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Naddika [18.5K]

3 years ago

7

Write an equation is slope-intercept form for the line that passes through the given point and is perpendicular to the graph of

the given equation (0,0),y=1/2x-1

1 answer:

zheka24 [161]3 years ago

8 0

Answer:

2.45

Step-by-step explanation:

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Use the method of ELIMINATION to solve the system. You must SHOW ALL WORK. Make sure you have an answer for both x and y.

jekas [21]

Answer:

<h3>Required <u>Answer</u><u>:</u><u>-</u></h3>

$\sf 4x+8y=10\dots\dots (1)$

$\sf -4x+2y=-30\dots\dots (2)$

by adding eq (1) and eq (2) we get

${:}\longrightarrow$ $\sf 4x+8y=20$

${:}\longrightarrow$ $\sf -4x+2y=-30$

<h2>__________________________</h2>

${:}\longrightarrow$ $\sf 10y=-10$

${:}\longrightarrow$ $\sf y={\dfrac {-10}{10}}$

${:}\longrightarrow$ ${\underline{\boxed{\bf y=-1}}}$

Substitute the value in eq (2)

${:}\longrightarrow$ $\sf -4x+2 (-1)=-30$

${:}\longrightarrow$ $\sf -4x-2=-30$

${:}\longrightarrow$ $\sf -4x=-30+2$

${:}\longrightarrow$ $\sf -4x=-28$

${:}\longrightarrow$ $\sf x={\dfrac {-28}{-4}}$

${:}\longrightarrow$ ${\underline{\boxed{\bf x=7}}}$

$\therefore$ ${\underline{\boxed{\bf (x,y)=(7,-1)}}}$

6 0

3 years ago

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Using the relation in Part B, what is the value of x if f(x) = 99?

Sergeu [11.5K]

I hope this answer helps

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2 years ago

Average after 8 test is 91%. if he gets a 78% on his 9th test what will be the new acerage

Vika [28.1K]

All you need to do is add te averages together then divide them by 2. 91%+78%=169% 169%÷2=84.5% So the new test average is 84.5%

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You have to divide 128 by 8 and you will get 16. So the answer is 16

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The theoretical probability of spinning an even number on a spinner is 23. The spinner has 8 even-numbered sections. How many se

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There are 35 different sections on the spinner.

To solve this, we can write a proportion. We put 8 over the number of sections and set it equal to 23 over 100 for 23%.

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Cross multiply and divide and you will get an answer of about 35.

8 0

3 years ago