URGENT HELP!! Giving Brainliest.

Can someone help me with these 4? Thank you

Answer:

Step-by-step explanation:

cylinder's height=3×(diameter of sphere)=3×6=18 cm

radius of cylinder=3 cm

volume of cylinder=π r²h=π(3)²×18=162 π cm³

volume of sphere=4/3 π(3)³=36 π cm³

reqd. empty space=162 π-3×36π=54 πcm³

Step-by-step explanation:

hope it helps.

The bias in the report is that households without a vehicle were not surveyed.

• A bias in a statistical research may be occur when the sample used is not entirely representative of the population. The research carried out above was to evaluate the number of households with more Than one car, the sampling frame should not only include the households with cars but the entire household in the town.

• The fact that the random sample were Drivers at the gas station, exempts those households without cars because those without cars cannot drive to a gas station.

• The sample is sufficiently large.

The scenario also states that, the samples were chosen randomly.

Hence, the bias is that household without cars were exempted from the survey.

Learn more : https://brainly.com/question/24393604

Answer:

1. x = -45

2. 1 +- squareroot 17 over 2

Step-by-step explanation:

note* ^ plus minus

Answer:

first option 7.331 × 10^6

Answer:

7.331×10E6

( E means the exponent just letting u know :)

Answer:

He stayed for 99 days

Step-by-step explanation:

55% of 180 is 99

Answer:

‍♀️‍‍‍‍‍⚕️‍⚕️☺☺

Answer:

Multiplication rule of exponents says [tex](xy)^n = x^n * y^n[/tex] hence, 2^4 • 3^4 =6^4

Step-by-step explanation:

As per the rule of exponents,

[tex](xy)^n = x^n * y^n[/tex]

If we go by the above equation, we can deduce that x is 2 and y is 3

Thus, 2^4 *3^4 can be written as [tex](2*3)^4 = 6^4[/tex]

Hence,  2^4 • 3^4 =6^4

Answer:

it is a 1

Step-by-step explanation:

Answer:

10/3

Step-by-step explanation:

The answer would be 10/3. Please mark brainliest!

Answer:

10

Step-by-step explanation:

The missing number is 10

Answer:

1. Juan necesita 0,0051 hl en total.

2. Juan no tendrá suficiente con una lata de medio litro.

Step-by-step explanation:

1. Para calcular el volumen total en hl, primero debemos convertir todas las unidades a hl.

Para el coche verde:

[tex] V_{1} = 3 dl*\frac{1 hl}{1000 dl} = 0,003 hl [/tex]

[tex] V_{2} = 75 ml*\frac{1 hl}{100000 ml} = 0,00075 hl [/tex]    

Para el coche azul:    

[tex] V_{3} = 13 cl*\frac{1 hl}{10000 cl} = 0,0013 hl [/tex]

[tex] V_{4} = 5 ml*\frac{1 hl}{100000 dl} = 0,00005 hl [/tex]    

Ahora, para encontrar el volumen total debemos sumar todos los volúmenes anteriores:

[tex] V_{T} = V_{1} + V_{2} + V_{3} + V_{4} = 0,003 hl + 0,00075 hl + 0,0013 hl + 0,00005 hl = 0,0051 hl [/tex]

Por lo tanto, Juan necesita 0,0051 hl en total.

2. Luego, para saber si tendrá suficiente con una lata de medio litro, debemos convertir el volumen total de hl a l:

[tex] V_{T} = 0,0051 hl*\frac{100 l}{1 hl} = 0,51 l [/tex]

Entonces, dado que el volumen total es 0,51 litros Juan no tendrá suficiente con una lata de medio litro porque necesita cubrir 0,01 litros más.  

Espero que te sea de utilidad!

Answer:$33.41

Step-by-step explanation:

I converted the percentages to decimals and subtracted them from 1.

(Btw x stands for the cost before tip and tax)

This was the equation I came up with based on what was given to me;

57.29 = (1-0.085)x + (1-0.2)x

57.29=0.915x + 0.8x

57.29=1.715x

Divide both sides by 1.715 and should get 33.40524781

Since we are rounding to the nearest cent, the answer would be $33.41

Answer:

Triangles ABC and DEF are similar. Explain wh

Step-by-step explanation:

They are the same shape it's just one is smaller one is bigger

Answer:

C, the binder and the stapler do because 9+5=14

Step-by-step explanation:

Answer:

The binder and the stapler do

Pls mark Brainliest :)

Step-by-step explanation:

Use the Pythagorean theorem to calculate the distance from the wall the ladder originally is:

x = sqrt(30^2 - 24^2)

x = sqrt(900-576)

x = sqrt(324)

x = 18

The ladder was originally 18 feet from the wall. Moving the ladder 3 feet further away makes the new distance 18 + 3 = 21 feet.

Now use the Pythagorean theorem again to find the new height of the ladder.

Height = sqrt(30^2 - 21^2)

Height = sqrt(900 - 441)

Height = sqrt(459)

Height = 21.42

Rounded to the nearest tenth = 21.4 feet.

Answer:89

Step-by-step explanation:

23+9

Answer:

Yes

Step-by-step explanation:

12²=144

16²=256

20²=400

Since 144+256=400, 12, 16, and 20 can form a right triangle

By using Pythagoras theorem AB^2+BC^2=CA^2

12^2+16^2=20^2

144+ 256=200

yes 12in, 16in and 20in forms a triangle

Answer:

the answer is

x-2=48

r-8= -12

Answer:

irrational

Step-by-step explanation:

Answer:

[0, infinity

Step-by-step explanation:

It's essential to type "sqrt(x)" or "√x," which are vastly different from the linear function y = x + 1.

The domain of the square root function is [0, infinity).

Adding 1 to this merely shifts the entire graph up 1 unit.

So the domain of y = √x + 1 is the same as before:    [0, infinity

Answer:

B, the second graph

Step-by-step explanation:

The function on a graph has to pass through the points (0, 4) and (2, 1), that's the one you should pick

By analyzing the given exponential function, we will see that the correct option is the third one.

The function is:

f(x) = 2*(1/2)^x

So, we have a value smaller than 1 and larger than zero with the exponent x. This means that for really small values of x, the outcome will be very large, while for large values of x, the outcome will tend to zero. So this is an exponential decay.

When evaluated in zero we have:

f(0) = 2*(1/2)^0 = 2

So it crosses through the point (0, 2).

And when evaluated in x = 1, we have:

f(1) = 2*(1/2)^1 = 1

Then it also passes through (1, 1).

Then the correct option is the third one:

"On a coordinate plane, an exponential decay function decreases from quadrant 2 into quadrant 1 and approaches y = 0. It crosses the y-axis at (0, 2) and goes through (1, 1)."

If you want to learn more about exponential functions, you can read:

https://brainly.com/question/11464095

Answer:

-4

Step-by-step explanation:

If the discriminant is negative there can be no real number solution because the square root of a negative number does not exist (in real numbers).

In the Quadratic Formula, if  [tex]b^2-4ac[/tex]  is negative, then you can't find  [tex]\sqrt{b^2-4ac}[/tex].

Answer:

neither

Step-by-step explanation:

it is neither because there is not a consistent pattern for linear, and there is not a consistent ratio so it also cannot be exponential

Answer:

-2.1 to -2.4( my guess would be .3)

Step-by-step explanation:

the middle line refers to.5 so the dot since its not indicated could be referred to as-2.3

Answer:

5

Step-by-step explanation:

............................

Answer:

5 is the answer to your question

a. You need to think which numerator is bigger

b. 4

c. 5

d. <

e. less than

f. greater than

Answer:

18.43 is the correct answer when rounded to the hundreds place. when roumded to the tenths it is 18.4

Answer:

s(2) = √7

Step-by-step explanation:

s(2) = √(3[2] + 1) = √7

Answer:

Hello! Your answer would be BELOW

Step-by-step explanation:

A)

D)

Hope I helped! Ask me anything if you have questions! Brainiest plz. Hope You make a 100%! Have a nice day! -Amelia♥