Ask question

Ask question

All categories

snow_tiger [21]

3 years ago

6

Can u guys please help me with my math homework.

1 answer:

Sladkaya [172]3 years ago

4 0

1.) circumference: 2(pi)r (use the pi sign) Area: pi(r^2)

2.) circumference: 2(pi)5=31.4
area: pi(5^2)=78.5

I’m not sure ab number 3 sorry :\

You might be interested in

Solve the system of equations using addition <br> x+y=9<br> x-y=3

Semmy [17]

(6,3) Is the answer________________

8 0

3 years ago

Read 2 more answers

Brainiest if correct or first<br> 1/2(6x+1/2)

Alexxx [7]

Step-by-step explanation:

1/2(6x+1/2)=0

3x+1/4=0

3X=-1/4

X=3(-1/4)

X=-3/4

OR

X=-.75

8 0

3 years ago

Read 2 more answers

Identify the values of a , b , and c in the following quadratic equation.<br><br> 2 x2 + 3 x + 7 = 0

Liula [17]

Depends on where you are in the math book but this would be the most simple way.
n= number
sqar(-1) = i

8 0

3 years ago

Read 2 more answers

100 POINTS HELP ASAP Linear Combination

notka56 [123]

Answer:

1) $x=\dfrac12$

2) $n = -3 \ \ \textsf{and} \ \ m = -4$

3) see below

4) A: 0 = 1

Step-by-step explanation:

<u>Question 1</u>

$15-0.5(4x-2)+4x=17$

$\implies 15-2x+1+4x=17$

$\implies 2x+16=17$

$\implies 2x=1$

$\implies x=\dfrac12$

<u>Question 2</u>

$\textsf{rearrange} \ n=m+1 :$

$\implies -m=-n+1$

$\textsf{add equations} \ -m=-n+1 \ \textsf{and} \ m=2n+2:\\$

$\implies0=n+3$

$\implies n=-3$

$\textsf{substitute} \ \ n=-3 \ \ \textsf{into} \ \ m=n-1:$

$\implies m=-3-1$

$\implies m=-4$

<u>Question 3</u>

subtract the second equation from the first

divide both sides by -4

substitute found value for y into first equation

solve for x

<u>Question 4</u>

$3j=k$

$k=3j+1$

$\textsf{rearrange} \ 3j=k :$

$\implies -k=-3j$

$\textsf{add equations}\ -k=-3j \ \ \textsf{and}\ \ k=3j+1:$

$\implies 0=1$

Solution = A

6 0

2 years ago

Plssss helpppp thankssssss

Vlad [161]

Answer:

5

Step-by-step explanation:

6/2 = 3

because the triangle is halved

use pythagorus 3²+4²=25

√25 = 5

so x=5

4 0

2 years ago