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shepuryov [24]
2 years ago
7

Will give BRAINLIEST

Mathematics
2 answers:
Lelechka [254]2 years ago
8 0
This is the answer to the question

eimsori [14]2 years ago
7 0

Answer:

3.72 \times  {10}^{ - 11}  \div  {10}^{3}  = 3.72 \times  {10}^{ - 14} kg \\ 4.5 \times  {10}^{10}  \times  {10}^{3}  = 4.5 \times  {10}^{13} m

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In Lexie's art bag there are 11 green colored pencils, 7 blue colored pencils, and 3 red colored pencils. What is the ration of
melamori03 [73]

Answer: 11:7

Step-by-step explanation:

Number of green colored pencils=11

Number of blue colored pencils= 7

Number of red colored pencils= 3

Total number of colored pencils= 11+7+3= 21

Ratio of green colored pencils to blue colored pencils= 11:7

7 0
3 years ago
SOLVE ALL THESE EQUATION BY USING THE METHOD SUBSTITUTION ALGEBRAICALLY HERE'S ARE ALL THE EQUATION:
pav-90 [236]

Answer:

See below ~

Step-by-step explanation:

<u>Question 1</u>

  • -7x - y = -1
  • y = 8x + 16

⇒ -7x - (8x + 16) = -1

⇒ -7x - 8x - 16 = -1

⇒ -15x = 15

⇒ x = -1

⇒ y = 8(-1) + 16 = 8

⇒ Solution = <u>(-1, 8)</u>

<u></u>

<u>Question 2</u>

  • 3x + 4y = 0
  • y = -3x - 18

⇒ 3x + 4(-3x - 18) = 0

⇒ 3x - 12x - 72 = 0

⇒ -9x = 72

⇒ x = -8

⇒ y = -3(-8) - 18 = 6

⇒ Solution = <u>(-8, 6)</u>

<u>Question 3</u> (not clear)

<u>Question 4</u>

  • -8x - 7y = 0
  • y = 6x

⇒ -8x - 7(6x) = 0

⇒ -8x - 42x = 0

⇒ -50x = 0

⇒ x = 0

⇒ y = 6(0) = 0

⇒ Solution = <u>(0, 0)</u>

<u>Question 8</u>

  • 2x - 6y = -14
  • y = -5x - 19

⇒ 2x - 6(-5x - 19) = -14

⇒ 2x + 30x + 114 = -14

⇒ 32x = -128

⇒ x = -4

⇒ y = -5(-4) - 19 = 1

⇒ Solution = <u>(-4, 1)</u>

3 0
2 years ago
Reposting since it wasn’t answered. Increased points to 25.
insens350 [35]

Answer:

a,b,d,e

answered in the first question

4 0
3 years ago
What is the value of the discriminant for x2 + 5x = -7?​
Verdich [7]

Answer:

x = -1

Step-by-step explanation:

2x + 5x = -7

7x = -7

x = -1

3 0
2 years ago
How do you solve <br> -32+2a=0
Semmy [17]
If you're solving for a, you would add 32 to both sides
2a=32
then you would divide by 2
a=16
6 0
3 years ago
Read 2 more answers
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