number on c's in 2na2co3

Answer:

Here are my answers

hope this helps

Step-by-step explanation:

1. isosceles triangle

2.   3x + 15 = 90       x = 25

     x + 25 = 90        x = 65

     x + 55 = 90        x = 35

3. The size for DAB is 84

My reasoning is I went from one angle to another by subtracting 180 from my answers. For example angle 132 is supplementary to the missing angle next to it. I subtract 180 from 132 and get 48. That already solves the 2 equivalent angles in the triangle so I have 48+48+x = 180 because a full triangle equals 180. I get x = 84 then I do the same thing I did with angle 132. Angle 84 is supplementary to the missing angle next to it. I subtract 84 from 180 and get 96 then go diagonal from angle C (which is 96) to angle A. Those are supplementary so I subtract 96 from 180 and get 84.

Answer:

41

Step-by-step explanation:

Answer:

m = -10

Step-by-step explanation:

Answer:

m = 18

Step-by-step explanation:

In order to solve this we do the following steps:

2 = m/2 - 7

Multiply both sides by 2 and get...

4 = m - 14

m = 4 + 14

m = 18

I think you selected the right answer

Answer:

Step-by-step explanation:

Answer:

9/4 or 2.25

Step-by-step explanation:

9=4t

Move the 4

9/4=t in decimal its 2.25=t

9514 1404 393

Answer:

  A) difference of squares

  B) GCF

  C) trinomials (X method)

Step-by-step explanation:

When a binomial is a difference of squares, factoring using the "difference of squares" method is appropriate.

The first binomial is ...

  (2x)² -5² . . . . . a difference of squares

  = (2x -5)(2x +5)

__

When the binomial is not a difference of squares, but there is a common factor, then the GCF method is appropriate.

  2x³ -4x² = 2x²(x -2) . . . . . GCF method

__

When the expression is a trinomial, often the X method can work for factoring it.

  x²-5x +6 . . . . 2 numbers are needed that sum to -5 and are factors of 6

  6 = (-2)(-3), so the factorization is (by X method)

  (x -2)(x -3)

Answer:

The expression is not factorable with rational numbers

Step-by-step explanation:

a²-10a+24+6b-9b²​

(a-6)(a-4)+3b(2-3b) but this is incorrect

Therefore, the expression is not factorable with rational numbers

Answer:

Tangent= "Toa" = opposite by adjacent

Step-by-step explanation:

solved by Pythagoras theorem

so 4²+b²=16²

so 16+b²=256

so b²=256-16

b²= 240

b= 15.49

rounding=15.5

pls gimme brainliest I need it you didn't gimme last time

We have to pay $0.63 sales tax if the rate is 6%.

What is the sales tax?

Sales tax is a tax that is added to the price of goods or services when they are sold. It is typically a percentage of the purchase price and is collected by the seller from the buyer.

In this case, the price of the bucket of popcorn is $8.00 and the price of the soda is $2.50. If the sales tax rate is 6%, the total amount of sales tax paid on the popcorn would be $8.00 x 6/100 = $0.48 and on soda is $2.50 x 6/100 = $0.15. So the total amount of sales tax paid on both items is $0.48 + $0.15 = $0.63

Hence, we have to pay $0.63 sales tax if the rate is 6%.

To learn more about sales tax, visit:

https://brainly.com/question/1700984

#SPJ1

Answer:

Store B has more expensive lawn mowers.

Step-by-step explanation:

The median price is the price in the middle of the possible prices which means that if you double the median price you will get about what the highest price can be.

What can be inferred from the data is store B has more expensive lawn mowers.

Median can be described as the number that occurs in the middle of a set of numbers that are arranged either in ascending or descending order. Median is a measure of central tendency.  For example 3 is the median in this dataset: 1, 3, 6

To learn more about median, please check: https://brainly.com/question/14746682

Answer:

OKAY

Step-by-step explanation:

Thankyou so much for the points btw

Answer:

628.32 or 628.31853071796

Step-by-step explanation:

V=πr²h or Volume equals pi r squared times h

V=pi*10²*2

Answer:

(23*2)+s

Step-by-step explanation:

Answer:

2(23+s)

Yep there ya goo

Answer:

34

please mark brainliest

Answer: Converges to 0

Step-by-step explanation:

took test

Answer:

its not b

Step-by-step explanation:

Answer:

false i think

Step-by-step explanation:

Answer: true

Step-by-step explanation:

Answer:

57?

Step-by-step explanation:

I'M NPT SURE IF IT'S CORRECT but I added them both and subtracted 180

Answer:

n+7.6=13.82

n=13.82-7.6

n=6.22

Step-by-step explanation:

simple subtraction

Answer:

y = -1/3x + 5

Step-by-step explanation:

y = -1/3x + b

3 = -1/3(6) + b

3 = -2 + b

b = 5

Answer:-5-6

Step-by-step explanation:

Step-by-step explanation:

y = 28 - 2x

x = 1, y = 28 - 2(1) = 26

x = 3, y = 28 - 2(3) = 22

x = 4, y = 28 - 2(4) = 20

x = 5, y = 28 - 2(5) = 18

Answer:

No

Step-by-step explanation:

Are you sure you copied the problem down accurately?

No, there are no grounds for stating that 2.2 + 8x + 8 and (x + 4) are equivalent.  Explain your reasoning, please.

Answer:

A

Step-by-step explanation:

Since the triangles are similar then the ratios of corresponding sides are equal, that is

[tex]\frac{AC}{DF}[/tex] = [tex]\frac{BC}{EF}[/tex] , substitute values

[tex]\frac{45}{x+8}[/tex] = [tex]\frac{30}{25}[/tex] ( cross- multiply )

30(x + 8) = 1125 ( divide both sides by 30 )

x + 8 = 37.5 ( subtract 8 from both sides )

x = 29.5 → A

Answer:

$45

Step-by-step explanation:

30% ÷100 =0.3. 0.3×150= 45