Help me with this please

Answer:

1) 34º

2) 52º

3) 56º

4) 94º

Step-by-step explanation:

let 3 be x

let 1 be y

let 2 be z

let 4 be j

180=86+38+x              56=x

90=56+y                     34=y

180=86+j                     94=j

180=34+z+94              52=z

Answer:

5x + 10 - 15x²

Step-by-step explanation:

5x(2 - 3x) + 4(2 - 3x) + 2 - 3x

=> 10x - 15x² + 8 - 12x + 2 - 3x

=> -5x + 10 - 15x²

This is our expression that is simplified. Hoped this helped.

Answer:

D. Some of these same protein appear in the waste products of brain cells

Step-by-step explanation:

Sentence 18 is talking about the proteins, that are common in alzheimers as well. Then sentence 19 talks about getting rid of the waste.

Option D is the correct choice because it talks more about the specific proteins and why they can be bad and provides additional support for sentence 19 talking about how to get rid of the waste that these proteins appear in.

Hope this helps!

Answer:

D

Step-by-step explanation:

just took test and got a 100

The required value of the expression x·y·z is -3/4 which is determined by substituting the values of x, y, and z in the given expression.

A fraction is defined as a numerical representation of a part of a whole that represents a rational number.

The given expression below is:

⇒ x·y·z

We have to determine the evaluation of the given expression  

Here the variables x, y, and, z are given in the question

x = −2/3

y = 0.6

z = 1 7/8 = 15 / 8

⇒ x·y·z

Substitute the values of x, y, and z in the given expression,

⇒ (-2/3)·(0.6)·(15 / 8)

⇒ (-2/3)·(6/10)·(15 / 8)

⇒ - (2×6×15) / (3×10×8)

⇒ - 180 / 240

Reduce the fraction to the simplest form

⇒ - 3 / 4

Thus, the required value of the expression x·y·z is -3/4.

Learn more about the fraction here:

brainly.com/question/10354322

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Answer:

I'm not doing this to steal points, but I can't see the painting. So yeah, sorry. Plese insert a image of that painting next time. Sorry.

Step-by-step explanation:

Answer:

agreed can't see the whole problem

Step-by-step explanation:

AKA the painting

Answer:

Step-by-step explanation:

∠VWX = 92° so arc length VKX is twice that at 184°

subtracting arc angle VK means arc angle KX = 184 - 42 = 142°

This means that arc angle WVK is 360 - 102 - 142 = 116°

So unknown ∠WXK is half of that at 116 / 2 =  58°

Answer:

(x-1) (x-3) (x+2)

Step-by-step explanation:

I hope this helps!

Answer:

m ∠H = 106°

Step-by-step explanation:

Sum of the angles in a triangle = 180

41° + 33°  + ∠H = 180°

  74° + m ∠H = 180°

       m ∠H = 106°

Answer:

  (tables, chairs) = {(2, 12), (3, 8), (4, 6), (6, 4), (8, 3), (12, 2)}

Step-by-step explanation:

Divisors of 24 are 1, 2, 3, 4, 6, 8, 12, 24. Each of these (except 1 and 24) can be a number of tables:

  2 tables, 12 chairs each

  3 tables, 8 chairs each

  4 tables, 6 chairs each

  6 tables, 4 chairs each

  8 tables, 3 chairs each

  12 tables, 2 chairs each

9514 1404 393

Answer:

Step-by-step explanation:

The speed against the wind is ...

  4680 mi/(8 h) = 585 mi/h

The speed with the wind is ...

  5720 mi/(8 h) = 715 mi/h

The speed of the airplane in still air is the average of these speeds:

  (585 +715)/2 = 650 mi/h . . . speed in still air

The speed of the wind is the difference between the airplane speed and the speed in the wind:

  715 -650 = 65 mi/h . . . speed of the wind

_____

Additional comment

If p and 'a' represent the speeds of the plane and the air, the speeds with and against the wind are ...

  p + a = with

  p - a = against

If we average these, we get ...

  ((p +a) +(p -a))/2 = (with + against)/2

  p = (with + against)/2 . . . . . . . the formula we used above

Answer:

7sqrt2

Step-by-step explanation:

If angle K is 45 degrees then angle L will be 45 degrees

This means LM and KM will be the same length

Using pythagoras theorem you get KL =7sqrt2

Answer:

11

Step-by-step explanation:

While I square, all the sides of square are the same side, right on the same length. So therefore, um, one side of the square must be equal to well 44 divided by four because they're all the same length. So therefore, one side of the square is just 44 divided by four, which is 11.

Answer:

The answer is the image I put.

Step-by-step explanation:

The equation is y=mx+b

m=slope

b=y-intercept

So, the equation is y=2/5x+-5, which i graphed for u

Hope this helps! Plz give brainliest!

The Graph of the line with slope 2/5 and y-intercept -5 is attached below.

The intersection of the graph of the function with the y-axis gives y-intercept of that function. The y-intercept is the value of y on the y-axis at which the considered function intersects it.

Assume that we've got: y = f(x)

At y-axis, we've got x = 0, so putting it will give us the y-intercept.

Thus, y-intercept of y = f(x) is y = f(0)

We are asked to Graph the line with slope 2/5 and y-intercept -5.

The equation is y=mx+b

m=slope

b = y-intercept

Therefore, the equation is y=2/5x+-5

Hence, The Graph of the line with slope 2/5 and y-intercept -5 is attached below.

Learn more about y-intercept here:

https://brainly.com/question/16540065

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Answer:

y= -x + 4

Step-by-step explanation:

[tex]\mathrm{Find\:the\:line\:}\mathbf{y=mx+b}\mathrm{\:passing\:through\:}\left(-1,\:5\right)\mathrm{,\:}\left(4,\:0\right)[/tex]

Answer:

Step-by-step explanation:

In equation A, c = 7

In equation B, d = 5

Answer:

Step-by-step explanation:

Year on is 480 dollars and year two is 960 dollars

9514 1404 393

Answer:

  (a) $3480

  (b) $4036.80

Step-by-step explanation:

(a) The amount due on the loan at the end of 1 year is ...

  $3000×(1 +16%) = 1.16×$3000 = $3480

__

(b) The same multiplier applies to the loan value for the second year. The amount due at the end of year 2 is ...

  1.16×$3480 = $4036.80

Answer:

positive slope

(0,3)

slope = 2

Step-by-step explanation:

or if the angle made by the line to the x axis is < 90 it's slope is positive.

    lines passing through points (1,5) (0,3)

    slope = (3 - 5) / (0 - 1)

              = -2 / -1 = 2  

- The line is positive because it is going upwards from the bottom left to the top right

- The y-intercept is positive 3

              - It can be found by seeing where the line intercepts the y-axis when x = 0

              - Written as a coordinate point of (0, 3)

- The slope of the line is 2

              - It can be found by using "rise over run" which is the change in y divided by the change in x

Answer:

-2/3

Step-by-step explanation:

Answer:

Step-by-step explanation:

13.3 + 6.7 = 20

[tex]\frac{13.3}{20} = \frac{x}{x + 10} \\\\ 20x = 13.3(x + 10) \\\ 20x = 13.3x + 133 \\\ 20x - 13.3x = 133 \\\ 6.7x = 133 \\\ x = \frac{133}{6.7} \\\\ x ≈ 19.85 \\\ x ≈ 20[/tex]

I hope I've helped you.

Answer:

yes, your friend is correct

Step-by-step explanation:

14 x 4 = 56 and 25 x 4 = 100

56

------ = 0.56 in decimal form

100

Answer:

Ella sold 100 boxes, and Sarah sold 60 boxes

Step-by-step explanation:

Variables:

Let s be sarah

Let e be ella

Equations:

3e = 5s

s + e = 160 ⇒ s = 160 - e

Work:

3e = 5(160 - e)

3e = 800 - 5e

+5e          +5e

8e = 800

e = 100

Ella sold 100 boxes of chocolates.

3(100) = 5s

5s = 300

*divide both sides of the equal sign by 5

s = 60

Sarah sold 60 boxes

Answer:

Sally does 1/5 of a room per hour.

Steve does 1/7 of a room per hour.

Together --> 1/5 + 1/7 = 12/35 rooms per hour.

The inverse is hours per room = 35/12

--------------

Parallel work is similar to parallel flow and parallel resistors.

----

PS 5*7/(5+7) = 35/12

Step-by-step explanation:

Answer: about 3 hours and 5 minutes

Step-by-step explanation:

Sally can paint [tex]\frac{1}{5}[/tex] of the room in an hour while Steve is able to paint [tex]\frac{1}{8}[/tex] in an hour.

To find how long it would take to paint the room together you add the two fractions together:

[tex]\frac{1}{5} + \frac{1}{8}[/tex]

To add or subtract fractions we find a common denominator and add the numenators:

[tex]\frac{1}{5} = \frac{8}{40}[/tex]   [tex]\frac{1}{8} = \frac{5}{40}[/tex]

[tex]\frac{5}{40} + \frac{8}{40} = \frac{13}{40}[/tex]

The inverse of the fraction is hours per room = [tex]\frac{40}{13}[/tex]

[tex]\frac{40}{13}[/tex] = 3.077 = about 3 hours and 5 minutes.

Recall that ||x||² = x • x for any vector x, so

||u + v||² = (u + v) • (u + v)

||u + v||² = (u • u) + (u • v) + (v • u) + (v • v)

||u + v||² = ||u||² + 0 + 0 + ||v||²

||u + v||² = ||u||² + ||v||²

where u • v = v • u = 0 since u and v are perpendicular.

Then

||u + v||² = (5√2)² + (6√2)²

||u + v||² = 25•2 + 36•2

||u + v||² = 122

||u + v|| = √122

Answer:

11.05

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

Answer: 2

Step-by-step explanation:

Answer:

30

Step-by-step explanation:

A simple way to find an unknown value in an equality with fractions is to cross-multiply:

How to cross-multiply:

1. Multiply the first numerator by the second denominator (or vise versa).

2. Multiply the second numerator by the first denominator(or vise versa).

3. Put these values into an equation, making them equal to one another.

4. Find the unknown value by solving the equation.

Now, using your problem, I will take you through the steps of cross-multiplying:

(The unknown value will be written as a variable x.)

(1.)  15 × 10 = 150

(2.)  5 × x = 5x

(3.)  5x = 150

Divide both sides of the equation by 5 to find the exact value of x.

[tex]\frac{5x}{5}[/tex] = [tex]\frac{150}{5}[/tex]

After dividing, the equation will show x = 30, which is the unknown value.

___________

[tex] \: [/tex]

[tex] \frac{15}{ \boxed{}} = \frac{5}{10} [/tex]

[tex] \frac{15}{x} = \frac{5}{10} [/tex]

[tex]x = \frac{15 \times 10}{5} [/tex]

[tex]x = \frac{150}{5} [/tex]

x = 30