Let A be a four digit number and let B be a three digit number so that A-b Is a single digit number. How many possible pairs (a,b) are there?​

Answers

Answer 1

Answer:

45

Step-by-step explanation:

1000-999 through 1000-991 (9 pairs)

1001-999 through 1001-992 (8 pairs)

1002-999 through 1002-993 (7 pairs)

1003-999 through 1003-994 (6 pairs)

1004-999 through 1004-995 (5 pairs)

1005-999 through 1005-996 (4 pairs)

1006-999 through 1006-997 (3 pairs)

1007-999 through 1007-998 (2 pairs)

1008-999 (1 pair)


Related Questions

Each table shows a proportional relationship between x and y, Match each table with its constant of proportionality
ху
у
ху
х
y
1 20
2
80
2 0.4
7.5 4,5
2 40
B 320
4 0.8
10
6
3 B0
12 480
9 1.8
17.5 10.5
0.6
0.2
20
40
Have

Answers

Answer:

From left to right

20, 40, 0.2, 0.6

Step-by-step explanation:

y/x = k

1st chart

20/1 = 20

2nd chart

80/2 = 40

3rd chart

0.4/2 = 0.2

4th chart

4.5/7.5 = 0.6

Mr. Moore planted a tree in his backyard. His tree grew 3 1/3 feet over five years. if his tree grew at the same rate each year, how much did the tree grow per year.

A. 1/5 foot

B. 1/3 foot

C. 3/5 foot

D. 2/3 foot

Answers

Answer:

D. 2/3 per year.

Step-by-step explanation:

3 1

3

÷ 5

=  

10

3

÷ 5

=  

10

3

×  

1

5

=  

10 × 1

3 × 5

=  

10

15

=  

10 ÷ 5

15 ÷ 5

=  

2

3

If a1 = 7 and an = 3an-1 + 3 then find the value of a5.
Find the value of a5

Answers

Answer:

here you go

Step-by-step explanation:

Recursive expressions are ways of expressing sequence using functions. The fifth term of the recursive sequence is 567.

What is Recursive functions?

Recursive functions are ways of expressing sequence using functions. Recursive Function is a function that repeats or uses its own previous term to calculate subsequent terms and thus forms a sequence of terms.

here, we have,

given that,

Given the following recursive functions

a₁=7 and;

aₙ = -3aₙ₋₁

For the second term;

a₂ = -3a₁

a₂  = -3(7)

a₂  = -21

For the third term a₃

a₃ = -3a₂

a₃ = -3(-21)

a₃ = 63

For the fourth term

a₄ = 3a₃

a₄ = 3(63)

a₄ = 189

For the fifth term

a₅ = 3a₄

a₅ = 3(189)

a₅ = 567

Hence the fifth term of the recursive sequence is 567.

Learn more on recursive sequence here:

brainly.com/question/19424045

#SPJ2

ANSWER FAST
k+12>=20, if k=15

Answers

Answer:

Thats not true

Step-by-step explanation:

12+15=27

27>20

27 is greater than 20 but your equation doesn't  equal 20

Find the measure of
angle R.

Answers

Answer:

147

Step-by-step explanation:

since it is straight line, subtract 33 from 180 - - > 180 - 33 = 147

You roll a six sided number cube and flip a coin. What is the probability of rolling a number greater than 5 and flipping heads.

Answers

Answer:

1/6 for the number cube and 1/2 for coin

Step-by-step explanation:

Answer:

1/12

Step-by-step explanation:

There are a total of 12 possible outcomes (numbers 1 through 6, and a heads or tails for each one). There is only 1 outcome where the number rolled is greater than 5 (has to be 6) and you flip a head.

So there is a 1 out of 12 chance.

1/12

Plz help meeeeeeeeeeee

Answers

Answer:

kjk

Step-by-step explanation:

ddfv

3/4 maybe I’m not 100% sure

help(I need this to pass 6th)

Answers

Answer:

It is going to be the first one

hay guys can you plz help

Answers

We can notice from the figure that : Area of the home plate is equal to sum of the Area of the rectangle ( 8 in x 15 in) and Area of the triangle with height 6 in and base 15 in.

Area of the rectangle : Length x Width

⇒  Area of the rectangle = 15 x 8 = 120 in²

Area of the triangle : 1/2 x Base x Height

⇒  Area of the triangle = 1/2 x 15 x 6 = 45 in²

Area of the home plate = Area of rectangle + Area of triangle

⇒ Area of the home plate = 120 in² + 45 in² = 165 in²

Answer : D

7x+8y= 8

Slope

Y intercept

Answers

Answer:

Slope = -7/8

Y-intercept = (0, 1)

Step-by-step explanation:

Answer:

[tex]slope = - \frac{7}{8} [/tex]

y- intercept= 1

Step-by-step explanation:

Rearrange the equation such that it is in the form of y=mx+c. This form is known as the slope-intercept form, and m is the gradient while c is the y-intercept.

7x +8y= 8

8y= -7x +8

Divide by 8 on both sides:

[tex]y = - \frac{7}{8} x + 1[/tex]

Thus, the slope is [tex] - \frac{7}{8} [/tex] and the y-intercept is 1.

Another way to find the y-intercept is to substitute x= 0 into the equation since the y-intercept occurs at x= 0.

7x +8y= 8

When x= 0,

7(0) +8y= 8

8y= 8

y= 8 ÷8

y= 1

Thus, the y-intercept occurs at y= 1 or the coordinate (0, 1).

Note: slope and gradient have the same meaning and can be used interchangeably

VERY URGENT PLEASE HELP!!!!

A small publishing company is planning to publish a new book. The production costs will include one-time fixed costs (such as editing) and variable costs (such as printing). The one-time fixed costs will total $59,904. The variable costs will be $9.25 per book. The publisher will sell the finished product to bookstores at a price of $22.25 per book. How many books must the publisher produce and sell so that the production costs will equal the money from sales?

Answers

Answer:

4608

Step-by-step explanation:

What is the value of 4^3 divide 2^3

Answers

Answer:

98

Step-by-step explanation:

Multiply the reciprocal of the second number,

Multiply the numerators and denominators respectively,

Answer:

8

Step-by-step explanation:

Reduce the expression by cancelling the common factors

lolllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll

Answers

Answer:

trapezoid

hope this helps

have a good day :)

Step-by-step explanation:

Please someone please helps me with this question pls

Answers

I think it is y = -4x + 3

Q6) There are 40 boys and 20 girls at a party.
35% of the boys and 60% of the girls are wearing sunglasses.
How many people are wearing sunglasses altogether?

Answers

Answer: 26 people

Step-by-step explanation: For the boys, there are 40 boys and only 35% of them are wearing sunglasses. To find how many boys are wearing sunglasses, you have to find 35% of 40. 0.35 • 40 is 14. So 14 boys are wearing sunglasses. Now for the girls, there are 20 girls and 60% of them are wearing sunglasses. So, you find 60% of 20. 0.6 • 20 is 12. 12 girls are wearing sunglasses. However, since we want to know how many people are wearing sunglasses altogether, we need to add up the number of boys that are wearing sunglasses to the number of girls that are wearing sunglasses. 14 boys + 12 girls = 26.

So your final answer is: 26 people are wearing sunglasses altogether.

**Hope this helps (I tried)**

can someone help me with this?<33

Answers

9514 1404 393

Answer:

  -35

Step-by-step explanation:

Replace F with -31 and do the arithmetic.

  C = 5/9(-31 -32)

  C = (5/9)(-63) = -35

The temperature in degrees Celsius is -35.

50 POINTS !!


PLEASE HELP !! ILL GIVE BRAINLIEST TO THE RIGHT ANSWERS.

Answers

Answer:

h = 6.7km

Step-by-step explanation:

4.5^2 + 4.9^2 = c^2

44.26 = c^2

6.65 = c

The answer would be about 3.1 (terribly sorry if I’m incorrect)

Math subject the upper question please

Answers

Step-by-step explanation:

a). i disagree with the student because the next two terms are 36 and 44

with a common difference of 8

b). T{n}= a +(n-1)d

c).T{100}= 4+(100-1)8

T{100} = 4+(99)8

T{100}= 796

d). T{200} = 4+ (200-1)8

T{200} = 4+ (199)8

T{200} = 1596

How does 84.013 compare to 84.01
84.013 > 84.01
84.013 < 84.01
84.013 = 84.01

Answers

Answer:

84.013 > 84.01

Step-by-step explanation:

84.013 is more than 84.01 because it has .12

Find the volume of a rectangular storage box that is 10 inches high, 24 inches long, and 16 inches wide.

Answers

Answer:

3,840 in^3

Step-by-step explanation:

PLEASE HELP ME!!

Find the measure of angle A:

Find the measure of angle B:

Answers

Answer:

Measure of angle A is 65 degrees and measure of angle B is 37 degrees.

Step-by-step explanation: First add all of the degrees of excluding x (4+(-9)) which is -5. Then subtract that from 180 since that is the sum of all the angles in a triangle which gives you 185. Then divide it by the number of "x's" that there are which is 5 which gives you 37. So angle B is x which is 37 degrees and angle a is 2(37)-9 which is 65 degrees. Hope this helps.

Need help please!!!!!!!!!!

Answers

Answer:

n=39

Step-by-step explanation:

I answered, now do the test on your own, no one likes a cheater

Martha recorded the eye colors of the people who have already signed up for a lecture on genetics.
gray 1
brown 10
hazel 1
green 1
blue 7
Considering this data, how many of the next 16 people to sign up should you expect to be brown-eyed?

Answers

Answer:   8

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

Explanation:

According to the table, 10 people have brown eyes. This is out of 1+10+1+1+7 = 20 people total. So 10/20 = 0.50 = 50% of the group has brown eyes.

If this trend holds up, then we expect 50% of the next group of 16 people also have brown eyes.

50% of 16 = 0.50*16 = 8

We expect 8 people to have brown eyes in this next group. This is of course assuming that the first group is unbiased and represents the population (or is close enough).

The density of a solid bar is 25 pounds per cubic foot. If the bar has a volume of 5.2 cubic feet, what is the weight of the bar?​

Answers

Answer:

Step-by-step explanation

Goodbye

Which expression has the same value as 6 x 90? ​

Answers

Answer:

Step-by-step explanation:

There are no other expression here what are the answer options

The table represents a proportional relationship. Complete the table and write an equation that describes the relationship

Answers

Answer:

Which table?

There's non

Can you post the table.

A regular hexagon has a perimeter of 127 m. Find its area to the nearest tenth.

Answers

Answer:

1164.01

Step-by-step explanation:

First you realize there is 6 sides on a hexagon. Then, you divide the 127 by 6. Then you split the hexagons into 6 parts. This leads you to a triangle. Then if you divide the degrees so 360 total degrees/6 parts = 60. If you split that triangle in half, the angle becomes 30 degrees. Then you will realize the 30 degree is pointed at the 127/12. Because you know the x, (x)(Square root 3), 2x theorem (the 30, 60, 90 triangle), you get the height of the triangle which is about 18.33 . Then you do the area of Triangle = 1/2 * base * height. Therefore you should get 194.00 Because there is 6 parts to a hexagon, you then need to multiply by 6. Your final answer should be 1164.01. This should be correct, please correct me if I’m wrong, thanks.

Please help me with this asap!

Answers

Answer:

c

Step-by-step explanation:

Explain why the remaining figures( BESIDES D ) are not nets.​

Answers

Step-by-step explanation:

A) there are only five rectangles

B) when you fold it together two pieces will overlap

C) im not sure for this cuz it seems to me this is a net

D) N/A

E) same as (B), when you fold it together two pieces will overlap

If you rotate a equilateral triangle by a side, what is the name of the resulting 3d shape

Answers

☞ANSWER☜

3D shapesCube CuboidSphere Square-based pyramidCylinder Triangular prismPentagonal pyramid Hexagonal prism

☞EXPLANATION☜

A solid of revolution is a three-dimensional figure obtained by rotating a two-dimensional figure (or curve) around a straight line (called the axis) that lies in the same plane. ... Since the triangle's interior is shaded, it creates the interior of the cone, creating a solid figure.

Three dimensional shapes are obtained by rotating the two dimensional shapes. When a circle is rotated we get sphere; when a triangle is rotated we get cone; when rectangle or square is rotated we get cylinder

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