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2 years ago

If u=(1,3) and v=(2,6), find u+v

Mathematics

2 answers:

Ronch [10]2 years ago

8 0

Answer:

(3,9)

Step-by-step explanation:

u=(1,3) and v=(2,6),

u+v = (1+2, 3+6)

=(3,9)

docker41 [41]2 years ago

8 0

Answer:

(3,9)

u=(1,3) and v=(2,6),

u+v = (1+2, 3+6)

=(3,9)

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Answer:

$\angle 6 = 93$

Step-by-step explanation:

$\angle 5 = 87$ by properties of parallel lines

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2 years ago

Write −12 as a ratio of two integers. <br><br> Enter your answer as a reduced improper fraction.

nikklg [1K]

Answer:

Assuming there are no other parts,

the Whole = A + B is the denominator:

Whole = 3 + 9 = 12

Part A = 3 and Part B = 9 are numerators for each fraction.

The fractions are then:

3/12 and 9/12

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Part A is 3/12 of the whole

Part B is 9/12 of the whole

Reducing the fractions, it is also true that:

Part A = 1/4 of the whole

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2 years ago

HELP ME PLSSSSSsss Solve the following inequality: 5|2x + 4| > -10? Would it be all real numbers....

Viktor [21]

Answer:

all real numbers

Step-by-step explanation:

5|2x + 4| > -10

Divide by 5

5/5|2x + 4| > -10/5

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2 years ago

An alloy is composed of nickel, zinc, and copper in a ration of 7:2:9. How many kilograms of each metal are needed to make 3.6kg

motikmotik

Well, the short answer is, we divide that 3.6 by (7+2+9) and then we give as many pieces at the ratio to each, so let's do so,

$\bf \stackrel{nickel}{7}~~:~~\stackrel{zinc}{2}~~:~~\stackrel{copper}{9}
\\\\\\
\stackrel{nickel}{7\cdot \frac{3.6}{7+2+9}}~~:~~\stackrel{zinc}{2\cdot \frac{3.6}{7+2+9}}~~:~~\stackrel{copper}{9\cdot \frac{3.6}{7+2+9}}
\\\\\\
\stackrel{nickel}{7\cdot 0.2}~~:~~\stackrel{zinc}{2\cdot 0.2}~~:~~\stackrel{copper}{9\cdot 0.2}
\\\\\\
\stackrel{nickel}{1.4}~~:~~\stackrel{zinc}{0.4}~~:~~\stackrel{copper}{1.8}$

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