PLS HELP! I WILL TEACH YOU HOW TO SOLVE YOU JUST HAVE TO SOLVE
Find the angle feta between the vectors.
HOW TO:
find the angle - cos(feta)=U*V/magnitudeU*magV
find mag - sqrt U squared plus V squared
13. u=(-4,-30), v=(-1,5)
14. u=(2,-2), v=(-3,-3)
15. u=(2,3), v=(-3,5)
16. u=(5,2), v=(-6,-1)
17. u=3i-3j, v= -2i+2sqrt3j
21. u=(-3,4), v=(8,5)
22.u=(-3,8), v=(-1.-9)

Answer:

The light blue one -- second from the left.

x = 14 ; y = 7√2

Step-by-step explanation:

This is a right triangle. One of the angles is 45. So is the other base angle.

So one of the legs is 7√2. The other leg is also 7√2 because they are opposite equal angles.

The hypotenuse is

a^2 + b^2 = c^2

a = b

2a^2 = c^2

2 (7√2)² = c^2

2 49 * 2 = c^2

4 * 49 = c^2

c^2 = 196

c = 14

Answer:

The ratio of juices to ginger ale is 2 to 2

The ratio of orange juice to the cranberry juice is 1 to 1

Step-by-step explanation:

Ginger ale = 2 liters

Orange juice = 1 liter

Cranberry juice = 1 liter

Total ratio = 2 + 1 + 1 = 4

The ratio of ginger ale to the entire punch bowl is 1 to 4.

Ginger ale : entire punch bowl

= 2 : 4

= 1 : 2

Not true

The ratio of orange juice to ginger ale is 2 to 1.

Orange juice : ginger ale = 1 : 2

Not true

The ratio of juices to ginger ale is 2 to 2.

juices : ginger ale = orange juice + cranberry juice : ginger ale

= 1 + 1 : 2

= 2 : 2

True

The ratio of the entire punch bowl to the juices is 2 to 4.

Entire punch bowl : juices 4 : 2

Not true

The ratio of orange juice to the cranberry juice is 1 to 1.

Orange juice : cranberry juice = 1 : 1

True

Answer:

35

Explanation:

The lengths of triangle PQR are 5x the lengths of triangle ABC.

4*5= 20

8*5= 40

7*5= 35

Answer:

the answer is c

Step-by-step explanation:

square root of 36 = 6 = 6 / 1D. 37 / 100 is already a fraction. Hence, the only number that cannot be written as a fraction is the square root of 48. The answer is C: the square root of 48 is an irrational number.

Answer:

y = -x + 5

0 is 0, +5 = 5

-2 + 5 = 3

Answer:

you do what it says

Step-by-step explanation:

Answer:

850,000

Step-by-step explanation:

Sorry if it's not  the right answer I have not worked on this math for a long time.

Answer: A & D

Step-by-step explanation:

Answer:

It would be A and D.

Step-by-step explanation:

Was this the answer you were looking for??

Answer:

5x-8=90

5x=90+8

5x=98

x=98/5

x=19.6

5(19.6)-8

98-8

90

4(19.6)+26

78.4+26

104.4

hence both lines are not perpendicular

answer: x4 + 10x3 + 8x2 + 4x + 10

2 |  1    10    8    4    10

  |         2   24  64   136

  ----------------------------

      1  12    32   68   146

The remainder theorem says that

p(2) = 146

Answer:

x = -3

y = 8

Step-by-step explanation:

x + 2y = 13    ------------(I)

    x  = 13 - 2y -----------(II)

-2x - 3y = -18 ----------(III)

Substitute x = 13 - 2y in equation (III)

   -2*(13 - 2y)  - 3y = -18

-2*13 - 2y *(-2) -3y = -18

  -26  + 4y  - 3y    = -18             {Combine like terms}

               -26 + y =  -18     {Add 26 to both sides}

                         y = -18 + 26

                         y = 8

Substitute y = 8 in equation (II)

x = 13 - 2*8

  = 13 - 16

x = -3

x = -3

y = 8

Answer:

congruent

Step-by-step explanation:

Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion .

Answer:

A triangle‘s angles should add up to 180 and the given angles sum up to 130 so x + 58 = 50 so x = -8

Hope this helped and brainliest please

Answer:

-8

Step-by-step explanation:

-8+58=50

50+53+77=180

triangles angles should equal 180

Answer:

wait ok

Step-by-step explanation:

Answer:

C. Infinitely Many Solutions.

Step-by-step explanation:

Look at attachment:

Hope this helps! :)

H= -16

Step-by-step explanation:

Answer:

There isnt an answer to this question, because this ineqwuality is false.

Step-by-step explanation:

−22>4

−22≯4

False

Answer:

your answer is FG , FG is parallel

Answer:

$9.60 for 42 fl oz

Step-by-step explanation:

$6.15 x 2=$12.30

$12.30 for 44 fl oz

$12.30-$9.60=$2.70

you would be paying $2.70 for 4 fl oz when 4 fl oz is 93 cent

Answer:  42 fluid ounce unit of dish soap.

Step-by-step explanation: Why? Well, 24 times 2 gives you 48 fluid ounces for $12.30. But for just 4 less fluid ounces of soap, you pay $9.60. This is just over a dollar for every two ounces of soap.  So $12.30- $9.60= $2.70. this shows you`d need to buy two 24 ounce bottles. *So if you ONLY BUY ONE 24 OUNCE SOAP* you are getting a bad deal. In order to make a better deal buy two 24 ounce bottles to get four more ounces and pay $2.70 more. Hence you only ask about buying one, so 42 ounces is your go to choice.

Answer:

d = sqrt(x2-x1)^2 + (y2-y1)^2

d = sqrt(4-3)^2 + (-3)^2

d=sqrt(1+9)

d=sqrt10

d=3.2

Let me know if this helps!

Answer:3.2 or square root of 10

Step-by-step explanation:

Answer:

x[tex]\geq[/tex]6

Step-by-step explanation:

The dot is filled so it could be equal to 6 and the arrow points to the right so it could also be greater than 6 this is why we put the "equal to or greater than" sign for x

Answer:

I believe 90

Step-by-step explanation:

25÷ 5.25 =4.76

4.76×18.90= 90

Answer:

D

Step-by-step explanation:

Answer:

undefined

Step-by-step explanation:

The slope of a vertical line is undefined

Answer:

1 small box

5 medium box

2 large box

Step-by-step explanation:

Let x be the small box, y be the medium box and z be the large box.

So, we have:

[tex]\begin{array}{cccc}{} & {Oatmeal} & {Chocolate} & {Shortbread} & {x} & {1} & {1} & {0} & {y} & {2} & {1} & {1}& {z} & {2} & {2} & {3} & {Total} & {15} & {10} & {11} \ \end{array}[/tex]

From the above table, we have the following equations:

Oatmeal:

[tex]x + 2y + 2z = 15[/tex] --- (1)

Chocolate Chip

[tex]x + y + 2z = 10[/tex] --- (2)

Shortbread

[tex]y + 3z = 11[/tex] --- (3)

Make y the subject in (3)

[tex]y =11 - 3z[/tex]

Substitute [tex]y =11 - 3z[/tex] in (1) and (2)

[tex]x + 2y + 2z = 15[/tex] --- (1)

[tex]x + 2(11-3z) + 2z = 15[/tex]

[tex]x + 22 - 6z + 2z = 15[/tex]

[tex]x -6z +2z = 15 - 22\\[/tex]

[tex]x-4z = -7[/tex]

[tex]x = 4z - 7[/tex] --- (4)

[tex]x + y + 2z = 10[/tex] --- (2)

[tex]x + 11 - 3z + 2z = 10[/tex]

[tex]x - 3z + 2z = 10 - 11[/tex]

[tex]x -z = -1[/tex]

[tex]x = z - 1[/tex] --- (5)

Equate (4) and (5)

[tex]4z - 7 = z - 1[/tex]

[tex]4z - z = 7 - 1[/tex]

[tex]3z = 6[/tex]

[tex]z = 2[/tex]

Substitute [tex]z = 2[/tex] in (5)

[tex]x = z - 1[/tex] --- (5)

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

[tex]x =1[/tex]

Substitute [tex]z = 2[/tex] in [tex]y =11 - 3z[/tex]

[tex]y = 11 - 3 * 2[/tex]

[tex]y = 11 - 6[/tex]

[tex]y = 5[/tex]

So, the solution is:

[tex]x =1[/tex]     [tex]y = 5[/tex]       [tex]z = 2[/tex]

Answer: 360 bacteria

Step-by-step explanation: if it triples every hour, you would need to triple the amount of hours, and multiply that by 40 since 40 was the initial bacterial count. Hope this helps:)

Answer: D

Step-by-step explanation:

Answer:

The Answer is D

The answer is d

Answer:

2 movies and 8 songs

Step-by-step explanation:

use the formula 1x + 6x = $20 and x + x = 10. so x has to equal to 10, so 1 times 8 is 8 and 6 times 2 is 12. The x’s (8 and 2) equal 10 which is what you were looking for. i don’t know if that made sense but i hope it did

Answer:

it will be a mixed number

1 7/12

Answer:

2

Step-by-step explanation:

Answer:

420

Step-by-step explanation:

maybe I don't know sorry

Answer:

answer is 420

step by step explanation