3 years ago

Solve the systems of equations using substitution.

Mathematics

1 answer:

statuscvo [17]3 years ago

8 0

I'm sure on boxes 1 and 3 but not on the 2nd box

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I REALLY NEED HELP ASAP!!!!!!!!!!!!!!

Dmitry [639]

Answer:

cone V≈157.08

cylinder V≈502.65

sphere V≈113.1

5 0

3 years ago

Read 2 more answers

Help meeeeeeeeeeeeeee!!!!!!

koban [17]

Answer:

2x+3=9

2x=6

x=3

3w-1=14

3w=15

w=5

7y+2=30

7y=28

y=4

5x+20=35

5x=15

x=3

6c-12=48

6c=60

c=10

8m-4=20

8m=24

m=3

7w+13=90

7w=77

w=11

12p-18=30

12p=48

p=4

9w-5=67

9w=72

w=8

10a+40=100

10a=60

a=6

9x-24=84

9x=108

x=12

7w+1=1

7w=0

w=0

your welcome

8 0

3 years ago

Read 2 more answers

I don’t get this and I need to pass it please help!!!

Novosadov [1.4K]

Answer:

Choice A x= 16, y= 9√2

Step-by-step explanation:

x= 9+7 =16

y= √9²*2= 9√2

5 0

4 years ago

Please help me out :)

arlik [135]

Answer:

$\frac{\sqrt{17} }{7}$

Step-by-step explanation:

Using the Pythagorean identity

sin²x + cos²x = 1, then

sinx = $\sqrt{1-cos^2x}$

Note that ( $\frac{4\sqrt{2} }{7}$ )² = $\frac{32}{49}$

sinΘ = $\sqrt{1-(32/49)}$

= $\sqrt{\frac{17}{49} }$ = $\frac{\sqrt{17} }{7}$

5 0

3 years ago

Let f be defined as shown.<br> What is f^-1(1)?

FinnZ [79.3K]

Answer:

From the above image when the input of f(x) is 9 the output is 1

So f^-1(1) is just the reverse when the input is 1 the output is 9

So f^-1(1) = 9

Hope this helps

6 0

3 years ago