of candy contains 5 different types of colored candies; red, green, blue, yellow, and orange. Students in a statistics class decided to use a chi-square procedure to test the manufacturer’s claim.

They opened a bag of candy and recorded the number of candies of each color. The results are shown in the following table-

Red Green Blue Yellow Orange

17 24 20 25 14

The average of the all the values is 20.

Now, according to the manufacturer, bags should contain an equal number of each color. Thus, the expected value for the bag of candy are,

Red Green Blue Yellow Orange

20 20 20 20 20

Form, the above formula the color which has less values of observed, and more value of expected, contributes most to the chi-square test statistic.

Here, the orange color has the less value of observed frequency. Therefore, the color which contributes most to the chi-square test statistic for the bag of candy is orange color.

Learn more about the chi-square test here;

https://brainly.com/question/4543358

How many restaurants have a excellent rating that seat over 100. A) 182 , B) 159, C)180 OR D) 311

Answers

Answer: I don't know if this is possible to solve https://youtu.be/dQw4w9WgXcQ

Step-by-step explanation:

help me please lol i don’t understand this

Answers

Answer:

a-88 degrees give me brainiest

your friend decides to toast a piece of bread, but leaves it in the toaster too long. the bread is black and the kitchen is full of smoke.
is the change chemical or physical. and give evidence

Answers

Answer:

Chemical because there is a change in color and the smoke is a change of substance.

Step-by-step explanation:

Answer:

Chemical.

Explanation:

So, before the bread was the normal color like all breads are, but then the bread was in the toaster for way to long. It started to turn black. Therefore, the change of color would be a chemical change.

Also this is the wrong subject. I'm pretty sure it's supposed to be Biology.

Please answer, no jokes or fakes or report

Answers

Answer:

375.2887 ft is the answer

Answer:

375.3 ft

Step-by-step explanation:

What we need to do first is divide 175 by the sine of 25°.

175/sin(25°)

175/0.422618

175/1 * 500000/211309

25/1 * 500000/30187

12500000/30187

414.085534 = length of hypotenuse.

Now, find the square root of the difference between c² & a².

b = √414.09² - 175²

b = √171470.528 - 30625

b = √140845.528

b = 375.293922

b ≈ 375.3

The horizontal distance between the technician and the base of the telephone pole is 375.3 ft.

(100 points) Give a step by step explanation on how you solved this problem

y = 3x + 3
y = x − 1

Answers

Use substitution
Given both y values, you know that they have to be equal

3x + 3 = x - 1
2x + 3 = -1
2x = -4, divide by 2
x = -2
Now plug x value into any of the equation to find y value
y = 3(-2) + 3
y = -6 + 3, y = -3

Solution: x = -2, y = -3

Answer:

Step-by-step explanation:

Well you have to solve for X to find Y simplified.

Since both equations equal Y you can plug them together

3x+3=x-1

-x -x

2x+3=-1

-3 -3

2x=-4

Divide -4 by 2 and you get X = -2 then plug X into both equations and boom

y= -3

QUICKKKKKKKKKK I NEED THIS ANSWER
IF WRONG REPORTED

Answers

Answer:

Step-by-step explanation:

2/3 - 3/2y + 1/3y + 4 = 0

Answers

Answer:

y = 4

Step-by-step explanation:

(2/3 + 4) + (-3/2y + 1/3y) = 0

(-3/2y + 1/3y) = -4 2/3

-9/6y + 2/6y = -14/3

-7/6y = -14/3

cross-multiply:

-21y = -84

y = 4

Answer:

y = 4

Step-by-step explanation:

Please use parentheses for clarity, remembering what big differences they make in expression values.

I will assume that your "2/3 - 3/2y + 1/3y + 4 = 0" actually means

2/3 - (3/2)y + (1/3)y + 4 = 0

The LCD here is 6, which is the product of the denominators 2 and 3.

Then your "2/3 - 3/2y + 1/3y + 4 = 0" becomes:

4 - 9y + 2y + 24 = 0, which simplifies to:

28 - 7y = 0. Solving this, we get y = 4

Pls help fast pls don't leave a non link

Answers

Answer:

Step-by-step explanation:

The triangles shown below must be congruent. Help please

Answers

True is the correct answer

What is the median value of the data set shown on the line plot?

Enter your answer in the box.

Answers

The median would be 32 due to the xs because you must count 2 to the right every time

Answer:

Its actually 30

Step-by-step explanation:

What’s the answer no work needed
Given f (x) = 5x2 and g(x) = 2x + 3, find f(g(-4))

Answers

Answer:

125

Step-by-step explanation:

Given

f(x) = 5x²

g(x) = 2x + 3

Now

g(-4) = 2 * (- 4) + 3

= - 8 + 3

= - 5

Also

f(g(-4)) = f( -5)

= 5 * ( -5)²

= 5 * 25

= 125

Mount McKinley, in Alaska, is about 3.848 miles high. If a mountain climber can climb 0.25 miles per day, about how long to the nearest day, would it take to climb Mount McKinley?

Answers

Answer:

About 16 days.

Step-by-step explanation:

The mountain is 3.848 miles high and you climb 0.25 miles a day. So you have to divide 3.848 by 0.25 and you get 15.392. But since you have to round it to the nearest day, you round it up to 16 because if you round down to 15 you still have 0.392 of a day leftover.

Which function decreases faster please help

Answers

Answer:

Step-by-step explanation:

PLS HELP ME WITH 7 AND 6 PLSLSLSLSLS PLS PLS I BEG U PLS

Answers

Answer: 7= D, 26 units

Step-by-step explanation:

Take the length. 0,0 to 0,9 the length is 9 Next take the width 0,9 to 4,9 the width is 4 L+Wx2 13x2=26

Question 1
Construct two expressions that are equivalent to 27x^12.

I’m in a test need an answer ASAP please

Answers

One example is (3x^4)^3 and another is (3x^6)(9x^6)

Can someone help me with this

Answers

Answer:

I believe it is 30 toy planes

Hope this helps.

Step-by-step explanation:

toy cars - 2 = 12

toy planes - 5 = 30

total - 7 = 42

A 12 feet tall street light is making an 18 feet shadow at the same time in nearby building is making a 72 feet shadow

Answers

Answer: 48 ft

Step-by-step explanation:

Given

Height of street light h=12 ft

length of shadow x=18 ft

Shadow length of building x'=72 ft

suppose the height of the building is y

from the figure, we can write

[tex]\Rightarrow \tan p=\dfrac{h}{x}=\dfrac{12}{18}\\\\\Rightarrow \tan p=\dfrac{y}{x'}=\dfrac{12}{18}\\\\\Rightarrow y=72\times \dfrac{2}{3}=48\ ft[/tex]

. How many minutes is it from 23:35 today to 01:15 tomorrow?
A 100
B 110
C 120
D 130
E 140

Answers

Answer:

A (100)

Step-by-step explanation:

If 2 hours pass starting at 23:35 today, then tomorrow the time will be 1:35. The difference between 1:35 and 1:15 is 20 (minutes) Because there are 120 minutes in 2 hours (60 minutes per hour), This means we do 120 minutes minus 20 minutes. This gives us an answer is A, 100 :)

Use the distributive property with factoring to find the equivalent expression. 24n + 32w = (3n + w)

Answers

Answer:

Step-by-step explanation:

24n + 32w = (3n + w)

We're asked to use distributive property, this means that we have to find a way that the given expression on the left hand side is equal to the given incomplete exresssion on the right hand side. In so doing, we're fulfilling the distributive property tag.

Given 3n, 3 factorises 24 into 8, and at the same time, factorises 32 into 4. Thus, we can then conclude that

24n + 32w = 8(3n + 4w)

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