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3 years ago

Find the area of a room 9/7 m and 2/7 m ;-; help

Mathematics

1 answer:

11111nata11111 [884]3 years ago

4 0

Answer:

I can help you in comments so I can explain this to you

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What is the y-intercept and x-intercept of 5x-y=35

Veronika [31]

First lets put this into a nicer format
y=5x-35
Plug in 0 for X to get the Y intercept
y=-35 (0,-35)
Now plug in 0 for Y to get the X intercept
0=5x-35
35=5x
Divide by 5
X=7 (7,0)

5 0

4 years ago

Javier has been saving for a digital camera. He finds one on sale for $67.50. It usually costs $90.00. What is the percent of th

sergejj [24]

Answer:

B: 25%

Step-by-step explanation:

$90.00 - $67.50 = $22.5

$22.5 / $90 = 0.25 = 25%

Answer:

B: 25%

6 0

3 years ago

Which whole-number values of x make the inequality 3x -2 < 12 true?

Rufina [12.5K]

3x - 2 < 12
3x < 12 + 2
3x < 14
x < 14/3
x < 4 2/3......whole-number value = 4

4 0

4 years ago

Y=-x^2+2x+10<br> y=x+2<br><br> Substitution<br> Need ASAP

aniked [119]

Answer:

$x_1=\frac{1+\sqrt{33} }{2},y_1=\frac{5+\sqrt{33} }{2}\\ \\ x_2=\frac{1-\sqrt{33} }{2},y_2=\frac{5-\sqrt{33} }{2}$

Explanation:

You must find the solution of the system using the substitution method.

System:

$y=-x^2+2x+10\\\\ y=x+2$

Substitute x+2 for y:

$x+2=y=-x^2+2x+10$

Pass all the terms to one side:

$x^2-2x+x+2-10\\ \\ x^2-x-8=0$

Use the quadratic formula to solve:

$x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}\\ \\ x=\frac{-(-1)+/-\sqrt{(-1)^2-4(1)(-8)} }{2(1)}\\ \\ x=\frac{1+/-\sqrt{1+32} }{2}$

$x_1=\frac{1+\sqrt{33} }{2}\\ \\x_2=\frac{1-\sqrt{33} }{2}$

Use y = x + 2 to find the value of y:

$y_1=2+x_1=2+\frac{1+\sqrt{33} }{2}\\ \\y_1=\frac{5+\sqrt{33} }{2} \\\\y_2=2+x_2=2+\frac{1-\sqrt{33} }{2}\\ \\ y_2=\frac{5-\sqrt{33} }{2}$

6 0

3 years ago

What is the value of the expression above when x = 3 and y = 4? You must show all work and calculations to receive full credit.

zmey [24]

What's up?

let's implement these numbers into the problem first.

3•3 + 1/4 4^2

let's solve what we can

9 + 1/4 • 16

9 + 4 = 13

4 0

3 years ago