Ştiind că a . b = 2 019 şi a c= 2019, calculați a. (b-c)

Answers

Answer 1

Answer: a × ba × c = a (bc) = 0

a × ba × c = 2019-2019 = 0

Step-by-step explanation:

Answer 2
The answer isn’t 7 I just need more answers

Related Questions

hi everyone can you tell i'm i right and also can anyone help in explaining please and also dont forget youre beautiful of world lovely kind hot

Answers

Answer:

yes its correct

Step-by-step explanation:

robyn has 3 pans to bake brownies for her friend she pours 1/4 cup of chocolate chips into each pan how much chocolate chips does she need in all

Answers

Answer:

3/4

Step-by-step explanation:

If she has 3 pans and pours 1/4 in each that's 3/4

Answer:

3/4 cups of choclate chips

Step-by-step explanation:

1/4+1/4+1/4=3/4

how do i graph y=x-6

Answers

Replace x with a FE numbers, solve for y then use the x and y values for points on the graph.

Y = x -6

X = 7

Y = 7-6

Y = 1

Point (7,1)

X = 10

Y = 10-6

Y = 4

Point(10,4)

Math question could someone help me !

Answers

Answer:

60

Step-by-step explanation:

SInce 2 out of 5 of 100 support it, that means that 40 support. This means that 60 do NOT support it

Max is shopping for breakfast cereal at the supermarket. He wants to determine which two cereals are in a proportional relationship according to their cost-to-size ratio.

Answers

Answer:

A and cereal C have equivalent cost-to-size ratios of $0.21 per ounce, they are in a proportional relationship.

Step-by-step explanation:

Answer:

a c

Step-by-step explanation:

what is equavilent to (10x+7r-r^(2))+(-6r^(2)-18+5r)

Answers

Answer:

−7r^(2)+12r+10x−18

Step-by-step explanation:

Grab the original equation: 10x+7r−r^(2)−6r^(2)−18+5r

For subtraction bits, treat them as negatives: 10x+7r+−r^(2)+−6r^(2)+−18+5r

Combine like terms: (−r^2+−6r^2)+(7r+5r)+(10x)+(−18)

Simplify that, and you get your final answer: −7r^(2)+12r+10x+−18

What is 67/100 as a decimal representation and a percent representation

Answers

Answer:

Decimal Representation: 0.67

Percent Representation: 67%

Answer:

decimal = 0.67

percentage =67%

I need help. the Question in in Photo

Answers

Answer:

I had same one so the answer is C

Step-by-step explanation:

♦I hope this helps you also please mark brainliest ♦

♦☻☺Thanks☺☻♦

HELP PLEASE PLEASE!!

Answers

9514 1404 393

Answer:

  x = 21

Step-by-step explanation:

The parallel lines divide the segments proportionally.

  x/27 = 28/36

  x = 27(28/36) . . . . multiply by 27 (in your head: (3·9)(4·7)/(4·9) = 3·7)

  x = 21

Work our the size of angle x.

Answers

Answer:

13°

Step-by-step explanation:

180-98=82

82+85=167

180-167= 13

x= 13°

Which expressions have an estimated value that is close to 9? Check all that apply. ​

Answers

Answer:

can you post a picture of the question?

Answer:

Hello There!

Step-by-step explanation:

Could you please put the answer choices/expressions? You can just write them in the comment section and I can edit this answer to help you out :)

Happy New Year

Simplify Negative 3 over 2 ÷ 9 over 6.

Answers

Answer:

-1

Step-by-step explanation:

-3/2 / 9/6

-1.5 / 1.5 = 1

The answer to this math question is negative one (-1)

Which is the better deal? [You must show your work in order to receive full credit (2 points).]
12 packs of fruit snacks for $9.12 or 9 packs of fruit snacks for $6.99

Answers

Answer:

i think it is 12 packs of fruit snacks for $9.12

Step-by-step explanation:

2(6 + 3n) - 4
i need the answer...
.....

Answers

Answer:

See below.

Step-by-step explanation:

2(6 + 3n) - 4 (Given)

12 + 6n - 4 (Distribute)

6n + 8 (Add like terms)

3n + 4 (Divide by a factor of 2)

In case you wanted to solve for n:

2(6 + 3n) - 4 = 0 (Given)

12 + 6n - 4 = 0 (Distribute)

6n + 8 = 0 (Add like terms)

6n = -8 (Substract on both sides)

n = -4/3 (Divide 6 on both sides)

Rearrange the following and ad .005, 2,002.181, 795.41, 14.0,184

Answers

Answer:

1 2 3 4

Step-by-step explanation:

Answer:

1234

Step-by-step explanation:


13 Here is information about the age, in years, of each of Jelina's five children when written
in order
a
b
b/2+ a
2b + a +3
2b + a +5

It is given that
a is the age of the youngest child
a≠b
two of the children have the same age
the mean age of the five children is 10.6
Calculate the value of a and the value of b
Show clear algebraic working.

Answers

Answer:

a)x-1 by 4=3

b)3x+6 by 2=3 by 2

c)3x-1by5=2x+3by7

Help lol I’m bad at mafs and I need halp

Answers

Answer:

(A) 5^3 * 5^-4

= 5^(3-4)

= 5^(-1)

= 5^-1

= 1/5^1

= 0.2

Yes, expression has value between 0 and 1

(B) 3^5 / 3^-6

= 3^5 * 3^6

= 3^(5+6)

= 3^(11)

= 177147

No, expression does not have value between 0 and 1

(C) (1/4)^3 * (1/4)^2

= (1/4)^(3+2)

= (1/4)^(5)

= (1^5/4^5)

= 1 / 4^5

= 1 / 1024

= .000977

Yes, expression has value between 0 and 1

(D) (-7)^5 / (-7)^7

= (-7)^5 * (-7)^-7

= (-7)^(5-7)

= (-7)^(-2)

= 1 / (-7)^2

= 1 / 49

= 0.02041

Yes, expression has value between 0 and 1

Step-by-step explanation:

For these problems we need to know a few things:

(1) Powers of like bases, you add the exponent

This means the following:

x^y * x^z = x^(y+z)

Or

x^y / x^z = x^(y-z)

(2) Negative powers can be swapped on the fraction to be positive

This means the following:

x^-y = 1 / x^y

Or

1 / x^-y = x^y

Using these two things, we can easily simplify all the expressions given.

Cheers.

Which statement is correct?
A. Secant is the reciprocal of sine.
B. Cotangent is the reciprocal of tangent.
C. Cosecant is the reciprocal of cosine.
D. Cosine is the reciprocal of cotangent.
SUBMIT

Answers

Answer:

Solution in photo

Step-by-step explanation:

The statement that is correct is Cotangent is the reciprocal of tangent.

What is cotangent?

The term cotangent can be written as  ( cot ⁡ ). It is said to be the reciprocal of the tangent and It is one whose ratio of its adjacent side is said to be the opposite side that is found in a right triangle.

Therefore, we can say that The statement that is correct is Cotangent is the reciprocal of tangent as it is the correct one among the options.

Learn more about tangent from

https://brainly.com/question/4470346

#SPJ2

How did you get the answer

Answers

Answer:

when you solve a questions

Step-by-step explanation:

You get the answer when you solve a questions correctly

please mark brainlest i had never got brainlest

Answer:

by getting the information for  a text ot story

Step-by-step explanation:

Andy Mendoza makes handcrafted dolls, which he sells at craft fairs. He is considering massproducing the dolls to sell in stores. He estimates that the initial investment for plant and equipment will be $25,000, while labor, materials, packaging, and shipping will be about $10 per doll.He has determined that sales volume is related to price, according to the following linear equation: v=4000-80p Develop the nonlinear profit function for Andy and determine the price that will maximize profit, the optimal volume, and the maximum profit per month.

Answers

Answer:

It is 12

Step-by-step explanation:

Hope this helped have an amazing day!

In the diagram, segments AD and AB are tangent to circle C. Solve for x.
A)
x = 3


B)
x = 9


C)
x = 13



D)
x = 3; x = -3

Answers

Answer:

3

Step-by-step explanation:

1. according to the condition ΔACD=ΔACB, then AB=AD.

2. if to re-write AB=AD, then 11=x²+2, ⇒ x=3;-3.

3. the value of the length can not be smaller than '0', then x=3.

the answer A) x=3

How do I simplify 25.3(2.4)

Answers

Answer:

60.72

Step-by-step explanation:

you multiply 25.3 by 2.4

The frequency distribution representing the number of frequent flier miles accumulated by employees at Brumley Statistical Consulting Inc. is repeated froFrequent Flier Miles (000) Frequency0 up to 3 53 up to 6 126 up to 9 239 up to 12 812 up to 15 2Total 50a. How many employees accumulated less than 3,000 miles?b. Convert the frequency distribution to a cumulative frequency distribution.c. Portray the cumulative distribution in the form of a cumulative frequency polygon.d. Based on the cumulative frequency polygon, about 75% of the employees accumulated how many miles or less?

Answers

Answer:

a. How many employees accumulated less than 3,000 miles?

The number of employees accumulated less than 3,000 miles= 5

So the number of employees accumulated less than 3,000 miles is 5.

d. Based on the cumulative frequency polygon, about 75% of the employees accumulated how many miles or less?

8.5 thousands of miles, found by starting at 75 percent on the vertical axis on the right, over to the polygon and then down to the horizontal axis.

Step-by-step explanation:

The given frequency distribution representing the number of frequent flier miles accumulated by the employees in a company.                        

Frequent Flier Miles (000) Frequency

0                     up to 3 5

3                      up to 6 12

6                      up to 9 23

9                     up to 12 8

12                   up to 15 2

Total                       50

a. How many employees accumulated less than 3,000 miles?

The number of employees accumulated less than 3,000 miles= 5

So the number of employees accumulated less than 3,000 miles is 5.

b. Convert the frequency distribution to a cumulative frequency distribution.

We make the cumulative frequency distribution from the frequency distribution by adding up a frequency and all other frequencies below it.                

Frequent Flier Miles Frequency Cumulative frequency

0 up to 3                                5 5

3 up to 6                                      12 17

6 up to 9                                      23 40

9 up to 12                               8 48

12 up to 15                               2 50

Total 50

d. Based on the cumulative frequency polygon, about 75% of the employees accumulated how many miles or less?

8.5 thousands of miles, found by starting at 75 percent on the vertical axis on the right, over to the polygon and then down to the horizontal axis.

A2. Find y' and y" for y^2 = x^2
+ sinxy

Answers

Answer:

y'   = (2x + y cosxy)/(2y + x cosxy)

Step-by-step explanation:

Using implicit differentiation:

y^2 = x^2 + sin xy

2y y' = 2x + cos xy  * (xy' + y)

2y y' = 2x + xy' cos xy + y cos xy

2y y' - xy' cosxy = 2x + ycos xy

y'   = (2x + y cosxy)/(2y - x cosxy)

what is the estimate value of 976 divide by 0.188

Answers

Answer:

Estimating is used to help predict the answer to a calculation. We use estimation to make calculations more manageable and to give us an idea of the answer. Estimation is used in the construction industry, for example, when buying materials and planning labour.

Answer:

5191.4

Step-by-step explanation:

976/0.188

=5191.4

PLEASE HELP LAST QUESTIONI HAVE 4 MINS LEFT

Answers

Answer:

mmmm.

Step-by-step explanation:

well it's been 6 minutes so I dont know how to help you here man. thank you for the points tho!!!

Monica's school band held a car wash to raise money for
a trip to a parade in New York City. After washing 125
cars, they made $775 from a combination of $5.00 quick
washes and $8.00 premium washes.

Answers

Answer:

1 is 50 and 2 is 75

Step-by-step explanation:

i did the work

please help me asap​

Answers

Answer:

1) B (66)

2) A (-36)

3) A (10)

4) B (1)

Step-by-step explanation:

Just solve the equation by using inverse operations

(1) 66
(2) -36
(3) 10
(4) 1

If the Ramirez family deposits $5000 in a savings account at 7.5% interest compounded continuously, how much will be in the account after 15 years?

Answers

Answer:

The amount is $14794.39 and the interest is $9794.39

Step-by-step explanation:

84 9/20 as a decimal number I NEED THE ANSWER ASAP

Answers

Answer:

84.45

Step-by-step explanation:

hope this helps!!! please mark brainliest:)

84.45!!
hope it helps!:)
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