Mathematics High School

Which expression is equivalent to −1.3+(−4.9)+(−2.6) ?

a −(1.3−4.9)+(−2.6)
b −1.3+(4.9+2.6)
c (1.3+4.9+2.6)
d −1.3−(4.9+2.6)

Answers

Answer 1
The answer for this question would be D) -1.3 - (4.9 + 2.6) or the fourth option because the solution for this equation is the same as -1.3 + (-4.9) + (-2.6) which both = -8.8. So since they both have the same result, both expressions are equivalent.
Answer 2
Final answer:

The equivalent expression to -1.3+(-4.9)+(-2.6) is -1.3 - 4.9 - 2.6, which is represented by option d, -1.3 - (4.9 + 2.6).

Explanation:

The subject of this question is a mathematical calculation, more specifically adding negative numbers.

To answer the student's question about which expression is equivalent to -1.3+(-4.9)+(-2.6), we first need to understand that adding a negative number is the same as subtraction. Therefore, the expression can be written as -1.3 - 4.9 - 2.6.

If we look at the options:

Option a, −(1.3−4.9)+(−2.6) is not correct because subtracting a negative number should be the same as adding; Option b, −1.3+(4.9+2.6) is incorrect as well; Option c, (1.3+4.9+2.6) is not equivalent because the signs of all numbers are positive; Option d, −1.3−(4.9+2.6) is indeed the correct option, because it represents the operation of subtraction as originally described.

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Related Questions

Let g(x) be the reflection of f(x) = x 2 + 3 in the x-axis. What is the function rule for g(x)?

A.
g(x) = -x^ 2 - 3
B.
g(x) = -x ^2 + 3
C.
g(x) = x ^2 - 3
D.
g(x) = x ^2 + 3

please show your work

Answers

refelction meand g(x) would equal -(fx)

 so the answer would be C g(x) = -x^2 - 3

tenesa bought a 50 pound bag of flour for her bakery. she used 13.65 pounds of flour. how many pounds of flour are left in the bag?

Answers

answer: 36.35


work:
50 - 13.65 = 36.35
50 - 13.65 = 36.35

36 1/3 pounds of flour are left.

The following eight values represent the sale amounts over a one hour period: $10 $5 $60 $20 $15 $20 $9 $2. What is the median sales value over this period?
Select one:
a. $12.50
b. $17.63
c. $20.00
d. $31.00

Answers

The answer is C. $12.50

You're supposed to arange the numbers in order from least to greatest then you mark out the highest and the lowest number. You keep this up until either there is one or two numbers left. In this case, there are two numbers as the median. Add $10 and $15 then you divide it by two.

you are baking muffins for your class. there are 17 total students in your class and you have baked 5 muffins. write and solve an equation to find the additional number x of muffins you need to bake in order to have 2 muffins for each student. write your equation so that the units on each side of the equation are muffins per student

Answers

For your first answer 2=x+5/17 your second answer is 29. This is because "x" is the number that you need to bake which is 29. Therefore, 31/17=2

Answer:

Additional muffins required, x = 29

The equation so that the units on each side of the equation are muffins per student

                    [tex]\frac{5+x}{17}=2[/tex]

Step-by-step explanation:

Let the additional number x of muffins you need to bake in order to have 2 muffins for each student.

We have total number of students = 17

Number of muffins already baked = 5

So total number of muffins made = Number of muffins already baked + Additional muffins to be made

Total number of muffins made = 5 + x

We know that each student need to get 2 muffins

Total muffins needed = 17 x 2

Equating both

                   5 + x = 17 x 2

                        x = 34 - 5 = 29

Additional muffins required, x = 29

                 [tex]\frac{5+x}{17}=2[/tex]

This is the equation so that the units on each side of the equation are muffins per student

Let f ( x ) = 2 x − 1 , g ( x ) = 3 x , and h ( x ) = x ^2 + 1 , what is g (h ( 24 ) ) ?

Answers

h(24)= (24)^2+1
576+1= 577

g(577)= 577x3= 1731

A player's goal was to score at least 150 points this season. So far, she has scored 123 points. If there is one game left, how many points must she score to reach her goal?



A) Write an inequality that represents this word problem.

Answers

123+G[tex] \geq [/tex]150

The inequality that represents this word problem will be 150 - 123 = 27.

From the information given, the player's goal was to score at least 150 points this season but the player already has scored 123 points.

Therefore, since there is one game left, the number of points that must be scored to reach her goal will be:

= 150 - 123 = 27

Read related link on:

https://brainly.com/question/2511362

A rectangular box is to have a square base and a volume of 80 ft3. the material for the base costs 45¢/ft2, the material for the sides costs 10¢/ft2, and the material for the top costs 28¢/ft2. letting x denote the length of one side of the base, find a function in the variable x giving the cost (in dollars) of constructing the box.

Answers

The volume of a rectangular box is equal to the area of its base times the vertical height. Thus,

V = Ah = 80

Since the base is a square with side x, then the area is equal to x². Hence, we can express h in terms of x.

80 = x²h
h = 80/x²

Now, each lateral side of the rectangular box is in the shape of a rectangle with a length of h and a width of w. Hence, the equation for the total cost would be:

Total Cost = Cost per area of lower base + Cost per area of upper base + 4(Cost per area of lateral side)
Total Cost = 0.45x² + 0.28x² + 4(0.10h*x)
Total Cost = 0.73x² + 0.4hx
Since h = 80/x²,
Total Cost = 0.73x² + 0.4(80/x²)(x)
Total Cost ($) = 0.73x² +32/x

If 40% of a given number is 8, then what is 15% of the given number?

Answers

40% of a given number is 8...
0.40x = 8
x = 8 / 0.40
x = 20....so 20 is the given number

what is 15% of 20...
0.15(20) = 3 <==== ur answer

What is -3 = -15 + a

Answers

hello : 
 -3 = -15 + a
add : 15
-3 +15 = -15 +15 +a
 12 = a 
 a = 12

A radio station plays 3 1/2 minutes of commercials every 1/4 hour. At this rate, how many minutes of commercials does this radio station play in one hour?

Answers

14 minutes in one housr

If tap and bre are supplementary and bre is its own complement, find the measure of tap. explain how you arrived at your answer

Answers

Supplementary angles are those whose sum is equal to 180° while those that are complementary are those whose sum is equal to 90°. Since, we are given that bre is the complement of itself, its measure can be calculated through the equation,
                           m∠bre + m∠bre = 90°
                                   m∠bre = 45°

Then, for the relationship of bre and tap, we have the equation,
                       m∠bre + m∠tap = 180°
                        45° + m∠tap = 180°
                                m∠tap = 135°

The measure of tap is equal to 135°. 

Which is the line shown in the figure?

Answers

xz because the line connects them together.

The answer is Line XZ. The line goes through them.



Work out the equation of the line which has a gradient of 2 and passes through the point (1,4)

Answers

Answer:

The equation would be y = 2x + 2

Step-by-step explanation:

We know that the equation of a line can be represented as:

(y - y1) = m ( x - x1)

where (x1, y1) is a point that belongs to the line and m is the gradient.

For this particular problem we would have (x1,y1) = (1,4) and m = 2.

If we substitute this data in the formula we  get:

(y - y1) = m (x - x1)

y - 4 = 2(x - 1)

y - 4 = 2x - 2

y = 2x - 2 + 4

y = 2x + 2

Therefore, the equation would be y = 2x + 2

The equation of the line which has a gradient of 2 and passes through the point (1,4) is:

y = 2x + 2

What is gradient

Gradient also known as slope is the defined as

Gradient (m) = change in y coordinate / change in x coordinate

The equation of a line passing through a given point is given by the following equation:

y – y₁ = m(x – x₁)

How to determine the equation of the line passing through point (1,4)x coordinate (x₁) = 1y coordinate (y₁) = 4Gradient (m) = 2Equation =?

y – y₁ = m(x – x₁)

y – 4 = 2(x – 1)

Clear bracket

y – 4 = 2x – 2

Make y the subject by adding 4 to both side

y – 4 + 4 = 2x – 2 + 4

y = 2x + 2

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In Trevor's biology class, the students tested for bacteria on a kitchen sponge. They found that there were approximately 17,000,000 bacterial colonies on a single sponge. Express their findings in scientific notation.

17 × 106
1.7 × 106
1.7 × 107
0.17 × 108

Answers

that would be 1.7 * 10^7


Choice C

Answer:

1.7 × 10 7

Step by step explanation:

S is between T and V. R is between S and T. T is between R and Q. QV=18, QT=6, and TR=RS=SV. Find RS , QS , TS , and TV.

Answers


                                             4                     4               4
-----Q-----------------------T----------------R---------------S---------------V
      <----------6----------->
      <-----------------------------------------18--------------------------------->


QT = 6 (given)
QV = 18 (given)
TR=RS=SV (given)

Then TV = 18-6 = 12 and since TR=RS=SV , then each segment = 12/3 =4

RS = 4
QS = 14
TS =  8
and TV. = 12

A line can have as many points as possible, and multiple lines can have similar points. The values of RS, QS, TS and TV are:

[tex]RS = 4\\QS =14\\TV = 12\\TS = 8[/tex]  

S is a point between lines T and V means:

[tex]TV = TS + SV[/tex]

R is a point between lines S and T means:

[tex]TS = RS + TR[/tex]

T is a point between lines R and Q means

[tex]RQ = TR + QT[/tex]

Given that:

[tex]QT = 6\\QV = 18[/tex]

This means that Q is a point between lines QT and QV. So:

[tex]TV = QV - QT[/tex]

[tex]TV = 18- 6[/tex]

[tex]TV = 12[/tex]

[tex]TR=RS=SV[/tex] means that:

[tex]TV = TR+RS+SV[/tex]

Because [tex]TR=RS=SV[/tex], the equation becomes:

[tex]TV = TR+TR+TR[/tex]

[tex]TV = 3TR[/tex]

Substitute 12 for TV

[tex]12 = 3TR[/tex]

Divide both sides by 3

[tex]4 = TR[/tex]

[tex]TR =4[/tex]

Hence:

[tex]TR=RS=SV=4[/tex]

[tex]TS = RS + TR[/tex] gives

[tex]TS = 4 + 4[/tex]

[tex]TS = 8[/tex]

Next, we calculate the measure of QS from lines QV and SV

Point S is common between QS and SV. This means:

[tex]QV = QS + SV[/tex]

Make QS the subject

[tex]QS =QV -SV[/tex]

[tex]QS =18-4[/tex]

[tex]QS =14[/tex]

Hence, the values of RS, QS, TS and TV are:

[tex]RS = 4\\QS =14\\TV = 12\\TS = 8[/tex]  

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A rectangleâs length is 7 inches greater than its width. if the perimeter of the rectangle is 110 inches, find its length and width.

Answers

the length would be 16, the width would be 9

the development of cars has pros and cons. the car has allowed for better transportation but it is also responsible for a great deal of pollution. which activity can help reduce through pollution through the use of new technology?

A)increasing taxes on cars that pollute the most

B)making an app that allows people to share rides

C)persuading people to use existing public transportation

D)building cars that can better withstand collisions

Answers

The answer is B I think. sorry keyboard malfunction

You increase the size of a computer screen display by 20%. Then you decrease it by 20%. What is the size of the computer screen display now?

Answers

96

U almost always use 100% to start theses q off

increasing it by 20% would make it 120
20% of 120 is 24. 
subtract 24 from 120

If x+z=15x+z=15 and w+y=10w+y=10, what is the value of (3w+3y)(2x+2z)(3w+3y)(2x+2z) ?

Answers

Answer:

The value of [tex]\((3w+3y)(2x+2z)\)[/tex] squared is [tex]\(810,000\).[/tex]

Explanation:

To find the value of [tex]\((3w+3y)(2x+2z)\)[/tex], we can first simplify each factor:

[tex]\((3w+3y) = 3(w+y)\)[/tex]

[tex]\((2x+2z) = 2(x+z)\)[/tex]

Given that [tex]\(w+y = 10\) and \(x+z = 15\)[/tex] , we can substitute these values into the expressions:

[tex]\((3w+3y) = 3(10) = 30\)[/tex]

[tex]\((2x+2z) = 2(15) = 30\)[/tex]

Now, we multiply these two simplified expressions together:

[tex]\((3w+3y)(2x+2z) = 30 \times 30 = 900\)[/tex]

So, the value of [tex]\((3w+3y)(2x+2z)\) is \(900\).[/tex]

To find the value of [tex]\((3w+3y)(2x+2z)\)[/tex] squared:

[tex]\((3w+3y)(2x+2z)^2 = (900)^2 = 810,000\)[/tex]

Therefore, the value of [tex]\((3w+3y)(2x+2z)\)[/tex] squared is [tex]\(810,000\).[/tex]

you have ten boxes of ten muffins each and each muffin has ten blueberries, Use exponent to write an expression for the total number of blue berries

Answers

10^3

10×10×10

10 boxes×10 muffins×10 blueberries

A dime has the same value as 10 pennies.Marley bought 290 pennies to the bank.How many dimes did Marley get

Answers

Marley got 29 dimes. 29x10=290

Pauley graphs the change in temperature of a glass of hot tea over time. He sees that the function appears to decrease quickly at first, then decrease more slowly as time passes. Which best describes this function? It is linear because the graph decreases over time. It is linear because there is both an independent and a dependent variable. It is nonlinear because linear functions are increasing functions. It is nonlinear because linear functions increase or decrease at the same rate.

Answers

Answer:

It is nonlinear because linear functions increase or decrease at the same rate.

Step-by-step explanation:

A linear function is a function with a constant rate of change.  This means it increases or decreases at the same rate.

Since this function decreases quickly and then more slowly, it does not have a constant rate of change; it is not linear.

Answer:

D

Step-by-step explanation:

edge 23

This problem has me stock is their anyone willing to helpp

Answers

4976 million acres

15% is federally owned

 so 85% is not

multiply 4976 by 85%


4976 * 0.85 = 4229.60 million acres are not federally owned



Evaluate y5 for y = 1.
1
5
15

Answers

IF you mean y^5, then your answer will be 1
if you mean y(5), then your answer will be 5

hope this helps

Last week they share of stock gained a total of 1.64 points express this game as a mixed number in simplest form

Answers

(164/100)
=(1/16/25)
=41/25

Solve 10x-3=6x+85 give a reason to justify each statement

Answers

10x-3=6x+85
4x = 88
  x = 22

10x-3 = 6x+85

add 3 to each side

10x=6x+88

subtract 66x from each side

4x = 88

 divide 88 by 4 to get x

x - 88/4 = 22

x = 22

Multiply. (−4−7i)(3−5i)

Answers

Answer: -47-i
Explanation: Use FOIL
-4*3-4(-5i)-7i*3-7i(-5i)
Simplify and combine like terms
=-47-i
We cannot multiply this, we need to have the amount i equals. Tho, we can simplify this problem.
Simplifying the problem would equal -47 - i

I hope this helps! :>

5+4g+8=1 (g=-3;g =-1; g =2)

Answers

when g equals- 3 answer is 1

a) As a student, you are able to earn extra money by assisting your neighbors with odd jobs. If you charged $10.25 an hour for your assistance, about how many hours would you need to work to earn $8,425? Show your work.

Answers

ABout 821.95 hours. 8,425 divided by 10.25 is 821.95

Answer:

About 821.95 hours. 8,425 divided by 10.25 is 821.95

821.95 hours

8,425

10.25

_____ = 821.95

Step-by-step explanation:

edge2021

@spongebobdid91

True?

Answers

That is true because <3 and <5 are remote interior to 1
True.

Based on the exterior angle theorem, where the outside angle is the sum of the two remote interior angles

hope this helps
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