If you DIVIDE both sides of an inequality by a POSITIVE number, do you need to flip the direction of the inequality?

Answer:

rational

Step-by-step explanation:

the square root of 1 is 1 and it terminates

Answer:

10t³ - 95t + 45

Step-by-step explanation:

Solution : 10t³ - 95t + 45

Answer: -$1.10

Step-by-step explanation:

Expected value=(0)50/100+(7)30/100+(9)20/100= 3.90-5= -1.10

Answer:

just by looking at the graph you can see that the y int is one, so that eliminates two answers already. Then the slope is rise over run. (best thing to remember in math. rise over run) so pick two points. (0, 1) and (4,0) were the first ones i saw. to get from those two points you go from (0,1) over 4 (thats your run) and from there down 1 (thats your rise) to get to (0,4). You would then do rise over run (and because your rise goes down its negative) to get -1/4 as your slope. The answer is slope= -1/4, Y intercept = 1

Answer:what he said is true

Step-by-step explanation:

hope this helps

Answer:

y= -3/5x + 12/5

Step-by-step explanation:

Remember, the formula is y= mx + b

#1 So we're gonna put it into that order by subtracting 3x from both sides:

3x + 5y= 12

-3x           -3x

We are left with this:

5y= -3x + 12

#2 Now we will divide 5 to both sides to isolate the variable

5y/5= -3x/5 + 12/5

#3 Now that the variable is isolated we are left with the answer:

y= -3/5x +12/5

Hope this helps :)

Answer:

50/21 or 2 8/21

Step-by-step explanation:

Answer:

Following are the solution to this question:

Step-by-step explanation:

Given:

[tex]\ Mean = 0.54 \times 555 \\[/tex]

           [tex]= 299.7[/tex]

[tex]SD = 11.74[/tex]

In point a:

[tex]\to Z = \frac{(338 - 299.7)}{11.74}[/tex]

       [tex]= \frac{(38.3)}{11.74}\\\\= 3.26[/tex]

[tex]\to P = 0.000557\\\\\to \% = 0.06 \%[/tex]

In point b:

[tex]\to Z = \frac{(285 - 299.7)}{11.74}[/tex]

       [tex]= \frac{(-14.7)}{11.74}\\\\= -1.25\\[/tex]

[tex]\to P = 0.8944\\\\\to \% = 89.44 \%[/tex]

In point c:

[tex]\to 48\% \times 555 = 266.4\\\\\to Z = \frac{(266.4 - 299.7)}{11.74}\\\\[/tex]

       [tex]= \frac{(-33.3)}{11.74}\\\\= -2.83[/tex]

[tex]\to P = 0.002256\\\\\to \% = 0.23 \%[/tex]

Answer:

Tom

Step-by-step explanation:

Rob dug  2.8 feet, so he is the closest to being finished.

Digging is the process of removing material from a solid surface, typically soil or sand on the surface of the Earth, using an object like claws, hands, or tools. Digging is actually the combination of two processes: first, the surface is broken or cut, and second, the material that is present is removed and moved. This can be done in a single motion in a straightforward digging situation by breaking the surface with the digging instrument and instantly tossing the debris away from the hole or other structure being dug. Many different species of animals dig, either as a part of their burrowing behavior or to look for food or water below the surface of the ground.

According to the question,

The hole need to be at least 3 feet.

Rob dug 14/5 feet, which is 2.8 feet.

Sam dug 2.6 feet and,

Tom dug 2.1 feet.

Hence, Rob is the closest to being finished.

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Answer:

-10 :)

Hey champ! Here's the 'splination!

equation: 50-5x=100

50=-5x. (subtract 50 from both sides)

-10=x (divide both sides by -5)

Answer:

1) d

2) 97.5 miles

3)I am unsure on

Step-by-step explanation:

1) d=65t means that it is moving 65 miles per that amount of time (in this case using mph)

2) you take your equation "d=65t" and fill in your time (1.5) 65(1.5)=97.5

3) I don't know but possibly 2.5 minutes? (65/25) but I'm not sure I'm sorry

Answer:

Step-by-step explanation:

add the two together to get your answer of 64,826. the reason why you would is because the marina trench is represented as 35,797 with sea level being 0. so to find the difference you would do 29,029-(-35,797), or just add the two together

Answer:

100,623

Step-by-step explanation:

Answer:

I think the answer is A. I hope that is right

6×8= 48

4×12=48

Answer:  [tex]b^2[/tex]

You can write this as b^2

===================================================

Work Shown:

[tex]c = \frac{(ab^5)^{1/2}}{(ab)^{1/2}}\\\\c = \left(\frac{ab^5}{ab}\right)^{1/2}\\\\c = \left(b^4\right)^{1/2}\\\\c = b^{4*1/2}\\\\c = b^{2}\\\\[/tex]

Answer:

100

Step-by-step explanation:

5% of 2000 is 100

Answer:

36%

Step-by-step explanation:

14+9+2=25

and the questions wants to know how many were wearing shorts

soooooooooooooo

divide 9 by 25 and that is 0.36 which would be 36% out the 25 wearing shorts

Answer:

The standard error of the mean is 0.02

Step-by-step explanation:

Here, we want to calculate the standard error of the mean.

Mathematically;

standard error of mean = SD/ √n

where SD is the standard deviation and n is the number of samples

From the question, SD = 0.22 and n = 121

Inserting this into the equation

Standard error of the mean = 0.22/√121

= 0.22/11 = 0.02

The probability of obtaining a sample mean is "0.9545".

According to the question,

Mean,

[tex]\mu = 4[/tex]

Standard deviation,

[tex]\sigma = 0.22[/tex]

Random sample,

[tex]n = 121[/tex]

By Central limit theorem,

→ [tex]\bar {x} \sim (4, \frac{0.22}{\sqrt{121} } )[/tex]

     [tex]= 0.2[/tex]

Now,

→ [tex]P(|\bar{x} - \mu| \ \alpha \ 0.04) = P(-0.04 \ \alpha \ \bar{x} - \mu \ \alpha \ 0.04)[/tex]

                               [tex]= P(\frac{-0.04}{0.02} \ \alpha \ z \ \alpha \ \frac{0.04}{0.02} )[/tex]

                               [tex]= P(-2 \ \alpha \ z \ \alpha \ 2)[/tex]

                               [tex]= 0.9545[/tex]

Thus the above response i.e., "option a" is appropriate.

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> Angle BEA and Angle CED are vertical angles and equal 104°.

> Angle ABE and Angle CBE are complementary angles.

> Angle BEA and Angle AED are supplementary angles whose sum is 180°.

The correct relationships between the angles of the given rectangle are Angle BEA and Angle CED are vertical angles and equal 104°,

Angle ABE and Angle CBE are complementary angles,

Angle BEA and Angle AED are supplementary angles whose sum is 180°.

A parallelogram with all angles right angle and congruent diagonal is called a rectangle.

Given that, a rectangle ABCD, whose diagonals intersecting at E,

The relationships will be :-

Angle BEA and Angle CED are vertical angles and equal 104°,

Angle ABE and Angle CBE are complementary angles, because the measure of angle B is 90°, therefore, sum of Angle ABE and Angle CBE is  90° and hence, complementary

Angle BEC and Angle CED are vertical angles, this is not a correct relation because both the angles are adjacent.

Angle BEA and Angle AED are supplementary angles whose sum is 180°, this is because, the angles are forming a linear pair.

Angle BEC and Angle AED are adjacent angles, this is not a correct relation because both the angles are vertical angles.

Hence, The correct relationships between the angles of the given rectangle are Angle BEA and Angle CED are vertical angles and equal 104°,

Angle ABE and Angle CBE are complementary angles,

Angle BEA and Angle AED are supplementary angles whose sum is 180°.

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Answer:

4:6, 12:18

Step-by-step explanation:

i think this is correct

Answer:

$1.12

Step-by-step explanation:

Divide.

8.99 / 8 = 1.12375

Round to the nearest cent if necessary.

1.12375 → 1.12

Best of Luck!

Answer:

[tex]-11\sqrt5 - 11\sqrt6[/tex]

Step-by-step explanation:

Hello!

To rationalize the denominator, we have to remove any root operations.

To do that, we can multiply the numerator and denominator by the conjugate of the denominator. A conjugate is simply the same terms but with opposite operations.

The answer is [tex]-11\sqrt5 - 11\sqrt6[/tex].

Answer:

The answer is 3 to the power of 2= 9

Step-by-step explanation:

Answer:

2x+110°=180°

2x=70°

X=35°

Can I also have brainliest

Answer:

2

Step-by-step explanation:

becaue i siad so

Answer:

y = -2x - 3

Step-by-step explanation:

2x + y = 3

y = -2x + 3

Parallel slope --> m = -2

y = mx + b

-5 = -2(1) + b

-5 = -2 + b

-3 = b

y = -2x - 3

Hope this helps!

The correct format of the options are

(1) 6/8                    (6) 2/7

(2) 7/2                    (7) 1/8  

(3) 33[tex]\frac{4}{5}[/tex]                    (8) 4/5

(4) 41                      (9) 5/6

(5) 54[tex]\frac{1}{5}[/tex]                    (10) 1/5

Answer:

Reciprocal are those number which when multiplied by the original number gives 1 as the result. eg [tex]\frac{6}{8}[/tex] reciprocal is [tex]\frac{8}{6}[/tex], on multiplication [tex]\frac{6}{8}[/tex]*[tex]\frac{8}{6}[/tex] =1

Reciprocal of the following are as follows

(1) [tex]\frac{8}{6}[/tex]  

(2) [tex]\frac{2}{7}[/tex]

(3) 33[tex]\frac{4}{5}[/tex]  =[tex]\frac{ 33*5 + 4}{5}[/tex] = 169/5 =>  reciprocal = 5/169

(4) 1/41

(5)  54[tex]\frac{1}{5}[/tex] => [tex]\frac{54*5 +1}{5}[/tex] = 271/5 => 5/271

(6) 7/2

(7) 8

(8) 5/4

(9) 6/5

(10) 5

Answer:

1.857 minutes

Step-by-step explanation:

From the given information:

Consider the amount of salt present in the tank as x(t) at a given time (t); &

The volume of the solution = V(t)

At t = 0 i.e. (at initial conditions)  x(0) = 30; and V(0) = 50

However, the overall increase taken place for 1 gallon per minute is:

V(t) = 50 + t

The amount of salt x(t) at any given point for time (t) is;

[tex]\dfrac{x(t)}{V(t)}= \dfrac{x(t)}{50+t}[/tex]

After 5 gallons of solution exit per minute; the concentration of the salt solution changes at:

[tex]\dfrac{dx(t)}{dt}= -\dfrac{5x(t)}{50+t}[/tex]

Taking the integral of what we have above, we get:

In x(t) = - 5 In(t + 50) + In (C)

In x(t) = In (t+ 50)⁻⁵ + In (C)

In x(t) = In C ( t + 50)⁻⁵

x(t) = C(t + 50)⁻⁵      (General solution)

To estimate the required solution; we apply the initial conditions x(0) = 30;

Thus;

x(0) = C(50)⁻⁵ = 30

⇒ C = 30 × 50⁵

Hence; x(t) =  30 × 50⁵ × (t + 50)⁻⁵

The above expression can be re-written as:

[tex]x(t) = 25 \implies 30 \times \bigg ( \dfrac{50}{t+50} \bigg ) ^5= 25[/tex]

i.e.

[tex]\bigg ( \dfrac{50}{t+50} \bigg ) ^5= \dfrac{25}{30}[/tex]

[tex]\dfrac{50}{t+50}= \bigg ( \dfrac{25}{30}\bigg) ^{\dfrac{1}{5}}[/tex]

[tex]\dfrac{50}{t+50}= 0.964192504[/tex]

[tex]{50}= 0.964192504(t+50)[/tex]

50 = 0.964192504t + 48.2096252

50 - 48.2096252 = 0.964192504t

1.7903748 =  0.964192504t

t = 1.7903748 / 0.964192504

t ≅ 1.857 minutes

We can thereby conclude that the estimated time it will require until there are 25 pounds of salt in the tank is 1.857 minutes.