Ask question

Ask question

All categories

3 years ago

8

2x − 2) + (x + 1) + x + (x + 1) = (2x − 9) + (x + 1) + (x + 8) + x,

2 answers:

Yuri [45]3 years ago

6 0

Answer:5x=5x

Step-by-step explanation:(2x+x+x+x)+(-2+1+1)=(2x+x+x+×)+(-9+1+8) 5x+0=5x+0. 5x=5x

KengaRu [80]3 years ago

4 0

Answer:

x=1

Step-by-step explanation:

5x=5x x=1

You might be interested in

The original price of a pair of shoes is $36.00. Edward buys the shoes for 13% off its original price. Two weeks later Chad buys

Sloan [31]

Answer:

<em>$6.06</em>

Step-by-step explanation:

Edward: 36.00*0.87=31.32

Chad 36.00*0.71=25.25

31.32-25.25=6.06

<em>$6.06</em>

<u>Hope this helps :-)</u>

3 0

2 years ago

Read 2 more answers

7) f = c +32 (solve for c)<br> i need help it’s due tomorrow please

kvv77 [185]

F=c+32
this is a plug in formula, therefore to find fahrenheit you take the celsius and add 32 to get your fahrenheit answer.

8 0

3 years ago

Read 2 more answers

HELP PLEASE THIS IS DUE IN 30 MIN PLEASE HELP URGENT

Oxana [17]

Answer:

12.5

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Help me asap you guys i need help

Thepotemich [5.8K]

Hi there! :)

Answer:

$\huge\boxed{C}$

To simplify the process, convert each given weight into standard notation:

Lion:

$1 * 10^{5} = 1 * 100000 = 100,000 g$

Ant:

$2 * 10^{-3} = 2* 0.001 = 0.002$

Divide the ant's weight from the lion's weight:

$100000 / 0.002 = 50,000,000$

Convert to scientific notation: (use # of zeros to determine exponent)

$50,000,000 = 5 * 10^{7}$

Therefore, the correct answer is C.

5 0

3 years ago

Write a quadratic function, in standard form, that fits the set of points. Solve it as a system of three equations. (-4, 9), (0,

Tresset [83]

Answer:

$\boxed{y=2x^2+4x-7}$

Step-by-step explanation:

Let the quadratic function be

$y=ax^2+bx+c$

We substitute $(-4,9)$ into the equation to obtain;

$9=a(-4)^2+b(-4)+c$

$\Rightarrow 9=16a-4b+c---(1)$

We substitute $(0,-7)$ to obtain;

$-7=a(0)^2+b(0)^2+c$

$\Rightarrow c=-7---(2)$

We finally substitute $(1,-1)$ to obtain;

$-1=a(1)^2+b(1)^2+c$

$\Rightarrow -1=a+b+c---(3)$

We put equation (2) into equation (1) to get;

$9=16a-4b-7$

$16a-4b=16$

$\Rightarrow 4a-b=4---(4)$

$\Rightarrow -1=a+b-7$

$\Rightarrow a+b=6---(5)$

We add equation (4) and (5) to get;

$4a+a=6+4$

$\Rightarrow 5a=10$

$\Rightarrow a=2$

We put $a=2$ into equation (5) to get;

$2+b=6$

$\Rightarrow b=6-2$

$\Rightarrow b=4$

The reqiured quadratic function is

$y=2x^2+4x-7$

7 0

2 years ago