After Evaluating -1-(-z) when z=-2, the result of the given expression would be 1.
What is an expression in mathematics?In mathematics, an expression is a combination of numbers, variables, and operators (such as +, -, *, /, etc.) that represents a value or a computation.
An expression in mathematics is made up of a combination of variables, numbers, and functions (such as addition, subtraction, multiplication or division etc.) In some ways, phrases and expressions are similar. While a phrase by itself in language may contain an action, it does not constitute a complete sentence.
Arithmetic operators and numbers make up a mathematical numerical expression. No equality or inequality symbols, or unidentified variables, are present. Indeterminate variables, numbers, and arithmetic operators make up an algebraic expression. Neither equality nor inequality symbols can be found in it.
Evaluating the expression -1-(-z) when z=-2:
-1-(-z) = -1-(-(-2)) = -1+2 = 1
Hence, the result of the given expression would be 1.
To learn more about the expression in mathematics, visit:
https://brainly.com/question/14083225
#SPJ1
the cricket team and the football team are sharing the field for their practices today. the cricket team meets for practice every 2 days, and the football team meets every 4 days. How much days from now will they have to share the field again?
Answer:
4 days
Step-by-step explanation:
Crickets team = every 2 days
Football team = every 4 days
How much days from now will they have to share the field again?
Find the lowest common multiple of 2 days and 4 days
2 days = 2, 4, 6, 8, 10, 12, 14, 16, 18, 20
4 days = 4, 8, 12, 16, 20
The lowest common multiple of 2 days and 4 days = 4 days
Therefore, if the football team and Crickets team share the field to practice today, they will have to share the field again in the next 4 days
Solve for x
x = 5
x = 18
x= 30°
x = 36
Answer:
x=36
Step-by-step explanation:
5x=180
x=180/5=36
Answer:x=36
Step-by-step explanation:
Took the test and got it right!
Find the area of the triangle.
12 ft 13 ft
The area of the triangle is
ft2.
Answer:
156 ft
Step-by-step explanation:
area formula is:
length x width
(A= l*w)
12 x 13 = 156
A landscaping company placed two orders with a nursery. The first order was for 13 bushes and 4 trees, and totaled $327.50. The second order was for 6 bushes and 2 trees, and totaled $142.96. Sam tried to use system of equation to solve the problem.
Answer:
Step-by-step explanation:
A landscaping company placed two orders with a nursery. Sam tried to use system of equation to solve the problem.
Let us represent
Cost of bushes = x
Cost of trees = y
The first order was for 13 bushes and 4 trees, and totaled $327.50.
Hence
13x + 4y = 327.5......Equation 1
The second order was for 6 bushes and 2 trees, and totaled $142.96.
Combined both Equations
13x + 4y = 327.5......Equation 1
6x + 2y = 142.96 ........ Equation 2
We solve using Elimination method
We Multiply Equation 1 by 2 and Equation 2 by 4 to Eliminate y
26x + 8y = 655 ..... Equation 3
24x + 8y = 571.84 ..... Equation 4
We substract Equation 4 from Equation 3
2x = 83.16
x = 83.16/2
x = $41.58
IM GIVING BRAINLIEST!!PLEASE HELP!!I PROMISE!!
Answer:
i think it's b sorry if it's wrong
Step-by-step explanation:
What is the length of the missing leg
Answer:
[tex]42[/tex]
Step-by-step explanation:
Remember, [tex]a^{2} + b^{2} =c^{2}[/tex]
This time, it's [tex]56^{2}+b^{2}=70^{2}[/tex]
[tex]70^2-56^2[/tex]=[tex]1764, sq rt[/tex] of [tex]1764=42[/tex]
Answer:
I think it's 42
Step-by-step explanation:
This recipe makes 5 portions of porridge. Complete the amount of each ingredient that is needed to make just 2 portions. Recipe: Serves 5 200 g oats 1.2 L milk 60 g sugar
Answer:
For 2 portions, our Ingredients include
80g of oats, 0.48L of milk and 24g of sugar
Step-by-step explanation:
For 5 portions of ingredients
We need 200g of oats, 1.2L of milk and 60 g of sugar
Hence, for 2 portions of Ingredients, the measure of ingredients is calculated as:
For Oats
5 portions = 200g oats
2 portions = x
Cross Multiply
5x = 2 × 200g
x = 2 × 200g/5
x = 80g of oats
For Milk
5 portions = 1.2L milk
2 portions = x
Cross Multiply
5x = 2 × 1.2L
x = 2 × 1.2L/5
x = 0.48 L of milk
For Sugar
5 portions = 60g of sugar
2 portions = x
Cross Multiply
5x = 2 × 60g
x = 2 × 60g/5
x = 24g of sugar
Therefore for 2 portions, our Ingredients include
80g of oats, 0.48L of milk and 24g of sugar
can you help me please
9514 1404 393
Answer:
26, 37, 40, 48
Step-by-step explanation:
Whole numbers between 20 and 50 will have 10s digits in the range 2–5.
When 4 is added to these numbers, we get ...
2+4 = 6
3+4 = 7
4+4 = 8
5+4 = 9
When 4 is subtracted from these numbers, we get ...
2-4 = -2
3 -4 = -1
4 -4 = 0
5 -4 = 1
__
The numbers we can make using the given 10s digits and their corresponding 1s digit(s) are ...
26, 37, 40, 48
__
We note that any number with a 10s digit of 5 and a 1s digit other than 0 will be out of range.
How do I solve this finding the first four of the sequence?
Answer:
- 7, - 3, 1, 5
Step-by-step explanation:
Using the recursive rule and a₁ = - 7, then
a₂ = a₁ + 4 = - 7 + 4 = - 3
a₃ = a₂ + 4 = - 3 + 4 = 1
a₄ = a₃ + 4 = 1 + 4 = 5
The first four terms are - 7, - 3, 1, 5
During the winter registration 72 athletes signed up to play basketball. If they have 6 even teams, how many players are on each team
Answer:
They have 12 players on each team because 72 divided by 6 equals 12.
Niko put some cupcakes in the oven at 8:55 they needed to bake for 25 minutes when should he take them out
Answer: 9:20 am.
Step-by-step explanation:
The cupcakes are meant to bake for 25 minutes and they were put in the oven at 8:55.
To find the time to take them out, add 25 minutes to 8:55 am.
= 8:55 + 25
Add the 5 to 55 so that 8:55 becomes 9:00.
Add the remaining 20 minutes so that 9:00 becomes 9:20 am
= 8:55 + 25
= 9:20 am
Use the box plot. It shows the number of days on the market for single family homes in a city. What are the third and first quartiles of the data? a. 40, 30 b. 140, 80 c. 140, 0 d. 80, 30
Step-by-step explanation:
Box plots (also called box-and-whisker plots or box-whisker plots) give a good graphical image of the concentration of the data. They also show how far the extreme values are from most of the data. A box plot is constructed from five values: the minimum value, the first quartile, the median, the third quartile, and the maximum value. We use these values to compare how close other data values are to them.
To construct a box plot, use a horizontal or vertical number line and a rectangular box. The smallest and largest data values label the endpoints of the axis. The first quartile marks one end of the box and the third quartile marks the other end of the box. Approximately the middle 50 percent of the data fall inside the box. The “whiskers” extend from the ends of the box to the smallest and largest data values. The median or second quartile can be between the first and third quartiles, or it can be one, or the other, or both. The box plot gives a good, quick picture of the data.
Can you guys help me
The problem is in the picture
Teniendo en cuenta que tg 45°=1, deduce el valor de sen 45° y de cos 45° mediante las relaciones fundamentales.
Answer:
the value is 0.707
Step-by-step explanation:
The computation is shown below:
Tan (x) = sen (x) ÷ cos (x)
Tan 45° = sen 45° ÷ cos 45° = 1
Now
Sen^2 (x) + cos^2 (x) = 1
Sen^2 (x) + sin^2 (x) = 1 (As sen (x) = u)
2u^2 = 1
u = √1 ÷ √2
= √2 ÷ 2
= 0.707
Hence, the value is 0.707
How many unit cubes are to make a model of a rectangular prism that is 7 units long, 2 units wide, and 5 units tall?
Answer:
70 unit cubes
Step-by-step explanation:
How many unit cubes are to make a model of a rectangular prism that is 7 units long, 2 units wide, and 5 units tall?
Step 1
We have to find the volume of the rectangular prism
The formula = Length × Width × Height
= 7 units × 2 units × 5 units
= 70 cubic units
Step 2
It is important to note that:
The volume of a unit cube is one cubic unit.
Volume of the rectangular prism = 70 cubic units
The number of unit cubes that would make the model above = 70
1 cubic units = 1 unit cube
70 cubic units = x
x = 1 × 70
x = 70 unit cubes
Which correctly lists three forms of frozen water?
dew, frost, rain
frost, hail, sleet
hail, rain, sleet
rain, dew, frost
Answer:
B, because all the other answers have rain in them and rain isn't frozen.
Hope this helped!
P. S. : Can I get brainliest please?
There are 4 boys and 16 girls planning the next school dance. What is the ratio of boys to girls planning the school dance?
Answer:
1 : 4
Step-by-step explanation:
If you simplify the amount of boys over girls, you get 1/4.
convert 36 base seven to base five
Find the measure of the indicated arc
Answer:
arc LMN = 210°
Step-by-step explanation:
The inscribed angle LQN is hal the measure of its intercepted arc, that is
arc LMN = 2 × 105° = 210°
help pls I will thank
Answer:
y=4 cos (x)
Step-by-step explanation:
y=4 cos (x)
Lacey has a pet fish in a fish tank. The bottom of the tank has dimensions of 75 cm and 35 cm. She noticed that the water in the tank is 2 cm below the minimum line labeled on the tank. How much water does Lacey need to add to the fish tank to raise the water level up to the minimum line?
Answer:
Lacey need to add 5250 cubic centimeter of water into the fish tank to raise the water level up to the minimum line
Step-by-step explanation:
The bottom dimension of the tank is 75 cm and 35 cm
Water in the tank is 2 cm lower than the minimum line of the tank.
In order to raise the water in tank above the minimum level, we need to add 75 cm * 35 cm * 2 cm
Hence, the total water to be added is
[tex]75 *35 *2 = 5250[/tex] cubic centimeter
Pleaseeeee helppppp will mark you as brainlist and don’t put a link for the answer just put the answer down
Sketch a graph of the following polynomial functions. Show all work!!
g(x) = 2x3 + 14x2 − 2x − 14
Answer:
which one?
Find the Roots (Zeros)
Factor
Use the Rational Roots Test to Find All Possible Roots
Identify the Zeros and Their Multiplicities
Graph
Find the Roots/Zeros Using the Rational Roots Test
Find the x and y Intercepts
Step-by-step explanation:
Answer:
here u go
Step-by-step explanation:
gx=2x3+14x2−2x−14
Step 1: Divide both sides by x.
gxx=2x3+14x2−2x−14xg=2x3+14x2−2x−14x
Answer:
g=2x3+14x2−2x−14x
x - 3y=-12
-9x - y = 24
Solve plzzz
Answer:
y = -9x - 24
x = -27x - 84
Step-by-step explanation:
Tess took a total of 36 quizzes over the course of 4 weeks. After attending 10 weeks of school this quarter, how many quizzes will Tess have taken if this rate stays constant?
Answer:
90 Test
Step-by-step explanation:
so if you do 36/4 that means 9 if the rate is constant then you do 9 x 10 = 90
Hoped this helped
Alfred bought six binders at $4.99 each. He had a coupon for $2 off. His mom paid for half of the reaming cost. What did alfred pay
Answer:
13.97
Step-by-step explanation:
First,you multiply 4.99 times 6 since he bought six binders which equals to 29.94
Since he had a coupon for 2 dollars off,you subtract 2.00 from 29.94 which equals to 27.94
Lastly,you divided 27.94 by 2 since Alfred's mom paid for half of the remaining cost,resulting in the answer of 13.97.
Hope this helps and good luck!
Expand logarithm equations
Answer:
[tex] log_{2}(x) + log_{2}(y) + log_{2}(z)[/tex]
Step-by-step explanation:
[tex]5 log_{2}(xyz)^{ \frac{1}{5} } \\ \\ = 5 \times \frac{1}{5} log_{2}(xyz) \\ \\ = log_{2}(xyz) \\ \\ = log_{2}(x) + log_{2}(y) + log_{2}(z)[/tex]
Please help me i need to turn this in
Answer:
(I dont know which way your supposed to do it)
+4 +4
3x = 18
÷3 ÷3
X = 6
The angle of depression of a boy from a top of a vertical Cliff 120 high is 22.7 . Find the distance of the boy from the base of the Cliff
Answer:
wowwowowowowowowwowowowwowowow
What is a division sign beside ‘/‘?
Answer:
Division can be represented with ÷ as well.