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2 years ago

Please solve this fast under 20 min

Mathematics

1 answer:

kompoz [17]2 years ago

8 0

Answer: iii - symmetric matrix is correct because A is equaling At therefore making this a symmetric matrix.

Step-by-step explanation:

Please give me brainiest!

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What is the square root of 45600 in fraction

Archy [21]

Answer:

The square root of 45600 is 20 $\sqrt{114}$

Step-by-step explanation:

One fraction that can be form is $\frac{20\sqrt{x}}{1}$

8 0

3 years ago

Would a triangle with these side lengths be a right triangle? 7, 14, 16

S_A_V [24]

Answer: I would say no but I could be wrong but I can say a right triangle =90° tell me if you want a better explanation

Step-by-step explanation:

3 0

2 years ago

60 minutes is 20% of how many minutes show work on a number line

klio [65]

X=60/20% x=60/0.2 x=300

4 0

2 years ago

A b c or d. use pic to solve

Neporo4naja [7]

Answer:

In Heather's solution to the problem, she wrote and solved an equation.

Her work is:

Step 1: 1.08(x +9.01 +0.98 +5.01) = 21.87

Solving like terms

1.08(x+15}=21.87

dividing both side by 1.08

we get

x+15=21.87/1.08

x+15=20.25

subtracting both side by 13.9198

x=20.25-15

x=5.25

According to correction

;

Option 1st

yes,it is correct

5 0

2 years ago

Person A can paint the neighbor's house 6 times as fast as Person B. The year A and B worked together it

uranmaximum [27]

Person A takes 2.3 days to paint the house working alone

Person B takes 13.8 days to paint the house working alone

Solution:

Let "x" be the number of days it takes person A to paint the house

Person A can paint the neighbor's house 6 times as fast as Person B

Therefore.

Number of days it takes person B to paint the house = 6x

Their rates of painting are added to get the rate working together

$\frac{\text{1 house}}{\text{x days}} + \frac{\text{1 house}}{\text{6x days}} = \frac{\text{1 house}}{\text{2 days}}$

$\frac{1}{x} + \frac{1}{6x} = \frac{1}{2}\\\\\frac{1 \times 6}{6x} + \frac{1}{6x} = \frac{1}{2}\\\\\frac{7}{6x} = \frac{1}{2}\\\\\ x = \frac{7}{3}= 2.3$

Thus person A takes 2.3 days to paint the house working alone

Person B = 2x = 6(2.3) = 13.8

Thus person B takes 13.8 days to paint the house working alone

3 0

2 years ago

Please solve this fast under 20 min​

Please solve this fast under 20 min