•The total surface Areas of a cone of base radius r and perpendicular height h, his given by s=πr ² +πr√(r²+h²). iF r and h are each increasing at the rate of 0.5m/s and 0.2m/s respectively, find the rate at which s is increasing at the instant when r=3m and h =4m​

Answer:

-53

Step-by-step explanation:

if m = − 4 , n = 1 , p = 2 , q = − 6 , r = 5 , and t = − 2

-| 10 - 7r + 8m + 2p |

Substitute the given values into the equation.

-| 10 - 7(5) + 8(-4) + 2(2) |

Simplify

-| 10 - 35 + -32 + 4) |

-| -53 |

= -53

Absolute value of -53 is 53 however there is a negative sign outside of it, so the answer is -53

Answer: 35.

Step-by-step explanation: 33 + 34 + 35 is 102. Your 35 is the largest of the three.

Answer:

length x width x height (or depth) = volume

Step-by-step explanation:

761.25 or 761 1/4 is the answer

Answer:

-1 31/65

Step-by-step explanation:

I did this before trust me

Answer:

[tex] \sf \large - 1 \frac{31}{65} [/tex]

Step-by-step explanation:

6 2/5/-4 1/3

6 2/5/−4 1/3

=32/5/−4 1/3

= 32/5 −13/3

=32/5/−13/3

=−96/65

= −1 /31/65

In one minute,  Charles can type in 3-minute 225 words.

In one minute,  Charles can type

 675/9 = 75 words.

Hence,  in  3 minutes  Charles can tape  [tex]75\times3[/tex] = 225 words  (if works with the same rate).

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A real valued function f(x) is said to be decreasing on the interval [a,b] for all x1,x2 if x1 < x2, And f(x1) > f(x2)

A function is said to be increasing if we increase the value of the independent variable the function also increases and a function is said to be decreasing if we increase the value of the independent variable the function decreases.

According to the given question real-valued function f (x) is said to be increasing on the closed interval [a, b] if for all x1, x2 ∈ [a, b], if x1 < x2, then f (x1) < f (x2).

A real valued function f(x) is said to be increasing on the interval [a,b] if a < b, And f(a) < f(b).

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Answer:

False

Step-by-step explanation:

The scale is for length only, when converting to area scale, you have to square both sides of the scale.

1 in² = 144 ft²

Answer: Unable to answer

Step-by-step explanation: If you do not show what the constant rate is, I am unable to solve it for you.

The amount the restaurant needs to earn on Sunday to average $1000 per day over the three-day period is $819.

What is average ?

The average is the ratio of the sum of the number of a given set of values to the total number of values present in the set.

It is given that restaurant earns $1073 on Friday and $1108 on Saturday.

The amount which restaurant needs to earn on Sunday to average $1000 per day over the three-day period can be calculated by finding the average.

The average is given by ratio of sum of amount on each day from Friday to Sunday and divide it by number of days.

Let's assume amount earn on Sunday is $x.

So ,

[tex]\frac{1073 + 1108 + x}{3}[/tex] = 1000

1073 + 1108 + x = (1000 × 3)

2181 + x = 3000

Let's solve this equation to get the value of x.

x = 3000 - 2181

x = $819

So , amount earn by restaurant is $819.

Therefore , the amount the restaurant needs to earn on Sunday to average $1000 per day over the three-day period is $819.

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Answer: 5

Step-by-step explanation:

[tex]\sqrt{20+5}[/tex]=

[tex]\sqrt{25}[/tex]=5

Answer:

√(20 + 5) = 5

Step-by-step explanation:

Let's solve the problem,

→ x = √(20 + 5)

→ x = √25

→ [ x = 5 ]

Hence, the answer is 5.

Answer:

[tex]\frac{211}{500}[/tex]

Step-by-step explanation:

[tex].4\bar{2}[/tex]  means the 2 repeats till infinity
[tex].4\bar{2}[/tex]  = .4222222222.....

To convert to fraction just take the first three decimal place digits 422 and divide by 1000 to convert to fraction

[tex].4\bar{2} = \frac{422}{1000}[/tex]

Dividing numerator and denominator of this fraction by 2 gives
[tex]\frac{422/2}{1000/2} =\frac{211}{500}[/tex]

This cannot be simplified further and therefore
[tex].4\bar{2} = \frac{211}{500}[/tex]

If we had chosen first 4 decimal digits then it would be[tex].4\bar{2} = \frac{4222}{10000} = \frac{2111}{5000}[/tex]
i.e. we divide by 10,000

The change in elevation will be 0.

It should be noted that from the information, Calvin’s toy airplane flew to an elevation of 168 feet then landed back onto the flat sidewalk from where it was launched.

Therefore, when it flew, the expression will be +168.

When it came down, the expression will be -168.

Therefore, the change in elevation will be:

= +168 - 168.

= 0

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Answer:

9 u^2

Step-by-step explanation:

there's 2 ways to solve this problem

easy way

plot every coordinate and youll see it's a square

square area = side^2

3^2 = 9 answer

and this method

working with 3 points (triangle)

W - X - Y

0       0                

0       3

-3       3

0       0

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

    2

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

0      0

0      -9

0      0

-----------

l-9/2l

4.5

since a square is made of 2 triangles

4.5 * 2 = 9 u^2

Answer:

-34.5

Step-by-step explanation:

Put together like terms:

-7x-6.5

-28-6.5

-34.5

Answer:

Numbers that can be expressed as a ratio of two number (p/q form) are termed as a rational number. Numbers that cannot be expressed as a ratio of two numbers are termed as an irrational number.

Step-by-step explanation:

please make my answer as brainelist

Answer:c=16

Step-by-step explanation:5c+35=-45=5c=-45-35=5c=-80. C=16

The following equation  [tex]y=\frac{-2x}{3}+2[/tex]  represents the given line.

An equation can be represented by a linear function. The standard form for the linear equation is: y= ax+b , for example, y=3x+1. Where:

a= the slope. It can be calculated for [tex]a=\frac{\Delta y}{\Delta x}[/tex].

b= the constant term that represents the y-intercept.

For solving  linear equations, you should organize variables on one side of the equation and the numbers on the other side. When a number or variables change side, its signal also is changed.

For the given example: a=3 and b=1

The question gives:

Thus, you can write from the question information :

y=ax+b

0= -2/3*(3)+b

0= -2 + b

b=2

Now, you know the value of the slope and the constant term.

Therefore, the standard form for the linear equation is:

[tex]y=\frac{-2x}{3}+2[/tex]

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Step-by-step explanation:

find the value of 8x³-y³if 2x-y and xy=-1

If all the widgets from the three machines are mixed together, then the probability that a good widget will be drawn at random is 0.78 or 78%.

Probability is defined as how likely an event is to occur, or how likely it is that a proposition is true.

If machine 1 makes 3000/hour and 80% are good, then the chances of it being good is 80% also or, 2400 out of 3000.

80% of 3000 is 2400

If machine 2 makes 4000/hour and 90% are good, then the chances of it being good is 90% also or, 3600 out of 4000.

90% of 4000 is 3600

If machine 3 makes 3000/hour and 60% are good, then the chances of it being good is 60% also or, 1800 out of 3000.

60% of 3000 is 1800

Mixing together the widgets from the three machines, use the formula to calculate the probability of an event which is as follows.

Probability(Event) = Favorable Outcomes/Total Outcomes = x/n

Probability(good) = (2400 + 3600 + 1800)/(3000 + 4000 + 3000)

Probability(good) = 7800/10000

Probability(good) = 0.78 or 78%

Hence, the probability that a good widget drawn at random is 0.78 or 78%.

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Answer:

janice wants to put a fire at the mid point between two of her trees in her backyard. the coordinates of tree A are (3, 5) and the coordinates of tree b are (-3,-3). step by step thinking we want tree A is coordinat at 35. three b coordinate is -3-3 .janice stand between centre that from A mark 6feet so At B is 3

Answer:

11

Step-by-step explanation:

80 /7=11.428

so each gets 11 so 77 so u do 80-77=3 so u would have 3 left over

1. A(2,8)  A'(6,7)

2. B(5,2) B'(9,1)

3. C(2,2) C'(6,1)

4. P(x,y) P'(x ₊ 4 , y ₋ 1)

5. x units to x ₊ 4 units.

   y units to y ₋ 1 units.

6. triangle A'B'C' (6 , 4)

7. triangle A'B'C' (7 , 5)

8. triangle ABC ( 3,2)

9. triangle ABC (4 , 4)

Given,

A set of values called coordinates helps to display a point's precise location in the coordinate plane.

we can observe the points from the graph we get the values for B' and C'.

P(x,y) P'(x₊,y₋)

P(2,5) P'=(6,4) ⇒(2₊4,5₋1)

P(3,6) P' = (3₊x' , 6₋y')  ⇒ (3₊4 , 6₋1) = (7,5)

P'(7,1) P = (x'₋4 , y'₊1)  ⇒ (7₋4 , 1₊1) = (3,2)

P'(8,3) P =  (x'₋4 , y'₊1) ⇒ (8₋4 , 3₊1) = (4,4)

hence we acquired the desired values of the points from the graph given.

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Answer:

Step-by-step explanation:

7x - 3 = 2x - 18

5x = -15

x = -15 : 5

x = -3

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

check

7 * (-3) - 3 = 2 * (-3) - 18

-24 = -24

the answer is good

Answer:

1)x=20

3)p=−12

5)n=−9

7)r=−18

9)x=−2

11)n=46

2)n = 3

4)v=9

6)n=−6

8)k=−17

10)x=12

12)x=−32

Step-by-step explanation:

Let's solve your equation step-by-step.

1) 2+x=22

Step 1: Simplify both sides of the equation.

x+2=22

Step 2: Subtract 2 from both sides.

x+2−2=22−2

x=20

3) −6+p=−18

Step 1: Simplify both sides of the equation.

p−6=−18

Step 2: Add 6 to both sides.

p−6+6=−18+6

p=−12

5) −29=−20+n

Step 1: Simplify both sides of the equation.

−29=n−20

Step 2: Flip the equation.

n−20=−29

Step 3: Add 20 to both sides.

n−20+20=−29+20

n=−9

7) −5+r=−23

Step 1: Simplify both sides of the equation.

r−5=−23

Step 2: Add 5 to both sides.

r−5+5=−23+5

r=−18

9) 11=x+13

Step 1: Flip the equation.

x+13=11

Step 2: Subtract 13 from both sides.

x+13−13=11−13

x=−2

11) 101=n+55

Step 1: Flip the equation.

n+55=101

Step 2: Subtract 55 from both sides.

n+55−55=101−55

n=46

2) −15=−18+n

Step 1: Simplify both sides of the equation.

−15=n−18

Step 2: Flip the equation.

n−18=−15

Step 3: Add 18 to both sides.

n−18+18=−15+18

n=3

4) −18+v=−9

Step 1: Simplify both sides of the equation.

v−18=−9

Step 2: Add 18 to both sides.

v−18+18=−9+18

v=9

6) −19=n−13

Step 1: Flip the equation.

n−13=−19

Step 2: Add 13 to both sides.

n−13+13=−19+13

n=−6

8) −12=k+5

Step 1: Flip the equation.

k+5=−12

Step 2: Subtract 5 from both sides.

k+5−5=−12−5

k=−17

10) 11=−1+x

Step 1: Simplify both sides of the equation.

11=x−1

Step 2: Flip the equation.

x−1=11

Step 3: Add 1 to both sides.

x−1+1=11+1

x=12

12) x−36=−68

Step 1: Add 36 to both sides.

x−36+36=−68+36

x=−32

Answer:

The equation for this question should be n+7=25

where n=18

Step-by-step explanation:

Answer:

negative 5 and 3/5

Step-by-step explanation:

-4-1&3/5

-5&3/5

negative 5 and 3/5(three fifths)

don't forget to mark as brainliest

Answer:

negative 5 and 3/5

Step-by-step explanation:

-4-1&3/5

-5&3/5

negative 5 and 3/5(three fifths)

don't forget to mark as brainliest

Step-by-step explanation:

The magnification scale  used was 450:1

Saturn from Earth, it looks like it has a diameter of 20 μm.

d₁=20μm

Through a telescope, the diameter looks 9,000 μm long.

d₂= 9,000 μm

magnification scale = d₂/d₁

                                =  9,000 μm/20μm

                                =  450/1

magnification scale  used was 450:1

A scale factor is a number that can be used to adjust the size of any geometrical figure or object in relation to its original size. It's used to draw the enlarged or reduced shape of any given figure, as well as to calculate the missing length, area, or volume of an enlarged or reduced figure. It should be noted that the scale factor only affects the figure's size and not its shape.

A scale factor is a number or conversion factor used to adjust the size of a figure without changing its shape. It is used to enlarge or reduce the size of an object. If the dimensions of the original figure and the dimensions of the dilated (increased or lowered) figure are known, the scale factor can be determined. A rectangle, for example, has a length of 5 units and a width of 2 units. If we raise the size of this rectangle by a factor of two, the sides will become 10 and 4, respectively. As a result, we can use the scale factor to determine the dimensions of the altered figures.

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No. of children in lamb, chicken, duck, and turkey category is 66, 24, 18 and 12 respectively.

Percentage is the value per hundredth.

According to the given question a survey was carried out among 120 school children looked at which type of meat they preferred. 55% said they preferred lamb,20% said they preferred chicken, 15% preferred duck and 10% turkey and we have to calculate no. of children in each category.

55% said they preferred lamb, So the no. of students i this category is

= (55/100)×120

= 66 children.

20% said they preferred chicken, So the no. of children in this category is

= (20/100)×120

= 24 children.

15% said they preferred duck, So the no. of children in this category is

= (15/100)×120

= 18 children.

10% said they preferred turkey, So the no. of children in this category is

= (10/100)×120

= 12 children.

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Answer:

-0.28

Step-by-step explanation:

4 ÷ 8/9 -1/2

BODMAS

8/9 ÷ 4

8/9 x 1/4

2/9 x 1

2/9 - 1/2

= -0.2777

= -0.28