PLEASE HELP 20 POINTS
1 Which parallelograms have congruent diagonals?

only squares

squares and rectangles

squares and rhombuses

squares, rectangles, and rhombuses

2. Which parallelograns have perpendicular diagonals?

only squares

squares and rectangles

squares and rhombuses

squares, recangles, and rhombuses​

Answer:

2) 523.3 in²

Steps:

the given polygon is a heptagon

a regular heptagon's area = 7/4 × s² × cot(180°/7)

for the given heptagon

A = 7/4 × 12² × cot(180/7) ≈ 523.28 in² = 523.3 in² (rounded)

Answer:

$3

Step-by-step explanation:

cost of tank tops

20 / 5 = $4 each

cost of t-shirts

35 / 5 = $7 each

7 - 4 = $3

Answer:

$3

Step-by-step explanation:

1.Approach

To solve this problem, one must first find the cost of each product. This can be done by diving the price by the amount of each product. After finding the unit price of each product, one will subtract the cost of the tank-top from the cost of the t-shirt.

2.The unit price of a t-shirt

It is the given that 5 t-shirts cost $35. Divide the price of the shirts by the number of shirts to find the cost of each individual shirt.

35 ÷ 5 = 7

Each individual t-shirt costs $7.

3.The unit price of a tank-top

It is given that 5 tank-tops cost $20. Divide the price of the tank-tops by the number of tank-tops to fund the unit price of each tank-top.

20 ÷ 5 = 4

Each tank-top costs $4.

4.Find out how much more each shirt costs

Now subtract the price of the unit price of the tank-top from the unit price of the t-shirt.

(t-shirt) - (tank-top)

= 7 - 4

= 3

Answer:

23333333333333

Step-by-step explanation:

first this then that then this then that

Answer:

x = 45°

Step-by-step explanation:

We know that (2x + 45)° and x° are adjacent angles, so they add up to 180°.

(2x + 45) + x = 180

3x + 45 = 180

3x = 180 - 45

3x = 135

x = [tex]\frac{135}{3}[/tex]

x = 45°

Answer:

Step-by-step explanation:

think it would be b

Answer:

x = - 6, x = 6

Step-by-step explanation:

[tex] \frac{9}{x} = \frac{x}{4} \\ \\ x \times x = 9 \times 4 \\ \\ {x}^{2} = 36 \\ \\ x = \pm\sqrt{36} \\ \\ x = \pm 6 \\ \\ x = - 6, \: \: x = 6[/tex]

Answer:

44 + 45 = 99° divided by 2 = 49.5 (you can round to 49)

Answer:

Getting an odd number would be 8/15 and the multiple of six would be 2/15

Answer:

5

Step-by-step explanation:

5

Answer:

5

Step-by-step explanation:

Answer:

Compound interest earns interest on the principal plus any previous interest earned.

Step-by-step explanation:

compound interest gets its name because the interest keeps on 'compounding' which means earning interest on interest

The correct best describes the difference between simple and compound interest is,

⇒ Compound interest earns interest on the principal plus any previous interest earned.

Option 3 is true.

A quick and easy method of calculating the interest charge on a loan is called a Simple interest.

We have to given that;

To defined best describes the difference between simple and compound interest.

Now, We know that;

Compound interest pays interest on your previous balance plus your previous earned interest; simple interest pays interest only on your original balance.

Hence, The correct best describes the difference between simple and compound interest is,

⇒ Compound interest earns interest on the principal plus any previous interest earned.

Learn more about the Interest visit:

https://brainly.com/question/7639734

#SPJ3

Answer:

Letter A. 50,000 + 100 > 75,000

pls give me a brainly's and I hope this answer can help you

Answer:

A. 50,000+100× = 75,000

Step-by-step explanation:

there you go that is the correct answer

 If Ed earns $100 from each extra deal, then $25,000 divided by $100 equals 250. Ed sold 250 computers last year. The correct equation is (A) 50,000 + 100X = 75,000. Base Salary + (Commission Fee x Computers Sold) = Total Income, where the unknown "X" is the number of computers sold by Ed.

Answer:

x = 12.206555

Step-by-step explanation:

10^2 + 7^2 = 149

Sqrt(149) = 12.206555 = x

x ≈ 12.2, 12

Therefore, the value of the hypotenuse [tex]x[/tex] is [tex]12[/tex].

What is the pythagorean theorem?

The Pythagorean theorem, or Pythagoras' theorem, is a fundamental relation in Euclidean geometry among the three sides of a right triangle.

It states that the area of the square whose side is the hypotenuse (the side opposite the right angle) is equal to the sum of the areas of the squares on the other two sides.

Here given that,

[tex]B=7,P=10[/tex]

As we know,

[tex]H^2=B^2+P^2[/tex]

Substitute the given values in the formula is

[tex]x^2=(7)^2+(10)^2\\\\x^2=49+100\\\\x^2=149\\\\x=\sqrt{149}\\\\x=12[/tex]

Hence, the value of the [tex]x[/tex] is [tex]12[/tex].

To know more about the Pythagorean theorem

https://brainly.com/question/14930619

#SPJ2

Answer: Kim got 13 questions wrong.

Step-by-step explanation: First find how many questions were 75% of 52 questions since 3/4 is equal to 75%. Then subtract that amount (which is 39) from 52 and you get 13.

Answer:

Step-by-step explanation:

Do u see any similarities between the numbers? Both 12 and -4 have a variable(N). 8 and -7 dont have a variable, so u have to calculate them individually.

One thing to remember is just because there is a minus sign(-) or a plus sign(+) does not mean its addition or subtraction. its the value of the number. the sign to the left of the number is its value. so left of 12 is plus(+), so its a positive. left of 4 is a minus sign(-) so its a negative 4. lastly, left of 7 is minus sign(-), which means its negative 7. now u add.

lets add the variables first:

12n + (-4n) = 8n

add the regular numbers:

8 + (-7) = 1

so its 8n + 1

Answer:

Given circle:

The center is at (4, 0) and the radius is 5 units

Lets find the distance from (7, 2) to the center of the circle:

Since d < 5, the point (7, 2) lies inside the circle

Answer:  D 28.26

Step-by-step explanation:

A=pi r^2    or pi times r squared.  R= half of the diameter so the radius of the circle is 3 cm.   If the radius is 3 cm 3^2= 9 and 9*3.14=28.26

Step-by-step explanation:

A straight line adds up to 180°

m+3m=180°

4m=180°

m=45°

3m=45°

angle CBD=3(45)

=135°

Answer:

c, a, b

...................

Answer:

x = 1.73

y = 2

Step-by-step explanation:

tan 30 = 1/x

0.57735 = 1/x

x = 1.73

sin 30 = 1/y

0.5 = 1/y

y = 2

Answer:

−0.965925826289068

Step-by-step explanation:

sin 255 = −0.965925826289068

Answer:

11/2 is 5 1/2 this is which is 5 remainer 1 if you are a lower grade. If not then the complete form is 5.5

Step-by-step explanation:

Answer:

find the length??

Step-by-step explanation:

you do understand that length means finding how long something is right?

Answer:

no

Step-by-step explanation:

Answer:

No. the correct answer is 0.195.

Step-by-step explanation:

Answer:

No the answer is 0.195

Step-by-step explanation:

Answer:

it's 800 ft

Step-by-step explanation:

because again when you want to find the area of anything you mulipuly so

10 x 20= 200 then you get the 200 and times it by 4 so 200 x 4 = 800

hope this helps!