Mathematics College

please help me . I need it asap .​

Please Help Me . I Need It Asap .

Answers

Answer 1

Answer:

x=10, y=-1

Step-by-step explanation:

Multiply both sides of the top equation by 2 to get 2x-2y=22

subtract the two equations

2x-2y=22

2x+y=19

-3y=3

y=-1

plug the -1 in any of the two equations (I'll do the second one)

2x-1=19

2x=20

x=10

x=10, y=-1

Related Questions

help with area of the triangle ​

Answers

Answer:

100.8 cm squared

Step-by-step explanation:

a right triangle is half a rectangle so multiply base x height then divide by 2

12.6x16=201.6

201.6/2=100.8

Answer:

105.84

Step-by-step explanation:

Multiply the height of the triangle (in this case 12.6) by the base (16.8) then divide by 2.

Circle each number below which is greater than its square.
(i) 1
(ii) 2/3
(iii) -3
(iv) −1/2
(v) 5/4

Answers

Answer:

- ke sab

ie two four

Step-by-step explanation:

hope it heps

ii

1 squared=1, which is the same number

2/3 squared equals 4/9. 2/3=6/9. 6/9 is greater than 4/9

-3 squared equals 9. Nine is greater than -3

-1/2 squared is 1/4. -1/2=-2/4. 1/4 is greater than -2/4

5/4 squared is 25/16. 5/4=20/16. 25/16 is greater than 20/16

Hope this helps!

Write a positive or negative integer that represents the situation.

The temperature falls 14 degrees.

An integer that represents the situation is what?

Answers

Answer:

im not sure sorry! lol

Step-by-step explanation:

sorry!

If a computer salesperson sells at least 15 computers in a week then she gets a bonus. She sells 12 computers in a week. Conclusion: Mandy gets a bonus:
a. not valid
b. valid
c. valid for only females
d. valid for only males

Answers

Answer:

a. not valid

Step-by-step explanation:

She only sold 12 in a week so she does not get a bonus, as she needs to sell at least 15 computers.

A dartboard has a circumference of 26pi in. Calculate the total are on which the dart may land?
Use 3.14
hint is not 53.81​

Answers

Answer:

[tex]A=530.66\ in^2[/tex]

Step-by-step explanation:

The circumference of a dartboard, C = 26pi inches

We need to find the area on which the dart may land.

The circumference of a circle is given by :

C = 2πr

Where

r is the radius of the dartboard

[tex]r=\dfrac{C}{2\pi}\\\\r=\dfrac{26\pi}{2\pi}\\\\r=13\ in[/tex]

Now, the area of a circle is given by :

[tex]A=\pi r^2\\\\=3.14\times (13)^2\\\\A=530.66\ in^2[/tex]

so, the required area is [tex]530.66\ in^2[/tex].

Think about how you can use the diagram to figure out the statement of the Pythagorean Theorem

Answers

Answer:

Step-by-step explanation:

Remark

There are many ways you can do this. You could, for example, prove this by using just one diagram and do the algebra for that one diagram. Or you could use both diagrams and equate them. I'll do the latter.

Left Diagram

c^2 + the 4 small triangles surrounding c^2 gives

c^2 + 4 * (1/2 * a * b)

Right Diagram

2 * a * b + a^2 + b^2

By the symmetry of the situation, you can find the area of the figures in each diagram. Since a in the left is equal to a on the right, and since b on the left = b on the right, the areas are equal.

Solution

c^2 + 4(1/2 a*b)  = 2 * a * b + a^2 + b^2

c^2 + 2*a*b = 2* a * b + a^2 + b^2

c^2 = a^2 + b^2  

Notice that the 2ab on the left cancels out with the 2ab on the right.

if the circumference of the circle below is 72 what is the length of AB (the minor arc)

Answers

Answer:

2πr=72

=2*22/7*r=72

=r=72*7/44=504/44=252/22=126/11=11.45

=πr theta /180=22/7*11.45*60/180

=11.99=12(approx)

answer is (a) 12

The Answer is 12 ......

write the expression as a square of a binomial: 9/25a^6b^2-a^4b^4+25/36a^2b^6

Answers

answer below,

Hope this helps :>From Cambridgeplease give brainliest!

g(1) = 5
0
g(n) = -1.g(n-1) - 4
= -
g(2) =

Answers

Answer:

g

Step-by-step explanation:

Answer:

-9

Step-by-step explanation:

Khan <3

Insert 4 geometric means between 6
and 92​

Answers

Answer:

6    23.2    40.4     57.6    74.8      92

Step-by-step explanation:

92-6 = 86

86/5 spaces = 17.2 each

solve for x -3x+6=2x-24

Answers

Answer:

7.5 or 15/2

Step-by-step explanation:

x-3x+6=2x-24 -- Combine like terms

-2x+6=2x-24 -- Add 2x to each side

6 = 4x-24 -- add 24 to each side

30 = 4x -- divide by 4

15/2 or 7.5 = x

Which two expressions are equivalent?
A. (14 – 8) x and 14 – (8 x)
B. 14 – (8 x) and 14 – (x 8)
C. (8 – 14) x and 14 – 8 x
D. (8 – 14) and (14 – 8)

Answers

Answer:

6

Step-by-step explanation:

Answer easy ypu just subtract i am not the best at this so dont take my word for it lol

Find the length of the third side. If necessary, round to the nearest tenth.
24
14

Answers

Answer:

The answer is 19.49

Step-by-step explanation:

Hope this help you

Answer:

19.5

Step-by-step explanation:

19.49= 19.5

because of the nearest tenth

Find the missing side lengths. Leave your answers as radicals in simplest form. ILL GIVE BRAINLIEST

Answers

Pls go for option number 3

is −5+(2.5+3 1/5)⋅4.25 equivalent to −5+(5.7)⋅4.25 yes or no?

Answers

Answer: sorry need points to ask a question hope u understand

Step-by-step explanation:

HELPPPPPPP PLEASE I AM MARK YOU BRILL !!!!!
PLEASEEEEEEE

Answers

Answer= 6y, 7x

Hope that helps

(4n^2-2n+5) +(4n^4-4n-6) ​

Answers

Answer:

4n^4 + 4n^2 - 6n - 1

Step-by-step explanation:

Someone please help me answer this

Answers

Answer:

2^10

Step-by-step explanation:

When multipying indices, if the base is the same then just add the indices.

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

sqrt 11^4

Answers

Answer:

121

Step-by-step explanation:

Answer:

121

Step-by-step explanation:

sqrt(11^4)

11^2

121

Hope this helps :)

The weston family spends a maximum of $50.00 per month on entertainment. Write and graph an inequality to represent this.​

Answers

Answer:

Step-by-step explanation:no more than

I need to know about the same time as the first time in the world of the most important thing is that the only one of the​

Answers

Answer:

?

Step-by-step explanation:

What did you Ssayyy? Umm yeah so the text kinda cut off at the end, looks like you were clicking the middle button on ur keyboard

Divide using long division.
8x3 - 18x2 + 21x - 20 = 2x - 3

Answers

Answer:

[tex] \frac{29}{19} [/tex]

Step-by-step explanation:

Hopefully that is correcr

what is the quotient of 1/6 and 2/9​

Answers

Ur answer would be: 3/4. In decimal form it would be 0.75.

Answer:

3/4

Step-by-step explanation:

what is the value of x in the figure?​

Answers

Answer:

x = 9

Step-by-step explanation:

We know that the angles are equal.

105 = 12x - 3

108 = 12x

9 = x

x = 9

Answer:

12x-3=105 vertically opposite angle

12x=105+3

x=108/12=9 is your answer

HELP PLZ I NEED IT TONIGHT

Answers

Answer:

it y= - 8x

Step-by-step explanation:

which of the following equations does the graph show below pls help l give u the branliest answer or wtvr

Answers

Answer:

x - 5y = 5

Step-by-step explanation:

Let's represent the equation of the graph in slope-intercept form, y = mx + b.

We'd need to find slope (m) and y-intercept (b) of the graph.

Slope (m) = ∆y/∆x

Using two points on the line, (0, -1) and (5, 0),

Slope (m) = (0 - (-1)) / (5 - 0) = 1/5

m = ⅕

y-intercept (b) is the point on the y-axis where the line intercepts the y-axis = -1

Therefore, b = -1

To write the equation, substitute m = ⅕ and b = -1 into y = mx + b

Thus:

y = ⅕(x) + (-1)

y = ⅕(x) - 1

Rewrite in standard form:

-⅕x + y = -1

Multiply both sides by -5

-⅕x*-5 + y*-5 = -1*-5

x - 5y = 5

18) Three angles of a quadrilateral are 650,100°,85°. Find the measure of
fourth angle with steps​

Answers

Answer:

The measures of the three angles of a quadrilateral are 65, ... The measure of the fourth angle is 1 point 65 75 85 135

Use pic for more info thx

Answers

Answer:

D:86

Step-by-step explanation:

all three triangle sides always equal 180, so first you find the missing side. As you can see the angle you are finding is complementary to the missing side so its just the 180 minus the first answer.

The answer is D, I had this question on a test before and I got it correct


The weight of the load varies
directly with the number of boxes
in the load. A load of 18 boxes
weighs 600 lbs. What does a load
of 12 boxes weigh?

Answers

The weight varies directly with the number of boxes, so this means every box weighs the same amount.

Find the weight of a box by dividing the known weight by the number of boxes:

600 pounds / 16 boxes = 37.5 pounds per box.

Now multiply the weight per box by the number of boxes:

37.5 pounds x 12 boxes = 450 pounds

12 boxes weigh 450 pounds

The two triangles shown are congruent: ΔFHG ≅ ΔJKL. Based on this information, which of the following is a true statement?
Question 8 options:

A)

GH ≅ KJ

B)

∠H ≅ ∠L

C)

∠G ≅ ∠L

D)

JK ≅ FG

Answers

Answer:

Answer is C) Angle G is congruent to Angle L

Answer is C this a math is subtracted and I know
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