Attachment Mathswatchhhh!!!!!!!!! answer only no explanation

Answer:

Surface area of the rocket = 76π

Step-by-step explanation:

Given:

Diameter = 8 in

Radius of cylinder = 4 in

Radius of cone = 4 in

Height of the cylinder = 5 in

Height of the cone = 3 in

Find:

Surface area of the rocket.

Computation:

Slant hight = [tex]\sqrt{4^2 + 3^2}[/tex]

Slant hight = 5 in

Surface area of the rocket = Surface area of cylinder + Surface area of cone + Area of circle

Surface area of the rocket = 2πrh + πrl + πr²

Surface area of the rocket = 2π(4)(5) + (π)(4)(5) + (π)(4)²

Surface area of the rocket = 40π + 20π + 16π

Surface area of the rocket = 76π

Answer:

"If there is only one line parallel, then there is only one given line."

Step-by-step explanation:

The general form of an if-then statement is:

p → q

This implies that: "if p, then q".

Then the converse of this statement is:

q → p

This implies that: "if q, then p".

The statement here is:

"If there is a given line, then there is only one line parallel to it"

The converse of this statement will be:

"If there is only one line parallel, then there is only one given line."

Answer:

They are right, the time calculated using the exponential decay equation is 1948.6 years.

Step-by-step explanation:

The time can be calculated using the exponential decay equation:

[tex]N_{(t)} = N_{0}e^{-\lambda t}[/tex]     (1)

Where:

N(t): is the quantity of C-14 at time t

N₀: is the initial quantity of C-14

λ: is the decay constant  

The decay constant is:

[tex] \lambda = \frac{ln(2)}{t_{1/2}} [/tex]   (2)    

By entering equation (2) into (1) and solving for t, we have:

[tex] t = \frac{t_{1/2}*ln(N_{t}/N_{0})}{ln(2)} = \frac{5730*ln(0.79)}{ln(2)} = 1948.6 y [/tex]

Therefore, the time of the scrolls estimated by the archeologists is right, since the time calculated using the exponential decay equation is 1948.6 years.      

I hope it helps you!

Answer:

Step-by-step explanation:

Using the half-life equation, At = Ao (1 / 2) ^ t / h, the number of years (1,900) can be substituted for t and the half-life (5,730) can be substituted for h. Since the original amount is unknown but the remaining percent is known, any value can be used for the original amount. Using 100 will be the easiest. Plugging these values into the equation gives At=100 (1 / 2) ^1900 / 5730=79.47 remaining. If 79.47 of the original 100 units are left, that is 79.47 percent. Since radiometric dating estimates age, the archeologists’ hypothesis is correct.

Answer:

4

Step-by-step explanation:

The left side  4  is equal to the right side  4 , which means that the given statement is always true. 2|2-4|=4

Answer:

C. Volume

Step-by-step explanation:

C. Volume  of a  right pyramid with base area B and height h, is

1/3Bh.

Answer:

16x2=32

Step-by-step explanation:

A multiple of 16 is any number divisible by 16. Multiplying 16 by 2 creates a number divisible by 16 and 2, meaning it is divisible by 16.

16x2=32 32/16=2

Answer: divide both numbers

Step-by-step explanation:

20.95

Step-by-step explanation:

y=4/3x+4

y int =4

x int = -1

the graph is an increasing graph line that touch 4 in y and -1 in x

m=4/3

Answer:

The correct option is the second option.

How to make a Box-and-whisker plot:

Solution explanation:

if you apply the rules of the boxplot above with both choices, the second lines up perfectly.

Answer:

A

Step-by-step explanation:

Im pretty sure its A because

55ish plus 15ish equals 70 which is their ages combined

55-60 is also 4 x 15  

Graph A shows the system and solution to the system. Option A is correct.

The sum of Sharon's and John's ages is 70. Sharon is times as old as John. The system of equations regarding the problem is determined.

The equation is the values of two expressions that are equal.

Let the age of Sharon's be x and Jhon's be y.
The sum of Sharon's and John's ages is 70.

x + y = 70  - - - - (1)

Sharon is times as old as John.

x = 4 y

Now put x = 4y in equation 1

4y + y = 70
5y = 70
y = 70/5
y = 14
Now put y = 14 in x = 4y
x = 4*14
x = 56

The solution of a system of equations is (14, 56) shown in graph 1.

Thus, graph A shows the system and solution to the system. Option A is correct.

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Answer:

See attachment

Step-by-step explanation:

Answer:

69 obviously

Step-by-step explanation:

gosh

Answer:

≈ 18.46

Step-by-step explanation:

LJ = 39, JM = 80, and LM = 89

JK= x ⇒ KL= 39-x

JM/LM= x/(39-x)

Answer:

Reflection across x = -2; clockwise rotation of 90° about the origin  

Step-by-step explanation:

Assume that the mapping is like that in Fig. 1.

1. Reflection about x = -2

It looks like the first transformation is a reflection about the line x = -2

When you reflect a shape about a line, each point in the image is the same distance from the line of reflection as the corresponding point in the pre-image.  

The rule for reflection about a line x = h is (x,y) ⟶ (2h - x, y}

We can use the rule to calculate the coordinates of the first image.

[tex]\begin{array}{cc}\textbf{A} & \textbf{A"} \\(-5,5) & (1,5) \\(-2,5) & (-2,5) \\(-1,1) & (-3,1) \\(-4, 1) & (0,1) \\\end{array}[/tex]

2. Rotation 90° clockwise about the origin

It looks like the second transformation is a 90° clockwise rotation about the origin.

The rule is (x,y) ⟶ (y,-x).

In other words, interchange x and y and make x negative.

[tex]\begin{array}{cc}\textbf{A"} & \textbf{A'} \\(1,5) & (5,-1) \\(-2,5) & (5,2) \\(-3,1) & (1,3) \\(0, 1) & (1,0) \\\end{array}[/tex]

These are the coordinates of P'Q'R'S'.

Figure 2 shows the reflection of A across the line x = -2 to give A" and its rotation to give A'.

Answer:

Reflection across x = -2; clockwise rotation of 90° about the origin

Step-by-step explanation:

Answer:

The cases are when a-b = 0 and when a = b

Step-by-step explanation:

An expression is termed as undefined (not to exist) if the denominator of the expression is zero. Given the expression a/a-b, the denominator of the expression is a-b. For the expression to be undefined, the expression at the denominator must be equal to zero i.e a-b = 0

If a - b = 0, then a = 0+b; a = b

Another case for the function not to exist is if a = b

Answer:

arithmetric

Step-by-step explanation:

the difference is so simple

Answer:

ARITHMETIC

Step-by-step explanation:

LA GEOMETRÍA ESTUDIA EL ESPACIO FÍSICO.

Answer:

B.)The volume of the triangular prism is not equal to the volume of the cylinder.

Step-by-step explanation:

Let A be the cross-sectional area of both congruent right triangular prism and right cylinder.

Since the prism has height 2 units, its volume V₁ = 2A.

Since the cylinder has height 6 units, its volume is V₂ = 6A

Dividing V₁/V₂ = 2A/6A =1/3

V₁ = V₂/3.

The volume of the prism is one-third the volume of the cylinder.

So, since the volume of the prism is neither double nor half of the volume of the cylinder nor is it equal to the volume of the cylinder, B is the correct answer.

So, the volume of the triangular prism is not equal to the volume of the cylinder.

Answer: The answer is 50980

Step by Step Explanation:

First, temporarily assume that two letters with I are different, call them i 1 and i 2. Three "a" are also called as a 1, a 2 and a 3, and two h as h 1 and h 2. Then there are 11 * 10 * 9 * 8 * 7 = 55440 possible "words" (one of 11 is the first letter, 10 is the second, and so on). But because equal letters do the same "words," some "words" were counted twice or more. We have to deduct the number of "parasitic" counts although it is fairly small. The words that counted more than once are divided into many disjoint sets: 1) with two I but without repetitions of a and h; 2) with two h but without repetitions of a and I 3) with two a but without repetitions of I and h; 4) with three a but without repetitions of I and h; 5) with two I and two a's; 6) two i's and tree a's; 7) two i's and two h's 8) two h's and two a's; 9) two h's and one tree. The first category includes terms counted twice and its scale is (5 * 4) * (6 * 5 * 4) = 2400 (the first I stays at one of the 5 positions, the second at one of the 4, then 11-2i-1h-2a=6). So we have 2400/2 = 1200 to subtract. Group 2 gives -600 as well, and group 3 also. Group 4 gives * (6 * 5) = 1800 (5 * 4 * 3), and the terms are counted 6 times, -300. Groups 5, 7 , 8: 5 * 4 * 3 * 2 * 6 = 720 and counted four times, therefore -180. Group 6 and 9: 5 * 4 * 3 * 2 * 1 = 120, with 12 counts, -10. Altogether -(1200 * 3 + 300 + 180 * 3 + 10 * 2) = -4460.The answer will be 55440-4460 = 50980.

The number of permutations which are possible with the five letters of HAWAIIAN is 1488.

It is the number of times a word can be arranged in a defined order. to calculate the number of permutations we often use nPr formula which states n!/(n-r)!

We are total 12 letters in the word hawaiian and letters in the alphabet for which permutations need to be calculated are 5. So the number of permutations are:

12P1+12P3+12P2+12P1+12P1

=12!/11!+12!/9!+12!/10!+12!/11!+12!/11!

=3*12*11!/11!+12*11*10*9!/9!+12*11*10!/10!

=36+1320+132

=1488

Hence the number of permutations in the word hawaiian for the 5 letters is 1488.

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Answer:

∠I ≅ ∠F

Step-by-step explanation:

Since, F is common vertex in the sides GF and FE of triangle FGE and I is common vertex in the sides IJ and IH of triangle IJH.

Hence, ∠I ≅ ∠F will be the required information to prove that △FGE ~ △IJH by the SAS similarity theorem.

The other information needed to prove that △FGE ~ △IJH by the SAS similarity theorem will be  ∠I ≅ ∠F

The ratio of similar sides of similar triangles are equal.

According to the given question, the angle F serves as a common vertex with the sides GF and FE of triangle FGE and also I serve as the common vertex with the sides IJ and IH of triangle IJH.

The other information needed to prove that △FGE ~ △IJH by the SAS similarity theorem will be  ∠I ≅ ∠F

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Answer:

It's  the first choice - causal, positive correlation.

Step-by-step explanation:

The further you run the more calories you will burn so there is a positive correlation here.

The relationship between distance run and calories burned is generally expected to be causal and positive, but it may be influenced by various individual and contextual factors.

Here, we have,

The relationship between distance run and calories burned is expected to exhibit a causal - positive correlation. This means that as the distance run increases, the calories burned are also expected to increase. The more someone runs, the more energy they expend, leading to a higher calorie burn.

However, it's important to note that while this relationship is expected to be causal and positive, there can be individual variations. Factors such as an individual's weight, metabolism, running efficiency, and other physiological factors can influence the calorie burn. Additionally, other factors such as running speed, terrain, and intensity of the run can also affect the relationship.

In summary, the relationship between distance run and calories burned is generally expected to be causal and positive, but it may be influenced by various individual and contextual factors.

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Answer:

t ≤ 4.24

Step-by-step explanation:

P(t) ≥ 40000 implies

500t/(2t²+9) ≥ 40000

Multiplying through by t², we have

500t ≥ 40000(2t²+9)

500t/40000 ≥ 2t²+9

Collecting like terms

0.0125t  ≥ 2t²+9

0  ≥ 2t²+ 9 - 0.0125t

2t²+ 9 - 0.0125t  ≤ 0

2t²- 0.0125t + 9 ≤ 0

Using the quadratic formula,

[tex]t = \frac{-(-0.0125) +/-\sqrt{(-.0125)^{2} - 4 X 2 X 9} }{2 X 2} \\= \frac{0.0125 +/-\sqrt{(0.00015625 - 288} }{4}\\= \frac{0.0125 +/-\sqrt{-287.9998} }{4}\\= \frac{0.0125 +/-16.97i }{4}\\=0.00313 + 4.24i or 0.00313 - 4.24i[/tex]

The factors of the equation are (t - 0.00313 -4.24i) and (t - 0.00313 + 4.24i)

So, (t - 0.00313 -4.24i)(t - 0.00313 + 4.24i) ≤ 0

(t - 0.00313)² - 4.24² ≤ 0

(t - 0.00313)² ≤ 4.24²

taking square-root of both sides,

√(t - 0.00313)² ≤ √4.24²  

t - 0.00313 ≤ 4.24

t ≤ 4.24 + 0.00313

t ≤ 4.24313 ≅ 4.24

t ≤ 4.24

Answer:

Grocery Giant has the better price for the pineapple.

Step-by-step explanation:

Superway Store

3 cans of pineapple is 2.25

Grocery Giant

6 cans of pineapple is 4.80

Superway Store 6 cans is 2.25 + 2.25 = 4.50

Which means that Superway Store is cheaper by 30 cents

answer x>1/2 (sqrt(21) - 3)

x>0.791288

Answer:

B.

Step-by-step explanation:

1) The parabola 1 unit up, so it should be +1. A or B.

2) The parabola is opening up, so it will have positive coefficient. 0.2. This is B.

Answer:

the second choice

Step-by-step explanation:

if <A is equal to <e then <d and <b are equal becuase the angles dont change when you change the lengths of the lines

Answer:

2nd choice

Step-By-Step Explanation:

Answer:

look below

Step-by-step explanation:

y = 2 (x + 3)^2 - 2

Geometric figure:  parabola

Alternate forms:

y = 2 (x + 2) (x + 4)

y = 2 (x^2 + 6 x + 8)

-2 x^2 - 12 x + y - 16 = 0

Expanded form:

y = 2 x^2 + 12 x + 16

Roots:

x = -4

x = -2

Properties as a real function:

Domain - R (all real numbers)

Range - {y element R : y>=-2}

Partial derivatives:

d/dx(2 (x + 3)^2 - 2) = 4 (x + 3)

d/dy(2 (x + 3)^2 - 2) = 0

Implicit derivatives:

(dx(y))/(dy) = 1/(12 + 4 x)

(dy(x))/(dx) = 4 (3 + x)

Global minimum:

min{2 (x + 3)^2 - 2} = -2 at x = -3

Answer:

hi

Step-by-step explanation:

Answer:

44 units

Step-by-step explanation:

When you perform a dilation on a figure, all of the side lengths of the figure get multiplied by the scale factor. This means that the perimeter is also multiplied by that scale factor. Since in this case that scale factor is 2, the new perimeter is 22*2=44 units. Hope this helps!

Answer:

44 units.

Step-by-step explanation:

Dilation is the transformation of an image's size by a scale factor.

The scale factor is given 2.

The rectangle has a perimeter of 22.

22 × 2 = 44

The perimeter for the resulting image is doubled by the scale factor of 2.

Answer:

a

Step-by-step explanation:

  

The only part of the expression representing f(t) involving the variable t is the exponential e−0.08t. Since the coefficient of t in the exponent, −0.08, is negative, the values of f(t) decrease as time passes. Thus the temperature of the coffee decreases as time elapses. This is appropriate as we know from experience that over time the coffee will cool down to room temperature: In this case, the 75 in the expression representing f(t) is the ambient room temperature in degrees Fahrenheit.

The beginning of the experiment is when the time variable t takes the value zero: Since

f(0)=110e−0.08⋅0+75=110+75=185,

the initial temperature of the coffee is 185 degrees Fahrenheit, a little less than the boiling temperature of water.

To find when the coffee is 140 degrees we want to solve

f(t)=110e−0.08t+75=140.

Subtracting 75 from both sides and then dividing both sides by 110 gives

e−0.08t=65110.

By the definition of the natural logarithm, this gives

−0.08t=ln(65110).

Dividing both sides by −0.08 gives a value of about 6.6 minutes for the coffee to cool to 140 degrees.

The same reasoning gives, as an expression for the time when the coffee has cooled to 100 degrees,

ln(25110)−0.08.

This is about 18.5 minutes. sorry if i forgot to put "/" for fractions

Answer: C

Step-by-step explanation:

Since we are given velocity, which is the first derivative, we have to fidn the antiderivative of velocity to get position.

∫-2sint dt

s(t)=2cos(t)+C

Since we are given s(0)=0, we can plug in the values to find C, constant.

0=2cos(0)+C

0=2(1)+C

0=2+C

C=-2

Now that we know our constant, we can find out position.

s(t)=2cos(t)-2

Answer:

Sorry this is not an answer but it wouldn't let me comment go you friend me or something so we can work on calculus together

Step-by-step explanation:

Answer:

x2+5x/2 -4

Step-by-step explanation:

f(x) = 2x+3 and g(x) = x^(2)+(x)/(2) - 7 , what is  (f+g)(x)

x^2+5x/2-4