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rosijanka [135]
3 years ago
6

What are sums of two integers with different signs that equal -6

Mathematics
1 answer:
pentagon [3]3 years ago
6 0
Your answers are  -10 and 4

-10+4=-6
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Simultaneous equations<br> x^2+3xy=10<br> x=2y
satela [25.4K]

9514 1404 393

Answer:

  (x, y) = (-2, -1) or (2, 1)

Step-by-step explanation:

Substitute for x in the first equation:

  (2y)^2 +3(2y)y = 10

  10y^2 = 10

  y^2 = 1

  y = ±1

  x = 2y = ±2

Solutions are (x, y) = (-2, -1) or (2, 1).

8 0
2 years ago
Find 2 numbers who product is 15 and sum is 16.​
Marizza181 [45]

Answer:

15 and 1

Step-by-step explanation:

x and y are two numbers.

Two equations:

x · y = 15

x + y = 16

Rearrange one of the equations (I'll rearrange the sum equation):

x + y = 16

x = 16 - y

Substitute that to the other equation and solve for y:

x · y = 15

(16 - y) · y = 15

16 - y · y = 15

16 - y² = 15

-y² = 15 - 16

-y² = -1

y² = 1

y = √1

y = 1

Now substitute that to any of the equation and solve for x (in here, I'll choose the multiplication one):

x · y = 15

x · 1 = 15

x = 15

Now verify:

15 · 1 = 15

15 + 1 = 16

This is correct

6 0
3 years ago
Adina a colectionat 32 de cartonase cu fluturi. Ea schimba 8 cartonase cu fluturi pentru cartonase cu pesti. Daca un cartonas cu
dexar [7]


 32-8=24[cartonase cu fluturi mai are]
8 ori 3=24[cartonase cu pesti]
24+24=48[cartonase are in total]

8 0
2 years ago
1.
Mumz [18]

Answer:

B. P′ (−4, 0)

Step-by-step explanation:

You can look at the graph. The X-axis always goes first. SO -4 is first because it's on the x-axis. ANSWER= (-4, 0)

7 0
2 years ago
Use any method you like to find the measure of angle A
lutik1710 [3]
A = 71.5 degrees (1 dp)

cos(A) = (21^2 + 16^2 - 22^2) / (2 x 21 x 16)
= 0.31696...
A = cos^-1(0.31696...) = 71.5 degrees
4 0
2 years ago
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