All categories

2 years ago

PLEASE HELP!!!!!! WILL GIVE BRAINLIEST!!!!!!!!!!

Mathematics

1 answer:

SVEN [57.7K]2 years ago

3 0

Answer:

a) (-9, 4)

b) (0, 0)

c) No

Step-by-step explanation:

You might be interested in

A parabola can be represented by the equation y2 = –x. What are the coordinates of the focus and the equation of the directrix?

shutvik [7]

ANSWER

Focus:

$(- \frac{1}{4} ,0)$

Directrix:

$x=\frac{1}{4}$

EXPLANATION

The given parabola has equation:

${y}^{2} = - x$

We compare this to the general equation,

${y}^{2} = - 4px$

Comparing the coefficient of x, we have:

-4p=-1

$p = \frac{1}{4}$

The focus is (-p,0)

$(- \frac{1}{4} ,0)$

The equation of the directrix is

x=p

$x = \frac{1}{4}$

5 0

3 years ago

Read 2 more answers

Need help ASAP!!!! :)

Vilka [71]

Answer:

B. All real numbers

General Formulas and Concepts:

<u>Algebra I</u>

Domain is the set of x-values that can be inputted into function f(x)

Step-by-step explanation:

According to the graph, we see that the line's x-values span from negative infinity to infinity. Therefore our domain encapsulates all real numbers.

4 0

2 years ago

Please answer this I need it for a test please

salantis [7]

Answer:

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Show that for the same shear angle, there are two rake angles that give the same cutting ratio.

Yuliya22 [10]

The answer to this question is a equilater triangule

5 0

3 years ago

The first sequence rule is add 4 starting from 15. The second sequence rule is add 3 starting from 18. What is the first number

Snezhnost [94]

Answer: 27

Step-by-step explanation:

Given

In the first sequence, the first term is $a_1=15$

Common difference is $d_1=4$

In the second sequence, the first term is $b_1=18$

Common difference is $d_2=3$

The nth term of the sequence is $a_n=a+(n-1)d$

for the same number to appear on both sequence, the nth term must be equal

$\Rightarrow 15+(n-1)4=18+(n-1)3\\\Rightarrow 3=(n-1)\\\Rightarrow n=4$

Put n=4

$\Rightarrow 15+(4-1)4\\\Rightarrow 15+12=27$

Therefore, 27 is the first common term in both sequences.

4 0

2 years ago