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3 years ago

Select the postulate of equality or inequality that is illustrated.

Mathematics

2 answers:

bixtya [17]3 years ago

8 0

the transitive postulate of inequality

Airida [17]3 years ago

4 0

Hello,
"<" is transitive.
a<b
b<2 ==>a<b<2==>a<2

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Help to solve this word problem?

goldfiish [28.3K]

Let's assume

length =l

width =w

we are given

the width of a rectangle is 7 feet less than its length

so, we get

$w=l-7$

now, we know that

area = length*width

$A=l*w$

now, we can plug w

$A=l*(l-7)$

we have

Area=170

$170=l*(l-7)$

$l^2-7l-170=0$

now, we can factor it

$(l-17)(l+10)=0$

now, we can solve for l

$(l-17)=0$

$length=17 feet$

now, we can find width

$w=17-7$

$width=10 feet$

so, dimensions are

$length=17 feet$

$width=10 feet$ ...............Answer

5 0

3 years ago

PLEASE help due today

fomenos

Answer: Number 3; $1250

Number 4; Salesperson A ($7428.30)

Number 5; 18%

Number 6; Rent 780, Food 900, Medical 450, Clothes 300, Miscellaneous 570.

Step-by-step explanation: (No 3) The principal amount is 5000, the rate is 5% (0.05) and the time in years is 5. The formula for calculating simple interest is as follows;

I = P x R x T

I = 5000 x 0.05 x 5

I = 1250

Therefore Joanna will pay $1,250 as interest

(No 4) The amount made by both salespersons is shown as follows;

A = 11% x 67530

A = 0.11 x 67530

A = 7,428.30

B= 8% x 85740

B = 0.08 x 85740

B = 6,859.20

Therefore from the calculations above, salesperson A made more commission and the amount made is $7,428.30

(5) John's earning is 38000 and he paid 6840 for entertainment. The percentage paid for entertainment therefore is as follows;

Percent paid = (entertainment/total income) x 100

Percent paid= (6840/38000) x 100

Percent paid = 684000/38000

Percent paid = 18

Therefore he paid 18% for entertainment

(6) Nora makes a total of 3000 a month broken down as follows;

Rent = (26/100) x 3000

Rent = 0.26 x 3000

Rent = 780

Food = (30/100) x 3000

Food = 0.30 x 3000

Food = 900

Medical = (15/100) x 3000

Medical = 0.15 x 3000

Medical = 450

Clothes = (10/100) x 300

Clothes = 0.10 x 3000

Clothes = 300

Miscellaneous = (19/100) x 3000

Miscellaneous = 0.19 x 3000

Miscellaneous = 570

4 0

3 years ago

Read 2 more answers

Help please don’t understand

SIZIF [17.4K]

Okay all the triangles equal to 180 , so you have to add the numbers that it gives you , then subtract by 180

. for example: 33+75?= 180
33+75= 108
180-108 =72
therefore your answer is 72 (for my example)

4 0

3 years ago

A farmer is tracking the number of soybeans his land is yielding each year. He finds that the function f(x) = −x2 + 20x + 100 mo

labwork [276]

Answer:

The farmer should expect to LOSE 10 pounds of soybeans per acre per year

Step-by-step explanation:

f(x)=-x^2 + 20x + 100

just find how many soybeans his land will yield (per acre) after 10 and 20 years:

After 10: 200 pounds of soybeans/acre

After 20: 100 pounds of soybeans/acre

Because 10 years have passed and they lost 100 pounds of soybean production per acre, the farmer should expect to lose 10 pounds of soybeans per acre per year (-10 pounds of soybeans per acre/year)

3 0

3 years ago

Is domain of f(x,y) = 1 + (4 -y^2)^1/2 open, closed or neither<br><br> is it bounded or unbounded?

omeli [17]

Answer:

Closed and Bounded.

Step-by-step explanation:

Hi there!

1) Let's start by finding the values in which the function is defined. Remember that this can be rewritten:

$f(x,y) = 1 + (4 -y^2)^{\frac{1}{2}} \:id\:est\:f(x,y)=1+\sqrt{(4 -y^2)}$