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polet [3.4K]
2 years ago
6

Sofia ran 660 yards in 3min,at this rate how many yards would she run in 6min ​

Mathematics
1 answer:
Ipatiy [6.2K]2 years ago
7 0

Answer:

She would run 1320 yards in 6 minutes!

Step-by-step explanation:

As 6 minutes is times 2, 3 minutes, then all you would have to do is also multiply the yards run by 2.

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Determine the slope and y-intercept of each graph. Then, write the equation of the graph in slope-intercept form. please help ​
olchik [2.2K]

Answer:

slope = 2

y intercept = ( 0 , -1 )

equation:

y = 2x - 1

Step-by-step explanation:

7 0
2 years ago
Question 3 of 10 * - 3 is a factor of P(x) =*? – 73? + 158-9 O A. True O B. False
Elina [12.6K]

Given,

The expression is,

P(x)=x^3-7x^2+15x-9

If x- 3 is the factor of the given polynomial function, then on substituting the value of x = 3 in the polynomial function, it become zero.

Thus subsituting the value of x in the polynomial,

\begin{gathered} P(3)=3^3-7\times3^2+15\times3-9 \\ =27-7\times9+45-9 \\ =27+45-63-9 \\ =72-72 \\ =0 \end{gathered}

Here, the obtained value of polynomial is 0.

Hence, x-3 is a factor of the given polynomial.

Thus, option A(true) is correct.

6 0
11 months ago
Determine by inspection whether the vectors are linearly independent. Justify your answer.
jekas [21]

Answer:

B. The set is linearly independent because at least one of the vectors is a multiple of another vector.

Step-by-step explanation:

A set of n vector of length n is linearly independent if the matrix with these vectors as column has none of zero determinant. The set of vectors is dependent if the determinant is zero. In the given question the vectors have no zero determinants therefore it is linearly independent.

7 0
3 years ago
Help would be greatly appreciated!
eimsori [14]

b

Take a look at everything inside the brackets sqrt(50x^2) = sqrt(5*5*x*x * 2) For ever 2 factors you can bring one out and drop the other one. That means take out 5 * x * sqrt(2). Two is what is left inside the brackets. B must = 2.

c

Do the same thing here. Write all the primes under the square root. Take out 1 for every two under the root sign. sqrt(32x) = sqrt(2*2*2*2*2*x) You can bring out two 2s. There is one left over. Leave it under the root sign. The x is a loner. It stays under the root sign. c = 2 * 2 = 4.

e

Again do the prime factor thing. sqrt(18n) = sqrt(3*3*2*n) = 3*sqrt(2*n)

e = 3

g

sqrt(72*x*x) = sqrt(3 * 3* 2 * 2 * 2 * x * x) = 3 *2 * x* sqrt(2) For every 2 prime factors you can pull out 1 of them outside the square root sign. g = 6

Comment

There are many people on the net and on Brainly that will say that you should know the perfect squares from 1 to 100 (say) so 4 9 16 25 36 49 64 81 100 are the numbers that you should memorize. When they are under the root sign, their roots can be taken out as 2 3 4 5 6 7 8 9 10. For this question I think it is better to use the pairs rule I've given you above. If someone else answers they are likely to do it the way it is written up in this paragraph. It's a free country. You are free to take the answer you like best.

7 0
3 years ago
David drove 70 miles in 1.75 hours how long would it take to reach 120 miles if he maitains his average speed
vovikov84 [41]
3 hours would be the answer I think.
6 0
2 years ago
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