X - 2y = -10 --> x = 2y -10

3x + 5y = 25 --> 3(2y-10) + 5y = 25 --> 11y - 30 = 25 --> 11y = 55 --> y = 5

x = 2y -10 --> x = 2(5) -10 --> x =10 -10 --> x =0

Answer (0,5)

5 0

3 years ago

Negative 7 square root of 12+(-3)subtracted by 8=

jolli1 [7]

-35.248711306 Hope this helps:)

4 0

2 years ago

Read 2 more answers

Write the standard form for the scientific notation. please help fast!!!

jarptica [38.1K]

$2.32\cdot10^3=2.32\cdot1,000=2,320\\\\4.2\cdot10^4=4.2\cdot10,000=42,000\\\\4.2\cdot10^{-2}=4.2\cdot0.01=0.042$

Multiplication by 10ⁿ → move decimal n places to the right.

Multiplication by 10⁻ⁿ → move decimal n places to the left.

For n ∈ N

6 0

2 years ago

∠1 and ∠2 are vertical angles. If m 1=3x-12 and m2=72°, find the value of x

inessss [21]

Answer:

x=28

Step-by-step explanation:

vertical angles are congruent

3x-12=72

3x=84

x=28

6 0

2 years ago