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maw [93]
3 years ago
13

Help! Thank you in advance!

Mathematics
2 answers:
mel-nik [20]3 years ago
5 0

Answer:

option 3

both (3, 2) and (2, -1) are solutions

Mazyrski [523]3 years ago
4 0

Answer:

C

Step-by-step explanation:

-3x + y = -7

use (3, 2) as plug ins for x and y

-3x + y = -7 (rewrite)

-3 x 3 + 2 = -7 (solve)

-3 x 3 = -9

-9 + 2 = -7

same with the other numbers (2, -1)

but i'm lazy

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Simplify w1/2 and w1/3
mars1129 [50]

Answer:

They are on their simplified form.

Step-by-step explanation:

Since these numbers are prime numbers we can't simplify them. But we can change them to decimal.

1/2=0.5

1/3=0.3 (in which 3 repeats itself)

Hope this helps ;) ❤❤❤

4 0
3 years ago
Is this correct? If not, please tell me the correct answer!!!
White raven [17]

Answer:

That is correct

Step-by-step explanation:

180° rotation about origin just means that you have to flip the pre-existing image across the x-axis

Good job!

3 0
4 years ago
Answer all these guestions corectly and i will be so thankfull and will mark u brainiest.
Lana71 [14]
1) A = π r² = 22/7 x 10² = 314.28 in²

2)A = π r² = 22/7 x 9² = 254.57 mm²

3) radius = 1/2 diameter
r = 1/2 x 3 = 1.5 in

A = π r² = 22/7 x 1.5² = 7.07 in²


4)A = π r² = 22/7 x 14² =616 cm²


5) radius = 1/2 diameter
r = 1/2 x 1.5 = 0.75 ft

A = π r² = 22/7 x 0.75² = 1.76 ft²
4 0
3 years ago
Read 2 more answers
Two planes start from los angeles international airport and fly in opposite directions. the second plane starts 1/2 hour after t
mixer [17]
Let x = first plane's speed.  
We have the equation:
 2 hours * x km/h + 1.5 hours * (x+60) km/h = 3135 km. 
 3.5 hours*x km/h + 90 km = 3135km
 3.5hours*x km/h = 3045km 
 x = 870 km/h. 
 The first plane is traveling at 870 km/h, therefore since it is 60 km/h faster, the second plane is traveling at 930 km/h.
6 0
4 years ago
A bird owner wants to purchase birdseed from the local pet store. Sunflower seeds sell for $8 per pound and regular bird seed se
murzikaleks [220]
If he buys 2 lbs of sunflower seed and 2 lbs of regular seed he will have 4 lbs of seed, for what he paid 16+12=28 dollars
so 28/4=7 dollars per pound <span />
6 0
3 years ago
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