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4 years ago

The graph of y = ax 2 + bx + c is a parabola that opens up and has a vertex at

Mathematics

1 answer:

Talja [164]4 years ago

8 0

I think that the answer is A

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Is 7x + 1 equivalent to 1 + 7x

mr_godi [17]

Answer:

Yes

Step-by-step explanation:

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3 years ago

Please help logarithms!

nlexa [21]

Given:

$\log_34\approx 1.262$

$\log_37\approx 1.771$

To find:

The value of $\log_3\left(\dfrac{4}{49}\right)$ .

Solution:

We have,

$\log_34\approx 1.262$

$\log_37\approx 1.771$

Using properties of log, we get

$\log_3\left(\dfrac{4}{49}\right)=\log_34-\log_349$ $\left[\because \log_a\dfrac{m}{n}=\log_am-\log_an\right]$

$\log_3\left(\dfrac{4}{49}\right)=\log_34-\log_37^2$

$\log_3\left(\dfrac{4}{49}\right)=\log_34-2\log_37$ $[\log x^n=n\log x]$

Substitute $\log_34\approx 1.262$ and $\log_37\approx 1.771$ .

$\log_3\left(\dfrac{4}{49}\right)=1.262-2(1.771)$

$\log_3\left(\dfrac{4}{49}\right)=1.262-3.542$

$\log_3\left(\dfrac{4}{49}\right)=-2.28$

Therefore, the value of $\log_3\left(\dfrac{4}{49}\right)$ is $-2.28$ .

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3 years ago

Write the augmented matrix for the system of linear equations. (Do not perform any row operations.)

kvv77 [185]

Answer:

Step-by-step explanation:

To create an augmented matrix, we need to transfer the coefficients of each system of equations into its respective place in the matrix. The first row will be the coefficients of the first equation and so on. The number to the right of the equals sign is the last column of the augmented matrix.

$\left[\begin{array}{ccc|c}1&-1&8&8\\3&-9&1&-1\\8&1&0&0\end{array}\right]$

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3 years ago

What is 3 1/3 - 8/3?

Serggg [28]

Here is the answer. The answer is 2/3.

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3 years ago

I need help with #17 helpppppp

igor_vitrenko [27]

Answer:

Step-by-step explanation:

17. sqrt(4) to sqrt(9) = 2 to 3

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3 years ago