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3 years ago

7

SOS bro i need help!!!!

2 answers:

Mariulka [41]3 years ago

4 0

Answer:

Step-by-step explanation:

The amswer is the first one

3 x 1 = 3

3 x -4 = - 12

3 x 5 = 15

3 x -7 = -21

Masteriza [31]3 years ago

3 0

Answer:

It’s the first one

Step-by-step explanation:

I

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Help plzzz real quick

brilliants [131]

That would be the point (3, -1)

8 0

3 years ago

I don't understand how to answer this

IgorLugansk [536]

Answer:

$\large\boxe{D)\ \dfrac{1}{2}\pi\ feet}$

Step-by-step explanation:

Step 1:

Calculate the circumference of both circles.

The formula of a circumference:of a circle with radius r:

$C=2\pi r$

The circle R:

$C_R=2\pi\left(\dfrac{2}{3}\right)=\dfrac{4\pi}{3}\ ft$

The circle S:

$C_S=2\pi\left(\dfrac{3}{4}\right)=\dfrac{3\pi}{2}\ ft$

The length of the intercepted arc for circle R is

$l=\dfrac{4\pi}{9}\ ft$

Step 2:

Calculate what the part of the circumference of the circle R is the intercepted arc:

$\dfrac{4\pi}{9}:\dfrac{4\pi}{3}=\dfrac{4\pi}{9}\cdot\dfrac{3}{4\pi}=\dfrac{1}{3}$

The same length of the circumference of the circle S is searched for the length of the intercepted arc for circle S.

Step 3:

Calculate the length of the intercepted arc for circle S:

$\dfrac{1}{3}\cdot\dfrac{3\pi}{2}=\dfrac{1}{2}\pi\ ft$

4 0

3 years ago

Plz help I will mark you brainliest, also give an explanation if you can so I understand

Ulleksa [173]

Answer:

D

Step-by-step explanation:

${a}^{2} + {b}^{2} = {c}^{2}$

${27}^{2} + {36}^{2} = 2025 \\ {45}^{2} = 2025$

8 0

3 years ago

Read 2 more answers

My brainy brother and sister added their ages together and got 15. When they multiplied their ages together, they got 54. How ol

Vinvika [58]

Given:

Sum of ages of brother and sister = 15

Product of their ages = 54

To find:

How old is the older one between the two of them?

Solution:

Let x be the age of brother and y be the age of sister.

Sum of ages of brother and sister = 15

$x+y=15$

$x=15-y$ ...(i)

Product of their ages = 54

$xy=54$

$(15-y)y=54$ [Using (i)]

$15y-y^2=54$

$0=54-15y+y^2$

Splitting the middle term, we get

$54-15y+y^2=0$

$54-9y-6y+y^2=0$

$9(6-y)-y(6-y)=0$

$(6-y)(9-y)=0$

Using zero product property, we get

$(6-y)=0\text{ and }(9-y)=0$

$y=6\text{ and }y=9$

If $y=6$ , then using (i), we get

$x=15-6$

$x=9$

If $y=9$ , then using (i), we get

$x=15-9$

$x=6$

Therefore, the age of older one is 9, the age of younger one is 6 and the difference between their ages is 3.

6 0

3 years ago

nathan plants equal sized squares of sod in his front yard.each square has an area of 6 square feet.Nathan plants total of 1000

aliya0001 [1]

1000 squares * 6 square feet each = 6000 square feet of sod

7 0

4 years ago