3 years ago

Solve the system.

1 answer:

3 0

X= -2
Y= -1
Z= 1
You may use solve this problem by substituting the values as well. If everything goes wrong , go for Cramer’s rule

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Write the following proportion: 8 is to 64 as 2 is to X

Andrews [41]

1 way
$\frac{8}{64} = \frac{2}{x} \\ \\ 
 \frac{8:4}{64:4} = \frac{2}{x} \\ \\ 
 \frac{2}{16} = \frac{2}{x}$ ⇔ x = 16
......................................................
2.way
$\frac{8}{64} = \frac{2}{x}$
We multiply the cross

$8x = 2 * 64
8x = 128
x = 16$

3 0

3 years ago

Read 2 more answers

PLZ HELP!! NEED QUICKLY!! Given: ∆ABC ≅ ∆DEF. Find DF and m∠B.

Sergeu [11.5K]

Answer:

DF = 3

m<B = 28 degrees

Step-by-step explanation:

Hope that helps!

4 0

3 years ago

A hot air balloon is 10 meters above the ground and rising at a rate of 15 meters pre min. Another ballon is 150 meters above th

Alisiya [41]

I think they will meet in 4 minutes.

Explanation
10+15+15+15+15=70
150-20-20-20-20=70
Every minute the first balloon goes up 15 meters and the second balloon goes down 20 meters.

6 0

3 years ago

Can anyone help me solve these please

pickupchik [31]

R^2+(ab)^2= (ao)^2
ab=6
ao=11.7

Plug in

r^2+6^2=11.7^2

simplify

r^2+36= 136.89
-36 both sides

r^2=100.89
square root both sides

r= 10.04 rounded 10

6 0

3 years ago

Given n//m prove m and 3 = m angle 5

Alla [95]

Answer:

Step-by-step expla

5 0

3 years ago