how many one-digit integers are there

Answers

Answer 1
the even ones are 2, 4, 6, 8. There are 4 of them. 2-digit integers: 10, 12, ..., 98 (45 of these), but in 4 of them (22, 44, 66, 88) the two digits are the same. So there are 45 − 4 = 41 even 2-digit integers with distinct digits.

Related Questions

I need an answer for this

Answers

Answer:

Step-by-step explanation:

18+12+9

Answer:

756 cm^2

Step-by-step explanation:

9 x 12 = 108 triangles

9 x 18 = 162 back side

9^2 + 12^2 = c^2

9^2 + 12^2 = 225

9^2 + 12^2 = 15^2

length of the hypotenuse is 15 so

15 x 18 = 270 slanted top

18 x 12 = 216 bottom

216 + 270 + 162 + 108 = 756 cm^2

Help! this homework id due tomorrow! (3-5-2021) Please help!

Answers

Answer:

432 inches.

Step-by-step explanation:

The formula for finding the area of a triangle is;

[tex]\frac{b*h}{2}[/tex]

Using this, we can find the area of each individual piece.

[tex]\frac{6*6}{2} =18[/tex]

Now that we have this, we simply multiply 18 by 24, which gives us 432.

Helpp me please im lost

Answers

A. The internet told me again

30pts + Brainliest to correct answer!!
As indicated below, write the equations of the line passing through the point (2, 2) and perpendicular to the line whose equation is y = x.
Part 1: Point-Slope form of the linear equation

Part 2: Slope-intercept form of the linear equation

Part 3: The general form of the linear equation

Answers

Answer:

See answers below

Step-by-step explanation:

Equation of a line in point slope form is expressed as;

y-y0 = m(x-x0)

m is the slope

(x0, y0) is a point on the line

Given the line y = x

The slope of the line is 1.

The slope of the line perpendicular is M = -1

Given the point (2,2)

x0 = 2 and y 0 = 2

Substitute

Recall y-y0 = m(x-x0)

y - 2 = -1(x-2) (Point slope form)

Express in slope intercept form;

y - 2 = -1(x-2)

Make y the subject of the formula;

y -2 = -x + 2

y = -x + 2 + 2

y = -x + 4 (slope intercept form)

The general form of linear equation is expressed as the slope intercept form which is y = -x+4

let y = f(x)

f(x) = -x+4

f(x) = 4-x (Linear equation)

Use the information given to enter an equation in standard form.

(9, 10) and (8, 7) are on the line.

Answers

Answer:

The equation in the standard form of the line through the given points is;

y = 3x - 17

Step-by-step explanation:

We start by getting the slope of the line;

m = (y2-y1)/(x2-x1)

m = (7-10)/(8-9) = -3/-1 = 3

The stands equation form is;

y = mx + b

m is slope, b is the y-intercept

so we have

y = 3x + b

To get b, we substitute the coordinates of any of the points

10 = 3(9) + b

10 = 27 + b

b = 10-27

b = -17

So the equation is;

y = 3x - 17

please help it will be helpful


Equivalent Ratio

9:36=
21:27=
48:72=
60:45=
10:70=​

Answers

1:4
7:9
5:9
4:3
1:7
Hope this helps :)

Simply (2x^5)^2(4x^3)

Answers

The answer is 16x^13

PLS HELP ILL GIVE U BRAINLIST !!!!

Answers

The opposite side is equal to 6 and the adjacent is equal to 5, so we know we need to use the tan inverse to get our answer.

tan^-1(opp/adj)
tan^-1(6/5)
=50.2 degrees!! :)

The diameter of a circle is 3 ft, what's the area to the nearest tenth?

Answers

Answer:

1.5

Step-by-step explanation:

Fill in the missing numbers
I need an answer ASAP

Answers

Answer:

the missing numbers be 60 and 6 respectively

Step-by-step explanation:

The computation of the missing numbers are shown below:

Let us assume the missing numbers be x

a/

, [tex]\frac{1}{2} \times 30 = \frac{1}{4} \times x\\\\15 = \frac{1}{4} \times x\\\\x = 60[/tex]

b.

[tex]\frac{1}{3} \times 12 = \frac{2}{3} \times x\\\\4 = \frac{2}{3} \times x\\\\x = 6[/tex]

Hence, the missing numbers be 60 and 6 respectively

What is 0.65625 rounded to the nearest tenth of a percent?

Answers

Answer:

0.7

Step-by-step explanation:

Ashley's rectangular bedroom measures 12 feet by 11 feet. The ceiling is 8 feet
high. Ashley wants to put wallpaper on the walls. What is the surface area of the
four walls of her room?

Answers

11.4

Step-by-step explanation:

Round your answer to the nearest hundredth.
0
A
70°
4
B

Answers

Answer:

70 i think

Step-by-step explanation:

Hi could someone give me an answer? please?

Answers

A)= 2/20 or 1/10
B)=16/20 or 4/5
C)=1/5

Answer:

a) 10%

b) 80%

c) 20%

Step-by-step explanation:

I hope that is useful for you :)

Find the area of the shaded sector
Help pls I'll give brainleist

Answers

Your answer is 32 you divide the 72 by 2 to find the area

Answer:

the answer is this had shades is the 72.

Which number line shows the solution to the inequality -2(3x - 1) <8?

I need this please!!!!

Answers

Answer:

C

Step-by-step explanation:

I haven't done this math in years but from what I remember this should be the correct answer.

B. is the correct option to choose.

What is inequality ?

An inequality is comparing of non-equal terms or expressions.

According to the given question we have to solve the given inequality and represent it in form of a number line with appropriate symbols.

Given,

-2(3x - 1) < 8.

- 6x + 2 < 8.

- 6x < 8 - 2.

- 6x < 6.

- x < 6/6.

- x < 1.

x > -1.         ( Think of moving the terms to the other side to make x positive )

This will be represented in a number line with open circle staring from -1 to positive infinity.

learn more about inequality here :

https://brainly.com/question/20383699

#SPJ2

How many moles contain 1.25x 10^15 molecules of glucose

Answers

Answer:

i.e. mass of 1 mole of glucose, C6H12O6 = (6 × 12.01 + 12 × 1.01 + 6 × 16.00) g = 180.18 g (using atomic weight data to 2 decimals) 1 mole of carbon atoms weighs 12.01 g and there are 6 moles of C atoms in 1 mole of glucose, so the mass of carbon in 1 mole of glucose = 6 × 12.01 g = 72.06 g.

Step-by-step explanation:

HELP!
Find the distance between each pair of points. Round your answer to the nearest 10th if necessary.

Answers

Answer:

The answer is 3.

Step-by-step planation:

All you have to do is find the 2 points and it looks like this:

(-2,-3) , (0,3)

3- -3 /0- -2   = 6/2 = 3

A square has an area of 12x^2 square feet. What is the length of its sides?

Answers

The area of a rectangle is found by multiplying the length by the width or L*W.
In a square the length and width are the same so just call the value
s for each side.

l*w = s*s = s2

In this case we have
s2 = 12x2 Take square root of both sides
s = √(12x2)
s = x√12
s = x√(4*3)
s = x√(22*3)
s = 2x√3

If you want the variable at the end of the number
you can write this as (2√3)x
I only put the parentheses to denote that the
term x is not part of the square root.

How do i slove for x2 + 19 = 3

Answers

Answer:

x = ± 4i

Step-by-step explanation:

x^2 + 19 = 3

Subtract 19 from each side

x^2 +19-19 = 3-19

x^2 = -16

Take the square root of each side

sqrt(x^2) = sqrt(-16)

x = sqrt(-1*16)

x =sqrt(-1) * sqrt(16)

We know that the square root of -1 is the imaginary number i

x = ± 4i

all expressions equivalent to 3.1y+ (y+10) + 4.2y

Answers

Answer:

8.3y + 10

Step-by-step explanation:

How Do I solve this? Answer too please.

Answers

The answer is 5/4 because that’s what you multiply the left triangle dimensions by to get the right triangle dimensions

Circle A has center of (6, 7), and a radius of 4 and circle B has a center of (2, 4), and a radius of 16.

Answers

Answer:

See solutions below

Explanation

We are to find the equation of circle A and B

The equation of a circle is expressed as;

(x-a)^2 + (y-b)^2 = r^2

(a, b) is the centre and r is the radius

For Circle A that has center of (6, 7), and a radius of 4

Substitute;

(x-6)^2 + (y-7)^2 = 4^2

(x-6)^2+(y-7)^2 = 16

Hence the equation of circle A is (x-6)^2+(y-7)^2 = 16

For circle B:

If circle B has a center of (2, 4), and a radius of 16

The equation is expressed as;

(x-2)^2+(x-4)^2 = 16^2

(x-2)^2+(x-4)^2 = 256

Hence the required equation is (x-2)^2+(x-4)^2 = 256

4. Which trigonometric expression is equal to cos 72°? A. cos 55° B. cos 50° C. sin 61° D. sin 18°​

Answers

Answer:

D.  sin 18°

Step-by-step explanation:

sin 18 because 18 + 72 = 90

PLEASE HELP ME FAST!!!!!

Answers

Answer:

29/36pi radians

240 degrees

Step-by-step explanation:

pi  = 180

145/180pi = 29/36pi radians

4/3*180 = 240 degrees

After a 2 1/2 hour rainstorm, there are 5 inches of water in a bucket outside. What is the rate per inch?

Answers

Answer:

2 inches per hour

Step-by-step explanation:

2 1/2 hours is equivalent to 150 minutes.

Set up a proportion; let x equal inches of rain

[tex]\frac{5}{150}[/tex]=[tex]\frac{x}{60}[/tex]

Cross multiply -> 150x=300

Divide both sides by 150 to get -> x=2

PLS HELP ME! (awarding brainliest)

I need to find the AREA of these 6 circles using 3.14.

Answers

Answer I don't know the answer but i can help you find it out, so basically your going to times 3.14 by the numbers in the circle

Step-by-step explanation:

Step-by-step explanation:

In order to find each one, you use the formula A=pi R², meaning you put the radius to the power of two(multiply it by itself) and then multiply that by pi. ex: 7.4×7.4= 54.76,

next 54.76×3.14=171.9, which is your answer. If it gives you the diameter of the circle, divide that by two to get the radius, and follow the steps from before. Ex: 2.24÷2=1.12, next 1.12×1.12=1.2544, next 1.2544×3.14=3.9, the answer.

answer)

3.90.20.5171.9115,735 1.5

PLS HELP FOR ALL MY POINTS ILL GIVE BREAINLEST TO WHO EVER IS RIGHT

Answers

I am going by the numbers on the pictures;

1) 2in, 4in, 6in

2) 2ft

3) 4cm

4) 18.55mm and 42.35

5) I am not really sure, if the picture is represented by the 28, the the object would be smaller, if the picture is represented by the 4 the object would be bigger.

Hope this helps a bit

hello help please i’ll mark brainliest!!!

Answers

Answer:

Its is 1,3,4

Step-by-step explanation:

Mark me brainliest please <3

Write log1/4(1/64)=3 in exponential form

Answers

For logarithmic equations,
log
b
(
x
)
=
y
log
b
(
x
)
=
y
is equivalent to
b
y
=
x
b
y
=
x
such that
x
>
0
x
>
0
,
b
>
0
b
>
0
, and
b

1
b

1
. In this case,
b
=
1
4
b
=
1
4
,
x
=
1
64
x
=
1
64
, and
y
=
3
y
=
3
.
b
=
1
4
b
=
1
4
x
=
1
64
x
=
1
64
y
=
3
y
=
3
Substitute the values of
b
b
,
x
x
, and
y
y
into the equation
b
y
=
x
b
y
=
x
.
(
1
4
)
3
=
1
64
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