Which inequality is true? A. |-15| > |-19| B. |-16| < |13| C. |-15| > |12| D. |12| < |-8| E. |-19| > |-20|

Answer:

a. 4

b. 1

c. 3

d. 24

Step-by-step explanation:

a. 72 ÷ 9 ÷ 2

= (72÷9)÷2    

= 8÷2

= 4

b. (18 ÷ 6) ÷ 3

  = 3÷3

  = 1

c. 45 ÷ 5 ÷ 3

  = (45÷5)÷3

 = 9÷3

=3

d. 144 ÷ (12 ÷ 2)

 = 144÷6

 = 24

Use distributive property a(b + c) = ab + ac.

[tex]2x(y^2+3)-5(3+y^2)=(2x)(y^2)+(2x)(3)+(-5)(3)+(-5)(y^2)\\\\=2xy^2+6x-15-5y^2[/tex]

Answer:

22.5

Step-by-step explanation:

To find the rate of speed per hour, you need to divide the kilometer (90) by the hours (4).

90/4=

22.5

The submarine's rate of speed is found by dividing the distance traveled (90 kilometers) by the travel time (4 hours), resulting in a rate of 22.5 kilometers per hour.

You need to use the formula for speed which is speed = distance ÷ time. In this case, the submarine travels 90 kilometers in 4 hours.

To calculate the rate of speed, divide the distance by the time:

Speed = 90 kilometers ÷ 4 hours = 22.5 kilometers per hour.

This means the submarine's rate of speed is 22.5 kilometers per hour.

Answer:

Midpoint ( -3, 10)

Step-by-step explanation:

To find the midpoint , we use the formula

midpoint = (x1+x2)/2, (y1+y2)/2

Substituting what we know

             = (5+-11)/2, (18+2)/2

             = (-6/2), (20/2)

             =-3,10

Answer:

The man earned money:

Step-by-step explanation:

$1 x 24 pieces =$24 revenue per box

$24 - $9 = $15 earning per box

$15 x 8 boxes = $120 total earnings

Answer:

55

Step-by-step explanation:

70+50=125

180-125=55

Answer:

3y

Step-by-step explanation:

Simplifying

13x + -39y = 0

Solving

13x + -39y = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '39y' to each side of the equation.

13x + -39y + 39y = 0 + 39y

Combine like terms: -39y + 39y = 0

13x + 0 = 0 + 39y

13x = 0 + 39y

Remove the zero:

13x = 39y

Divide each side by '13'.

x = 3y

Simplifying

x = 3y

Answer:

The 14th term is -58

Step-by-step explanation:

The formula for an arithmetic sequence is

an = a1+d(n-1)

where a1 is the first term

d is the common difference and

n is the term number

a1 = 7

d = 2-7 = -5

Check -3-2 = -5   so d = -5

an = 7 -5(n-1)

We want the 14th term

a14 = 7 -5(14-1)

a14 = 7 -5(13)

a14 = 7 -65

a14 = -58

Answer:

P(1 and 2 are green) = 3/25

Step-by-step explanation:

We need to know the total number of marbles

6 Blue + 10 red + 9 green = 25 marbles

P ( 1st marble is green) = green/ total

                                       = 9/25

Since we don't put it back, there are  

6 Blue + 10 red + 8 green = 24 marbles

P ( 2st marble is green) = green/ total

                                       = 8/24  = 1/3

P(1 and 2 are green) = P(1st green) * P(2nd green)

                                  = 9/25 * 1/3

                                   = 3/25

To calculate the probability of drawing two green marbles consecutively without replacement, multiply the probability of drawing a green marble on the first draw (9/25) by the probability of drawing another green marble on the second draw (8/24, or 1/3), which equals 0.12.

The question is asking about the probability of drawing two green marbles consecutively from a total of 25 marbles without replacement. The total number of marbles is comprised of 6 blue, 10 red, and 9 green marbles. The probability rule for independent events must be used in this scenario, which states that the probability of both events occurring is the product of the probabilities of each event.

Initially, you have 9 green out of 25 total marbles so the probability of drawing a green is 9/25. After having drawn one green marble, there are now 8 green out of a total of 24 marbles left in the bag, hence the probability of drawing one more green would be 8/24 or 1/3. Therefore, the probability of drawing two green marbles consecutively, without replacement is (9/25) * (1/3) or 3/25 or 0.12.

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Answer:

The midpoint of the segment is (6,5)

Step-by-step explanation:

To find the midpoint of a segment we use the formula

midpoint = (x1+x2)/2, (y1+y2)/2

              = (10+2)/2 , (7+3)/2

              = 12/2, 10/2

                =6,5

The midpoint of the segment is (6,5)

Answer:

$8.10 would be the change

Step-by-step explanation:

10.99+0.91=11.90 to find the total

$20.00-11.90= 8.10 to find the change

Hope this helped ❤️

Answer:

$8.10

Step-by-step explanation:

The first step is to calculate how much you owe.

10.99 + .91 = 11.90

Change = Cash paid - how much you owe

               = 20.00 - 11.90

                =8.10

The change is $8.10

keeping in mind that there are 60 minutes in 1 degree, thus 16' is really 16/60 ≈ 0.2666...., meaning [tex]\bf 28^o16'\implies 28.\overline{27}~^o[/tex].

Check the picture below.

make sure your calculator is in Degree mode.

Answer: C

Step-by-step explanation:

Each of the number of cones multiplied by two equals the reciprocating number so they are all proportional.

Answer Is:

C Please mark me brainliest

Answer:

6/4 of an hour hope this helps.

Answer:

D 1/40

Step-by-step explanation:

Of the dogs at the show, 1/12 were hounds

Of the hounds, 3/10 were English foxhounds

To determine how many at the show were English foxhounds, we multiply 1/12 by 3/10

1/12* 3/10 = 3/120 = 1/40

Answer:1/3 and -3

Step-by-step explanation:pararel slope is the same as mane slope, and perpendicular is opicite reciprical.

Answer:

parallel: m = 1/3

perpendicular: m = -3

Step-by-step explanation:

Parallel line:

Slopes of parallel lines are equal.

If the given line has slope 1/3, then the parallel line also has slope 1/3.

Perpendicular line:

The slopes of perpendicular lines are negative reciprocals. That means that the product of the slopes is -1. That also means that to find the slope of a perpendicular line to a given line, first find the reciprocal of the slope of the given line (flip the fraction), then change the sign.

The slope of the perpendicular line and the slope of the line must multiply to -1.

Start with the given slope, 1/3. Now flip it to get 3/1 which is simply 3. Now change the sign to -3. The slope of the perpendicular is -3.

Check: multiply the slopes. They must have a product of -1.

1/3 * (-3) = 1/3 * (-3/1) = -3/3 = -1

The product is -1, so the slope of the perpendicular, -3, is correct.

Answer:

37.5 minutes

Step-by-step explanation:

48/12 = 4 (for every 1 minute, 4 minutes of movie is downloaded.

change 2.5 hours to minutes = 60+60+30 = 150 minutes

150/4 = 37.5 minutes to download the 2.5 hour movie

Answer:

i think c.

Step-by-step explanation:

The numbers are equal (choice A)

This is because 100% of something is that entire thing, not changed at all. It is not added to, or subtracted from. Example: 100% of 78 is 78. If you had 78 people in a room, and selected 100% of them, then you selected all 78 people.

Answer: Nate picked 60 apples and Laura picked 30. (1/2)x+x=90

Step-by-step explanation:

Answer:

If I am correct It is Commutative  Property

Hope That Helps!

Answer:

72.5 seconds

Step-by-step explanation:

7250 ÷ 1000 = 7.25

7.25 x 10 = 72.5 seconds

Answer:

72.50 s

Step-by-step explanation:

Lightning strikes the earth 1000 times every 10 seconds. First calculate time taken for each lightning to strike the Earth by unitary method:

1000 times lightning takes 10 s

1 time lightning would take [tex]\frac{10s}{1000} = 0.01 s[/tex]

Multiply 7250 with this time. It will yield amount of time in which lightning would strike 7250 times:

[tex]\frac{10s}{1000}\times 7250 =72.50 s [/tex]

Answer:

.6 is a rational number

Step-by-step explanation:

.6  can be written as 6/10

This is the ratio of integers , which is the definition of rational numbers

Answer:

Rational

Step-by-step explanation:

A rational number is a number that can be expressed as a fraction of integers.  .6 (or any terminating decimal) can be expressed as a fraction.  .6 is the same as 6/10.  Since it is able to be expressed as a fraction, it is a rational number.

Answers:

i) It can graze an area of approximately 961.625 square meters

ii) The ungrazed area is roughly 802.375 square meters

note: I used pi = 3.14 which is approximate; if you want more accuracy, use more decimal digits in pi

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

Explanation:

Check out the attached image below for a visual diagram.

The area of a circle is the formula

A = pi*r^2

Use r = 35 as the radius and pi = 3.14 as the approximation for pi, to get,

A = pi*r^2

A = 3.14*35^2

A = 3846.5

Then divide this by 4 to get the area of a quarter circle

A/4 = 3846.5/4 = 961.625

This is the approximate area the horse can graze

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

Subtract this from 42^2 = 42*42 = 1764 because this is the area of the entire square. Doing this will get you the ungrazed area

Ungrazed area = (entire plot) - (grazed area)

Ungrazed area = (entire area of square) - (area of quarter circle)

Ungrazed area = 1764 - 961.625

Ungrazed area = 802.375

Answer:

D

Step-by-step explanation:

[tex]\frac{7}{3}[/tex] is 7 ÷ 3

Answer:

D. 7 divided by 3

Step-by-step explanation:

A.7 divided by 1/3  

7 ÷ 1/3  Copy dot flip   7 * 3/1 = 21   No

B. 3 divided by 7

3 ÷7 = 3/7   No

C.1/7 of3

1/7 * 3  = 3/7    No

D. 7 divided by 3

7÷ 3 = 7/3   Yes

Answer:

19(42 + 58)

Step-by-step explanation:

Assuming x = multiply, you are trying to solve the distributive property. Divide common factors from both terms (in this case 19).

~

Answer:

19(42 + 58)

Step-by-step explanation:

19 * 42 + 19 * 58 =

= 19 * (42 + 58)     <-------  this is the expression

= 19 * 100

= 1900

[tex]\dfrac{-2\sqrt8}{4+\sqrt{12}}=\dfrac{-2\sqrt{4\cdot2}}{4+\sqrt{4\cdot3}}=\dfrac{-2\cdot\sqrt4\cdot\sqrt2}{4+\sqrt4\cdot\sqrt3}=\dfrac{-2\cdot2\sqrt3}{4+2\sqrt3}=\dfrac{-4\sqrt2}{2(2+\sqrt3)}=-\dfrac{2\sqrt2}{2+\sqrt3}\\\\\text{Use}\ (a+b)(a-b)=a^2-b^2\\\\=\dfrac{-2\sqrt2}{2+\sqrt3}\cdot\dfrac{2-\sqrt3}{2-\sqrt3}=\dfrac{-2\sqrt2(2-\sqrt3)}{2^2-(\sqrt3)^2}\\\\\text{Use distributive property and}\ \sqrt{a}\cdot\sqrt{b}=\sqrt{ab}\\\\=\dfrac{-4\sqrt2+2\sqrt6}{4-3}=\dfrac{2\sqrt6-4\sqrt2}{1}=2\sqrt6-4\sqrt2[/tex]

Final answer:

The price of an item can increase due to inflation, a reduction in supply, or an increased demand. High inflation rates make it challenging to determine the exact causes of price increases and complicate decision-making for both consumers and businesses.

Explanation:

The price of an item can increase due to various factors such as inflation, a decrease in the supply of the good, or an increase in the demand for the good. In situations of high inflation, such as the case in Israel in 1985 with an annual inflation rate of 500%, prices can change so frequently that stores might not post prices directly on items. This makes it challenging for consumers and businesses to respond to economic signals, complicates price comparisons, and makes it difficult to deduce the cause of price increases.

Inflation implies a general increase in prices and can affect all goods and services, leading consumers to spend money quickly before prices rise further. A decrease in supply, perhaps due to production issues or scarcity of resources, can lead to higher prices if demand remains constant. Conversely, an increase in demand for a good without a corresponding increase in supply can also drive prices up. Recognizing the reasons behind rising prices can be complex, especially when high inflation rates obscure the underlying economic indicators.

[tex]\text{Use}\ \dfrac{a^n}{a^m}=a^{n-m}.\\\\\dfrac{p^n}{p^8}=p^{-6}\\\\p^{n-8}=p^{-6}\iff n-8=-6\qquad\text{add 8 to both sides}\\\\\boxed{n=2}[/tex]