Evaluate the function.
Given f(x) = x2 - 4x2 - 3x - 5, find f(5).

Answer:

3 - 2x

Step-by-step explanation:

Answer:

9-9x = 0                x=1

Step-by-step explanation:

Put each term in 6+(-9-6 x)/3-x over the common denominator 3: 6+(-9-6 x)/3-x  =  18/3+(-9-6 x)/3-(3 x)/3:

18/3+(-9-6 x)/3-(3 x)/3 = 0

18/3+(-9-6 x)/3-(3 x)/3 = (-3 x+(-9-6 x)+18)/3:

(-3 x-6 x-9+18)/3 = 0

Grouping like terms, -3 x-6 x-9+18 = (18-9)+(-6 x-3 x):

((18-9)+(-6 x-3 x))/3 = 0

-6 x-3 x = -9 x:

(-9 x+(18-9))/3 = 0

18-9 = 9:

(9-9 x)/3 = 0

Multiply both sides of (9-9 x)/3 = 0 by 3:

(3 (9-9 x))/3 = 3×0

(3 (9-9 x))/3 = 3/3×(9-9 x) = 9-9 x:

9-9 x = 3×0

0×3 = 0:

Answer:

13.46

Step-by-step explanation:

the number after 6 is less than 5 so the number wont change

Answer:

16

Step-by-step explanation:

According to the given description, PS is the mid segment of the [tex] \triangle TQR[/tex]

Therefore by Mid-segment Theorem:

[tex]PS = \frac{1}{2} QR \\ \\ PS = \frac{1}{2} \times 32 \\ \\ PS =16 \: [/tex]

Answer: 43=1 81=3 Might not be right. Hope it is.

Answer:

Step-by-step explanation:

in this triangle

X^2=a^2+b^2

X^2=15^2+8^2

x^2=225+64

x^2=289

x=17

Answer:

X is always equal to 1 no matter the equation. In this it looks like you are using Pyth. Theory. If its not sorry, but X = 1  

Step-by-step explanation:

[tex]A^{2} +B^{2}=C^{2} \\15^{2}+8^{2} \\225+64\\C^{2}=289\\\sqrt289\\C=17[/tex]  

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

Number of tickets can only be represented by integer values. A value of 3.5 for t would imply you can purchase three and a half tickets, which isn't possible.

Answer:

its option 3

Step-by-step explanation:

got 100% on it

Blinding and placebo should be used in this experiment to prevent patients from knowing which therapy they are receiving and to account for the placebo effect.

A person experiences the placebo effect when their physical or mental health seems to get better after receiving a placebo or "dummy" treatment. A treatment that seems to be real but is intended to have no therapeutic benefit is referred to as a placebo.

Given, If a new cholesterol drug is more successful than the old one, a doctor wants to know. The doctor tells his patients about the new drug and inquires about their interest in taking part in a trial. Randomly chosen patients who are already receiving cholesterol medication are given the new drug. The patients' cholesterol levels are assessed after two months.

Treatments with placebos cause the brain to react in a real way. Belief in the efficacy of a treatment can cause the release of neurotransmitters, the synthesis of hormones, and immunological response, which can reduce the symptoms of pain, inflammatory diseases, and mood disorders.

Therefore, In order to keep patients from knowing which therapy they are taking and to take the placebo effect into account, blinding and placebo should be employed in this experiment.

Learn more about the placebo effect here:

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Answer:

7+- root 57 / 4

d. 7+root 57/4 , 7-root 57/4 on edg

Step-by-step explanation:

got it right :)

Answer:

D

Step-by-step explanation:

Edge 2021

Answer:i DIO! think the answer would be 50

Step-by-step explanation:

if im correct please give me brainly wrrryyyyy... (yes im a weeb)

Answer:

D

Step-by-step explanation:

(-8) - (-8) = (-8) + 8 = 0

I hope this answer helped, and if it was correct, please mark this as brainliest! Thank you!

Answer:

41.81 ; 12.67

Step-by-step explanation:

Given the data:

Age range, years 18-28 29-39 40-50 51-61 62 and over

Midpoint x 23 34 45 56 67

Percent of super shoppers 9% 46% 22% 11% 12%

Midpoint, x : 23 34 45 56 67

Frequency, f : 0.09_ 0.46 _ 0.22 __0.11 __ 0.12

The mean(m)

Σfx / Σf

[(23 * 0.09) + (34 * 0.46) + (45 * 0.22) + (56 * 0.11) + (67 * 0.12)] / (0.09 + 0.46 + 0.22 + 0.11 + 0.12)

= 41.81 / 1

Mean = 41.81

Standard deviation :

Sqrt[(Σ(X² * f) / Σf) - m²)]

((23^2*0.09) + (34^2*0.46) + (45^2*0.22) + (56^2*0.11) + (67^2*0.12)) / 1

1908.51 - 41.81^2

Sqrt(160.4339)

= 12.666250

= 12.67

Given:

Total number of students = 20

The marks of the students are 40, 22, 36, 27, 30, 12, 15, 20, 25, 31, 34, 36, 39, 41, 43, 48, 46, 36, 37 and 40.

To find:

The frequency distribution table with class size 10.

Solution:

We have, the marks of 20 students.

40, 22, 36, 27, 30, 12, 15, 20, 25, 31, 34, 36, 39, 41, 43, 48, 46, 36, 37, 40

Here,

Minimum value = 12

Maximum value = 48

We nee class intervals of size 10. So, the required class intervals are 10-20, 20-30, 30-40, 40-50. In these intervals, lower limit is excluded but the upper limit included.

The required frequency distribution table is

Class intervals      Marks                                                  Frequency

10-20                    12, 15                                                            2

20-30                   22, 27, 20, 25                                             4

30-40                   36, 30, 31, 34, 36, 39, 36, 37                      8

40-50                   40, 41, 43, 48, 46, 40                                  6

Total                                                                                        20

Therefore, the frequency distribution table is

Class intervals:      10-20        20-30        30-40         40-50         Total

Frequency      :          2                4                8                6                20

Answer: 77/30

Step-by-step explanation:

Hope this helps :)

Step-by-step explanation:

Percentage of students who want to be an athlete

= 12%.

400 students * (12%/100%) = 48 students.

Hence 48 students want to be an athlete.

The number of athletes students which are 12% of 400 students will be 48.

The quantity of anything is stated as though it were a fraction of a hundred. A quarter of 100 can be used to express the ratio. Per 100 is what the term percent signifies. The symbol ‘%’ is used to symbolize it.

The percentage is given as,

Percentage (P) = [Final value - Initial value] / Initial value x 100

The graph shows the career interests of the students at Linda’s school. Suppose there are 400 students at the school.

From the graph, the percentage of athletes is 12%.

The number of athletes students which are 12% of 400 students will be given as,

⇒ 12% x 400

⇒ 0.12 x 400

⇒ 48

The number of athletes students which are 12% of 400 students will be 48.

More about the percentage link is given below.

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Answer:

101 = first number

115= second number

101+115=116

101 and 115

yes they are odd because you can not add two nubers to make 101 or 115

yes. they do add up to 116.

Step-by-step explanation: hope this helped

Answer:

81

Step-by-step explanation:

Its a perfect square and 27*3=81

Answer:

An aquifer is an underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials. It pulls precipitation down from clouds and pulls water downhill. Gravity also moves air and ocean water. Gravity pulls denser air and water downward, forcing less dense air and water to move upward.

Step-by-step explanation:

Answer:

[tex]\displaystyle y = \frac{1}{2}x + 5[/tex]

Step-by-step explanation:

Equation of a Line

The point-slope form of the equation of a line is:

y - k = m ( x - h )

Where m is the slope and (h,k) is a point through which the line passes.

Suppose a line passes through points A(x1,y1) and B(x2,y2). The slope can be calculated with the formula:

[tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]

We'll use the points (-4,3) and (2,6), thus:

[tex]\displaystyle m=\frac{6-3}{2+4}=\frac{3}{6}=\frac{1}{2}[/tex]

Now we use the point-slope form using the point (2,6):

[tex]\displaystyle y - 6 = \frac{1}{2}( x - 2 )[/tex]

Operating:

[tex]\displaystyle y - 6 = \frac{1}{2}x - 1[/tex]

[tex]\displaystyle y = \frac{1}{2}x - 1 + 6[/tex]

[tex]\boxed{\displaystyle y = \frac{1}{2}x + 5}[/tex]

Answer:

3 acute angles

1 right 2 acute

1 obtuse 2 acute

Step-by-step explanation:

Answer: Acute and 1 right would be a set of angles that are able to form  triangle.

Answer:

x=-1/4

Step-by-step explanation:

-4/16=16x/16

-1/4=x

Answer:

1/6

Step-by-step explanation:

1 peice of pizza for each person with a total of 6 peices

Answer:

THe answer is 1092.

Step-by-step explanation:

1 + 1 + 90 + 1000

2 + 90 + 1000

92 + 1000

1092

Answer:

YEA!! THX

Step-by-step explanation:

Answer:

z = 66

Step-by-step explanation:

RS = z

QT = z - 33

Based on the midsegment theorem, QT = ½(RS)

Plug in the values

z - 33 = ½(z)

Multiply both sides by 2

2(z - 33) = z

2z - 66 = z

Add 66 to both sides

2z = z + 66

Subtract z from both sides

2z - z = 66

z = 66

Answer:

Step-by-step explanation:

Por aspa simple:

x²+x-30=0

X       +6

X        -5

(x+6)(x-5)=0

x+6=0

x=-6

x-5=0

x=5

espero te sirva suerte en tus estudios :D

Answer:

1. -21

ill do others in a bit