What is 3n^2 + 12n - 11 = 0

It's a Quadratic that doesn't have any real roots as the parabola doesn't cross the x-axis.

For graphing:

If you're familiar with the parabola of y=x^2, then you could graph that but just translate it upwards by +4 on the y such that f(x)+4 will be equal to it.

If you aren't, then we know the y-intercept is 4, and that's also the point of the minimum point of the curve. If I were you, I'd write a table of some of the integer values:

x y

-2 8

-1 5

0 4

1 5

2 8

The value of y is the same for x and -x as anything squared is positive.This means that there is a line of symmetry in the y-axis.

This then makes it much easier to graph, simply place these points on the graph and make sure the curve is exponential. This means the gradient (steepness) gets greater the bigger the value of x.

Answer: If you plug in 1 as x the answer is 225 years. The rest give different values when plugged in. Ex 225 gives us 55 years and 31.45 gives us 116 years. Hope this is correct and helps.

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Edge 2021

Answer:

x=17

Step-by-step explanation:

Answer:

X = 17

Step-by-step explanation:

Use M A T H W A Y  to solve equations

Answer:

Total volume equals V1 - V2

[tex]v = \pi {r}^{2} h[/tex]

[tex]v = 12\pi {r1}^{2} - 12\pi {r2}^{2} [/tex]

where:

r1 = radius 1

r2 = radius 2

Step-by-step explanation:

[tex]r1 \\ v1 = 12\pi {3.5}^{2} \: is \: approx. \: 461.81 {cm}^{3} [/tex]

[tex]r2 \\ v2 = 12\pi {3.3}^{2} \: is \: approx. \: 410.54 {cm}^{3} [/tex]

Total Volume v is

[tex]461.81 - 410.54 = 51.27 {cm}^{3} [/tex]

Answer:

its 43.6

Step-by-step explanation:

i added my last number by the numerator

The animals in order of least to greatest speed are Brown Elk, Hare, Blue Wildebeest, and Cheetah, with speeds approximately 45, 48, 50, and 70 miles per hour respectively.

Ordering the animals from least to greatest speed based on their provided speeds are :

(1) Brown Hare: 8 miles in 1/6 hours, which is approximately 48 miles per hour.

(2) Cheetah: 7 miles in 1/10 hours, which is 70 miles per hour.

(3) Blue Wildebeest: 100/3 miles in 2/3 hours, which is 50 miles per hour.

(4) Elk: 18 miles in 2/5 hours, which is 45 miles per hour.

Therefore, the animals in order from least to greatest speed are Brown Elk, Hare, Blue Wildebeest, and Cheetah.

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Answer: Choice B)  [tex]36 + x^2 = 64[/tex]

Explanation:

We use the pythagorean theorem with the following values

So,

[tex]a^2 + b^2 = c^2\\\\6^2 + x^2 = 8^2\\\\36 + x^2 = 64\\\\[/tex]

Answer:

the first, the third and the last one are true

Step-by-step explanation:

Answer:

1. -.2x

2. -.2x

3. -27

Step-by-step explanation:

First add -.65x and .45x to get -.2x then divide 5.4 by -.2 to get x alone and you get x=-27

Answer:

Not congruent

Step-by-step explanation:

They are not congruent because in order of congruency will have an angle(the ones marked with red) -

side( the side that the two triangles shares so are congruent by reflexive property ) -

side ( the one marked with the red line)

and this is not a theorem of congruency.

Step-by-step explanation:

the first one ------ A ) -9,-6,-3,7,11

the second one------- C) 8

the third one ------ B) 1.

hope this helps you.

Slope is calculated as the change in y over the change in x so you would need to do 5- (-5) which turns the negative sign to a positive making it 5+5=10 and the same thing with the 2s 2-(-2)=4 so the answer would be 10/4 or 5/2. Billy did the reciprocal.

Answer:

correct answer is 5/2

Step-by-step explanation:

the mistake was the student took the difference of the x-values and it in the numerator and the difference of the y-values should be the denominator

5-(-5) / 2-(-2) = 10/4 or 5/2

Answer:

x =  1.56  and x = − 0.56

Step-by-step explanation:

2/3x  - 1/5x  

(2/3 x  5)  -  (1/5 x 3 )

10/15 - 3/ 15

13 / 15x  

show x-1

13 / 15x   =   x - 1     here we cannot set to 0 so multiply the variable by 15x

15x^2

−15x−13 = 0

quad formula   - b+/-   sqrt (b^2 - 4 x a x c )  /2

x =1.556724499   and x =−0.556724499

Answer:

The square root of 196 is 14

Step-by-step explanation:

Prime factorization of 196:

Prime factors of 196 in pairs:

Now square root of 196:

Thus, The square root of 196 is 14

-TheUnknownScientist 72

Answer: [tex]\sqrt{196} =14[/tex]

Step-by-step explanation:

[tex]{\begin{array}{c|c}196 & 2 \\ 98&2 \\49 &7 \\7&7 \end {array }[/tex]         [tex]196=2\cdot 2\cdot 7\cdot 7=2^4\cdot 7^2 \\\\\sqrt{196} =\sqrt{2^2\cdot 7^2} =2\cdot 7=14[/tex]

Answer:

between 180 and 365 cuz it's a reflex angle

Answer:

Table:

x   |   y

-2 |  -16/3

-1  |  -14/3

0  |  -4

1   |  -10/3

2  |  -8/3

Answer:

a) $160

b) $116.50

Step-by-step explanation:

a) Let the original price of the yellow bicycle be $x.

Since both has the same original price,

original price of yellow bicycle= 100% x

original price of green bicycle= 100% x

Discounted price of yellow bicycle

= (100% -25%) x

= 75% x

Discounted price of green bicycle

= (100% -30%) x

= 70% x

Difference in cost

= 75%x -70%x

= 5% x -----(1)

From 2nd paragraph:

Discounted price of yellow bicycle

= Kyreen's money +3.50

Discounted price of green bicycle

= Kyreen's money -4.50

Difference in cost

= (Kyreen's money +3.50) -(Kyreen's money -4.50)

= Kyreen's money +3.50 -Kyreen's money +4.50

= 3.50 +4.50

= 8.00 -----(2)

Equating (1) and (2) together:

5% x= 8.00

[tex] \frac{5}{100} x = 8[/tex]

[tex]x = 8 \div \frac{5}{100} [/tex]

[tex]x = 8 \times \frac{100}{5} [/tex]

x= 8 ×20

x= 160

Thus, the original price of the yellow bicycle is $160.

_______

b) Amount Kyreen has at first

= discounted price of yellow bicycle -$3.50

= 75%($160) -$3.50

= $120 -$3.50

= $116.50

Answer:

$1.75

Step-by-step explanation:

We are asked to find the distance Louise cycled.

Speed Louise cycled = 12 mph

Time = 11: 30 am to 12 : 15 pm

= 45 minutes

Convert 45 minutes to hour

60 minutes = 1 hour

45 minutes = 3/4 hour

Speed = Total distance ÷ Total time taken

Distance = Speed × Time

= 12 mph × 3/4 hour

= 36 / 4

= 9 miles

Therefore, the total distance Louise cycled is 9 miles

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Answer:

thank You for your points this is the answer

Answer:

3rd option

Step-by-step explanation:

The equation of a line in standard form is

Ax + By = C ( A is a positive integer and B, C are integers )

Given

y = [tex]\frac{2}{5}[/tex] x - 6 ( multiply through by 5 to clear the fraction )

5y = 2x - 30 ( subtract 5y from both sides )

0 = 2x - 5y - 30 ( add 30 to both sides )

30 = 2x - 5y , or

2x - 5y = 30 ← in standard form

Answer:

I hope this helps.

Step-by-step explanation:

Answer:

Step-by-step explanation:

the answer is 189

Answer:

letter d.po sagot diyan

Answer:

cannot see the plotted points on the number line

Step-by-step explanation:

Answer:

A. -3a³-6a²+7a-13 Hope this helps :)

Step-by-step explanation:

Answer:

Step-by-step explanation:

A. -3a³-6a²+7a-13

This is a basic algebraic fraction question

Step 1: Factor n2-9

Step 2: Rewrite the second fraction

Step 3: Write all the numerators under the least common denominator

Step 4: Expand bracket

Step 5: Collect like terms