pls help! will give brainliest to whoever answers first correctly! (70 points)

Answer:

πr + 2r

Step-by-step explanation:

Perimeter of Semicircle

The perimeter of a semicircle is the sum of the half of the circumference of the circle and diameter. As the perimeter of a circle is 2πr or πd. So, the perimeter of a semicircle is 1/2 (πd) + d or πr + 2r, where r is the radius.

Step-by-step explanation:

1. d = 22mm

circumference = πr + d

= 22/7 × 11 + 22

= 56.57 mm

2. r = 4 inches

circumference = πr + d

= 22/7 × 4 + 8

= 20.57 Inches

3. d = 10 yards

circumference = πr+d

= 22/7 × 5 + 10

Answer:

Low:10,200,8.5

High:55,260,9.3

Median:35,230,9.0

Lower Quantile:15,215,8.9

Upper Quantile:45,240,9.2

Interquantile Range:30,25,0.3

Answer:

Y = 1/4x-1

X = 4y-1

Step-by-step explanation:

layout the equations :

x+1/y = 4        y+1/x = 1/4

solve the equations, remember to switch sides switch signs solving the equations will give us the value of the letter

x+1/y = 4

x+1 = 4y

x=4y-1

***

y+1/x = 1/4

y+1  = 1/4x

y = 1/4x-1

Let first consider the equations one by one and will be solving one by one ;

[tex]{:\implies \quad \sf x+\dfrac{1}{y}=4}[/tex]

Multiplying both sides by y will lead ;

[tex]{:\implies \quad \sf xy+1=4y}[/tex]

[tex]{:\implies \quad \boxed{\sf xy=4y-1\quad \cdots \cdots(i)}}[/tex]

Now, consider the second equation which is ;

[tex]{:\implies \quad \sf y+\dfrac{1}{x}=\dfrac14}[/tex]

Multiplying both sides by x will yield

[tex]{:\implies \quad \sf xy+1=\dfrac{x}{4}}[/tex]

[tex]{:\implies \quad \sf xy=\dfrac{x}{4}-1}[/tex]

[tex]{:\implies \quad \boxed{\sf xy=\dfrac{x-4}{4}\quad \cdots \cdots(ii)}}[/tex]

As LHS of both equations (i) and (ii) are same, so equating both will yield;

[tex]{:\implies \quad \sf 4y-1=\dfrac{x-4}{4}}[/tex]

Multiplying both sides by 4 will yield

[tex]{:\implies \quad \sf 16y-4=x-4}[/tex]

[tex]{:\implies \quad \sf 16y=x}[/tex]

Dividing both sides by y will yield :

[tex]{:\implies \quad \boxed{\bf{\dfrac{x}{y}=16}}}[/tex]

Hence, the required answer is 16

Answer:

12 feet

Step-by-step explanation:

80 / 5 = 16

1 inch = 16

16 / 4 = 4

4 * 3 = 12

Answer:

33.8

Step-by-step explanation:

1) Use Phythagoras theorem to get RS ↓

[tex]9.1 ^{2} + 6 ^{2} = 118.81 \\ \sqrt{118.81 } = 10.9[/tex]

2) RS = RQ

therefore, to get the perimeter, you'll have to total up the sides of the triangle ↓

[tex]rs + rq +qt + ts \\ = 10.9 + 10.9 + 6 + 6 \\ = 33.8[/tex]

Hope this helps =)

Answer:

33.8

**Brainliest would be appreciated**

Step-by-step explanation:

Answer:

If the spinner has an even number of spaces,

1

8

. If the spinner has an odd number of spaces, more information is needed.

Explanation:

The answer depends on whether the spinner has an odd or even number of spaces.

If the spinner has an even number of numbers on it, there will be an equal number of odd and even numbers, meaning that the probability of spinning an odd number is

1

2

. This is also the probability of flipping heads on a coin. And so we have:

1

2

×

1

2

×

1

2

=

1

8

If the spinner has an odd number of numbers on it, the probability of spinning an odd number will vary. For instance, if there are 3 spaces on the spinner, the probability of spinning an odd number will be

2

3

. However, if there are 11 spaces, the probability will be

6

11

.

Step-by-step explanation:

The probability of tossing tails and spinning yellow is 1/6.

Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.

Outcomes of tossing a coin= {T,H}

Outcomes of spinner={ R,Y,B}

Now, outcomes are in the event "Toss a tails, spin yellow"

= {TY}

probability of tossing tails and spinning yellow,

= 1/2*1/3

= 1/6

Learn more about probability here:

https://brainly.com/question/11234923

#SPJ2

Answer:

140.4ft^2

Step-by-step explanation:

since all four sides are equilateral triangles, you only need to find one triangle and multiply by 4.

area of triangle = 0.5×base×height = 0.5×7.8ft×9ft =35.1ft^2

surface area of pyramid= 35.2ft^2 × 4 = 140.4ft^2

Answer:

1/10

Step-by-step explanation:

Ok so 1/100= 10/100

Answer:

I will say point b

Step-by-step explanation:

because -0.905 = -0.91 = -0.9 = b beacuse 0.905 isn't close to 1 but 0.95 is closer so i would say be

Answer:

Part 1)

Part 2)

Part 3)

Part 4)

Part 5)

Part 6)

Part 7)

Part 8)

Part 9)

Part 10)

Step-by-step explanation:

Part 1) Find the measure of angle 7

we know that

----> by corresponding angles

we have

----> given

therefore

Part 2) Find the measure of angle 4

we know that

----> by supplementary angles (form a linear pair)

we have

substitute

Part 3) Find the measure of angle 6

we know that

----> by alternate exterior angles

we have

therefore

Part 4) Find the measure of angle 1

we know that

----> by vertical angles

we have

therefore

Part 5) Find the measure of angle 16

we know that

----> by supplementary angles (form a linear pair)

we have

---> given

substitute

Part 6) Find the measure of angle 18

we know that

----> by alternate interior angles

we have

therefore

Part 7) Find the measure of angle 21

we know that

----> by alternate exterior angles

we have

therefore

Part 8) Find the measure of angle 10

step 1

Find the measure of angle 14

we know that

----> by supplementary angles (form a linear pair)

we have

substitute

step 2

we know that

---> sum of interior angles of a triangle

we have

substitute

step 3

Find the measure of angle 10

we know that

----> by vertical angles

we have

therefore

Part 9) Find the measure of angle 11

we know that

----> by supplementary angles (form a linear pair)

we have

substitute

Part 10) Find the measure of angle 12

see Part 8)

Step-by-step explanation:

Answer:

Radius:

radius is always half the length of its diameter. For example, if the diameter is 4 cm, the radius equals 4 cm ÷ 2 = 2 cm.

Diameter:

2 times the radius is the circle's diameter.

Circumference:

The formula is simply this: C = πd. In this equation, "C" represents the circumference of the circle, and "d" represents its diameter. That is to say, you can find the circumference of a circle just by multiplying the diameter by pi.the formula for circumference of a circle is 2 x pi x r(radius).

Step-by-step explanation:

Hoped this helped

Answer:

There are 0 lines here. Because the arrows (of lines) don't directly meet.

Answer:

1,2,4,8,2

Step-by-step explanation:

For the first blank, it asks you to look at the change in y-value where the x-value changes from 0 to 1. As the y-value goes from 2 to 3 in this space, it is increasing by 1.

For the second blank, it asks you to look at the change in y-value where the x-value changes from 1 to 2. As the y-value goes from 3 to 5 in this space, it is increasing by 2.

For the third blank, it asks you to look at the change in y-value where the x-value changes from 2 to 3. As the y-value goes from 5 to 9 in this space, it is increasing by 4.

For the fourth blank, it asks you to look at the change in y-value where the x-value changes from 3 to 4. As the y-value goes from 9 to 17 in this space, it is increasing by 8.

For the fifth blank, it asks you to find the rate of change for the graph using the information we previously found. As you can see, the rate of change is 2 for this exponential function, as for every x-value increasing by 1, the change in y-value is multiplied by 2. In other words, if you look at the prior answers you can see that 1*2=2, 2*2=4, and 4*2=8, and all of these changes occur while the x-value increases consistently. Therefore, the grow factor is 2 for every interval of 1.

Hope this helps!

Answer: It's D

because [tex]a^2+b^2=c^2[/tex] so [tex]c^2-b^2 =a^2\\[/tex]

Answer:

1. Non-linear positive

2.Linear positvie

3. No association

4.Linear negative

5.Non-linear negative.

Step-by-step explanation:

If this answer helped may I get brainlest.

Answer:

A = (1,6)

B = (4,6)

C = (9,6)

D = (11,6)

Since it is a strait line on six, all the points should have 6 as y. For the x's, just count how much it is away from the y-axis.

Answer:

x=1

Step-by-step explanation:

y=x²-2x-8

First, we solve for the vertex

The equation for the vertex is -b/2a

Substitution:

-b/2a

=-(-2)/(2*1)

=2/2

=1

Therefore the equation for the line of symmetry is x=1

Hope this helps!

Answer:

iv answered this question for you already in the other one

Step-by-step explanation:

hope you have a good day

Answer:

-1, 0.5, 2, 3.5

Step-by-step explanation:

1.5 is added to the previous value for each value of the sequence. -2.5+1.5 is -1; -1+1.5 is 0.5, etc.

Answer:

-1, 0.5, 2, 3.5

Step-by-step explanation:

y=x+1.5

Hope this helps! :D

Answer: 64mi^2

Step-by-step explanation:

(2*5) +(6*8)+((3*4)/2) = 64mi^2

Answer:

Graph A

Step-by-step explanation:

It’s the real numbers closer 0 then they are at 4.

Answer:

3/1 or 3:1 when simplified

so first number is three times larger then second number

Answer:

doc tor

Step-by-step explanation:

Answer:

Doc   tor

Step-by-step explanation:

Two syllable word

Answer:

the third one

Step-by-step explanation:

7 absolute is 7 absolute of any number is positive

Answer:

  (a) 136 ft

  (b) $680

Step-by-step explanation:

You want to know the perimeter length and the cost of tiling around a pool with the L-shape shown.

The sum of horizontal lengths at the bottom of the pool outline is the same as the length at the top.

The sum of vertical lengths at the left of the pool outline is the same as the length on the right.

The perimeter is the sum of horizontal and vertical lengths of the outline, so is ...

  P = 2(40 ft + 28 ft) = 136 ft

The perimeter of the pool is 136 ft.

The cost of tile is found by multiplying the cost per length by the length around the pool.

  tile cost = ($15/(3 ft))(136 ft) = $680

It will cost $680 to put tiles around the edge of the pool.

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Answer:

13.28

13.301

13.31

Step-by-step explanation:

Answer:

66.7%

Step-by-step explanation: