I was never taught how to do this... some one help me.

Answer:

B

Step-by-step explanation:

i Don’t know if I’m right

Let me know by the way

i just guessed

X = 2 cm

Y = 1. cm

Check me if I'm Wrong.

Answer:

65 in

Step-by-step explanation:[tex]a=\sqrt{b^2+c^2-2bc\cos(A)}}=\sqrt{35^2+31^2-2\times35\times31\cos(162)}=65 in[/tex]

Answer:

4g-2/5

Step-by-step explanation:

Answer: 5

Step-by-step explanation:

8/10 = 4/N

0.8 = 4/N

0.8N  = 4

N = 4/0.8 = 5

Answer:

2y-×+12=0

Step-by-step explanation:

ıf two lisesi are perpendicular to each other the product of their slope is -1 2×+y = -8 y=-2×-8 m =-2 m×-2=-1 m = -1/-2 =1/2 equtaion of a straight line with a known point a slope ( y - y1) = m (×-×1) later ( y+4) = 1/2 (×-4) later 2y+8 =×-4 2y -×+12=0 my english is bad i hope it was helpful

Answer:

A. y = cos x - 2

Step-by-step explanation:

The lower limit of the integral is -∞, since √n - √(n + 1) ≤ -1 for all n, and

[tex]\displaystyle\sum_{n=0}^\infty (\sqrt n - \sqrt{n+1}) = -\sum_{n=0}^\infty\dfrac1{\left|\sqrt n + \sqrt{n+1}\right|} \ge -\sum_{n=0}^\infty \frac1{n^{1/2}}[/tex]

and the sum on the right is a divergent p-series.

The upper limit of the integral is ln(2). Recall that for |x| < 1,

[tex]\displaystyle \sum_{n=0}^\infty x^n = \frac1{1-x}[/tex]

Integrating both sides gives

[tex]\displaystyle \sum_{n=0}^\infty \frac{x^{n+1}}{n+1} = -\ln(1-x) + C[/tex]

When x = 0, it follows that C = 0. As x → -1 from above, we find

[tex]\displaystyle \sum_{n=0}^\infty \frac{(-1)^n}{n+1} = \ln(2)[/tex]

The limit in the integrand is e, since

[tex]\displaystyle \lim_{t\to\infty}\left(1+\frac1{e^t}\right)^{e^t} = \lim_{n\to\infty}\left(1+\frac1n\right)^n = e[/tex]

where we replace n = eᵗ, so both n and t → ∞.

The derivative in the exponent of the integrand is

[tex]\dfrac{d}{dx}\dfrac{x^2}{\sin^2(x)+\cos^2(x)} = \dfrac{d}{dx}x^2 = 2x[/tex]

So, the original expression simplifies significantly to

[tex]\left(\displaystyle \int_{-\infty}^{\ln(2)} e^{2x} \, dx\right)^2[/tex]

The remaining integral is trivial:

[tex]\displaystyle \int_{-\infty}^{\ln(2)} e^{2x} \, dx = \frac12 e^{2\ln(2)} = 2[/tex]

and so the expression has a value of 2² = 4.

Answer:

3, 245 is less than 8, 407

Step-by-step explanation:

3, 245 < 8, 407

Answer:

Dilate, Reflect

Not congruent, dilations are used

Step-by-step explanation:

Dilate Figure K by a factor 3 to get the white shape.

Reflecting the resulting figure over the x-axis will give you Figure L

Step 1: Dilate by a scale factor of 3

Step 2: Reflect over the x-axis

Since dilations are used, the shapes are not congruent as they change the side lengths and area.

-Chetan K

Answer:

-3a-7

Step-by-step explanation:

-3(a)   -3(7)    

14-3a-21      

-3a-7

Answer:

119

Step-by-step explanation:

round 7 up

I'm happy to help!

Answer:

Adult tickets are $14

Student tickets are $8

Step-by-step explanation:

let's say that [tex]\tt s=student~ticket\\\\[/tex]

And [tex]\tt a=adult~ticket[/tex]

on the first day we have:

[tex]\tt 3s+a=38[/tex]

On the second day we have

[tex]\tt3s+2a=52[/tex]

now we have a system of 2 equations with 2 unknown

[tex]\tt 3s+a=38[/tex]

[tex]\tt 3s+2a=52[/tex]

we will multiply the first equation with -1

[tex]\tt -3s-a=-38\\\tt ~3s+2a=52[/tex]

we solved the system and

a= $14,  forthe adult ticket

s= $8 for the student ticket

Have an Awesome day!

2,680 pounds of meat

Step-by-step explanation:

Combine the meat:

116 + 18 = 134

Multiple the total amount of pounds by the number of meatballs:

20 × 134 = 2,680

Answer = 2, 680 pounds are needed

Answer:

b(n) = 15 - 7(n - 1)

Step-by-step explanation:

Answer:

aₙ = 11 - 9(n - 1)

Step-by-step explanation:

2 - 11 = (-7) - 2 = -9

So it is an arithmetic sequence

a₁ = 11

a₂ = 2 = 11 + (-9) = 11 + (2 - 1)*(-9)

a₃ = -7 = 2 + (-9) = 11 + (-9) + (-9) = 11 + (3 - 1)*(-9)

.....

aₙ = 11 + (n - 1) * (-9)

or

aₙ = 11 - 9(n - 1)

Using the uniform distribution, it is found that the mathematical expression for the probability density function of battery recharging time for this scenario is given by:

[tex]f(x) = \frac{1}{40}, 70 \leq x \leq 110[/tex]

[tex]f(x) = 0[/tex], elsewhere.

It is a distribution with two bounds, a and b, in which each outcome is equally as likely.

The probability density function is:

[tex]f(x) = \frac{1}{b - a}, a \leq x \leq b[/tex]

[tex]f(x) = 0[/tex], elsewhere.

In this problem, the actual recharging time required is uniformly distributed between 70 and 110 minutes, hence a = 70, b = 110, and the density function is:

[tex]f(x) = \frac{1}{40}, 70 \leq x \leq 110[/tex]

[tex]f(x) = 0[/tex], elsewhere.

More can be learned about the uniform distribution at https://brainly.com/question/13889040

Answer:

B

Step-by-step explanation:

x² - 6x = 0

x² - 6x + (6/2)² = (6/2)²

x² - 6x + 9 = 9

(x - 3)² = 9

So B

Transforming the ODE yields

[tex]L\left\{y'' - y'\right\} = L\left\{e^{-3t}\right\}[/tex]

[tex](s^2 Y(s) - sy(0) - y'(0)) - (s Y(s) - y(0)) = \dfrac1{s+3}[/tex]

[tex](s^2 - s) Y(s) = \dfrac1{s+3}[/tex]

[tex]Y(s) = \dfrac1{(s^2 - s)(s+3)} = \dfrac1{s(s-1)(s+3)}[/tex]

Partial fractions:

[tex]Y(s) = \dfrac as + \dfrac b{s-1} + \dfrac c{s+3}[/tex]

[tex]\implies 1 = a(s-1)(s+3) + b s(s+3) + c s(s - 1)[/tex]

[tex]\implies 1 = -3 a + (2 a + 3 b - c) s + (a + b + c) s^2[/tex]

[tex]\implies \begin{cases}-3a=1 \\ 2a+3b-c=0 \\ a+b+c=0\end{cases} \implies a=-\dfrac13, b=\dfrac14, c=\dfrac1{12}[/tex]

[tex]\implies Y(s) = -\dfrac13 \times \dfrac1s + \dfrac14 \times \dfrac1{s-1} + \dfrac1{12} \times \dfrac1{s+3}[/tex]

Take the inverse transform:

[tex]\boxed{y(t) = -\dfrac13 + \dfrac{e^t}4 + \dfrac{e^{-3t}}{12}}[/tex]

Answer:

(1, 5)

Step-by-step explanation:

The solution to the system of equations is the point of intersection of the two lines.  From inspection of the graph, the point of intersection is at (1, 5).

Proof

The solution to a system of equations is the point at which the two lines meet.  

⇒ g(x) = f(x)

⇒ 3x + 2 = |x - 4| + 2

⇒ 3x = |x - 4|

⇒ 3x = x - 4   and   3x = -(x - 4)

⇒ 3x = x - 4

⇒ 2x = -4

⇒ x = -2

Inputting x = -2 into the 2 equations:

⇒ g(-2) = 3 · -2 + 2 = -4

⇒ f(-2) = |-2 - 4| + 2 = 8

Therefore, as the y-values are different, x = -2 is NOT a solution

⇒ 3x = -(x - 4)

⇒ 3x = 4 - x

⇒ 4x = 4

⇒ x = 1

Inputting x = 1 into the 2 equations:

⇒ g(1) = 3 · 1 + 2 = 5

⇒ f(1) = |1 - 4| + 2 = 5

Therefore, as the y-values are the same, x = 1  IS a solution

and the solution is (1, 5)

Answer:

No

Step-by-step explanation:

To calculate how much fence is needed we need to calculate the perimeter NOT area.

P = 2L+2W

P =2(6.75)+2(4 2/3)

P = 13.5 + 9 1/3

P = 22 5/6

Because she only has 22 yards she does not have enough to go all the way around.
Hope this helps and brainliest please

Answer:

No

Step-by-step explanation:

the perimeter is 22.7 she is approximately .7 off

Answer:

a.) 3/8n

b.) 3n+25

c.)4n-9

d.)1/2n-8

e.)2n-5

f.)50-3n

g.)2n+7

h.)2/5n +9

Step-by-step explanation:

A triangle has three sides, the first, second, and the add up to 24, since that's the perimeter

The second side = the first (let's call it L) + 2

The third is two more then the second, so L + 2 + 2

first side = L

second = L + 2

third = L + 2 + 2

add all three together, L + L + 2 + L + 2 + 2 = 24

combine the L's and 2's

3L + 6 = 24

subtract 6 from both sides

3L = 18

divide by 3

L=6

so the first side is 6, the second is 8, the third is 10

Answer:

∠B = 17°

Step-by-step explanation:

Los ángulos verticales son congruentes, por lo tanto

5x + 7 = x + 15 ( restar x de ambos lados )

4x + 7 = 15 ( resta 7 de ambos lados )

4x = 8 ( dividir ambos lados por 4 )

x = 2

Por lo tanto

∠B = 5x + 7 = (5 × 2) + 7 = 10 + 2 = 17°

Answer: 3%

Step-by-step explanation:

first roll 1 out of 6 chance or 16%

second roll is also 1 out of 6 chance or 16%

Mulitple .16 by .16 to get .0256 rounded to whole percentage 3%

Step-by-step explanation:

the first question

x²+x+5

when x is -4

(-4)²+(-4)+5

16-4+5

12+5

17

hope this was helpful

Answer:

75+3-1 =77

Step-by-step explanation:

444+225752-57560+55-577=77

[tex] \huge{ \rm{Question:}}[/tex]

Two trees are growing in a clearing. The first tree is 12 feet tall and casts an 8-foot shadow. The second tree casts an 11-foot shadow. How tall is the second tree to the nearest tenth of a foot?

[tex] \huge{ \rm{Answer:}}[/tex]

The second tree is 59.5 feet tall

HOPE THIS HELPS^^