Solve by factoring.
s2 + 8s + 15 = 0

Answer:

x = 8.5

Step-by-step explanation:

You have all three angles already, so it's easy: 90°, (4x - 8)°, (6x + 13)°

The sum of all angles is 180°

90 + (4x - 8) + (6x + 13) = 180

10x + 95 = 180

      - 95     -95

10x = 85

x = 8.5

Answer:

b

Step-by-step explanation:

Answer: 8y^6x^6

Step-by-step explanation:

Volume = l*w*h so multiply all the variable by multiplying the numbers and adding the exponents so

2y^2*4x^4y=8y^3x^4

then 8y^3x^4*x^2y^3=8y^6x^6

[tex]3 \sqrt{3} [/tex]

please mark me as brainlist

Answer:

To get the percentage change, we need to compare the new price to the old price.

Step-by-step explanation:

[tex] \frac{11 - 8}{11} \times 100\% = 27.27\%[/tex]

Answer:

c is the answer or the third one

Answer:

E. (7,-2)

Step-by-step explanation:

Answer: 1719.22 mi squared

Step-by-step explanation:

you have to find the height first.

you only have r and hypotenuse

so

a^2 + b^2 = c^2

13^2 + b^2 = 29.1^2

169 + b^2 = 846.81

b^2 = 846.81 - 169

b^2 = 677.81

b = 26.03

height = 26.03

surface area formula :

          _______

πr(r+_/h^2+r^2)

                   ___________

π(13) [13 + _/26.03^2 + 13^2]

= 1719.22

Answer:

29

Step-by-step explanation:

Answer:

29

Step-by-step explanation:

Since 3x and 87 are the same length, all we need to do is 87 divided by 3.

Answer:

y = 2

Step-by-step explanation:

y=2 every time you add 3 to x your adding 2 to the y

-3 + 3 = 0 and 3 + 2 = 5

0 + 3 = 3 and 5 + 2 = 7

Answer:

a

Step-by-step explanation:

Answer:

The new points under the translation are (-8,8) and (-8,8)

Step-by-step explanation:

The method is actually quite simple and only involves basic arithmetic. The first step is to identify the translations occurring to each coordinate. If we recall that an ordered pair is (x,y), we can assign the translations to each value. Let's take the first point (1, -3) to start. 1 is our x and -3 is our y. If we then look at the translated point we can see that the x value there is -4. Then we can simply subtract the new x value, -4, from the first one, 1, and get 5. 5 is the number that we have to subtract from the next coordinate set to get the translated set. This gets us the first value of the second point -8 which we got by subtracting our 5 from the -3 in the x. Next, we can do the y value. The process is identical. Subtract the new from the old, -3-(-2)=-1. We then simply subtract the negative one (or just add one) from the y value of the other set. This gives us a value of 8, 7-(-1)=8. Then compound the two together putting x first then y and there you have it! Happy to help, Mw  

Answer:

$29.14

$86.68

Step-by-step explanation:

$30 before tax

Discount: 20%

100% - 20% = 80% = 0.8

0.8 * $30 = $24 after discount

Tax: 6.4%

100% + 6.4% = 106.4% = 1.064

1.604 * $24 = 25.54 after tax and discount

Tip: 15% = 0.15

0.15 * $24 = $3.60

Total = $25.54 + $3.60 = $29.14

$75 before tax

10% discount

100% - 10% = 90%

90% of $75 = 0.9 * $75 = $67.50 after discount

Tax: 7%

100% + 7% = 107% = 1.07

1.07 * $67.5 = $72.23 after discount and tax

Tip: 20% = 0.2

0.2 * $67.50 = $13.50

Total = $72.23 + $13.50 = $85.73

B irrational numbers true or false

Answer:

task 1 answer is 14

Answer:

63 Full loads of laundry

Step-by-step explanation:

We have been told in the question that  1 3/5 oz or 8/5 oz of detergent is used for a full load of laundry.

So,

1 full load of laundry requires 8/5 oz of detergent

Then,

x full loads of laundry require 100 oz of detergent

100 = 8/5x

x = 100 * 5/8

x = 63 Full loads of laundry (to the nearest whole number)

Answer:

39

____________________________________________

Step-by-step explanation:

Since you want to find the variable x all you have to do is simple subtraction.

The two numbers (61 and 22). Subtract those numbers and you get 39. Now it wants you to round to the jearest hundredth but there is no hundreds place so we can round to the nearest tenth. Which would be 30! Hope it helped... :)!

Bye! I did this same answer on this same problem that you posted again.

Answer:

c = 28

Step-by-step explanation:

2 * 6 -5 = 7

4 * 7 =28

hope it help

plz fo"ow me

Answer:

i think u have to use subtraction

Answer:

x = 50

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

subtract the sum of the 2 given angles from 180 for x

x = 180 - (90 + 40) = 180 - 130 = 50

Answer:

3ft tall yes 2ft and 12inches no

Step-by-step explanation:

hope this helps

Answer:

x = 6

Step-by-step explanation:

Given

x + 5 = 11 ( isolate x by subtracting 5 from both sides )

x = 11 - 5 = 6

Answer:

30 strings

Step-by-step explanation:

Answer:

5 guitars...each has 6 strings

5 x 6=30

so 30 strings needed

Answer:

14 to 8 I think

Step-by-step explanation:

Not too sure but looked on my old ratios sheet and there's 80:140 so that could be right but honestly none of these look right, I attached the photo of what my teacher told us to use last year to check answers

Answer:

y = n - 0.26n

y = 0.74n

Step-by-step explanation:

The equation that can be used to express the function above is given an Exponential Decrease function

Where:

y = a(1 - r)^t

Where

y = July sales

a = n = June sales

r = rate of decrease = 26% = 0.26

t = time in months = June to July = 1 month

t = 1

Hence, our equation =

y = n( 1 - 0.26)¹

y = n(1 - 0.26)

y = n - 0.26n

y = 0.74n

The equation that can be used to determine the sales in July is given as:

y = n - 0.26n

y = 0.74n

Answer:

Number of sent mail = 36

Number of received mail = 75

Step-by-step explanation:

Let,

x be the number of mails sent

y be the number of mails received

According to given statement;

x + y = 111      Eqn 1

y = 2x + 3     Eqn 2

Putting value of y from Eqn 2 in Eqn 1

x + 2x + 3 = 111

3x = 111 - 3

3x = 108

Dividing both sides by 3

[tex]\frac{3x}{3}=\frac{108}{3}\\x = 36[/tex]

Putting x = 36 in Eqn 2

y = 2(36) + 3

y = 72 + 3 = 75

Hence,

Number of sent mail = 36

Number of received mail = 75