Find the perimeter of the figure below composed of an isoceles trapezoid and one semicircle rounded to the nearest tenth place.​

Answer:

10*3=5(x-4)(doing cross multiplication)

30=5x-20

30-20=5x

10/5=x

2=x

Step-by-step explanation:

Answer:

x=10 so the proportion is 3/6 =5/10

Step-by-step explanation:

5(x-4) = 3*10, cross multiply

5x -20 =30, distribute in parenthesis

5x = 30 +20, add 20 on both sides

5x=50, combine like terms

x= 10, divide both sides by 5

Answer: 837

Step-by-step explanation:

Answer:

110

Step-by-step explanation:

Answer:

Each shirt would cost $2.75

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

y2 - y1/ x2 - x1

3-2/ 5-4 = 1/1 = 1

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

Step-by-step explanation:

I'll focus on -10v^2=-810 and will aim to find the solution, v.  Dividing both sides by -10, we get v^2 = 81, so that v = ±9 (two roots).

The other equation, 7r^2 = -70, has no real solutions.

r^2 = -70 yields r = ±i√10 (two imaginary solutions)

Answer:

8

Step-by-step explanation:

By intersecting tangent secant theorem:

[tex] {x}^{2} = 4(4 + 12) \\ \\ {x}^{2} = 4 \times 16 \\ \\ {x}^{2} = 64 \\ \\ x = \sqrt{64} \\ \\ x = 8[/tex]

Answer:

6.9

Step-by-step explanation:

If a secant segment and tangent segment are drawn to a circle from the same external point, the product of the length of the secant segment and its external part equals the square of the length of the tangent segment

x² = 4 * 12

x² = 48

Take the square root of both sides

x = 6.9282032303

Rounded

x = 6.9

Answer:

shen's new area will be 1200 ft ^ 2

It will be 2 times the original

Donna should increase the length by 5 times

Step-by-step explanation:

Original length = 40

New length = 30 x 4 = 120

Original width = 20

New width = 20 x 5 = 100

120 x 100 = 12000 ft^2

12000/600 = 20

It will be 20 times larger

For Donna:

ex:

length = 1

width = 2

Area = 2

He wants it to be 15 times 2

Lisa says increase 4 times

2 x 3 = 6

30/6 = 5

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

a) 120 ft x 100 ft = 12000 [tex]ft^{2}[/tex]

b) 20 times

c) 5 times

Step-by-step explanation:

a) 30x4 = 120

20x5 = 100

120x100 = 12000

b) 12000/600 = 20

c) 15/3 = 5

Answer:

I think C but I could be wrong

Step-by-step explanation:

Answer:

60%

=60/100

=6/10

=3/5

=3:5

Answer:

Alternate exterior angles

Step-by-step explanation:

Answer:

the answer would be 105!!

Step-by-step explanation:

5×3=15

15×7=105 aka our answer

Answer:

C brainliest?

Step-by-step explanation:

Answer:

AB = WX BC=XY CD=ZY DA=WZ

Step-by-step explanation:

Answer:

[tex]\sqrt{209}[/tex]

Step-by-step explanation:

[tex]\sqrt{15^{2} -4^{2} } =\sqrt{209}[/tex]

Answer:

8

Step-by-step explanation:

Answer:

[tex]pH = 13[/tex] --- Oven Cleaner

[tex]pH = 6.2[/tex] --- Water

[tex]pH =7.4[/tex] --- Blood

[tex]pH = 2.2[/tex] --- Vinegar

Step-by-step explanation:

The given molar concentration are:[Missing from the question]

Oven Cleaner: [h+] = [tex]10^{-13}[/tex]

Water: [h+] = [tex]0.0000007[/tex]

Blood: [h+] = [tex]0.00000004[/tex]

Vinegar: [h+] = [tex]0.0063[/tex]

Required

Determine the pH

pH is calculated using:

[tex]pH = -\log(h+)[/tex]

So, we have:

Oven Cleaner:

[tex]pH = -\log(10^{-13})[/tex]

Using a calculator, we have:

[tex]pH = 13[/tex]

Water:

[tex]pH = -\log(0.0000007)[/tex]

Using a calculator, we have:

[tex]pH = -1*-6.2[/tex]

[tex]pH = 6.2[/tex]

Blood:

[tex]pH = -\log(0.00000004)[/tex]

Using a calculator, we have:

[tex]pH = -1 * -7.4[/tex]

[tex]pH =7.4[/tex]

Vinegar:

[tex]pH = -\log(0.0063 )[/tex]

Using a calculator, we have:

[tex]pH = -1 * -2.2[/tex]

[tex]pH = 2.2[/tex]

Answer:

C.  69°

Step-by-step explanation:

The sum of interior angles in a triangle is equal to 180

two of the angles are given to find the third one we subtract their sum from 180

180 - (36+75) = 69 degrees

Answer:

48°

Step-by-step explanation:

pls mark me as brainlist

Answer:

8÷4+7-3 =6

8÷4+2-1 =3

6÷2+5-1 = 7

5÷1+6-2= 9

0÷5+4+3= 1

(1) The missing numbers are 2 and 5

(2) The missing numbers are 4 and 0

(3) The missing numbers are 6 and 8

(4) The missing numbers are 1 and 9

(5) The missing numbers are 7 and 3

The solution to the given problem is as follows;

In order of mathematical operation, we resolve division first before addition and finally subtraction.

In this problem we are to choose numbers from 0 to 9 and assume that no number will be repeated.

(1) (8 ÷ 2) + (5 - 3) = 6

⇒  4 + 2 = 6

so the missing numbers are 2 and 5

(2) (4 ÷ 4) + (2 - 0)= 3

⇒  1   +  2  = 3

so the missing numbers are 4 and 0

(3) (6 ÷ 2) + (6 - 1) = 8

⇒ 3 + 5 = 8

so the missing numbers are 6 and 8

(4) (5 ÷ 1) + (6 - 1) = 9

so the missing numbers are 1 and 9

(5)  (0 ÷ 7) + (4 - 3) = 1

so the missing numbers are 7 and 3

Thus, all the numbers from 0 to 9 have been used and non was repeated.

Learn more here: https://brainly.com/question/1871940

Answer:

4 l

the total ml of milk for 20 people is 4000ml and not 400 ml. 4000ml converted to litres is 4l

Step-by-step explanation:

total amount of milk for 20 people = 200 x 20 = 4000ml

1000 ml = 1 liter

4000ml /1000 = 4 l

Answer:

The correct answer is c

Step-by-step explanation:

because I studied the histogram very closely.

Hope this helps mark me as Brainliest please it would really make my day

Answer:

Third one

Step-by-step explanation:

as you can tell by the graph,

less than 6 dogs weighed 18-19 pounds

but some dogs did weigh 14-15 pounds

but most of the dogs didn’t weigh 18-19, but instead 16-17

but the only correct one is that 4 dogs weighed 18-19 pounds

Answer:

This needs more information for it to be solved.

Step-by-step explanation:

Are there answer choices?

or a chart with specific information of the appropriate measurements that can be put into the equation to solve it?

I wish i could give you a proper answer, but without the numbers I can't answer this for you. I'm sorry.

Answer:

There are no numbers

Step-by-step explanation:

Answer:

10 i believe

Step-by-step explanation:

Answer:

C = 5pi inches or approximately 15.7 inches

Step-by-step explanation:

The circumference of a circle is given by

C = pi *d

The diameter is given by d=5

C = pi *5

If we use pi is approximated by 3.14

C = 3.14 *5 =15.7

C = 5pi inches or approximately 15.7 inches

Answer: no

Step-by-step explanation:

if diego car can hold 14 gallons and eveery day they use 0.6 0.6x25 is 15 which means that they can drive 15 days in all so 15-1.5 13.5 so they can only drive for 13.5 days

hope this helps :)

Answer:

No, Diego's family cannot drive the car for 25 days without the warning light coming on.

Step-by-step explanation:

Find how much fuel they will use in 25 days by multiplying 25 by 0.6, since the car uses 0.6 gallons each day:

25(0.6)

= 15

Subtract this from 14 to see how much fuel will remain, starting from a full tank:

14 - 15

= -1

The number is negative, meaning that driving the car for 25 days will use up all of the fuel. So, the warning light will come on.

No, Diego's family cannot drive the car for 25 days without the warning light coming on.

Answer: 45°

Step-by-step explanation: add the angles together to get a total of 180°

Answer:

The radius is 4 units, and the equation of the circle is:

(x - 3)^2 + (y + 5)^2 = 16

Step-by-step explanation:

A circle centered at the point (a, b) and with a radius R, is written as:

(x - a)^2 + (y - b)^2 = R^2

In the image, we can see that a segment that cuts the circle in two halves is the segment between the points:

(-1, -5) and (7, - 5)

The distance between these points is the diameter of the circle.

Remember that the distance between two points (x₁, y₁) and (x₂, y₂) is:

D = √( (x₂ - x₁)^2 + (y₂ - y₁)^2)

Then in this case, the distance between the known points is:

D = √( (7 - (-1))^2 + (-5 - (-5))^2)

D = √( 8^2) = 8

The diameter of the circle is 8

Then the radius is:

R = 8/2 = 4

the radius is 4.

Now, to find the center of the circle we just need to go to any of the two extremes of the interval and count 4 units towards the center of the circle, this is:

(-1 + 4, -5) = (3, -5)

or

(7 - 4, -5) = (3, -5)

Then the center of the circle is the point (3, -5) and the radius is R = 4

The equation of the circle is:

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

(x - 3)^2 + (y + 5)^2 = 16