Mathematics High School

pls help me and show world pls :)

Answers

Answer 1

Answer:

add equation 2 from equation 3

Step-by-step explanation:

So, we are given equations 1, 2, and 3, but for this problem, we need to use just 2 and 3.

4x - 2y = -16

x + 2y = 6

In order to eliminate one variable, then we need to find whether there are two numbers that have the same coefficient (or multiply one by a number to make it) so that if you add/subtract two numbers, it gives you 0. So, in this problem, if you add

2y to -2y, then it gives you 0, which means that y would be canceled out.

So, the answer is the first option.

Feel free to ask any questions about clarity! (this explanation is pretty bad, but I can explain it more if you want) :D

Related Questions

PLEASE HELP

The graph of y = f(x) is shown below. What are all of the real solutions of
f(x) = o?

Answers

Answer:

The real solutions are : -6, -3 and 2

Step-by-step explanation:

The solutions of a functions are the input values at an output zero

Graphical wise, this can be represented by the order pairs (x, 0)

In other words, these are the points that lie on the x-axis

Examining the given graph, we can see that the points lying on the x-axis are:

(-6, 0), (-3, 0) and (2, 0)

This means that:

The real solutions of the function are:

-6, -3 and 2

Hope this helps :)

15 ejercicios de peróxidos tomando en cuenta su formulación y nomenclatura

Answers

Answer:

1) Av2O2 N.Stook: peróxido de oro (I) N.Sistemática: dióxido de dioro N.Tradicional: perioxido auroso

Find the surface area of the prism.
3 cm
9 cm
6 cm
The surface area is
square centimeters.
7
need asap

Answers

Answer:

198

Step-by-step explanation:

rectangular side (9,3)

9x3=27

27x2= 54 (because there's rectangular sides)

Square end(6,3)

6x3=18

18x2=36(two square sides)

top&bottom sides

6x9=54

54xsquared2=108(two sides)

add all together

54+36+108=198cm(squared)

198

This is the answer

Help me pleaseeeeeee

Answers

Answer:

Step-by-step explanation:

Answer:

i think it is 56 if it is wut i think it is

Step-by-step explanation:

Anyone know the answers to any of these questions? Please if u do help me out I’m stuck lol it’s due tomorrow and I don’t wanna get detention for it someoneeee??... anyoneeee...

Answers

Question 3 is 12:2 because if you divided 108 by 9 you get 12 and 18 by 9 you get 2

17+(8-5)x5 plz tell me how to do it by the formula BODMAS

Answers

Answer:

Step-by-step explanation:

17+(8-5)x5

17+3×5

17+15

Answer:

255

Step-by-step explanation:

B stands for brackets

O stands for order

D stands for devision

M stands for multiplication

A stands for addition

S stands for subtraction

If you follow it in the right order then you will find your answer so just follow it in the right order...

Complete a function table from an equation
Complete the table.

Answers

The answers are 8,2,-4,-10

A string reaches from the top of a 17-foot pole to a point 13 feet from the base of the pole. To the nearest tenth of a foot, how long is the string?

Answers

Answer:

21.4 feets

Step-by-step explanation:

Using Pythagoras rule :

The length of the string:

Hypotenus = sqrt(opposite² + adjacent²)

Length of string = sqrt(17² + 13²)

Length = sqrt(289 + 169)

Length of string = sqrt(458)

Length of string = 21.400

Length = 21.4 feets

Find the value for m
-10 + 59 = 5m = 7 + 3m

Answers

-10+59=5m=7+3m
-49= 5m=7+3m
5m=56+3m
2m=56
m=28

First three terms of n^2+40
How many terms in the sequence are less than 100?

Answers

Answer:

Step-by-step explanation:

If N= 1, 2, 3, 4, 5, 6, or 7, the equation is still less than 100.

A car is 160 inches long.

A truck is 10% longer than the car.

How long is the truck?

Answers

Answer:

im pretty sure its 170 inches long

Step-by-step explanation:

Answer:

176 Inches long.

Step-by-step explanation:

160 multiplied by .1 gets you 10% then add 160 to 16 to get 176.

It takes Jason 30 minutes to wash the dishes, but it takes 50 minutes for his younger brother. How many minutes will it take to wash the dishes if they work together? Round your answer to the nearest hundredth if necessary.

Answers

At the 2 together and then divide by 2 to find the average (40)

HELP DUE IN 10 MINS!

The lighthouse is ?? feet above the water.

Answers

Answer:

Use tangent:

BL/BS = tan Sx / 144 = tan 25°x = 144 tan 25°x = 67 ft (rounded)

Find the radius of a circle with a diameter of 16

Answers

Answer: R = 8

Step-by-step explanation:

The Radius is R = 8. Give me Brainiest PLZZZ!!!

Answer:8 maybe?????

Step-by-step explanation:

What is the decimal equivalent of 13/4?

Answers

Answer:

3.25

hope this helped!!

Answer:

3.25

Step-by-step explanation:

13 / 4 is an improper fraction . when you divide 13 by 4 you get 3.25

i need the area, it is the area if composite fugures! ASAP!!

Answers

3+12+8=23
I broke it up to 2 squares and a triangle

The area of a rhombus is 60 cm one diagonal is 10cm other dignonl is

Answers

Answer: 12 cm

Explanation: The other diagonal is 12 cm as I calculated.

Evaluate.0.2 power of 4 =

Answers

Answer:

0.0016

Step-by-step explanation:

The expression 0.2 by the power of 4 when evaluated has a value of 0.0016

How to evaluate the expression

From the question, we have the following parameters that can be used in our computation:

0.2 by the power of 4

Express as an equation

So, we have

0.2 by the power of 4 = 0.2⁴

When expanded, we have

0.2 by the power of 4 = 0.2 * 0.2 * 0.2 * 0.2

Evaluate the products

This gives

0.2 by the power of 4 = 0.0016

Hence, the solution is 0.0016

Answers

Answer:

Won't it just be 60, because it's an equilateral triangle.

Step-by-step explanation:

60 + 60 = 120

180 - 120 = 60

11x - 6 = 60

11x = 66

x = 66/11

x = 6

Let's substitute.

11(6) - 6 = 66 - 6 = 60

write a word porblem that could be solved with the equation x - 3/4 = 6 3/4

ANSWER ASAP CORRECT ANSWER WILL GET BRAINLIEST!!

Answers

Answer:

use ph0t03ath or m4th3ay

State of the triangles in each pair are similar. If so, state how you know they are similar and complete the similarity statement.

Answers

Answer:

SSS, UVD, the answer is D

Step-by-step explanation:

90/9 = 10

70/7 = 10

80/8 = 10

triangle LMN congruent triangle UVD

what’s the domain and range of this graph?

Answers

Answer:domain: (−∞,∞)

range: [−9,∞)

Step-by-step explanation:

What is the best measure of center for this data?

{101, 2, 108, 104, 102, 107, 109, 102}
Question 5 options:

A. mean or median because there is no outlier

B. median because there is an outlier

C. mean because there is an outlier

D. mode because there is an outlier

Answers

Answer:

The answer is A

Becaise Mode is not a measure of centre, and Mean is dramatically changed with the outli

I think that would be correct, Hope it helps!!!

What is the coefficient of the second term in this expression? 4k+ 3n+ 9

Answers

the answer is 3 hahahahahah

Jessie spent a total of 14.00 to purchase a gift and have it gift-wrapped and mailed. The cost for the postage was $2.25, and she knows the gift itself cost $9.50.

Answers

Answer:

she spent 11.75$ total

Step-by-step explanation:

9.50+2.25=11.75

What are the domain and range of the function defined by the set of ordered pairs below? {(3, -4), (-1, 4), (-2, 6), (1, 0)}

Answers

Answer:

Domain: {-2, -1, 1, 3}

Range: {-4, 0, 4, 6}

Step-by-step explanation:

The domain is the set containing all x-coordinates.

Domain: {-2, -1, 1, 3}

The range is the set containing all y-coordinates.

Range: {-4, 0, 4, 6}

Answer:

Domain: {-2, -1, 1, 3}

Range: {-4, 0, 4, 6}

The answer is C
---------------------------

Use the formula A = 6s2 to find the surface area of a cube
with sides of length s = 1.5 meters.

Answers

Answer:

[tex]\Large \boxed{\sf 13.5 \ m^2}[/tex]

Step-by-step explanation:

Use formula and substitute s = 1.5

[tex]A=6 \times 1.5^2[/tex]

[tex]A=13.5[/tex]

Two triangles are similar. The corresponding sides have a ratio of 2:5. If the larger triangle has a side length of 55 centimeters, what is the measurement of the corresponding side of the smaller triangle?
A.33 cm
B. 22
C.27
D.19cm

Answers

B (22cm)

2:5
55/5 = 11
11 * 2 = 22

can i plz have some help

Answers

Answer:

18.84

Step-by-step explanation:

The formula for circumference is 2*pi*r

So,

2*3.14*3

which equals,

18.84

The library wants to display all the books on shelves in rows.
Each row has the same number of books and the same type
of books. How many books could be in each row? Explain
how you found your answer.

Answers

Answer:

4 books

Step-by-step explanation:

the three numbers can divisible by 4

Hope this right.But if it's not,im so sorry..Have a nice day

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