answer this question please :)

Answer:

value of (b) will be: 9

Step-by-step explanation:

Answer:

b = 9

Step-by-step explanation:

(-3x² + 5x - 2) - 2(x² - 2x - 1) =

= -3x² + 5x - 2 - 2x² + 4x + 2

= -5x² + 9x

= ax² + bx + c

a = -5; b = 9; c = 0

Answer: b = 9

Answer:

Step-by-step explanation:

Nope Because it is so-pose to be 200

Answer:

500

Step-by-step explanation:

i already did it.

Answer:

scam :(((

Step-by-step explanation:

Answer: The answer is A

Step-by-step explanation: 0.40 times 1000 is 400 and 40 percent of 1000 is 400

Answer:

5,9

Step-by-step explanation:

I think row A would be 5 and B would be 9 im sorry if im wrong

Answer:

$18.5685 or $18.56

Step-by-step explanation:

The answer is $18.56 because 123.79 multiplied by 15% is $18.56

Answer:

about $18.75

Step-by-step explanation:

15% of 123.79 is 18.5685

Answer:

1.6 liters of lemonade

Step-by-step explanation:

There are 1000 milliliters in one liter so she made 8000 milliliters of lemonade

Next we have to figure out how many milliliters of lemonade she sold each day:

Saturday: 200 milliliters of lemonade in a glass * 8 glasses = 1600 milliliters of lemonade sold

Sunday:  200 milliliters of lemonade in a glass * 24 glasses = 4800 milliliters of lemonade sold

1600  + 4800 = 6400 total milliliters of lemonade sold

Since there are 1000 milliliters in one liter, we have to divide 6400 by 1000:

6400 ÷ 1000 = 6.4 liters

Lastly, we have to subtract 6.4 from 8:

8 - 6.4 = 1.6 liters of lemonade

Hope this helps!

Answer:

the answer is 6 because when x=7 on the line it is also equal to 6 on the y axis

Answer:

x=136

Step-by-step explanation:

So lets say x is the number of pencils so, the number of erasers = 544-x

The equation is then 3x = 544-x  & x=136

Answer: 136 adult tickets

Step-by-step explanation: If you have 136 adult tickets then you have to multiply that by three in order to get the child tickets. 136 x 3 = 408 and 408 + 136 = 54

Answer:

6

Step-by-step explanation:

-3 -1 +2 +8 = -4+10 = 6

Answer:

8

Step-by-step explanation:

The area of a circle is \(\pi\)r²

So we can divide 64\(\pi\) by \(\pi\) and have 64.

Now take the square root of 64 and its 8

Answer:

the is 16 pie

Step-by-step explanation:

To find the circumference, we would use the formula:

\color{green}{C}=

C=

\,\,2\pi\color{red}{r}

2πr

Circumference of a Circle formula

But we don't know the radius yet. We do know the area, so we can use the area formula to find the radius:

\color{purple}{A}=

A=

\,\,\pi \color{red}{r}^{2}

πr

2

Area of a Circle formula

\color{purple}{64\pi}=

64π=

\,\,\pi \cdot \color{red}{r}^{2}

π⋅r

2

Substitute given circumference into formula

\frac{\color{purple}{64\cdot \pi}}{ \pi}=

π

64⋅π

​

=

\,\,\frac{\pi \cdot \color{red}{r}^{2}}{\pi}

π

π⋅r

2

​

Since \piπ is on both sides, divide both sides by \piπ

64=

64=

\,\,\color{red}{r}^{2}

r

2

Cancel out the \piπs from the top and bottom of each fraction.

\color{red}{r}=

r=

\,\,8

8

Squared means something times itself. What times itself equals 64?

\text{The \color{red}{radius} of the circle is \color{red}{8} feet.}

The radius of the circle is 8 feet.

\text{Now use the radius to find the circumference:}

Now use the radius to find the circumference:

\color{green}{C}=

C=

\,\,2\pi\color{red}{r}

2πr

Circumference of a Circle formula

\color{green}{C}=

C=

\,\,2 \cdot \pi \cdot\color{red}{8}

2⋅π⋅8

Substitute radius into formula

\color{green}{C}=

C=

\,\,2 \cdot\color{red}{8}\cdot \pi

2⋅8⋅π

Commutative property of multiplication

\color{green}{C}=

C=

\,\,16\pi

16π

Final answer in terms of \piπ

\text{The \color{green}{circumference} of the circle is 16\(\pi\) ft.}

The circumference of the circle is 16π ft.

Answer:

3x=9y

Step-by-step explanation:

X are the pedals, and the pedals pedal 3 times, so its 3x

Y are the wheels and the wheels rotate 9 times so its 9x

Whenever the pedals pedal 3 times the wheels rotate 9 times making them equal to each other

nevermidn its wrong

Answer:

y=3x

Step-by-step explanation:

The ratio here is 9/3=3 which means we can for the equation as

y=3x

where x is the number of pedals and y is the number of times the wheel has rotated

Answer:

166.5

Step-by-step explanation:

you have to kinda create it out on paper flat and just add all.

Good luck, i am blonde so maybe

Answer:

not the at most sign

Step-by-step explanation:

\( \qquad \qquad\large\rm{Together \: We \: Go \: Far!} \\ \qquad \qquad \sf \small{\red{♡}\:Swifties\:\red{♡}}\)

Question :-

Answer :-

\( \rule{180pt}{3pt}\)

Diagram :-

\(\setlength{\unitlength}{1mm}\begin{picture}(5,5)\thicklines\multiput(-0.5,-1)(26,0){2}{\line(0,1){40}}\multiput(12.5,-1)(0,3.2){13}{\line(0,1){1.6}}\multiput(12.5,-1)(0,40){2}{\multiput(0,0)(2,0){7}{\line(1,0){1}}}\multiput(0,0)(0,40){2}{\qbezier(1,0)(12,3)(24,0)\qbezier(1,0)(-2,-1)(1,-2)\qbezier(24,0)(27,-1)(24,-2)\qbezier(1,-2)(12,-5)(24,-2)}\multiput(18,2)(0,32){2}{\sf{4.9 \: ft}}\put(9,17.5){\sf{7.8 \: ft}}\end{picture}\)

Solution :-

As per the provided information in the given question, we have been given that the radius of the cylinder is 4.9 ft. The height of the cylinder is 7.8 ft. We have been asked to find or calculate the surface area of the cylinder.

To calculate the surface area of the cylinder, we will use the formula below :-

\(\bigstar \:\:\:\boxed{\sf{\:\:Surface \: Area_{(Cylinder)} = 2\pi r^2 + 2\pi rh \:\:}}\)

Substitute the given values into the above formula and solve for surface area:

\(\sf:\implies Surface \: Area_{(Cylinder)} = 2\pi r^2 + 2\pi rh\)

\(\sf:\implies Surface \: Area_{(Cylinder)} = (2)(3.14)(4.9 \: ft)^2 + (2)(3.14)(4.9\: ft)(7.8\:ft) \)

\(\sf:\implies Surface \: Area_{(Cylinder)} = (2)(3.14)(24.01\: ft^2) + (2)(3.14)(38.22\:ft^2) \)

\(\sf:\implies Surface \: Area_{(Cylinder)} = (2)(75.3914 \: ft^2) + (2)(120.0108 \: ft^2) \)

\(\sf:\implies Surface \: Area_{(Cylinder)} = 150.7828 \: ft^2 + 240.0216 \: ft^2 \)

\(\sf:\implies \bf{Surface \: Area_{(Cylinder)} = 390.8044 \: ft^2}\)

Therefore :-

\(\\\)

Learn more about the surface area of the cylinder at https://brainly.com/question/30914875

Have a great day! <33

Answer:

1. Determine the Mission Objective. A mission objective has to be clear, measurable, and believable.

2. Identify the Threats. ...

3. Identify Your Available Resources. ...

4. Evaluate the Lessons Learned. ...

5. Determine Courses of Action/Tactics. ...

6. Plan for Contingencies.

Answer: First blank is 15 then 28 then 25 in the last blank.

Step-by-step explanation:

On the left side column it is going up by 5 and the right column is going up by 7.

Answer:

49.9

Step-by-step explanation:

because it's a simple question it should be the 3rd one you pir

Answer:

Step-by-step explanation:

I think its the third one

Answer:10

Step-by-step explanation: this is a middle school question? lool

Answer: d=3h

Step-by-step explanation: because the slope is 3/1 or 3

Answer: Range and mean = 8 of both

variance of Set X= 4.7

variance of Set Y= 4.6

Step-by-step explanation:

Two sets of data, set X and set Y are given

a.) Range is the difference of the highest value and the lowest value,

Therefore, Range of set X = 12-4=8

Range of set Y = 12-4=8

Now, Mean of a given data set is the average of all the terms present in the given data set

Mean of set X= Σxif/n = (4+5+6+7+16+18+24)/10 = 8

Mean of set Y= (4+5+7+32+20+12)/10= 8

Therefore, both the data sets has same range and mean.

b.) Standard deviation tells about the variability of the date and is given by,

S.D= σ = √∑ ( X − μ )^2/n

S.D of set X= √(16+9+4+1+0+1+16)/10= √4.7

S.D of set Y= √(16+9+1+0+4+16)/10= √4.6

Variance is the square of S.D, that is, σ^2

Therefore, variance of set X=4.6

variance of set Y= 4.7

c.) The calculated variances of set X and set Y are 4.7 and 4.6 respectively. It implies that the data is more distributed or varied in set X than in set Y. In the other words, data in set Y is more consistent data than of set X.  

To learn more about S.D and variance,

https://brainly.com/question/15858152

https://brainly.com/question/12402189

Answer: Range and mean = 8 of both

variance of Set X= 4.7

variance of Set Y= 4.6

Step-by-step explanation:

We know

a.) Range is the difference of the highest value and the lowest value,

Therefore, Range of set X = 12-4=8

Range of set Y = 12-4=8

Now, Mean of a given data set is the average of all the terms present in the given data set

Mean of set X= Σxif/n = (4+5+6+7+16+18+24)/10 = 8

Mean of set Y= (4+5+7+32+20+12)/10= 8

also

b.) Standard deviation tells about the variability of the date and is given by,

S.D= σ = √∑ ( X − μ )^2/n

S.D of set X= √(16+9+4+1+0+1+16)/10= √4.7

S.D of set Y= √(16+9+1+0+4+16)/10= √4.6

Variance is the square of S.D, that is, σ^2

Therefore, variance of set X=4.6

variance of set Y= 4.7

c.) The calculated variances of set X and set Y are 4.7 and 4.6 respectively. It implies that the data is more distributed or varied in set X than in set Y. In the other words, data in set Y is more consistent data than of set X.

Answer:

4y^3 - 100y^5

= -100y^5 + 4y^3

= -4 (25y^2-1)

= - 4y ^ 3 (25y ^ 2 - 5y + 5y - 1)

= -4y^ 3 ( 5(5y^2-y) + 5y - 1)

= - 4y ^ 3 (5y (5y-1) +5y-1)

= -4y^ 3 ( 5y - 1 ) (5y + 1)

Answer: 4y^3(1+5y)(1-5y)

Step-by-step explanation:

Since both terms are perfect squares, factor using the difference of squares formula, a^2 − b^2 = ( a + b ) ( a − b ) where a = 1 and b = 5 y . 4 y^ 3 ( 1 + 5 y ) ( 1 − 5 y )