Find cos (B) in the triangle

Answer:

y=2x+5

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(13-25)/(4-10)

m=-12/-6

m=2

y-y1=m(x-x1)

y-25=2(x-10)

y=2x-20+25

y=2x+5

Answer/Step-by-step explanation:

Triangle PNM is an equilateral triangle, and angles in an equilateral triangle are all equal to 60.

y=60

Triangle PON is a different triangle, but all angles in a triangle add up to 180.

180-80=100

Because there are 2 angles, you do 100 divided by 2=50

x=50

Answer:

x = -2, y = -1, z = 1

Step-by-step explanation:

From (3), z = 2x + 5

From (2) y = (x - 2)/4

Sub them into (1):

5x - 6*(x - 2)/4 + 3(2x + 5) = -1

5x - 3x/2 + 3 + 6x + 15 = -1

19x/2 = -19

x/2 = -1

x = -2

y = (x - 2)/4 = (-2-2)/4 = -1

z = 2x + 5 = 2(-2) + 5 = 1

Answer:

[tex]x=90\\y=-40[/tex]

Step-by-step explanation:

Let's set up a system of equations using the given information.

x+y=50

x-y=130

We can solve this system using elimination. In this case, we can eliminate x by subtracting the two equations.

[tex]x-x+y-(-y)=50-130\\x-x+y+y=50-130[/tex]

[tex]2y=-80[/tex]

Divide both sides by 2.

[tex]y=-40[/tex]

Then, plug -40 in for y to solve for x:

[tex]x+y=50\\x+(-40)=50\\x-40=50\\\text{Add 40 to both sides}\\x=90[/tex]

Therefore..

[tex]x=90\\y=-40[/tex]

Answer: i believe in c but it could be any of em im super sorry if you get it wrong though like seriously sorry  

Step-by-step explanation:

If the ramp starts closer to the step then the angle would increase.

The angle of elevation is an angle that is formed between the horizontal line and the line of sight. If the line of sight is upward from the horizontal line, then the angle formed is an angle of elevation.

Given here the height of the step =6 inches and the distance of the ramp from the ground is 5 feet or 59.99 inches

let the angle be θ then  tanθ=6/x where x is the distance from the ramp to the ground thus with the decrease in the distance the value of tanθ increases and hence tan⁻¹(6/x) increases since the arctan function is the inverse of the tangent function.

Hence, If the ramp starts closer to the step then the angle would increase.

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Answer:

5-2.5

10-5

15-7.5

20-10

25-12.5

Step-by-step explanation:

The number of pizzas is just double the pounds of cheese.

===========================================================

Explanation:

Rule: If a set has n elements in it, then it will have 2^n subsets.

For example, there are n = 3 elements in the set {a,b,c}. This means there are 2^n = 2^3 = 8 subsets. The eight subsets are listed below.

Subsets 2 through 4 are subsets with exactly 2 elements.  Subsets 5 through 7 are singletons (aka sets with 1 element). The last subset is the empty set which is a subset of any set. You could use the special symbol [tex]\varnothing[/tex] to indicate the empty set.

For more information, check out concepts relating to the power set.

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

The problem is asking what value of n will make 2^n = 64 true.

You could guess-and-check your way to see that 2^n = 64 has the solution n = 6.

Another approach is to follow these steps.

[tex]2^n = 64\\\\2^n = 2^6\\\\n = 6[/tex]

Which is fairly trivial.

Or you can use logarithms to solve for the exponent.

[tex]2^n = 64\\\\\text{Log}\left(2^n\right)=\text{Log}\left(64\right)\\\\n*\text{Log}\left(2\right)=\text{Log}\left(64\right)\\\\n=\frac{\text{Log}\left(64\right)}{\text{Log}\left(2\right)}\\\\n\approx\frac{1.80617997398389} {0.30102999566399} \ \text{ ... using base 10 logs}\\\\n\approx5.99999999999983\\\\[/tex]

Due to rounding error, we don't land exactly on 6 even though we should.

Answer:

answers is 32.564

Step-by-step explanation:

has left for buying outfits

Answer:x<_2

Step-by-step explanation:

$520

303.93+43.96(4 reflectors)+25.25 =373.14

new outfit =73.43x

73.43x+373.14<_520

x<_2

Answer:

200/15=13.22222. x 15= 26.666. 26.66666 is between 21 & 35.

FG = 16

Step-by-step explanation:

Two pairs of consecutive are congruent so, its a kite,

Opposite sides are equal in kite so,

x + 11 = 3x + 1

or, 11 - 1 = 3x - x

or, 2x = 10

so, x = 5

FG = x + 11 = 5 + 11 = 16

Answer:

You have to give the number by which the 20% is increased in order to cross multiply and divide by a hundred to find the missing % of the decrease. Otherwise, you would simply subtract 20% from 100%, which seems unlikely to be the answer. We need more information.

Step-by-step explanation:

Answer: 15

Step-by-step explanation:

By the trapezoid midsegment theorem,

[tex]\frac{AB+CD}{2}=MN\\\frac{29+AD}{2}=22\\29+AD=44\\AD=15[/tex]

Step-by-step explanation:

3 rows of corn provided 270 ears.

therefore 1 for provides 270/3 = 90 ears

so, to get 360 ears of corn, we need 360/90 = 4 rows of corn.

Answer:

2x+8b

Step-by-step explanation:

First since 1 and 8b are on the same side mutiply them:

1bx8=8b

So our new equation is 2x+8b

Answer:

3x + x - 2x + 8 = 3x + x

2. 2 (2x + 4) - 2x = x + 18

3. If x = 5 , evaluate : 2 ( x + 3) + 3x

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

5. 3x +2x + x = x + 6

6. 2 ( x+ 4) + x = 16

Answer:

1) The probability that the mean mpg for a random sample of 25 light vehicles is 0.042341.

2) between 20 and 25 --> 21-25/2.9 = -1.38

Step-by-step explanation:

Problem #1:

P-value from Z-Table:

Problem #2:

Answer:

C. 150 degrees

Step-by-step explanation:

Angles 2 and 4 are opposite angles which means that they are congruent to each other

Answer:

150

Step-by-step explanation:

∠2 and ∠4 are vertically opposite angles and they are congruent.

Step-by-step explanation:

we need the greatest or largest common factor (LCF) to find how many bags.

method prime factorization :

beginning with 2 we divide the number as often as possible by the current prime number until there is a remainder. then we use the next higher prime number and do the same.

when we reach 1 as final result, the process ends.

135 ÷ 2 not possible, going to 3

135 ÷ 3 = 45

45 ÷ 3 = 15

15 ÷ 3 = 5

5 ÷ 3 not possible, going to 5

5 ÷ 5 = 1 end

135 = 3×3×3×5

495 ÷ 2 not possible, going to 3

495 ÷ 3 = 165

165 ÷ 3 = 55

55 ÷ 3 not possible, going to 5

55 ÷ 5 = 11

11 ÷ 5 not possible, going to 7

11 ÷ 7 not possible, going to 11

11 ÷ 11 = 1 end

495 = 3×3×5×11

315 ÷ 2 not possible, going to 3

315 ÷ 3 = 105

105 ÷ 3 = 35

35 ÷ 3 = not possible, going to 5

35 ÷ 5 = 7

7 ÷ 5 not possible, going to 7

7 ÷ 7 = 1 end

315 = 3×3×5×7

the LCF is the longest sequence of prime factors the numbers have in common.

so, again, the numbers as prime factors in comparison :

135 = 3×3×3×5

495 = 3×3×5×11

315 = 3×3×5×7

they have in common

3×3 and 5

the LCF = 3×3×5 = 45

so, she can make max. 45 treat bags.

each bag will contain

135/45 = 3 pieces of candy A

495/45 = 11 pieces of candy B

315/45 = 7 pieces of candy C

you notice, how these numbers are exactly the remaining factors of the prime factoring ? it is not a coincidence ...

notice that 45 is the maximum number of treat bags.

following the prime factor combinations she could also create fewer treat bags (but with correspondingly more content).

she could create also

1 or

3 or

5 or

9 or

15

treat bags.

Answer:

2[7x(y – 2) – 6(3y – 4)]

Step-by-step explanation:

If you go down the answer choices and find the solution, this one matches.  Look at picture for better explaining.

The expression will be equal to 2[7x(y-2) - 6 (3y - 4)].

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division.

The given expression will be solved as:-

=    2  [  7x(  y-2 ) -  6 ( 3y - 4 ) ].

=   14x ( y - 2 ) - 12 ( 3y - 4 ) ]

=   14xy  -  28x -  36y  -  48

Therefore expression will be equal to 2[7x(y-2) - 6 (3y - 4)].

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Answer:

Step-by-step explanation:

a)h,q,r,y

b) p,x,z,h,q,r,y

Answer:The probability of spinning a 3 is also 2 / 8.

Answer:

C) 1.6 million

Step-by-step explanation:

Every two years it increases by 0.15

= 150,000

Therefore, previous year + 0.15

= 1.45 + 0.15

= 1.6

Answer:

No!

Step-by-step explanation:

no explanation!

b/c no equal sign this is no equation!

so,exactly no!

Answer:

4.5 kg

Step-by-step explanation:

Weight of the puppy last year - x

1) 150 % = 1.5

2) x * 1.5 = 6.75

   x = 6.75 / 1.5

   x = 4.5 (kg)

Answer:

A

Step-by-step explanation:

First i take every answer and multiply them by 0.150. When i do this i can find the answer quickly because only one will equal the 6.75.

A equals the 6.75.

Have an amazing day!

Please rate and mark brainliest!

Answer:

3.3 seconds

Step-by-step explanation:

v(t) =140t/5t - 6 where v is velocity

The time, t when, v = 44 ft/s

Put v = 44 ft/s in the equation :

44 = 140t / 5t - 6

44(5t - 6) = 140t

220t - 264 = 140t

-264 = 140t - 220t

-264 = - 80t

Divide both sides by 80

264 / 80 = 80t/80

3.3 = t

Hence, automobile will reach a velocity of 44 ft /s after 3.3 seconds

Answer:

P-2D=N

Step-by-step explanation:

P=N+2/D

L.C.M

[tex] \binom{n + d}{1} [/tex]

Answer:

i think it's 40 I don't know.

Step-by-step explanation:

(:

Answer:

Step-by-step explanation:

A rotation

Could you please be more specific on the question?

Answer:

Rotate 90 degrees to the left and then reflect it over the x axis

Step-by-step explanation:

It's a bit odd of a question being that it like doesn't have any axis shown but if you do this to the blue guy it should look like the red guy

Answer:

You have a maximum when the parabola opens down (-x^2), and a minimum when it opens up (+x^2). In your case, it opens down because of the -. That is the special notation, the vertex of the parabola is already there.