PLEASE HELP THIS IS VERY IMPORTANT I'LL GIVE YOU BRAIN THING IF ITS CORRECT!! <3 NO LINKS PLEASEE.

Answer:

Natalie is 13 years old, while Fred is 28 years old.

Step-by-step explanation:

Given that if you add Natalie’s age and Fred’s age, the result is 41, and if you add Fred’s age to 3 times Natalie’s age, the result is 67, to find how old Fred and Natalie are, the following calculation must be performed:

N + F = 41

3N + F = 67

(67 - 41) / 2 = N

26/2 = N

13 = N

13 x 3 + F = 67

39 + F = 67

F = 67 - 39

F = 28

28 + 13 = 41

Therefore, Natalie is 13 years old, while Fred is 28 years old.

9514 1404 393

Answer:

  x^2 +4x -21

Step-by-step explanation:

Substitute the given expressions and simplify.

  f(x) + g(x)

  = (x^2 +3x -28) +(x +7)

  = x^2 +(3+1)x +(-28 +7)

  = x^2 +4x -21

Answer:

20.5

Step-by-step explanation:

Answer:

luke and han solo

Step-by-step explanation:

because han solo have the most mins and luke is one of thr 2 mins and that added is 7min

Attached is a graph showing y=1/2x-3

The surface area of the figure will be equal to 1326 square meters.

The space occupied by any two-dimensional figure in a plane is called the area. The area of the outer surface of any body is called as the surface area.

Given that:-

The surface area will be calculated as:

SA = 2 { LW + LH + WH )

SA = 2 { ( 9 x 12) + (15 x 22 ) + (15 x 9 )}

SA = 1326 square meters.

Therefore the surface area of the figure will be equal to 1326 square meters.

To know more about a surface area follow

https://brainly.com/question/25292087

#SPJ2

Solution :

      x                   [tex]$(x-\overline x)$[/tex]                          [tex]$(x-\overline x)^2$[/tex]

45860             -1742.8571                 3037551.0204

38860            -8742.8571                 76437551.0204

64820              17217.1429                296430008.1633

63480             15877.1429                252083665.3061

36710              -10892.8571              118654336.7347

50410             2807.1429                 7880051.0204

33080             -14522.8571            210913379.5918    

333220          0.0000                        965436542.8571

Sample size, n = 7

Mean = [tex]$\frac{\sum x}{n}=\frac{333220}{7}$[/tex]

                   = 47602.8571

Variance = [tex]$\frac{(\sum (x- \overline x))^2}{(n-1)}=\frac{965436542.8571}{7-1}$[/tex]

                                       = 160906090

Standard deviation = [tex]$\sqrt{Variance} = \sqrt{160906090}$[/tex]

                                                     = 12684.876

a). df = n - 1

        = 7 - 1

       = 6

Level of significance, α = 0.02

Critical, [tex]$t_c = 3.143$[/tex]

b). Sample mean, [tex]$\overline x = 47602.8571$[/tex]

    Sample standard deviation, s = 12684.876

Sample size, n = 7

c). 98% confidence interval = [tex]$\overline x \pm t_c \times \frac{s}{\sqrt n}$[/tex]

                                             [tex]$=47602.8571 \pm 3.143 \times \frac{12684.876}{\sqrt 7}$[/tex]

                                             [tex]$=(32533.96,62671.76)$[/tex]

Answer:

80 is the median

The median is just the number in the middle and since 80 is in the middle the median is 80 hope that helps!

Answer:

options pls. or any image.......................................

The distance between two points is √29 unit.

The relationship between the three sides of a right-angled triangle is explained by the Pythagoras theorem, also known as the Pythagorean theorem. The Pythagorean theorem states that the square of a triangle's hypotenuse is equal to the sum of its other two sides' squares.

We have the points (-2, 3) and (3, 1).

Using Distance formula

= √(1-3)² + (3 - (-2))²

= √ (-2)² + (5)²

= √ 4 + 25

= √29 unit

Thus, the distance between two points is √29 unit.

Learn more about Pythagoras theorem here:

https://brainly.com/question/343682

#SPJ3

Answer:

[tex]y = \frac{384}{9}[/tex]

Step-by-step explanation:

Given

[tex]y\ \alpha\ x^2[/tex] --- direct variation

[tex](x,y) = (3,24)[/tex]

Required

y when x = 4

[tex]y\ \alpha\ x^2[/tex]

Express as an equation

[tex]y = kx^2[/tex]

Substitute: [tex](x,y) = (3,24)[/tex]

[tex]24 = k*3^2[/tex]

[tex]24 = k*9[/tex]

Solve for k

[tex]k = \frac{24}{9}[/tex]

To solve for y when x = 4, we have:

[tex]y = kx^2[/tex]

[tex]y = \frac{24}{9} * 4^2[/tex]

[tex]y = \frac{24}{9} * 16[/tex]

[tex]y = \frac{24 * 16}{9}[/tex]

[tex]y = \frac{384}{9}[/tex]

The Answer Is 18

Order Of Operation laws says that you must do the parentheses first, 45x2.

45x2=90

The next thing you must do is divide 90 by 10 since division is before addition.

90/10=9

Now combine like terms.

9+9=18

Answer:

Em matemática, costumamos usar a letra “x” para representar a quantidade desconhecida. Mas agora x está em toda parte em nossa sociedade. As pessoas usam “x” para representar algo inexplicável ou desconhecido, como raio-X, arquivo X e  i hope that helps :)

Answer:

The best measure of center for a set of data is the median value.

To find the median list the values from

Smallest to largest:

0, 0, 1, 1, 2,2, 2, 14

Since there is an even number of values, find the middle two numbers, add them together and divide by 2:

1+2 = 3

3/2 = 1.5

The answer is median 1.5

Step-by-step explanation:

plz brain list

Answer:

D)6x^4+3x^3y

Step-by-step explanation:I hope this helps,good luck with everything,have a nice day.

Answer:

56  hardwood     80  pine bark

Step-by-step explanation:

H = hardwood    B= pine bark

B +H = 136

B = (136-H)

4.25 H + 3.75 (136-H) = 538

4.25H + 510 - 3.75H = 538

0.5 H = 28

1H = 56   (56 Hardwood)

136-56= 80  

56x 4.25 + 80 x 3.75 = 538

$238 + $300 = $538

Answer:

A= 30 sq feet

? = 5 feet

Step-by-step explanation:

if the total area is 104 square feet and we know where 44 square feet of that is accounted for that leaves 60 square feet so both A sections are equal so we can divide 60 by 2 to get 30 square feet. So "A" is 30 square feet.

to get "?" we need to find the other measurement for the 10 square foot sections, the easiest way to find that is 10 divided by 2 ( which is the measurement we already have), once we do this we get 5 feet, and because 5 feet is the height measurement for that part of the net diagram we know that the "?" will need to be 5 as well because it is also a height measurement.

Answer:

the answer should be B becaise just multiply and then round up that is what I got good luck

Answer:

Area:

4 x 4 = 16

Finding area of semi circle:

4 is your diameter so half of it is your radius which is 2 since half of 4 is 2!

2^2<---your radius being squared = 4

4(radius squared) x 3.14(pi) = 12.56

12.56 divided by 2 since its a semi circle is = 6.28

6.28 + 16 = 22.28 is your area

Perimeter is:

4 + 4 + 4 (all sides of a square are equal therefore one or two given lengths will be all the sides) = 12

Circumference:

Radius is 2,

2(you just always have to multiply this number when finding circumference) x 3.14(pi) x 2(radius), 2 x 3.14 x 2 = 12.56

12.56 divided by 2 = 6.28

6.28 + 12 = 18.28 is your perimeter.

Just a refresh:

Circumference Formula:

2(always use this number when finding circumference) x pi(3.14 or 22/7 depending on what they tell you to use for pi) x radius

Area of a Circle Formula:

Radius squared x pi(3.14 or 22/7 whatever they tell you to use for pi)

Another thing you should remember:

Whenever it gives you 1/4 of a circle or 1/3 or a semi circle or any fraction, REMEMBER TO DIVIDE BY THAT DENOMINATOR TO WHAT YOU GET FROM EITHER CIRCUMFERENCE OR AREA OF A CIRCLE!

Answer:

100

Step-by-step explanation:

Answer: The mode is 12

Step-by-step explanation: It is the most common number in the data set.

Step-by-step explanation:

the answer is 35 if he want the degree of c in RCD trangle

and if you want the RCD and The PCD deegrees total its 70

Answer:

Step-by-step explanation:

the 1st and 2nd b/c they are both square the input number  

Answer:

d it is D

Step-by-step explanation:

Answer:

Step-by-step explanation:

the "answer" below is why the brainly community, most of it atleast is shi

Answer:

9

Step-by-step explanation:

to find the whole number of this fraction all you have to do is do the top number divided by the bottom so... 36 ÷ 4 = 9 and we get 9 Hopefully that helps!

Answer:

[tex]r \geqslant - 5 [/tex]

Step-by-step explanation:

[tex]50 - 4r \leqslant 70[/tex]

[tex] - 4r \leqslant 20[/tex]

[tex] \frac{ - 4r}{ - 4} \geqslant \frac{20}{ - 4} [/tex]

[tex]r \geqslant - 5[/tex]