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2 years ago

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:

Question 1

-7x - y = -1
y = 8x + 16

⇒ -7x - (8x + 16) = -1

⇒ -7x - 8x - 16 = -1

⇒ -15x = 15

⇒ x = -1

⇒ y = 8(-1) + 16 = 8

⇒ Solution = (-1, 8)

Question 2

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 = (-8, 6)

Question 3 (not clear)

Question 4

-8x - 7y = 0
y = 6x

⇒ -8x - 7(6x) = 0

⇒ -8x - 42x = 0

⇒ -50x = 0

⇒ x = 0

⇒ y = 6(0) = 0

⇒ Solution = (0, 0)

Question 8

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 = (-4, 1)

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 -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