Find the value of x please help.

Answer:

Move all the expressions to the left side of the equation.

y−2x²+2x+1=0

Move all terms not containing y to the right side of the equation.

y=2x²−2x−1

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Because two sides of the triangle are the same length

Answer:

No

Step-by-step explanation:

Again, I don’t really want to help you :)

We can use the Pythagorean Theorem to solve the triangle to find x.

[tex]x^2=12^2+8^2[/tex]

[tex]x^2=144+64[/tex]

[tex]x^2=208[/tex]

[tex]x=\sqrt{208}[/tex]

x≈14.4

Answer:

$28.80

Step-by-step explanation:

36 * 80%

Answer:

a

Step-by-step explanation:

Answer:

Option A

Step-by-step explanation:

I just got done with this same quiz and i got a 100 .

Answer: 31 cups of sugar

Step-by-step explanation:

1 cup x 31 = 31 cups

Answer:

31

Step-by-step explanation:

1 x 31 = 31

Answer:

0.04 mol/ Liter

Step-by-step explanation:

If you have 8.1 grams of NaOH in 5 L of solution, what is the molarity? (Round answers to the nearest hundredth)

The formula for molarity = Number of moles/ Volume in Liters

Step 1

Find the Number of moles of NaOH

We find the Molar mass of NaOH

Na = 23, O = 16, H = 1

Molar mass = 23 + 16 + 1 = 40 g/mol

Grams of NaOH in the solution = 8.1 grams

Number of moles = Mass/Molar mass

= 8.1 g/40 g/mol

= 0.2025 moles

Step 2

Molarity = 0.2025moles/ 5 L

= 0.0405 mol/ Liter

Approximately = 0.04 mol/L

Answer:

f(-2) = 90

Step-by-step explanation:

Plugging in the value of f(x) into the equation:

f(-2) = 5(-2)3^(-2)

f(-2) = 5(-2)(-9)  - evaluate the power first

f(-2) = 90          - multiply from left to right to obtain answer

Answer:

Step-by-step explanation:

5764.36 I think

Answer:

yes...

Step-by-step explanation:

Answer:

13

Step-by-step explanation:

4 is 1.5 of 6. The 6 and 4 are the same side for JMK and KML. When you find that difference, you can multiply it by 6, because 6 is also KM for KML, Witch is 9. then 9 +4 is 13.

Answer:

(0, 8 )

Step-by-step explanation:

The y- intercept is where the graph crosses the y- axis

The graph crosses the y- axis at 8 with coordinates (0, 8 )

Answer:

First Question - c. 320

Second Question - b. 5

Third Question - a. 8

Answer:

7 yd^3

hope this helps

have a good day :)

Step-by-step explanation:

Answer:

The interquartile range or IQR is equal to three minus one. We subtract the lower quartile value from the upper quartile value. ... As there are also seven values in data set two, the position of the quartiles and median will remain the same. The lowest value of data set two is 19, and the highest value is 28

Step-by-step explanation:

hope i helped and have a wonderful day

Answer:

The answer to this question is within 2 stabdard deviations

Step-by-step explanation:

to get the score of 85 you got to add the deviation value to the mean whuch creates the deviation. do that multiple times and you get a multiple deviation

72+8=80+8 is 88

88 is greater than 85 so a test score of 85 is within 2 standard deviations of the mean

Answer: y = (x+2)^2

Aka: B

Step-by-step explanation:

Did it on edge just now !

The equation y = (x + 2)² has a graph that is a parabola with a vertex at

(-2, 0).

Option B is the correct answer.

A parabola is an equation of a curve, such that any point on the curve is equidistant from a fixed point called the focus and a fixed line called the directrix of the parabola.

The equation of a parabola:

y = a(x-h)^2 + k

We have,

The equation that has a graph that is a parabola with a vertex at (-2, 0) is

y = (x + 2)².

The general equation for a parabola is y = a(x - h)² + k, where (h, k) is the vertex of the parabola.

Comparing this general equation to y = (x + 2)²,

We can see that h = -2 and k = 0, which means that the vertex of the parabola is (-2, 0).

Therefore,

The equation y = (x + 2)² has a graph that is a parabola with a vertex at

(-2, 0).

Learn more about parabola here:

https://brainly.com/question/21685473

#SPJ7

Answer:

12

Step-by-step explanation:

Answer:

3/4, 4/5, 2/3. 3/5, 2/3

Step-by-step explanation:

What is 4/8 + 1/4 simplified

4/8 + 1/4

4/8 + (1/4)*2/2 (find the common denominator in our case it is 8)

4/8 + 2/8

6/8

or, 3/4 (I simplified the fraction to lowest term)

what is 3/5 + 2/10 simplified  

3/5 + 2/10

3/5 + 1/5

4/5

what is 1/3 + 3/9 simplified

1/3 + 3/9

1/3 + 1/3

2/3

what is 2/10 +2/5 simplified

2/10 + 2/5

1/5 + 2/5

3/5

what is 3/6 + 2/12 simplified

3/6 + 2/12

3/6 + 1/6

4/6

2/3

A.

Step-by-step explanation:

It's exactly what's asked for.

Answer:

20 units

Step-by-step explanation:

Hope this helps u :D

Answer:

24 units

Step-by-step explanation:

The distance between 2 and 4 is 2.

2 + 2 = 4

The width is 2 units.

The distance between - 3 and 5 is 8.

- 3 + 8 = 5 or 8 - 3 = 5

4 + 8 + 4 + 8 = 24

Answer:

∠ABC= 82°

∠ACB= 82°

∠BAC= 16°

Step-by-step explanation:

∠ABC +∠ACB +∠BAC = 180° (∠ sum of △ABC)

(5x -3)° +(5x -3)° +(x -1)°= 180°

5x -3 +5x -3 +x -1= 180

11x -7= 180 (simplify)

11x= 180 +7 (+7 on both sides)

11x= 187

x= 187 ÷11

x= 17

∠ABC

= (5x -3)°

= [5(17) -3]°

= 82°

∠ACB

= ∠ABC

= 82°

∠BAC

= (17 -1)°

= 16°

Alternatively,

∠BAC

= 180° -82° -82°

= 16°

Answer:

biosphere

Step-by-step explanation:

[tex]\huge{\textbf{\textsf{{\color{navy}{An}}{\purple{sw}}{\pink{er}} {\color{pink}{:}}}}}[/tex]

Biosphere.

Answer:

[tex] \displaystyle \begin{cases} \displaystyle {x} _{1} = - p \\ \displaystyle x _{2} = - q \end{cases}[/tex]

Step-by-step explanation:

we would like to solve the following equation for x:

[tex] \displaystyle \frac{1}{p} + \frac{1}{q} + \frac{1}{x} = \frac{1}{p + q + x} [/tex]

to do so isolate [tex]\frac{1}{x}[/tex] to right hand side and change its sign which yields:

[tex] \displaystyle \frac{1}{p} + \frac{1}{q} = \frac{1}{p + q + x} - \frac{1}{x} [/tex]

simplify Substraction:

[tex] \displaystyle \frac{1}{p} + \frac{1}{q} = \frac{x - (q + p + x)}{x(p + q + x)} [/tex]

get rid of only x:

[tex] \displaystyle \frac{1}{p} + \frac{1}{q} = \frac{ - (q + p )}{x(p + q + x)} [/tex]

simplify addition of the left hand side:

[tex] \displaystyle \frac{q + p}{pq} = \frac{ - (q + p )}{x(p + q + x)} [/tex]

divide both sides by q+p Which yields:

[tex] \displaystyle \frac{1}{pq} = \frac{ -1}{x(p + q + x)} [/tex]

cross multiplication:

[tex] \displaystyle x(p + q + x) = - pq[/tex]

distribute:

[tex] \displaystyle xp + xq + {x}^{2} = - pq[/tex]

isolate -pq to the left hand side and change its sign:

[tex] \displaystyle xp + xq + {x}^{2} + pq = 0[/tex]

rearrange it to standard form:

[tex] \displaystyle {x}^{2} + xp + xq + pq = 0[/tex]

now notice we end up with a quadratic equation therefore to solve so we can consider factoring method to use so

factor out x:

[tex] \displaystyle x( {x}^{} + p ) + xq + pq = 0[/tex]

factor out q:

[tex] \displaystyle x( {x}^{} + p ) +q (x + p)= 0[/tex]

group:

[tex] \displaystyle ( {x}^{} + p ) (x + q)= 0[/tex]

by Zero product property we obtain:

[tex] \displaystyle \begin{cases} \displaystyle {x}^{} + p = 0 \\ \displaystyle x + q= 0 \end{cases}[/tex]

cancel out p from the first equation and q from the second equation which yields:

[tex] \displaystyle \begin{cases} \displaystyle {x}^{} = - p \\ \displaystyle x = - q \end{cases}[/tex]

and we are done!

Answer:

$50,000

Step-by-step explanation:

We have an average of 10 livestock units per hectare

The number of units in 250 hectares will be;

250 * 10 = 2,500 units

Amount earned per unit is $20 per year

So, for 2,500 units, we have

2500 * $20 = $50,000

Answer:

(b × h) ÷ 2

Step-by-step explanation:

Answer:

answer is A

Step-by-step explanation:

"The data is a random sample from the population of interest.

This condition is met since he took an SRS (simple random sample) from the population of interest."

khan academy (trust me i try to find the answer might as well just give it, it was the only green one)

Answer:

A. The data is a random sample from the population of interest.

Step-by-step explanation:

Answer:

WILL GIVE BRAINLIEST NO LINKS ANSWER ASAP

a taste test asks people from Texas and California which pasta they prefer brand a or brand b this table shows the results a person is randomly selected from those tested what is the probability that the person is from Texas given that the person prefers brand a

0.62

0.47

0.45

0.64

Answer:

the green prisim is 5.59 or 5 times bigger!

Step-by-step explanation:

The surface area of the green prisim is 850 and the surface area of the blue one is 150 and 850 divided by 150 is 5.59!