20+20+20+20+20+20+20+9893-2839283+93749-93+8366754439=???

Answer:

x1 = -4, x2 = -16

Step-by-step explanation:

1.- equal the equation to 0

x^2 + 20x + 100 - 36 = 0

x^2 + 20x + 64

2.- factor to simplify.

(x + 4)(x + 16) = 0

3.- equal each factor to 0 and solve for x.

x + 4 = 0,   x = -4

x + 16 = 0,   x = -16

Answer: A.) x = -16 or x = -4

Step-by-step explanation:

correct on Edge 2021 ✅

10x²-6x-6 is the answer

Answer:

It's 211

Step-by-step explanation:

Just did it on edge

Answer:

211

Step-by-step explanation:

Answer:

Probability of picking an even and then even number = [tex]\frac{1}{6}[/tex]

Step-by-step explanation:

Probability of picking a card with even number,

P(even 1) = [tex]\frac{\text{favorable outcomes}}{\text{Total outcomes}}[/tex] = [tex]\frac{\text{even cards}}{\text{Total number of cards}}[/tex]

               = [tex]\frac{2}{4}[/tex]

               = [tex]\frac{1}{2}[/tex]

Followed by picking a card which is even without putting the first card back.

So an even card is to be picked out of remaining 3 cards.

P(even 2) = [tex]\frac{\text{favorable outcomes}}{\text{Total outcomes}}[/tex]

                = [tex]\frac{1}{3}[/tex]

Now probability of both events = P(even 1) × P(even 2)

= [tex]\frac{1}{2}\times \frac{1}{3}[/tex]

= [tex]\frac{1}{6}[/tex]

Therefore, probability of both the events will be [tex]\frac{1}{6}[/tex].

Step-by-step explanation:

[tex]A = \frac{1}{2}(b*h)[/tex]

[tex]A=\frac{1}{2} (14*5)[/tex]

[tex]A=\frac{1}{2} (70)[/tex]

A = 35

[tex]P = s+s+s[/tex]

[tex]P=12+14+6[/tex]

P = 32

Answer:

n = 144

Step-by-step explanation:

          6 / n = 5/120

         6 * 120 = 5*n

               5n = 6*120

               5n = 720

                 n = 720/5

                 n = 144

Answer:

144

Step-by-step explanation:

you should use a proportion to do this to make it easier to solve.

[tex]\frac{6}{n} = \frac{5}{120}[/tex]

cross multiply the numbers

[tex]5n = 6*120[/tex]

[tex]5n = 720[/tex]

then divide  720 by 5

[tex]n = 144[/tex]

Answer:

The y intercept is (0,-3)

Step-by-step explanation:

The y intercept is when x =0

f(x) = - x^2 + 4x - 3

f(0) = 0 +0 -3

f(0) =-3

The y intercept is (0,-3)

Answer:

A "fair" coin lands heads-up half of the time and "tails-up" half of the time.

For one flip, the probability of landing heads-up is 1/2.

Of those successes, we now consider the probability of the "fair" die landing with an even number on top. This probability is (number of successes) / (total number of possibilities) = 3/6, or 1/2.

So, the probability of both events happening ("and") is 1/2 of 1/2, or (1/2)*(1/2) = 1/4.

Step-by-step explanation:

The probability that coin lands heads-up and the die shows a five is 0.083.

Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.

We know that, probability of an event = Number of favorable outcomes/Total number of outcomes.

Given that, a person flip a coin and then roll a fair six-sided die.

The probability the coin lands heads-up is 1/2

The probability that die shows a five = 1/6

Now, the probability of an event = 1/2 × 1/6

= 1/12

= 0.083

Therefore, the probability that coin lands heads-up and the die shows a five is 0.083.

To learn more about the probability visit:

https://brainly.com/question/11234923.

#SPJ3

Answer:

The mean length is 3 ft

while the median length is 2.5 ft

Step-by-step explanation:

The mean length is the sum of the lengths divided by the count of the lengths.

Mathematically, that is;

(2 + 3 + 6 + 1.5 + 4.5 + 1)/6 = 18/6 = 3 ft

To calculate the median length, we first need to rearrange the lengths in increasing order

1, 1.5, 2, 3, 4.5, 6

Now, looking at these lengths, the middle lengths are 2ft and 3ft

we can add both together and divide by 2

That would be (2+3)/2 = 5/2 = 2.5 ft

Answer:

Step-by-step explanation:

Given the lengths of the pieces of lumber that a carpenter has as shown;

2 ft, 3 ft, 6 ft, 1.5 ft, 4.5 ft, 1 ft

3) The mean length is expressed as the ratio of the sum total of the lengths to the total amount of pieces of lumber given.

Mathematically; Mean ([tex]\overline x[/tex]) = [tex]\frac{\sum Xi}{N}[/tex]

Xi is the individual length

N is the total amount of pieces of lumber = 6pieces

[tex]\overline x = \frac{2+3+6+1.5+4.5+1}{6} \\\overline x = \frac{18}{6} \\\overline x = 3ft[/tex]

4) Median is the value at the middle of the given lengths after rearrangement. Rearrangement can either be ascending or descending.

Rearranging the data in ascending order we have;

1ft, 1.5ft, 2ft, 3ft, 4.5ft, 6ft

The two lengths at the middle are 2ft and 3ft. Taking the average of the two values since we cannot have 2 median values.

Median = 2+3/2

median = 2.5ft

Answer:

40%

Step-by-step explanation:

Convert fraction (ratio) 40 / 100 Answer: 40%

Step-by-step explanation:

Stem and leaf plots are best suited for data with a small number of place values such as 7, 30, or maybe even 340. The numbers in the data set are rather large and hard to demonstrate with a stem and leaf plot. Therefore, it probably isn't your best option. Hope this helps!

Answer:

A stem and leaf plot shouldn't be used because the numbers are more than two digits long. These numbers are more varied, so it isn't correct for a stem and leaf plot. The stem is usually the tens digit, and the leaf is the ones digit. When you have four digits, it would get infinite times more hard and complicated. Hope that helped!

Answer:

The answer is 125m^6

Step-by-step explanation:

Step 1: 5^3 (m^2)^3

Step 2: 125(m^2)^3

Step 3: Finally you get 125m^6

Please mark me as brainliest!

​​  I also took this and got it right!!

Answer:

Step-by-step explanation:

25%

Answer:

Width = 4.5

Length = 7.5

Step-by-step explanation:

The perimeter is two times the length plus two times the width.

So 2(x+3) + 2x = 24 is the equation to solve.

2x+6+2x = 24

4x = 24-6

4x = 18

x = 9/2= 4.5

So the width = 4.5

Length = 4.5+3 = 7.5

Answer:

Length = 7.5 and width =- 4.5.

Step-by-step explanation:

We have the equation:

P = 2L  + 2W   where P = perimeter, L = length and W = width.

Here P = 24, L = x + 3 and W = x

So plugging in the given values:

24 = 2(x + 3) + 2x

4x + 6 = 24

4x = 24 - 6 = 18

x = 4.5.

So  the dimension ar length = x + 3 = 7.5 and width = 4.5.

Answer:

1,590.7 cm^3

Step-by-step explanation:

First, separate this shape into two smaller shapes you can easily find the volume of. In this example, you can separate this figure into a cone and a half-sphere.

Find the volume of the cone using the formula: V=πr^2(h/3). The radius is 7 because 14cm is the diameter, and 17cm is the height. When you solve, you get 872.32 for the volume of this cone.

Then, find the volume of the half-sphere. The volume of a sphere can be found with the formula: V=4/3πr^3. The radius is, again, 7. Now divide this value in half because you only want to find the volume of a half-sphere. You should get 718.38 cm.

Now add the two volumes together to get 1,590.7 cubed centimeters.

Step-by-step explanation:

volume of hemisphere

given

r=d/2=14/2=7cm

V=2/3πr^3

V=2/3×π×7^3

V=2/3×π×343cm^3

V=2/3×1077.56

V=718.37cm^3

volume of cone

given

r=7cm

h=17cm

V=πr^2×h/3

V=π×7^2×17cm/3

V=π×49cm^2×17cm/3

V=π×833cm^3/3

V=2616.94/3

V=872.31cm^3

Total volume=718.37cm^3+872.31cm^3

=1590.68cm^3

Answer:

( x+12) ( x+ 5)

Step-by-step explanation:

x^2 + 17x + 60

What 2 numbers multiply to 60 and add to 17

12* 5 = 60

12 +5 = 17

( x+12) ( x+ 5)

Answer:

4.167%

Step-by-step explanation:

Given: It was predicted that it will take 23 minutes to drive to grandma's house but it actually takes 24 minutes.

To find: percent error

Solution:

Predicted time = 23 minutes

Actual time = 24 minutes

Error is the difference between Approximate and Exact Value. Percentage Error is used to compare an estimate value to an exact value.

Error = 24 - 23 = 1 minute

Percent error = (error/actual time) × 100

= 4.167%

Answer: 7 hundreds are in 700

Step-by-step explanation: because if you divide 700 by 100 it equals 7.

p = 7000 is the amount deposited, aka the principal

r = 0.15 is the decimal form of 15% interest rate

t = 2 is the number of years the money sits in the account

--------------

B = p*(1+r)^t

B = 7000*(1+0.15)^2

B = 7000*(1.15)^2

B = 7000*(1.3225)

B = 9257.50

Subtract off the deposited amount to get the interest earned

i = B - p = 9257.50 - 7000 = 2257.50

Answer:

17.6%   or   18% (to the nearest percent)

Step-by-step explanation:

The increase in temperature is 12°.  Compare that to 68°:  

 12°

------- = 0.176

68°

Now multiply this result by 100%:  17.6%

Answer:

Simplify inside the parentheses by dividing coefficients, subtracting the exponents on like bases, and raising the resulting expression to the –3 power. Then, write bases with positive exponents.

Raise the numerator and denominator to the –3 power. Then, using the power of a power property, multiply the exponents. Divide the coefficients and subtract the exponents on like bases, then write with positive exponents.

Step-by-step explanation:

Answer:Simplify inside the parentheses by dividing coefficients, subtracting the exponents on like bases, and raising the resulting expression to the –3 power. Then, write bases with positive exponents.

Raise the numerator and denominator to the –3 power. Then, using the power of a power property, multiply the exponents. Divide the coefficients and subtract the exponents on like bases, then write with positive exponents.

Step-by-step explanation:

correct on edg....  Good Luck!!!

Step-by-step explanation:

let total pizzas = y

so

32/100 x y = 64

y= 64× 100/32

= 200 pizzas

Answer:

extra cheese pizza and pizza who be equivalent to 9/100=27/x

Step-by-step explanation:

9/100x3/3 =X/27

27/300=X/27

X=300

Answer:

a) ∠TWV

b)∠GHD

Step-by-step explanation:

Answer:

1/2 thank you for the points :))

Step-by-step explanation:

Answer:

four over eight

Step-by-step explanation:

Answer:

△E'L'M'

Step-by-step explanation:

-90° rotation = 270° rotation

Which maps (x,y) onto (y,-x)

L' (2,-3)

M' (7,-6)

E' (-3,-7)

Answer:

c ≈ 6.08 m

Step-by-step explanation:

Your question is how to solve for a missing side length of a triangle when given 2 sides length and an angle. The side length can be solved using the cosine rule . We use cosine rule to find the length of a side of a triangle when given two sides and an included angle.

The cosine rule formula for finding a side length are as follows

c² = a² + b² - 2ab cosC

b² = a² + c² - 2ac cosB

c² = a² + b² - 2ab cosC

Using cosine rule

c² = 4² + 3² - 2 × 4 × 3 cos 120°

c² = 16 + 9 - 24 cos 120°

c² = 25 - 24 (-0.5)

c² = 25 + 12

c² = 37

square root both sides

c = √37

c = 6.0827625303

c ≈ 6.08 m

Answer: 33/4 miles per hour

Step-by-step explanation:

Hi, to answer this question we simple have to divide the distance travelled by the bike (2 3/4) by the time spent (1/3)

Speed rate = distance /time

Replacing with the values given:

S = 2 3/4 ÷ 1/3 = (2x4+3)/4 ÷1/3 =11/4 ÷1/3= 33/4 miles per hour

Feel free to ask for more if needed or if you did not understand something.

The question above is not compleye because it lacks the diagram box the shipping box.

Find attached to this answer the diagram of the shipping box which contains the question and the appropriate options to choose from.

Answer:

1/32 cubic yards or 1/32 yards³ (yd³)

Step-by-step explanation:

Looking at the attached diagram, the shipping box has the shape of a cube.

Therefore, the volume of the shipping box is calculated as :

Length × Width × Height

Where the

Length = 1/2 yard

Width = 1/4 yard

Height = 1/4 yard

Volume of the shipping box = 1/2 yard × 1/4 yard × 1/4 yard

= 1/32 cubic yards or 1/32 yards³ (yd³)

Answer:

Two triangles are similar.

=> RT/GN = TA/NL

=> 4/x = 8/(x + 5)

=> 4x + 20 = 8x

=> 4x = 20

=> x = 5

=> Option D is correct

Hope this helps!

:)