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2 years ago

If odd natural numbers are less than 7, then they are prime numbers.

Mathematics

1 answer:

guajiro [1.7K]2 years ago

5 0

I think true?? i think! im really not sure but yea

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This figure is made up of a quadrilateral and a semicircle.

Arturiano [62]

Answer:

The correct option is B. The area of the figure is 40.4 units².

Step-by-step explanation:

The line AB divides the figure in two parts one is a rectangle and another is semicircle.

The distance formula is

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

The length of AB is

$AB=\sqrt{(2+3)^2+(4-2)^2}=\sqrt{25+4}=\sqrt{29}$

The length of AD is

$AD=\sqrt{(-1+3)^2+(-3-2)^2}=\sqrt{4+25}=\sqrt{29}$

Since AB=AD, therefore ABCD is a square. The area of the of square is

$A_1=a\times a=\sqrt{29}\times \sqrt{29} =29$

The area of square is 29 units².

The area of a semicircle is

$A_2=\frac{\pi}{2}r^2$

Since AB is the diameter of the semicircle, therefore the radius of the semicircle is

$r=\frac{d}{2}=\frac{\sqrt{29}}{2}$

The area of the semicircle is

$A_2=\frac{3.14}{2}(\frac{\sqrt{29}}{2})^2=40.3825$

The area of the figure is

$A=A_1+A_2=29+11.2825=40.3825\approx 40.4$

Therefore the area of the figure is 40.4 units². Option B is correct.

5 0

3 years ago

-7-5x+5x+7 simplified

AysviL [449]

Answer:

Step-by-step explanation:

adding -7 to 7, since they are both constants (no variable) gives you 0. Adding -5x and 5x since they both have an x term gives you 0x also written as 0 (0*any number is 0). this gives you a final answer of 0

4 0

3 years ago

Read 2 more answers

PLEASE PLEASE HELP ME! thank you so so much

viva [34]

Answer:

6π

Step-by-step explanation:

(135/360)×π×4²

(135/360)×π×16

=6π

6 0

3 years ago

6 ( x + 1) - 5 (x + 2)

vagabundo [1.1K]

Answer:

x-4

Step-by-step explanation:

6x+6-5x-10=

x-4

( you have to multiply what is inside the parenthases to get to the first step that i did)

4 0

3 years ago

Read 2 more answers

What is an integet generated by chance. Such as by rolling a number cube or using a graphing calculator?

Romashka-Z-Leto [24]

An integer generated by chance is an integer (a whole number) that has been generated using a method that is completely random and unaffected by bias.

4 0

3 years ago