3 years ago

I need the answer to this algebra question

Mathematics

1 answer:

Bond [772]3 years ago

4 0

The answer is letter A

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I need helllpppp ppllsssss

Alina [70]

Answer:

Step-by-step explanation:

Tip a positive number multiplied to a negative number is negative

8 0

3 years ago

Find the vertex of f(x) = 3(x-7)(x+5)

Inessa05 [86]

Answer:

The vertex is at (1, -108).

Step-by-step explanation:

We have the function:

$f(x)=3(x-7)(x+5)$

And we want to find its vertex point.

Note that this is in factored form. Hence, our roots/zeros are x = 7 and x = -5.

Since a parabola is symmetric along its vertex, the x-coordinate of the vertex is halfway between the two zeros. Hence:

$\displaystyle x=\frac{7+(-5)}{2}=\frac{2}{2}=1$

To find the y-coordinate, substitute this back into the function. Hence:

$f(1)=3((1)-7)((1)+5)=3(-6)(6)=-108$

Therefore, our vertex is at (1, -108).

4 0

3 years ago

Read 2 more answers

If the probability of rain is 0.03 what is the probability of not rain

serious [3.7K]

0.97 because 1.00-.03=0.97

7 0

4 years ago

Read 2 more answers

Given the following information, find the length of the missing side. Leave your answer as a simplified radical.

alexdok [17]

Answer:

Cd equals the square root of 3

4 0

3 years ago

In the system of equations, r and s are constants. If the system has infinitely many solutions, what is the value of rs?

exis [7]

Answer: B) -48

Step-by-step explanation:

If the system of two linear equations $a_1x+b_1y=c_1\ \&\ a_2+b_2y=c_2$ has infinitely many solutions , then

$\dfrac{a_1}{a_2}=\dfrac{b_1}{b_2}=\dfrac{c_1}{c_2}=k$

For the given system of linear equations : $rx-sy=26\\4x+3y=13$

We , will have

$\dfrac{r}{4}=\dfrac{-s}{3}=\dfrac{26}{13}=2\\\\\Rightarrow\ r= 4\times2=8\ \ \&\ \ s=2\times-3=-6$

The value of $rs=(8)\times-6=-48$

Hence, the value of rs is -48.

Thus , the correct option is B) -48.

6 0

3 years ago