PLEASE HELP WILL MARK BRAINLIEST !!!

Answer:

(2x + 5)(2x + 1)

Step-by-step explanation:

 4x^2 + 12x + 5

=4x^2 + 2x  + 10x + 5

=2x(2x + 1) + 5(2x + 1)

=(2x + 5)(2x + 1)

Hope this helps!

Answer:

The speed of light moving along the shoreline when it is 1 km from P is 2.1064 km

Step-by-step explanation:

We are given that a point 1 km from point P on the shoreline would  form a a right triangle with the lighthouse, point P, and the point 1 km from  point P.

The distance from that point to the lighthouse would be the hypotenuse.

That would also be the radius of the circle the beam of light is making at that point.

To find the hypotenuse

[tex]Hypotenuse^2 = Perpendicular^2 +base^2 \\r^2 = 1^2 +2^2\\r=\sqrt{1^2+2^2}\\r=2.236[/tex]

Circumference =[tex]2 \pi r = 2 \times 3.14 \times 2.236=14.05 km[/tex]

The beam of light is making at point 14.05 km away

One revolution: [tex]\frac{60}{9}= 6.67[/tex] sec per revolution

Speed = [tex]\frac{14.05}{6.67}=2.1064[/tex]

Hence The speed of light moving along the shoreline when it is 1 km from P is 2.1064 km

Answer:

x = 3 and y = -2

Step-by-step explanation:

We have the following system:

-3 5 | 19

3  4  | 1

4 -8 | 28

We divide the first row by -3 and it would be:

1 -1.67 | 6.33

3   4    | 1

4  -8    | 28

Now, we multiply by 3 and subtract the second row and we have:

1 -1.67 | 6.33

0     9 | -18

4    -8 | 28

Now, we multiply by 4 and subtract the third row and we have:

1 -1.67 | 6.33

0    9   | -18

0 -1.33 | 2.67

divide the second row by 9:

1 -1.67  | 6.33

0    1    | -2

0 -1.33 | 2.67

multiply the second row by 1.33 and add it to the third row and it remains:

1 -1.67 | 6.33

0    1   | -2

0   0   | 0

multiply the second row by 1.67 and add it to the first row and we have:

1 0  | 3

0 1  | -2

0 0 | 0

Therefore, from here we can deduce that x = 3 and y = -2

Answer:

3/20

Step-by-step explanation:

Red = 3

Blue = 3

Green = 4

Total = 3+3+4 = 10

Pr (red) = 3/10

Pr blue) = 3/10

Pr (green) = 4/10

Where Pr = probability

You either have a head or a tail when tossing a coin

Probability of having head = 1/2

Probability of having tail = 1/2

The probability of the coin landing heads up and blue marble = Probability of head ×Pr (blue)

= 1/2 × 3/10

the probability of the coin landing heads up and blue marble = 3/20

Answer:

3/20

Step-by-step explanation:

Answer:

so I dont understand Spanish sorry I just need the points ㅠㅠ

Answer:

2-sqrt(3)

Step-by-step explanation:

google said

Answer:

7/8

Step-by-step explanation:

1 1/4 - 3/8

5/4 - 38  

0/8 - 3/8  

7/8

Answer:69

Step-by-step explanation: Because I am smart

Answer:

6√2-2√30+6-2√15

Step-by-step explanation:

(√12+√6)(√6-√10)=

√12*6- √12*10+√6*6-√6*10=

6√2-2√30+6-2√15

Answer:

yes

Step-by-step explanation:

All four sides of a rhombus are congruent. Its properties include that each pair of opposite sides is parallel, also making it a parallelogram. ... All rectangles are parallelograms, but not all parallelograms are rectangles. And all of these shapes are quadrilaterals.

Answer:

  $18,527.74

Step-by-step explanation:

Each year, the fund amount is multiplied by 1+8% = 1.08. After 10 years, it will have been multiplied by that factor 10 times, 1.08^10. For some principal P deposited now, we want ...

  P(1.08^10) = $40,000

  P = $40,000/1.08^10 ≈ $18,527.74

Answer:

x=32 y=416 M<ABC=158°

Step-by-step explanation:

Answer:

y = 7x + 24

Step-by-step explanation:

m = 7

y = mx + b

3 = 7(-3) + b

24 = b

y = 7x + 24

Answer:

C - The cost of fabric compared with its length over time.

Answer:

Shift f 8 units down.

Step-by-step explanation:

The complete question is

[tex]f(x) =x^2 ,g(x) ​ =x^2-8[/tex]. ​ We can think of g as a translated (shifted) version of f. Complete the description of the transformation. Use nonnegative numbers. To get the function g, shift f by___ units.

We know that g is obtained by shifting f, k units up or down (depending of the value of k, if positive, the shifting is up, or down otherwise). At any point x, we get g(x) by adding k units to the value of f(x). That is

[tex]g(x) = f(x)+k[/tex]

If we replace the meaning of f,g we get

[tex]x^2-8 = x^2[/tex]

by substracting x^2 on both side we get that k = -8. This means that to get g, we must shift f 8 units down

Answer:

1) Flowchat Attached

2) See the Explanation

3) Large eggs leaving plant per minute =  [tex]E_L=50(eggs/min)[/tex]

   Percetange of broken = 22%

4) Right Handed

Step-by-step explanation:

(SEE THE ATTACHMENT)

Egg balance:

[tex]E_{in}=E_X +E_L\\[/tex]

[tex]120(eggs/min)=E_L + 70(eggs/min)\\E_L=120(eggs/min)-70(eggs/min)\\E_L=50(eggs/min)[/tex]

Broken Egg Balance:

[tex](0.3)E_{in}=(x)E_L+ E_X\\0,3\cdot120=x\cdot50+25\\36=50x+25\\50x=36-25\\50x=11\\x=\frac{11}{50}\\x=0.22\\[/tex]

Number of large eggs leaving each minute was found by egg balance in Part (2)

[tex]E_L=50(eggs/min)[/tex]

Fraction of them broken was found by broken egg balance in Part (2)

x=0.22

Convert it into a percentage

[tex]x=\frac{22}{100}\cdot10 = 22\%\\[/tex]

Percentage of broken eggs in Right hand = 22%

Percentage of broken eggs in Left Hand = [tex]\frac{25}{70}\cdot100=36\%[/tex]

As percentage of broken eggs in his Right hand is less than in his Left Hand, He is RIGHT HANDED.

Answer:

5.37% probability that a bulb picked at random from this company product will have a life time of at least 300 hours

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

[tex]\mu = 210, \sigma = 56[/tex]

What is the probability that a bulb picked at random from this company product will have a life time of at least 300 hours?

This is 1 subtracted by the pvalue of Z when X = 300. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{300 - 210}{56}[/tex]

[tex]Z = 1.61[/tex]

[tex]Z = 1.61[/tex] has a pvalue of 0.9463

1 - 0.9463 = 0.0537

5.37% probability that a bulb picked at random from this company product will have a life time of at least 300 hours

Answer:

8

Step-by-step explanation:

18(4/3)=24

6(4/3)=h

h=8

Answer:

h = 8

Step-by-step explanation:

These shapes are similar, so you can set up a proportion to solve for h:

[tex]\frac{24}{18}= \frac{h}{6}[/tex]

Cross multiply:

[tex]\frac{144}{18h}[/tex]

Divide 144 by 18:

h = 8

Answer:

The correct option is (a).

Step-by-step explanation:

The dependent t-test (also known as the paired t-test or matched-samples t-test) compares the two means associated groups to conclude if there is a statistically significant difference amid these two means.

We use the paired t-test if we have two measurements on the same item, person or thing. We should also use this test if we have two items that are being measured with a unique condition.

For instance, an experimenter tests the effect of a medicine on a group of patients before and after giving the doses.

In this case the researcher selected a random sample of the sleep quality of  lonely people and the random sample of the sleep quality of non-lonely people.

Both the sample in this case are selected from two very different population.

This clearly indicates that the study design is for non-related samples.

Thus, the correct option is (a).

Answer:

True

Step-by-step explanation:

Answer:

therefore x equals 3

Step-by-step explanation:

g(1) = 1² + 1 = 2

Answer:

y = -7x + 14

Step-by-step explanation:

m=1/7

m perp = -7

y = mx + b

-7 = -7(3) + b

14 = b

y = -7x + 14

Answer:

Associative Property of Addition

Step-by-step explanation:

Looking at the expression, you can see that the numbers have been grouped differently. Based on the Associative Property of Addition, the sum of the numbers is the same despite the different pairing.

Answer:

(AE )(EB)=(CE)(ED)

Step-by-step explanation:

The lines (AE )(EB)=(CE)(ED)

Line AE is congruent with line CE and Line EB is congruent with ED

A line is congruent when they assume the same shape and form but only they can be flipped;

AB and CD are both line segments.

Answer:

fourth option

Step-by-step explanation:

Given two intersecting chords, then

The product of the parts of one chord is equal to the product of the parts of the other chord, that is

AE(EB) = CE(ED)

Answer:

23

Step-by-step explanation:

Ā means the average

So it means the average of 64 gave their speech which should be 64/2 = 32

So 32 gave their speeches yesterday,

7 gave today

Total number that has given is

32 + 7 = 39

Therefore the number remaining are

62 - 39 = 23

Answer:

Step-by-step explanation:

(b) The given line is in standard form, so the equation you want will be similar, but with a different right-side constant. That constant is found by putting the coordinates of the given point into the left-side expression.

  x + 2y = constant

  (-3) +2(6) = constant = 9

The standard form equation of the parallel line is x +2y = 9.

__

(a) To put this equation in slope-intercept form, solve for y.

  2y = -x +9

  y = (-1/2)x +9/2

Answer:

Two or more decimal numbers are said to be equivalent decimals, when they name the same value (or same amount). For example, the decimals: 0.2 = 0.20 = 0.200 = 0.2000 etc. Thus by successive addition of zeros after the decimal part of the number after the decimal point means the same number and hence are equivalent. Therefore, the decimals: 5.3, 5.30, 5.300, 5.3000 etc are all equivalent.

Answer:

Two or more decimal numbers are said to be equivalent decimals, when they name the same value (or same amount). For example, the decimals: 0.2 = 0.20 = 0.200 = 0.2000 etc. Thus by successive addition of zeros after the decimal part of the number after the decimal point means the same number and hence are equivalent. Therefore, the decimals: 5.3, 5.30, 5.300, 5.3000 etc are all equivalent.

for example, si te pones los zapatos antes que los pantalones, te costará mucho vestirte