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3 years ago

10

Please help me out!!!!!

1 answer:

Troyanec [42]3 years ago

6 0

Answer:

Option C is your answer with the y intercept of -4 and x as 4
Please slow down on posting questions. This seems like your posting an exam.

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A password is 4 characters long and must consist of 3 letters and one number. If letters cannot be repeated and the password mus

Veseljchak [2.6K]

<span>26 x 25 x 24 x 10 = 156,000 possibilities</span>

8 0

3 years ago

Read 2 more answers

PLEASE HELP ME I WILL MARK BRAINLYEST

Korvikt [17]

Question 9:

Given the equations

$5x+2y=6;$

$4x-8y=0$

solving the system of the equations

$\begin{bmatrix}5x+2y=6\\ 4x-8y=0\end{bmatrix}$

$\mathrm{Multiply\:}5x+2y=6\mathrm{\:by\:}4\:\mathrm{:}\:\quad \:20x+8y=24$

$\mathrm{Multiply\:}4x-8y=0\mathrm{\:by\:}5\:\mathrm{:}\:\quad \:20x-40y=0$

$\begin{bmatrix}20x+8y=24\\ 20x-40y=0\end{bmatrix}$

$20x-40y=0$

$-$

$\underline{20x+8y=24}$

$-48y=-24$

$\begin{bmatrix}20x+8y=24\\ -48y=-24\end{bmatrix}$

$-48y=-24$

$\frac{-48y}{-48}=\frac{-24}{-48}$

$y=\frac{1}{2}$

$y = 0.5$ ( 0.5 is the result of rounding 0.5 to the nearest 0.01)

$\mathrm{For\:}20x+8y=24\mathrm{\:plug\:in\:}y=\frac{1}{2}$

$20x+8\cdot \frac{1}{2}=24$

$20x+4=24$

$\frac{20x}{20}=\frac{20}{20}$

$x=1.00$ ( 1.00 is the result of rounding 1 to the nearest 0.01 )

So, the solution is:

(x, y) → (1.00, 0.5)

Question 10)

Similarly the question 10 can be solved.

Given the equations

$5x+2y=9;\:4x-3y=44$

solving

$\begin{bmatrix}5x+2y=9\\ 4x-3y=44\end{bmatrix}$

$\mathrm{Multiply\:}5x+2y=9\mathrm{\:by\:}4\:\mathrm{:}\:\quad \:20x+8y=36$

$\mathrm{Multiply\:}4x-3y=44\mathrm{\:by\:}5\:\mathrm{:}\:\quad \:20x-15y=220$

$\begin{bmatrix}20x+8y=36\\ 20x-15y=220\end{bmatrix}$

$20x-15y=220$

$-$

$\underline{20x+8y=36}$

$-23y=184$

$\begin{bmatrix}20x+8y=36\\ -23y=184\end{bmatrix}$

$-23y=184$

$y=-8.00$ ( -8.00 Rounded to the nearest 0.01 or the Hundredths Place )

$\mathrm{For\:}20x+8y=36\mathrm{\:plug\:in\:}y=-8$

$20x+8\left(-8\right)=36$

$20x=100$

$x=5.00$ ( 5.00 Rounded to the nearest 0.01 or the Hundredths Place )

So, the solution is:

(x, y) → (5.00, -8.00)

8 0

3 years ago

SOS!!! I NEED HELP ASAP!!! PLS PLS PLS PLS PLSSSSSS TYSM TO THOSE WHO HELP ME (I will crown you.) Luv yall

andrew11 [14]

Answer:

i think its d

Step-by-step explanation:

i might be wrong tho

7 0

3 years ago

Use the figure to complete the sentence.

Andrew [12]

I think 2 is the answer i might be wrong

4 0

3 years ago

The equation of a hyperbola is x^2-4y^2-2x-15=0. What is the width of the asymptote rectangle?

zhenek [66]

Answer: 8

<u>Step-by-step explanation:</u>

x² - 2x + ___ - 4y² = 15 + ___

x² - 2x + <u> 1 </u> - 4y² = 15 + <u> 1 </u>

(x - 1)² - 4(y)² = 16

$\frac{(x-1)^{2}} {16} - \frac{4(y - 0)^{2}}{16} = \frac{16}{16}$

$\frac{(x-1)^{2}} {16} - \frac{(y - 0)^{2}}{4} = 1$

$r_{x} = 4$ $r_{y} = 2$

width of rectangle is 2 $(r_{x})$ = 2(4) = 8

3 0

3 years ago