Please help me!!! The directions are at the top!! I will give brainliest!!

Answer:

5A) radius = 9 ft

5B) diameter = 18 ft

5C) fencing length = 56.52 ft

5D) 6.35 days

Step-by-step explanation:

Radius is given when it is 9 ft of rope (outside to center of circle)

Diameter is two times radius = 18.

Circumference(fence length) = 2 * 3.14 * 9 = 56.52.

Area circle = 3.14*(9*9) = 254.34. 254.34/40 = 6.35

If my answer is incorrect, pls correct me!

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-Chetan K

Answer:The second option is correct

Step-by-step explanation:

Answer:

Radius = √75 or 5√3 or 8.7

Step-by-step explanation:

This forms a right triangle meaning you can use Pythagorean Theorem to solve for the missing side which, in this case, will equal the radius.

Let a = radius

a² + b² = c²

a² + 11² = 14²

a² + 121 = 196

a² = 75

a = √75 = 5√3 ≈ 8.7

Answer:

radius = ab = √75

Step-by-step explanation:

Triangle ABC is a right triangle so to find the radius, aka one of the sides of the triangle, we need to use the Pythagorean theorem.

ac^2 = bc^2 + ab^2 Pythagoras Theorem

14^2 = 11^2 + ab^2 Substitution

196 = 121 + ab^2 Alg

75 = ab^2 Alg

ab = √75 Alg = radius

Answer:

$30

Step-by-step explanation:

Total amount paid by the hire purchase scheme:

$60 + 6 * $45 = $60 + $270 = $330

Total amount paid in just the cash price:

$300

Difference:

$330 - $300 = $30

Answer:

perimeter of rectangles = 2 ( l + b)

34 = 2 ( x + 2 + 3x - 4 )

34 = 2 ( 4x - 2 )

34 = 8x - 4

38 = 8 x

38/ 8 = x

thus , x = 4.75 inches

Answer:

x=19/4

Step-by-step explanation:

perimeter is the sum of all sides

so

perimeter given is 34 = (x+2)+(x+2)+(3x-4)+(3x-4)

34=8x-4

34=8x

x=34/8 which reduces to 19/4

Answer:

5

Step-by-step explanation:

X + 2y = 13

Since x = 3

3 + 2y = 13

2y = 13 - 3

2y = 10

Divide both sides by 2

Y = 5

Answer: Your answer would be the first one

Answer:

D. x=44-y

Step-by-step explanation:

Just took the Unit Test on Edge and got it correct.

Answer: y = 3x - 20

Step-by-step explanation: Start with the equation y=mx+b. Remember that the slope of the parallel line, m, will be the same. Now you have y = 3x + b. Next you have to find b, the y intercept. You can do so by using the point given, (6,-2).

-2 = (3) * (6) + b

b = -20

y=mx+b         y = 3x - 20

Answer:

Please be careful with your typing [f(x)=-sqrt(x)+6 ... right? g(x)=-4*sqrt(x)-3 ... or -4*sqrt(x)+3 ... one or the other, right?

If so, you are dilating by a factor of 4, -1 versus -4 as multiplier of sqrt(x); and, translating up 3 units (6 versus 3) or 9 units (6 versus -3).

Step-by-step explanation:

Answer:

-2x+2

Step-by-step explanation:

f(x) = -4x+3 and g(x) = 3 +2x-4

Note what you put for g(x) simplifies to 2x-1

(f+g) (x) =  -4x+3+  3 +2x-4

Combine like terms

            = -2x+2

Answer:

Step-by-step explanation:

Answer:

He received $320

Step-by-step explanation:

It's $10 less than  half of last year so we add 10 to 150 which give 160 *2 (because it was half) and we get $320(the amount he got last year) All, in all this kids parents are losing money.

Answer:

The answer is $320

Step-by-step explanation:

This year, Arthur received $150 for his birthday, which is $10 less than half the amount he received last year.

So, half of the amount of money he received last year was $150+$10 = $160.

In order to find the money Arthur received last year, this number has to be multiplied by 2.

Arthur received $160*2 = $320 in total.

Answer:

x = -3

x = 7

Step-by-step explanation:

If either term is zero the product is zero

(2x + 6)(x - 7) = 0

2x + 6 = 0

2x = -6

x = -3

x - 7 = 0

x = 7

Answer:

10.

Step-by-step explanation:

It's the right end of the box.

Answer:

Step-by-step explanation:

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

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

=3x*5x+3x*4-2*5x-4*8

=15x^2+12x-10x-32

=15x^2+2x-32

Answer:

A

as u can see that g(x) at x=5 is zero in option A. so the ans will will be |x-5|

Answer:

it's A

Step-by-step explanation:

just took the text

Answer:

{3π/4 , 7π/4}

Step-by-step explanation:

2 + Tanθ = 1

tan θ = 1 -2

Tanθ = -1

θ = 3π/4 and 7π/4

Answer:

[tex]0 \le t < \infty[/tex]

Step-by-step explanation:

Given

[tex]c(t) = 3t[/tex]

Required

The domain

From the question, we understand that t represents number of yards/packages (depending on the store)

This means that:

[tex]t \ge 0[/tex] ---- the start value

[tex]t < \infty[/tex] --- the end value

Rewrite [tex]t \ge 0[/tex] as [tex]0 \le t[/tex]

So, we have: [tex]0 \le t[/tex] and [tex]t < \infty[/tex]

Hence, the domain is: [tex]0 \le t < \infty[/tex]

Answer:

[tex] \blue{x = 11.4} [/tex]

Step-by-step explanation:

See the figure.

The right triangles has legs of lengths 9 and 7.

[tex] 9^2 + 7^2 = x^2 [/tex]

[tex] x^2 = 130 [/tex]

[tex] x = \sqrt{130} [/tex]

[tex] \blue{x = 11.4} [/tex]

Answer:

A. Dilation

Step-by-step explanation:

Since the transformation you're talking about doesn't preserve the size of the triangle it would be dilation.

Answer:

not whoever wrote this question. every 10th person is surveyed. she surveyed 50 people. that mean 500 people and 50 surveyed people. then at the end the teacher said there is 1000 students. your teacher wrote you a bad question with no right answers.

Answer:

X is 2

Step-by-step explanation:

the equation is Y = 19X

when X=5, Y=95

when Y=38, X = 38/19 = 2

Answer:

x = 4.6439

Step-by-step explanation:

2^x =25

Take the log of each side

log  2^x = log 25

We know that log a^b = b log a

x log 2 = log 25

Divide each side by log 2

x = log 25  / log 2

x =4.643856

Rounding to 4 decimal places

x = 4.6439

Answer:

x = 4.6439

Step-by-step explanation:

[tex]2^{x} =25log 2^x = log 25\\log 2 = log 25x = log 25 / log 2\\x =4.643856\\x = 4.6439[/tex]

You cannot force me to answer these questions.

bestie that is worth more than 15 pts

Answer:

[tex]midpoint = ( \frac{x _{1} + x _{2}}{2} , \: \frac{y _{1} + y _{2}}{2} ) \\ = ( \frac{7 + 9}{2} , \: \frac{4 + - 1}{2} ) \\ = (\frac{16}{2} , \: \frac{3}{2} ) \\ = (8, \: 1.5)[/tex]

Answer:

P(A) = 1/2

Step-by-step explanation:

The question seems incomplete, I assume that we want to find the probability of event A.

Here we have a fair six-sided dice, so each one of the six numbers has exactly the same probability of being rolled.

Such that the possible outcomes of rolling the dice is:

{1, 2, 3, 4, 5, 6}

Now we define event A as rolling an even number.

The possible outcomes such that the event A is true are the even numbers:

{2, 4, 6}

So we have 3 outcomes out of 6.

Then the probability of rolling an even numbers, is just the quotient between the number of outcomes of even numbers (3) and the total number of outcomes (6).

Then:

P(A) = 3/6 = 1/2 = 0.5

I'll do problem 13 to get you started.

The expression [tex]4\left(\frac{2^n}{7^n}\right)[/tex] is the same as [tex]4\left(\frac{2}{7}\right)^n[/tex]

Then we can do a bit of algebra like so to change that n into n-1

[tex]4\left(\frac{2}{7}\right)^n\\\\4\left(\frac{2}{7}\right)^n*1\\\\4\left(\frac{2}{7}\right)^n*\left(\frac{2}{7}\right)^{0}\\\\4\left(\frac{2}{7}\right)^n*\left(\frac{2}{7}\right)^{1-1}\\\\4\left(\frac{2}{7}\right)^n*\left(\frac{2}{7}\right)^{1}*\left(\frac{2}{7}\right)^{-1}\\\\4*\left(\frac{2}{7}\right)^{1}\left(\frac{2}{7}\right)^n*\left(\frac{2}{7}\right)^{-1}\\\\\frac{8}{7}\left(\frac{2}{7}\right)^{n-1}\\\\[/tex]

This is so we can get the expression in a(r)^(n-1) form

Note that -1 < 2/7 < 1, which satisfies the condition that -1 < r < 1. This means the infinite sum converges to some single finite value (rather than diverge to positive or negative infinity).

We'll plug those a and r values into the infinite geometric sum formula below

S = a/(1-r)

S = (8/7)/(1 - 2/7)

S = (8/7)/(5/7)

S = (8/7)*(7/5)

S = 8/5

S = 1.6

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

Answer in fraction form = 8/5

Answer in decimal form = 1.6