Simplify the expression:
-9n + -2n

I'm not sure if it's correct..........

Answer:

I believe that the answer is 2x-8

Answer:

x+3=2x-6

2x-x=3+6

x=9

AB=9

Answer:  .13

Step-by-step explanation:

63/100=0.63

5/10=0.50

=.13

I took 63 and divided it by 100 to get .63 and took 5 and divided it by 10 to get .50 so I took them and subtracted them to get .13

Answer:

1/24

Step-by-step explanation:

The first spinner has 6 letters. The letter A is 1 of those letters. So, the probability of the pointer landing on A is 1/6.

The second spinner has 8 numbers. The numbers 3 and 6 are 2 out of those 8 numbers. So, the probability of the pointer landing on 3 or 6 is 2/8 or 1/4.

Now multiple the two probabilities together.

1/6 × 1/4 = 1/24

Hope that helps.

Answer:

Sorry just trying to get pts

Step-by-step explanation:

Answer:

10. y = 49, x = 15

11. y = 4, x = 61

Answer:

4x²+35x+24

Step-by-step explanation:

FOIL the binomials and simplify

4x^2 + 35x + 24

That's all I know.

Answer:

100*.025*3=7.5 100+7.5=107.5

100*.02*3=6 100+6=106

107.5-106=1.5

$1.50

Step-by-step explanation:

thats it

Answer:

(3,-8) (2,-10)

Step-by-step explanation:

Graph and see where the points are, if they are in the solution, they are correct.

Please mark me brainlist and solve the question I just asked.

Have a good day :)

Answer:

x=13

Step-by-step explanation:

Move all terms that don't contain  x to the right side and solve.

Brainly plss

Answer:

x=13

Step-by-step explanation:

Simply here we can see ID is a straight line.

So, angle IHL + angle EHK = 180°

or, 75° + angle EHK = 180°

or, angle EHK= 105°

Hope it helps uh.

Answer:24,173.856

Step-by-step explanation: you calculate the average of the last 3 years then find 1.8% of that number and then multiple by 28 years to find his total pension

Answer:

★ The answer is 24,173.856

Step-by-step explanation:

Hope you have a great day

Answer:

the correct answer is A . because the in the division problem 2.53 is divided by 23 so in fraction form it will be like 2.53/23!!

Step-by-step explanation:

Answer:

1215

Step-by-step explanation:

1000(1+5divided 1000)^4 = 1215.5

nearest dollar is 1216

Answer:

238

Step-by-step explanation:

280 times 0.85 = 238

Answer:

So we have an original figure with a value of 50 and then a scaled version or dilation

Hence we have a scale factor of

[tex] \frac{1}{5} [/tex]

Answer and Step-by-step explanation:(MAKE ME BRAINLIEST)

Answer:

x>5

Step-by-step explanation:

Answer:

x=1

Step-by-step explanation:

3x+6=9

3x=3

x=1

Answer:

X=1

Step-by-step explanation:

if you take away 6 from each sides it will leave you with 3 X's on the left and three 1's on the right. If the equation is equal then each X should match up with a 1. which makes each side equal to nine. Hope that helped :)))

Answer:

Infinite amount of solutions

General Formulas and Concepts:

Algebra I

Step-by-step explanation:

Where the 2 lines intersect is the solution set to the systems of equations.

If the 2 lines are parallel, they have no solution.

If the 2 lines are the same, they have infinite amount of solutions.

Step-by-step explanation:

y=3x+2

when x=0

y=3(0)+2

y=2

(0,2)

when y=0

3x+2=0

3x=-2

x=+2/3

(-2/3,0)

6x-2y=-4

when x=0

6(0)-2y=-4

-2y=-4

y=2

(0,2)

when y=0

6x-2(0)=-4

6x=-4

x=-4/6

x=-2/3

(-2/3,0)

same line

Answer:

741 mm squared

Step-by-step explanation:

area=base times height

perimeter= 78/4=

1 side=19.5mm

base=

38mm times 19.5=741mm squared

i hope i helped<3

Answer:

First polygon has 16 sides

Second polygon has 24 sides

Step-by-step explanation:

Let the number of sides for first polygon be a and that for the second polygon be b

formula for sum of interior angle is;

180n-360

So for individual interior angle we have;

(180n-360)/n

So for polygon A

(180a-360)/a

For polygon B

(180b-360)/b

Let’s divide both to equate to the ratio

(180a-360/a)/(180b-360)/b) = 21/22

Factor out 180

(a-2)/a * b/b-2 = 21/22

b(a-2)/a(b-2) = 21/22

22b(a-2) = 21a(b-2) •••••• (i)

For the second part

Sum of exterior angle of any polygon is 360

Individual exterior angle is 360/n

for the first polygon;

360/a ;

For the second 360/b

Thus;

b/a = 3/2

2b = 3a ••••••••(ii)

b = 3a/2

11(2b)(a-2) = 21a(b-2)

11(3a)(a-2) = 21a( 3a/2-2)

33a(a-2) = 21a(3a-4)/2

22a(a-2) = 7a(3a-4)

22a^2 - 44a= 21a^2-28a

22a^2-21a^2+28a - 44a = 0

a^2 + 28a - 44a = 0

a^2 -16a = 0

a(a-16) = 0

a = 0 (which cannot be)

or a-16 = 0

a = 16

Recall;

b = 3a/2

b = 3(16)/2

b = 24

Answer:

A.13

Step-by-step explanation:

You just have to add the 12 and the 14 and then divide it by 2.

12+14=26

26/2= 13

Hope it helps!

Answer:

56 i did the work

Step-by-step explanation:

Answer:

y = 5

Step-by-step explanation:

The triangle is an isosceles triangle, which means that it has two equal sides and two equal angles.

Therefore, angles B and C are both equal to 75°.

A triangle measures 180°.

75 + 75 + x = 180

150 + x = 180

x = 30°

Angle A has to equal 30°.

(4y + 10)° = 30

4y + 10 - 10 = 30 - 10

4y = 20

y = 5

Hope that helps.