Answers
Answer:
a. True
b. False
c. True
d. False
e. False
Step-by-step explanation:
a. 2.3 + ( -2.3) = 0
b. (-3.7) + (-4.1) = -7.8
c. -2.6 - (-12/4) = 0.4
d. 5/2 + (-2.5) = 0
e. 72 - (-100) = 172
I hope this helps
Related Questions
Which set of ordered pairs represent a function?
Answers
Gwenn has a piece of ribbon that is 3 3/4 feet long. She want to cut pieces that are 5/8 feet long. How many pieces can she cut?
Answers
Hunter's class voted on whether or not to do science fair projects in groups. 30% of the 40 votes were in favor of working in groups. How many votes were in favor?
Answers
Answer:
the answer is 12
Step-by-step explanation:
An employee saved 25% of her $400 paycheck. How much money did she save?
Answers
Answer:
she had save 100 dallors
Please help using symbols, will give brainlist if correct
Answers
Answer:
(-7,4]
Step-by-step explanation:
I'm going to assume that you need this in interval form
The domain is just asking for all the possible x values
The x value that's furthest to the left is -7 and because it's an open circle we write ( instead of [
the furthest to the right the line goes is 4 and because the circle is closed it's written with ]
but it all together and get
(-7,4]
six out of eight dentists recommend crust toothpaste in a group of 156 dentists how many of them would recommend crest
A. 208
B. 147
C.117
D. 154
Answers
Answer:
117
Step-by-step explanation:
crest : 6 x19.5=117
no creast : 2x19.5=39
whole : 8/156=19.5
is 5m^3 -3m^4-7m a polynomial? State the type and degree of the polynomial.
Answers
Answer:
Yes it is a polynomial.
It is a trinomial.
The degree is 4.
Step-by-step explanation:
So polynomial is an expression that has variables, constants, and exponents. And all of these are connected through things like addition and subtraction. In this question, you have x as your variable, 0 as your constant, and 4,3,1 as your exponents.
A term is the part of the polynomial that is separated by + or - sign. So in this question, you have 5m^3, -3m^4, and -7m as your terms. Because you have three terms, therefore this is a trinomial.
The degree of polynomial is represented by the variable with the largest exponent, so in your case, 4 is your largest exponent, therefore the degree of the polynomial is 4.
Simplify the following expression 2n+6+4y+8
Answers
Answer:
2n+4y+14
Step-by-step explanation:
Answer:
So we are going to Simplify 2n+6+4y+8
First thing we add the numbers:
2n+6+4y+8=
2n+14+4y=
Which equals
2n+4y+14
Answer :
2n+4y+14
When Joseph first starts working at a grocery store, his hourly rate is $ 10 $10dollar sign, 10. For each year he works at the grocery store, his hourly rate increases by $ 0.50 $0
Answers
Answer:
[tex]y = 10+ 0.50 x[/tex]
Step-by-step explanation:
Given
[tex]Initial = \$10[/tex]
[tex]Increment = \$0.50[/tex] -- yearly
Required
Represent as a function (this is the missing part of the question)
The given details show that the question illustrates linear function
i.e.
[tex]y = b + mx[/tex]
In this case, it is:
[tex]Current\ Rate = Initial + Increment * Years[/tex]
Represent the current rate with y and the years with x.
So, we have:
[tex]y = Initial + Increment * x[/tex]
Substitute 10 for Initial and 0.5 for Increment
[tex]y = 10+ 0.50 * x[/tex]
[tex]y = 10+ 0.50 x[/tex]
(WILL MARK AS BRAINLIEST IF CORRECT) Given f(x) = –x + 6 write an equation for f(x + 3).
What is happening to the function?
a. Shift up
b. Shift down
c. Shift left
d. Shift right
Answers
The diagram shows a prism placed on a horizontal floor. The prism has height 3m. The volume of the prism is 18m^2. The pressure on the floor due to the prism is 75 Newton's/m^2. Work out the force exerted by the prism on the floor.
Answers
5 stars thx
Find the surface area of the figure below 6m 8m 8m
Answers
Answer:
160
Step-by-step explanation:
I am having trouble with helping a friend on math and the question is
1/ (9/10+1/2) in the simplest form
Answers
-10b + 5 = 7b + 5
step by step
Answers
Answer:
b = 0
Step-by-step explanation:
Let's solve your equation step-by-step.
−10b+5=7b+5
Step 1: Subtract 7b from both sides.
−10b+5−7b=7b+5−7b
−17b+5=5
Step 2: Subtract 5 from both sides.
−17b+5−5=5−5
−17b=0
Step 3: Divide both sides by -17.
−175/17 = 0/-17
0
The aspect ratio of a TV screen is the ratio of the horizontal length to the vertical height. If the TV has a diagonal of 100 cm and the aspect ratio is 4:3, then find the horizontal length and the vertical height of the TV screen.
Answers
Answer:
The horizontal length is 80 cm, and the vertical height is 60 cm.
Step-by-step explanation:
The aspect ratio is the ratio of the horizontal length to the vertical height.
We have a rectangle with sides 4 and 3. We can find the length of the diagonal.
We can use the Pythagorean theorem to find the length of the diagonal.
a^2 + b^2 = c^2
3^2 + 4^2 = c^2
9 + 16 = c^2
c^2 = 25
c = 5
The diagonal is 5 in the ratio.
The ratio of the horizontal length to the vertical height to the diagonal is
4:3:5
We multiply all the numbers in the ratio by the same unknown, x.
A ratio of 4:3:5 is the same as a ratio of 4x:3x:5x.
We are told that the diagonal is 100 cm, so we have
4x : 3x : 100,
but we already had a ratio of
4x : 3x : 5x, so
5x = 100, and we can find x.
5x = 100
Divide both sides by 5.
x = 20
Since x = 20, then the horizontal length 4x = 4(20) = 80,
and the vertical height 3x = 3(20) = 60
Answer: The horizontal length is 80 cm, and the vertical height is 60 cm.
Answer:
horizontal length=80, vertical length=60
Step-by-step explanation:
a^2 + b^2 = c^2
the tv is a 3:4:5 right triangle
the ratio is then changed from
3:4:5
to
60:80:100
because 100/5 = 20
so you multiply the original ratio by 20
(because the length of 100 that we are given is the hypotenuse of the triangle(diagonal of the tv))
Therefore,
the horizontal length is 80
the vertical lengt is 60
In a packet of 40 skittles , 30% are red . How many skittles are not red ?
Answers
Answer:
12
Step-by-step explanation:
I just did the math on how much 30% is in 40 and I got the answer 12 I hope this helps you!
if Nandi and thabo share R15,00 in the ratio 1:2 how many rands does each get
Answers
so Nandi will get R500 and Thabo will get R1000
if you meant R15.00 so if u did then Nandi gets R5 and Thabo gets R10
What is the value of the expression below when a = -2, b = 3, C = -5
[a– 2ac + 56]
Answers
Answer:
34
Step-by-step explanation:
plug the coefficients in the equation, so
-2-2(-2)(-5)+56
Distribute the -2(-2)(-5), so it equals -20
so the equation is -2-20+56
add -20+56, so -2+36
-2+36=34
34 is your answer
5/10 divided by 7/9 I NEED THIS NOW!
Answers
Answer:
0.64285714285
Step-by-step explanation:
Answer: 9/14
In decimal form it’s 0.6428571 I don’t know how to explain this hopefully it works
whats 1+1x20/2? If you get correct you get free brainliest!!!!!!!!!!
Answers
Answer:
It is 20
Step-by-step explanation:
1+1= 2*20=40
40/2=20
Answer:
I believe it is 1+10x. hope this helps!!
Select the series of steps that could be used to accurately solve 3m - 5 = 16
A. 1. subtract 5 from the left side, leaving 3m = 11
2. multiply both sides by 3, leaving m = 33
B. 1. add 5 to both sides, leaving 3m = 21
2. divide both sides by 3, leaving m = 7
C. 1.subtract 5, leaving 3m = 11
2. divide by 3, leaving 3m = 11/3
Answers
3(x + 2) = 12
Please help it’s urgent!!
Answers
Answer:
3(x+2)=12
Step-by-step explanation:
Ok, so this is simple. First you multiply the three on the outside by the x and 2 on the inside using the distributive property. Then you should get 3x (3 times x) + 6 (3 times 2). now that you have 3x+6=12, you can subtract the 6 from both sides. you should end up with 3x=6. To figure out x you should divide both sides by 3. You should end with x = 2.
3(x+2)=12
3x+6=12
3x=6
x=2
Miguel completed 24 out of 30 problems on his math test. Which represents the part of the math test Miguel completed?
Answers
Answer:
The 24
Step-by-step explanation:
The 30 represents how many problems there were in all
Hope I was Helpful!!
Ohhhhh No wait the answer is . 80 Im so sorry
B. 0.80
So, 24 out of 30 is equal to 80%.
If 100% = 1.0
Then 80% = 0.80
Hope this helps you out! Good luck. :)
7 - 5x = 10 - (6x + 7)
Pls show the steps
Answers
Answer:
x = -4
Step-by-step explanation:
Plz answer and explain
Thanks in advance:)
Answers
Answer:
A= 2
B= -1
Step-by-step explanation:
Do rise over run but make sure B is negative as it is going downwards
Answer:
A= 2 B= 9/10 (0.9)
Step-by-step explanation:
to find the gradients, we need to use the formula:
rise / run ---> which is basically counting the "boxes" in both of the x and y axis and divide them together (rise=y, run=x)
like that
A:
x axis=5 y=10 ---> then we use the formula (rise/run) 10/5= 2
B
x axis=10 y=9 ---> then we use the formula (rise/run) 9/10= 0.9
but since B is going downhill, it'll be -0.9
Select the scatter plot with the strongest association.
40
40
30
30
20
20
10
10
0
10 20 30 40 x 0 10 20 30
y
40
40
30
30
20
20
10
10
0
0
0 10 20 30 40 x
0 10 20
30
40 x
Answers
Step-by-step explanation:
The plot with the points closest to being on the same line will be the plot with the highest correlation, or strongest association.
what can be concluded from the graph
Answers
Answer:
Either B or D
Step-by-step explanation:
Which triangle is a 30°-60°-90° triangle?
10
O
5,3
15
5
5/5
10
5
10/3
15
10
5./3
Answers
Answer:
the first one
Step-by-step explanation:
What is the area of a circular dinner plate that has a diameter of 10 inches?
Answers
Answer:
I love Math anyways
The ans is in the picture with the steps how i got it
(hope this helps can i plz have brainlist :D hehe)
Step-by-step explanation:
Answer:
78.5inches²
Step-by-step explanation:
area of a circle is pie r²
so to get the radius you half the diameter
and then u do pie×5²
or 25pie which is 78.5 (rounded to 1dp)
PLEASE HELP IM BEGGING YOU I WILL GIVE BIRRELANSTAST
Answers
Answer:
A.)555 in.^2
Step-by-step explanation:
When solving these types of things, I usually like to cut it up into smaller, easier to manage shapes.
You can cut that trapezoid into two triangles and one rectangle.
Since both triangles are the same size, you don't need to divide the base and height by two, so you'll get the area of both triangles combined (which saves some work).
We know the length of the rectangle and bases of the triangle combined is 44 inches, and that the length of just the rectangle is 30 inches, so we can just subtract 30 from 44 and divide it by two for the base of a triangle.
44 - 30 = 14
14/2 = 7
Now that we filled in the information not listed, we can finally solve:
The base of one triangle is 7 inches, and the height is 15 inches.
Now, we just multiple and divide it by 2 for one triangle (it would be 52.5 inches).
But, we don't need to divide it by two because both triangles are the same size, so we can just get the sum of the area of both triangles combined by skipping that step (because triangles are half a square and two of those triangles make a full square).
7 x 15 = 105
The area of both triangles combined: 105 in.^2
Next, we need to solve the area of the rectangle. This is easy considering all you have to do is multiply 15 by 30 (length times width).
15 x 30 = 450
The area of the rectangle: 450 in.^2
Now, the final step. Addition. All you need to do is add up all the sums, and you're done.
450 + 105 = 555
The area of entire figure: 555 in.^2
NOTE: the symbol '^' represents exponents, so when you see 555 in.^2, it means inches squared (or to the power of 2)