i don't understand this question can someone help me with this please, please explain!!

Answer:

26

Step-by-step explanation:

The sum of two interior angles in a triangle is equal to an exterior angle that is supplementary to the third interior angle.

so:

30 + 2w - 8 = w + 48

22 + 2w = w + 48 export like terms to the same side of the equation

2w - w = 48 - 22 subtract

w = 26

46.6 feet

Step-by-step explanation:

P = 2ℓ + 2w

P = 2(ℓ + w)

P = 2(15.5 + 7.8)

P = 2(23.3)

P = 46.6 feet

Answer:

length is 8ft and width is 5ft

Step-by-step explanation:

I got this answer because it said the length is 2 less than twice the width and I thought of 5 and 5×2 is 10 - 2 which is 8

Answer:

Part A. the answer is 90

Part B. the answer is 145

Hope this helps :P

Step-by-step explanation:

Answer:

h = 2

Step-by-step explanation:

I'm assuming your periods are multiplication signs.

(h + h) X (h X h) = 16

When adding two variables like the first set of parentheses, it would become 2h.  When multiplying two like variables, you add the exponents.  h is the same as writing h¹.  So h¹ x h¹   gives you the answer of h².

So now your equation would look like:

2h  X  h²  = 16

As above, when you multiply two like variables you would add the exponents.  Also if any number are in front of the variable you would multiply those numbers.  So you have 2h¹ x 1h² and that would be 2h³.  If it had been

2h¹ x 2h², your answer would have been 4h³.

But so far you have 2h¹ x 1h² = 16

2h³ = 16

Dividing both sides by 2 you get

h³ = 8

To find h you have to take the cubed root of 8.  What number multiplied by itself 3 times gives you 8?    2 x 2 x 2 = 8     2 x 2 = 4 and x 2 = 8.

h = 2

If you put this into the original equation you have:

(2 + 2) x ( 2 x 2) = 16

 ( 4 ) x ( 4 ) = 16

Yes, 13/19 is a rational number.

All fractionals are rational numbers, making this a rational number. Let me know if you have any questions, thanks!

Answer:^3−28

Step-by-step explanation:

Answer: 2.6/small

Step-by-step explanation:

Answer:

its 2.6 and small

Step-by-step explanation:

The person is right im just here to confirm xd

Answer:

k = 5

Step-by-step explanation:

y = kx

10 = 2k

k = 5

Answer:

A

Step-by-step explanation:

Since slope is rise over run:

The slope of KM would be [tex]\frac{KL}{LM}[/tex] and the slope of PS would be [tex]\frac{PR}{RS}[/tex]

So [tex]\frac{KL}{LM}[/tex] = [tex]\frac{PR}{RS}[/tex]

Answer:

it should be 250m

Step-by-step explanation:

Bus X travels 40m for 2h which gives you 80m and Bus Y travels 60m for 11/2h which gives you 330m so the difference in miles is 250m

The range of function graphed above is :

Answer:

(51, 26) x-y=25 and so on

(47,33) 2x-3y=-5 and so on

(-17, -36) x-y=19 and so on

(-31, -56) 2x-y=-6 and so on

Step-by-step explanation:

Answer: 281.20

Step-by-step explanation:

12,795-795=3515

take 8 percent of that and you get 281.20

Answer:

-50,25 is the answer

Step-by-step explanation:

........................

Answer:1/2 (1 over 2)

Step-by-step explanation:

Answer:

get it from some else pllease

Step-by-step explanation:

type this in

The graph shows a scuba diver's ascent over time. Use the graph to write an equation in slope-intercept form that represents the diver's depth over time.

Answer:

9/10

Step-by-step explanation:

I used a calculator ! :)

Answer:

y=1/2x + 4?

Step-by-step explanation:

I am not really sure. Im sorry if im wrong:(

Answer:

x = 1 ± 2i

Step-by-step explanation:

x² - 2x + 5 = 0 ( add 5 to both sides )

x² - 2x = - 5

Using the method of completing the square

add ( half the coefficient of the x- term)² to both sides

x² + 2(- 1)x + 1 = - 5 + 1

(x - 1)² = - 4 ( take square root of both sides )

x - 1 = ± [tex]\sqrt{-4}[/tex] = ± 2i ( add 1 to both sides )

x = 1 ± 2i ( that is the solutions are complex )

Answer:

[tex]x=1\pm2i[/tex]

or

[tex]x=1+2i[/tex]

[tex]x=1-2i[/tex]

Step-by-step explanation:

All equations of the form [tex]ax^2+bx+c=0[/tex] can be solved using the quadratic formula: [tex]x = \frac{-b \pm \sqrt{b^2-4ac}}{2a}[/tex]

Quadratic formula gives two solutions, one when ± is addition add one when it is subtraction.

[tex]x^2-2x+5=0[/tex]

Equation is in standard form: [tex]ax^2+bx+c=0[/tex]

Substitute 1 from a, [tex]-2[/tex] for b, and [tex]5[/tex] for C in the quadratic formula, [tex]\frac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]

[tex]x=\frac{-\left(-2\right)\pm \sqrt{\left(-2\right)^2-4\times \:1\times \:5}}{2}[/tex]

Multiply -4 × 5:

[tex]x=\frac{-\left(-2\right)\pm \sqrt{\left(-2\right)^2-4\cdot \:1\cdot \:5}}{2}[/tex]

Add 4 + -20:

[tex]x=\frac{-\left(-2\right)\pm \:4i}{2}[/tex]

* the opposite of -2 is 2:

[tex]x=\frac{2\pm 4i}{2}[/tex]

Now, solve equation:

[tex]x=\frac{2+4i}{2}[/tex]

Divide 2 + 4i by 2:

[tex]x=1-2i[/tex]

_____________________________

10. x-int: 2  y-int:-2

11. x-int: 4  y-int: 4

12. x-int: 2  y-int:4

13. draw a straight horizontal line at y=4 across the entirety of the graph

14.start at origin go up 3 every 1 box over in +x direction and down 3 in -x direction

15.start at y=4 and go up 1 every box over in +x direction and down 1 every box over in -x direction

Answer:

8 or -8

Step-by-step explanation:

Lets just say their net results equals x so -10+2=x

-10+2=-8 which i think you would take off the negitave and it would be an 8 I'm not sure sorry:(

Sorry I couldn't help

Answer: x

=

5

±

i

√

23

6

Explanation:

y

=

3

x

2

−

5

x

+

4

=

0

Use the improved quadratic formula.

D

=

d

2

=

b

2

−

4

a

c

=

25

−

48

=

−

23

=

23

i

2

-->

d

=

±

i

√

23

There are no real roots. There are 2 complex roots:

x

=

−

b

2

a

±

d

2

a

=

5

6

±

i

√

23

6

=

5

±

i

√

23

6

Step-by-step explanation:

Answer:

X= (5 ± i√23)/6

Answer:52.7• 1014

Step-by-step explanation:

Answer:

It MAY be 1/30

Step-by-step explanation:

for the given graph :

rate of change = -5

Initial condition = 32

Answer:

5^4-3

5¹

by law

a^m÷a^n= a^m-n

Answer:

x_>_ -21

Step-by-step explanation:

that's the answer trust ........... n nnmmmm