Solve the following system of equations. Express your answer as an ordered
pair in the format (a,b), with no spaces between the numbers or symbols.
2x + 7y= - 7
- 4x – 3y = – 19

Answer:

12ba^2+20ab with the "ba"

if that was a typo then it's 34^2ab

Step-by-step explanation:

Answer:

Combine like terms to get

14ba2+21ab2−ab2=20ab2+14ba2

Step-by-step explanation:

..

Answer:

5/8 is higher

Step-by-step explanation:

5 divided by 8 is 0.625

0.62 < 0.625 / 5/8

Answer:

5/8 is higher

its 0.625 but if you were to round it it would be 0.63

Step-by-step explanation:

Answer:

z = 5

Step-by-step explanation:

divide both sides of the equation by -0.25

[tex]-0.25z = -1.25[/tex], original equation

[tex]\frac{-0.25z}{-0.25} =\frac{-1.25}{-0.25}[/tex], divide both sides by -0.25, solve for -1.25 ÷ -0.25 = 5

[tex]z = 5[/tex], final answer

Answer:

81

Step-by-step explanation:

thus it said 27 km/hr, she travel 27 km every hour so 27*3=81

Answer:

D

Step-by-step explanation:

Answer: D

The first option is incorrect because 56+angle 3=180 and when you solve it angle 3 equals 124 degrees, not 142 degrees

The second option is incorrect because 56+43+angle 1=180 (because all triangles add up to 180 degrees). When you solve that angle 1 equals 81 degrees, not 99 degrees

The third option is incorrect because angle 1+angle 2=180, and we already know angle 1 equals 81, so when you solve that angle 2 equals 99 degrees, not 137 degrees. So we know the last option is correct.

But if you want to make sure it's correct, you can always solve for angle 4. Angle 4+43=180 degrees, and when you solve it, angle 4 equals 137 degrees, and we know that option is correct.

Hope this helped you!

Answer:

(y-2x)(3x+y)

B

Answer:

[tex]B. \left(y-2x\right)\left(y+3x\right)[/tex]

Step-by-step explanation:

[tex]y^2+xy-6x^2[/tex]

Break the expression into group:

[tex](yx^{2} -2xy)(3xy-6x^{2} )[/tex]

factor out  [tex]y[/tex] from [tex]y^{2} -2yx:y\left(y-2x\right)[/tex], and factor out, [tex]3x[/tex] from [tex]3yx-6x^2:3x\left(y-2x\right)[/tex]

[tex]y\left(y-2x\right)+3x\left(y-2x\right)[/tex]

Now, factor out common terms: [tex]y-2x[/tex]

[tex]\left(y-2x\right)\left(y+3x\right)[/tex]

_________________

OAmalOHopeO

Step-by-step explanation:

i think you just have to subtract 460-187 equals 273 so he can put 273 or something lower then that

Answer:

Step-by-step explanation:

The domain, the possible values of x, is only limited in this function when the function is undefined. Specifically division by zero is undefined. In this case x cannot be equal to 9 because that would lead to division by zero. And that is the only restriction. So the domain is all real numbers except 9. In interval notation this is

x=(-oo, 9),(9, +oo)

the last one Step-by-step explanation:

Hey sorry for the late response but:

Answer:

I think its -C  : e and f r paraller cause of alternative exterior angles ...

Step-by-step explanation:

I feel C is right as :

Option a - The lines a and b's alternative exterior angles r not congruent(as not given)

Option b- there is no such rule like tht

Option c- Yes as the alternative exterior angles r  congruent

Option d- No as there is no such rule and its not even true.

iI hope im right ..!!

(Pls tell me if im right or wrong)

Answer:

if this is a right triangle and you want to know the length of the hypotenuse:

c = 15.62 feet

Step-by-step explanation:

c² = a² + b²

c² = 10² + 12² = 100 + 144 = 244

c = √244 = 15.62 feet

Answer:

it is 380 :)

Step-by-step explanation:

Answer:

Step-by-step explanation:

10^3=10(10)10=1000

1000(0.38)=380

Step-by-step explanation:

3/5 is the correct answer to this

Step-by-step explanation:

.41 is biggee than 3/5......

Answer:

-1,10

0,8

2,4

3,2

Step-by-step explanation:

plug it in, x with x and y with y

example:

2(-1)+ y=8

Answer:

?

Step-by-step explanation:

Answer:

The ratio of red to blue would be 60: 6 which can be simplified to 10:1.

The ratio of red to blue counters would be 60: 6 which can be simplified to 10:1

Ratio is the comparison of two quantities in terms of same units.

Example : If a & b be two numbers, then the ratio is a/b, where b≠0

Let Blue counters = x

Red counters would be = 3 times of blue counters = 3x

There are a total of 120 counters in a box.

First we have to find, the number of red and the number of blue counters:

3x + x = 120

⇒ 4x = 120

⇒ x = 120/4

⇒ x = 30

There are 30 blue counters.

Red counters = 3×30 = 90

Carl took 1/3 of the red, 90 / 3 = 30, so there were 60 red counters left in the box.

Kerry took 80% of the blue, 30 * 0.80 = 24, so there were 6 blue counters left in the box.

The ratio of red to blue counters would be 60: 6 which can be simplified to 10:1.

Learn more about ratio here :

https://brainly.com/question/20841591

#SPJ2

Answer:

a. perimeter is 112

b. area is 784

Answer:

28 feet.

Step-by-step explanation:

Area =  l × w

=  2 × 14

=  28 feet^2

Answer:

-3

Step-by-step explanation:

Answer:

48.96

Step-by-step explanation:

12.24÷4= 3.06 pounds

covert it to ounce = 48.96

Answer:

3

Step-by-step explanation:

2 -3 = -1 + 4 = 3

Answer:

(6+4x+8)-4-2x-5

6-4+4x-2x+8-5

2+2x+3.

Answer:

217

Step-by-step explanation:

You would do the area of the big rectangle and subtract the areas of the two triangles. The triangles add up to 63 and the rectangle is 280 ft^2

Answer:

37.17

Step-by-step explanation:

Find the mean by adding together all of the numbers, then dividing it by how many numbers there are.

(29 + 75 + 21 + 45 + 39 + 14) / 6

= 37.17

So, if 29 is added, the mean is approximately 37.17

Answer:

37.17

Step-by-step explanation:

Hope this helps