What must NOT be included in an expression?

1. an equals sign

2. at least one variable

3. one or more numbers

4. an operation such as addition

Answers

Answer 1

Answer:

1. an equal sign

Step-by-step explanation:

An expression is a mathematical statement that does not contain an equal sign. It cannot be solved for unless the value of the variable is given.

Answer 2

Answer:

1. an equals sign

Step-by-step explanation:

expression does NOT have a equal sign but an equation does have an equal sign.


Related Questions

Choose the missing step in the given solution to the inequality −2x − 14 > −4 + 3x.

−2x − 14 > −4 + 3x
−5x − 14 > −4
_____________
x < −2

A. −5x < 10
B. −5x > −18
C. −5x > 18
D. −5x > 10

Answers

Answer:

Step-by-step explanation:

-2x - 14 > -4 + 3x

subtract 3x from both sides

-5x - 14 > -4

add 14 to both sides

-5x > 10

divide both sides by -5

x < -2

The answer would be -5x > 10.

This is because our last inequality was -5x - 14 > -4 so we add 14 to both sides and it would look like this -5x (-14 + 14) > (-4 + 14) which would transition into our next inequality -5x > 10.

So therefore the answer would be -5x > 10.

What is 5944.1 to the nearest 10

Answers

Answer:

if you mean to the tens place, then its 5,940

Step-by-step explanation:

Answer:

5940

Step-by-step explanation:

Please someone help me out. I beggggg

Answers

Answer:

1.  144  2. 16 3. 1   4. 3x-6  

Step-by-step explanation:

So think of this as a function in a function.  So you work from the inside to the outside.  So for problem 1, we start with f(4)) [you read it "f of 4"] so what is the solution when x = 4, since f(x) means the function of x so f(4) means 'the function of 4' inside f(x).  

Since f(x) = 3x then f(4) = 3(4) [notice how you substitute the 4 everywhere you see a letter x]

so f(4) = 12, now you work the next part h(f(4)) since f(4)=12 then h(12)

So take the h(x) function which is h(x) = [tex]x^{2}[/tex] then h(12) = [tex]12^{2}[/tex] so h(12) = 144

please do ALL 3 will give brainliest!! and a surprise!!!

Answers

Answer:

a) -2.5x+3.9+1.7x

circle: 2.5x and 1.7x

variables: x

b) 1 1/2+t+2/3s

no like terms

variables: s and t

c) 15k+2/3k+3m

circle: 15k and 2/3k

variables: k and m

(-2, 3), (3, -2), (1, 3), (0, -2)
DOMAIN
RANGE

Answers

Answer:

(-2, 3) = domain -2 = range 3

(3, -2) = domain 3 = range -2

(1, 3), = domain 1 = range 3

(0, -2) = domain 0 = range -2

Step-by-step explanation:

Given the measure of two of the angles, find the measure of the 3rd

Answers

Answer:

Measure of 3rd angle is 80 degrees

angle SAX - angle PAX = measure of 3rd angle (SAP)

hence 141 - 61 = 80 degrees

hence measure of 3rd angle is 80 degrees

GOOD LUCK FOR THE FUTURE! :)

In the figure below, mZ1 =(x+44) and mZ2=3xº.
Find the angle measures.

Answers

Answer:

where is the diagram? please provide the diagram.

What is the length of the hypotenuse to the nearest hundredth place in the diagram below

Answers

Answer:

Hypotenuse (x) = 7.27

Step-by-step explanation:

cos57*=4cm/x

cos57*/cos57*=4/cos57*

x=4/cos57*

cos57*~.55

x=4/.55

x=7.27

Mr Tan monthly salary is $2999.52. In order to fill up a membership application form, mr Tan has yo roping off his monthly salary to the nearest dollar. What should he write on the application form for his monthly salary?

Answers

Answer:

three thousand dollars

Step-by-step explanation:

you round up to 3000

The diagram shows the intersections of several straight roads. The avenues run parallel to each other.

Amana walks along Oak from point A to B. To the nearest foot, how far does she walk?
75 ft
226 ft
307 ft
347 ft

Answers

Answer:

The answer is B: 226 ft

Step-by-step explanation:

Just did the assignment on edg

Please I need serious help with this ASAP it's easy! Please explain your answer I will mark brainliest!

Answers

Answer:

B, A, C

Step-by-step explanation:

The size of the angle is directly proportional to the length of the side

Verify Euler's formula for

(a) Tetrahedron

(b) Hexagonal prism

Answers

Answer:

Euler's formula for polyhedron is:

V - E + F = 2where V- vertex, E- edge, F- face

As per the above formula the relationship between the vertexes, edges and faces is same for any polyhedron.

Lets confirm, have a look at the picture

(a) Tetrahedron, count each element:

V = 5, E = 8, F = 5

Verify

5 - 8 + 5 = 10 - 8 = 2 - correct

(b) Hexagonal prism, count each element:

V = 12, E = 18, F = 8

Verify

12 - 18 + 8 = 20 - 18 = 2 - correct

the weight w of a steel frame is 9.2kg correct to 1 decimal place. complete the error interval for weight w

Answers

Answer:

9.5_<w<9.25

Step-by-step explanation:

Turning off the water while brushing your Teeth saves 350 centilliters of water. How many liters of water can you save if you turn off the water the next 3 times you brush your teeth? (Round your answer to the nearest hundredth)

Answers

Answer:

1.1l

Step-by-step explanation:

350×3=1050cl

=1.05l

rounded to nearest hundredth=1.1l

A line that includes the point (6,-4) has a slope of -1/2 what’s the equation in slope intercept form

Answers

Answer:

The equation in the slope-intercept form will be:

[tex]\:y=-\frac{x}{2}-1[/tex]

Step-by-step explanation:

Given

Point (6, -4)Slope m = -1/2

Important Tip:

The slope-intercept form of the line equation

[tex]y = mx+b[/tex]

where

[tex]m[/tex] represents the slope[tex]b[/tex] is the y-intercept

In our case,

(x, y) = (6, -4)m = -1/2

Step 1 of 2

Determine the y-intercept b

substitute m = -1/2 and (x, y) = (6, -4) in the slope-intercept form of the line equation

[tex]y = mx+b[/tex]

[tex]-4\:=-\:\frac{1}{2}\left(6\right)+b[/tex]

switch sides

[tex]-\frac{1}{2}\left(6\right)+b=-4[/tex]

[tex]-3+b=-4[/tex]

Add 3 to both sides

[tex]-3+b+3=-4+3[/tex]

simplify

[tex]b=-1[/tex]

Thus, the y-intercept b = -1

Step 2 of 2

substitute the values

substitute b = -1 and m = 1/2 in the slope-intercept form of the line equation

[tex]y = mx+b[/tex]

[tex]y=-\frac{1}{2}x+\left(-1\right)[/tex]

[tex]\:y=-\frac{x}{2}-1[/tex]

Conclusion:

Therefore, the equation in the slope-intercept form will be:

[tex]\:y=-\frac{x}{2}-1[/tex]

The graph of the line equation is also attached.

The semi-circle has a diameter of 8. What is the perimeter of the semi-circle?​

Answers

Answer:

roughly 12.56 units

Step-by-step explanation:

Since the perimeter of a circle is 2*pi*r, we can divide it by two or multiply by half in order to find the perimeter of a semicircle

half of the diameter is the radius, so 8/2 =4, r=4

Plug in what we know...

C=2*pi*4

Solve

2*3.14*4

25.12

divide by 2

25.12/2=12.56

12.56 units is the perimeter

Answer:

Approx. 20.566 units

Step-by-step explanation:

Find the circumference of the whole circle first by doing:

C = 2πr

r = 4 (8 divided by 2)

C ≈ 25.133

Then divide that by two because a semi-circle is half a circle:

12.566

Then add 8 (diameter) to that number for the open side.

Hope this helps :)

HELP ASAPPPP USE THE PHOTOOOOO MARKING BRAINLIEST

Answers

the correct answer is A. you just substitute the t value in to get the second number
A is correct.

(-3)(-3) - 3 = 9-3 = 6

I can do the others, but A is the only one with that first answer correct

select all the statements that are true about square EFGH.​

Answers

Answer:

sorry but theres no answer to that if we can't see the square :|

Step-by-step explanation:

Answer:

Step-by-step explanation:

a) 25.8
b) 36.8
c) 64.2
d) 42.0​

Answers

Answer:

y = 25.8

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

cos y = adjacent/ hypotenuse

cos y = 18/20

Take the inverse cos of each side

cos ^-1 (cos y) = cos^-1(18/20)

y =25.84193276

Rounding to the nearest tenth

y = 25.8

Which expression is equivalent to
7x+4X^2- 5x?

A 4x^2+ 10x

B 2x + 4x^2

C 2x - 4x^2

D 4X^2 - 2x

Answers

Answer:

B

Step-by-step explanation:

Combine like term.

Hers 7x and (-5x) are like terms

7x + 4x² - 5x = 7x - 5x + 4x²

                    = 2x + 4x²

Please help me with trigonometry and law of sines I’m being timed and really need the help

Answers

Step-by-step explanation:

cosA = AC² + BC²- AB² / 2 • AC • BC

cos A = 13.5²+23.9²-12.7²/2• 13.5 • 23.9

Please help me need ASAP

Answers

Answer:

3)Quadratic

Step-by-step explanation:

Brainliest?

Selvi deposited RM8 000 in a fixed deposit
account with a simple interest of 3.5% per annum
for a term of a year. Calculate the amount of
Selvi's money at the end of the term.​

Answers

Step-by-step explanation:

Hope it helped

Pls mark BRAINLIEST

Help !! Asap!! Please

Answers

Answer:

4

Step-by-step explanation:

so 8*6=48, so we know that (4*6)+(_*6) should equal 48.

4*6=24

subtract 24 by 48 and we get 24.

now you probably know that it equals 4, but to be sure, divide 24 by 6, and you'll get 4.

Answer:

From top to bottom:

1st box: 4

2nd box: 24

3rd box: 48

Step-by-step explanation:

So, based on my knowledge, you are learning the Distributive probability. So, what the Distributive property does is it basically allows to distribute the one of the numbers in the multiplication problem. In this problem, we can see that the 8 is being distributed into two groups of 4 to make (4 * 6) + (4 * 6). Then, we solve the things in the two parenthesis, making 24 + 24. Now, all we have to do is add 24 + 24, making 48.

pls help me !! will mark brainliest... i just need you to solve for m<1 and m<7 !! thanks !!

Answers

Step-by-step explanation:

=( n-2)180

= ( 4 - 2 )180

= 360

So, 144 + 90 + m<2 +m<1 = 360

144 + 90 + 85 + m<1 = 360

319 + m<1 = 360

m<1 = 360 - 319

m<1 = 41

their is an unknown angle so let's call it x

let's find x first ( m<6=49)

x + m<6 = 180

x + 49 = 180

x = 180 - 49

x = 131

Now let's find m<7

m<7 + 38 + m<4 + x = 360

m<7 + 38 + 85 + 131 = 360

m<7 + 254 = 360

m<7 = 360 - 254

m< 7 = 106

$77 at 16% for 6 months


What is the difference between the total amount in the account if you did simple and compound interest?

Answers

Answer:

$0.231

Step-by-step explanation:

Given data

P= $77

r= 16%

t= 6 months= 0.5 years

For simple interest

A= P(1+rt)

A=77(1+0.16*0.5)

A= 77(1+0.08)

A= 77*1.08

A= $83.16

For compound interest

A=P(1+r)^t

A= 77(1+0.16)^0.5

A= 77(1.16)^0.5

A= 77*1.077

A= $82.929

The difference is

=83.16- 82.929

=$0.231

PLEASE HELP ILL GIVE BRAINLIEST

Answers

Answer:

2/3

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

What is the sum?
3
2.

Answers

The sum of the question is 5.

The equation of a line is y= -3x - 18. What are the coordinates of the point on the
line when the value of yis 3?

Answers

Answer:

-7

Step-by-step explanation:

3=-3x-18

3x=-18-3

3x=-21

x=-7

Justin is starting his own laundry business. Justin thinks he will do a better job than his competitors, so he thinks he can charge $15.16 per hour. If he knows he will only be able to work 50 hours per week, how much money will he earn each week?

Answers

Answer:

$758 per week

Step-by-step explanation:

15.16 x 50 = 758

Answer:$758 per week

Step-by-step explanation:Answer:15.16 x 50 = 758

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