-7-(-2)
=> -7+2
=> -5
Hope it helps!
Answer: -5
Step-by-step explanation: In order to answer this question you need to remember that subtracting a negative is like adding a positive. So whenever you see something like -7 - (-2) its the same thing as -7 + 2. Just replace the two negative signs with a positive one.
Determine the DOMAIN and RANGE from the graph
Given:
The graph of a function.
To find:
The domain and range of the function.
Solution:
We have, the graph of a function and we need to find the domain and range of the function.
We know that, domain is the set of input values (x-values) and range is the set of output values (y-values).
From the given graph it is clear that function is defined for all values of x except x=0 because as x tends to 0 the function tends to negative or positive infinite. So, domain can be any real number except 0.
[tex]Domain=R-\{0\}[/tex]
[tex]Domain=(-\infty,0)\cup (0,\infty)[/tex]
From the given graph it is clear that the value of function can be any real number except y=0. So, range can be any real number except 0.
[tex]Range=R-\{0\}[/tex]
[tex]Range=(-\infty,0)\cup (0,\infty)[/tex]
Therefore, the correct option is B.
How many candles did Cassie sell?
Answer:
it is 25
Step-by-step explanation:
98. What is the sum of the first 27 terms in the arithmetic series 25 +19+13 + ...?
Answer:
sum of the first 27 terms = -1431
Step-by-step explanation:
arithmetic series sum of the first n terms formula:[tex] s_{n} = \frac{n}{2} (2a + (n - 1)d)[/tex]
n = 27 terms
first term, a = 25
common difference, d = 19 - 25 = -6
substitute the values into the formula
[tex] s_{27} = \frac{27}{2} (2(25) + (27 - 1)( - 6))[/tex]
[tex] s_{27} = 13.5(50 + 26( - 6))[/tex]
[tex] s_{27} = 13.5(50 - 156)[/tex]
[tex] s_{27} = 13.5( - 106)[/tex]
[tex]s_{27} = - 1431[/tex]
Gill had less money than Roddy had
After Roddy spent 40% of his money,
he had $14 less than Gill. How much
money did Gill initially have?
Answer:
50
Step-by-step explanation:
Answer: the answer is 50
Step-by-step explanation:
Find the equation of the line perpendicular to y = -4x + 3 that also interacts the point (8,1)
Answer:
The answer is "[tex]y = \frac{1}{4}(x-4)[/tex]".
Step-by-step explanation:
Given:
[tex]Line = y= -4x+3 \\ \\point= (8,1)[/tex]
The formula for the standard Equation of a line:
[tex]\to y= mx +c[/tex]
compare the above line value:
[tex]m= -4\\\\c= 3[/tex]
When a line is perpendicular so, the m value is: [tex]= \frac{1}{4}[/tex]
[tex]\to m_1 \times \m_2 = -1\\\\\to -4 \times m_2= -1\\\\\to m_2 = \frac{-1}{-4}\\\\\to m_2= \frac{1}{4}[/tex]
Line equation when one point and m is given:
[tex]\to (y-y_1) = m (x- x_1)\\\\\to (y-1) = \frac{1}{4}(x- 8)\\\\\to 4y-4 = x- 8\\\\\to 4y = x-8+4\\\\\to 4y = x-4\\\\\to y = \frac{1}{4}(x-4)\\[/tex]
Consider quadrilateral ABCD and point in the figure below.
Graph r(135 degrees,E) (ABCD). Which graph (next page) shows the pre-image ABCD and the image A'B'C'D'?
Answer: Its A
Step-by-step explanation: I just took this test plz mark brainlist
The two boxes shown are cuboids.
Work out how many of the smaller boxes you would need to completely fill the larger one.
Answer:
250 smaller cuboids
Step-by-step explanation:
Given
Small and Big cuboids
Required
Number of smaller cuboids in the big one
To do this, we calculate the volume of both cuboids.
[tex]Volume = Length * Width * Height[/tex]
For the small cuboid
[tex]V_1 = 10cm * 3cm * 4cm[/tex]
[tex]V_1 = 120cm^3[/tex]
For the big cuboid
[tex]V_2 = 50cm * 30cm * 20cm[/tex]
[tex]V_2 = 30000cm^3[/tex]
The number of small in big is then calculated by diving the volumes
[tex]Number = \frac{V_2}{V_1}[/tex]
[tex]Number = \frac{30000cm^3}{120cm^3}[/tex]
[tex]Number = \frac{30000}{120}[/tex]
[tex]Number = 250[/tex]
Hence, there are 250 small cuboids in the large one
Winter math packet
Answer:
32. C
34.C
36. 2
Answer:
32. C, 34. C, 35. C, 36. 2 miles
Step-by-step explanation:
32. C because you can see the ratio is 7:1. There is only one answer that has a ratio of 7:1 which is C
34. C because the ratio of batches of cookies to cooking oil is [tex]1:\frac{2}{3}[/tex] since you want 4 batches of cookies, multiply 4 by [tex]\frac{2}{3}[/tex] to get C
35. C because the ratio of butter to sauce is [tex]\frac{2}{3}:2\frac{1}{2}[/tex] multiply [tex]\frac{2}{3}[/tex] by 4 to get C
36. 2 miles because the ratio of miles to hours is [tex]\frac{1}{2} :\frac{1}{4}[/tex] multiply [tex]\frac{1}{2}[/tex] by 4 to get 2 miles
Judy wants to buy juice boxes at the lowest unit rate. Which is the best
buy?
(A) a single juice box for $1.00
(B) a package of 3 juice boxes for $3.00
(C) package of 6 juice boxes for $5.46
(D) a package of 10 juice boxes for $9.20
Answer:
i think it is d, the pack of 10
Step-by-step explanation:
every juice box is 1 dollar, so the pack of 6, has one box at 46 cents, and the box of 10, has one box at the price of 20 cent
buying a 6 pack, and 4 one packs, will give you ten, but a bit more expensive. hope it helped!
Omar needs to solve the problem 2,406 divided by 6. In what place would he put the first digit of the quotient?
Answer:
The hundreds place
Step-by-step explanation:
If you divide it
it would start out on the 4
Which is the hundreds Place
L Pretest: Unit 3
Question 6 of 20
If f(x) = 4x - 3 and g(x) = x + 4, find (f - g)(x).
CA. 5x - 7
B. 3x-7
C. 5x-1
OD. 7 - 3x
SUBMIT
The solution is : (f + g)(x) = x² + 4x - 4 ⇒ B, is the required function.
What is function?Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable.
here, we have,
Let us solve the question
∵ f(x) = 4x + 4
∵ g(x) = x² - 6
→ We need to find (f + g)(x) which means f(x) + g(x)
∴ (f + g)(x) = f(x) + g(x)
∵ f(x) + g(x) = (4x + 2) + (x² - 6)
∴ f(x) + g(x) = 4x + 2 + x² - 6
→ Add the like terms
∵ f(x) + g(x) = 4x + x² + (2 - 6)
∴ f(x) + g(x) = 4x + x² + (-4)
→ Remember (+)(-) = (-)
∴ f(x) + g(x) = 4x + x² - 4
→ Arrange the terms from greatest power of x
∴ f(x) + g(x) = x² + 4x - 4
∴ (f + g)(x) = x² + 4x - 4, is the required function.
To learn more on function click:
brainly.com/question/21145944
#SPJ7
What is the average time it took for the tablet to dissolve in room temperature water?
ANSWER FOR 30 POINTS!!!
Answer:
It may take 20 to 30 seconds.
Step-by-step explanation: Hope this helped
brainliest?
The average time it took for a tablet to dissolve in water that was 22 °C in temperature was 28.3 seconds.
What is a drug?Any substance that, when consumed, alters the physiology or psychology of an organism qualifies as a drug.
What are the factors that affect the solubility of drug?
The properties of the API (active pharmaceutical ingredient) such as
solubility, wettability, particle size, surface area, morphology, the formulation's composition hardness, manufacturing process.To learn more about tablet, pharmaceutical, and physiology here,
https://brainly.com/question/14551883
#SPJ2
The measure of one angle of a triangle is 105°. What do you know about the measures of the other two angles? Check all
that apply.
O Both angles are acute.
O The sum of the measures of the two angles is 75°.
O The sum of the measures of the two angles is 155°.
OOne of the angles is a right angle.
O The measure of neither angle is more than 75°.
O The measures of the other angles must be 105° too.
D The measure of one of the other angles equals 75°.
O The measure of one of the other angles must be 45°.
Save and Exit
Submnit
Answer:
both angles are acute
Step-by-step explanation:
I'll give you bransit, if you answer this :]
Answer:
look below
Step-by-step explanation:
I think the answer is for A 12mm because there is a -3 in the spot and you have 15 mm and for B 17mm because you still have that 15mm but this time you have a +2
I think this might be the answer I am kind of good at math but I don't really know this one sorry if I get it wrong
) Find the distance between the boll
-owing pairs of points
i) (2, 3) and (41)
[I took this from the internet, but hope it helps!]
I need help please!!!!!!
Answer:
uuuhh...
Step-by-step explanation:
HELP ASAP PLEASE THIS QUESTION IS ABOUT FUNCTIONS SO IF U KNOW HOW TO DO FUNCTIONS PLEASE HELP I HAVE ASKED THIS LIKE MAYBE 4 TIMESSSSS :(
ALSO DONT PUT A RANDOM ANSWER AND TAKE THE POINTS I REALLY NEED HELP
Answer:
Domain: -3<=x<4
Range:-1<=y<-3
(can I get brainliest please)
Answer:
range: [-3,-1) domain: [4,-3); idrk know the second one srry.
Step-by-step explanation:
PLEASE HELPPP I REALLY NEED IT I DONT UNDERSTAND PART C PLEASE SOMEONE EXPLAIN TO ME AND I WILL GIVE BRAINLEST THANK YOU SM!!!! PLEASE I REALLY DONT UNDERSTAND
Answer:
Step-by-step explanation:
12 miles is the ride distance
the guy is able to travel at 6 yard per second
Question C asks how many minutes will the trip take
first we have to convert miles to yards....
there are 1760 yards in one mile
12*1760= the total distance to be traveled.. in yards..
21,120 yards
Next we'll figure out the time to travel that distance.. but we're give a rate of travel in seconds... 6 yards every second
so divide the total yards by the seconds.. that are take to travel every second.. in on second he goes 6 yards. so divide the total yards by 6 for each second of travel
21,120 / 6 = 3520 seconds to go 12 miles or the 21,120 yards.. it's the same distance in different units
then.. b/c the question is asking for minutes divide the 3,520 seconds by 60.. b/c that's how many seconds are in one minute
3,520 / 60 = 58.6666666666666 minutes or 58 minutes and 2/3 of one minute.... make sense?
Answer plz I will give correct answer as brainliest
Answer:
It is a triangle
Step-by-step explanation:
This is called Triangle Inequality. We can use its theorem to identify whether these three sides work or not. The Theorem states, "the sum of the smallest lengths of any two sides must be greater than or equal to the length of the remaining side." If we look at the sides, 11,4,7, we can conclude that these are applicable sides for a triangle because the sum of the two smallest lengths, 4 and 7, are the same value as 11. Therefore, these measurements are a triangle.
What is the value of Line GJ?
a
10
b
30
c
1
50
Answer:
10
Step-by-step explanation:
Which statement about conduction is true?
1.Conduction uses electromagnetic waves.
2.Conduction transfers energy from one particle to another.
3.Conduction produces currents in a heated pot of water.
Answer:
statement 2, conduction is the transfer of heat through direct contact
through: (-4, -3) and (-3, -2)
Answer: x + 1
Hope this helps :)
Answer:
x+1
Step-by-step explanation:
I hope you have a merry christmas!
Joan kicked a soccer ball. The height of the ball, h, in metres, can be modelled by h =-1.2x^2 + 6x , where x is the horizontal distance, in metres, from where she kicked the ball.
Answer:
7.5m
Step-by-step explanation:
Since we are not asked what to look for we can find the maximum height reached by the ball
The ball reaches its maximum height when dh/dx = 0
dh/dx = -2.4x + 6
0 = -2.4x + 6
2.4x = 6
x = 6/2.4
x = 2.5
Get the max height
Recall:
h =-1.2x^2 + 6x ,
h(2.5) = -1.2(2.5)^2 + 6(2.5)
h(2.5) = -1.2(6.25)+15
h(2.5) = -7.5 + 15
h = 7.5
Hence the maximum height reached by the ball is 7.5m
The area of a square is 36cm what is the length of one side?
Answer:
6cm
Step-by-step explanation:
The area of a square is s^2, where s is the length of one side.
s^2 = 36cm^2
s = [tex]\sqrt{36\\}[/tex]cm
s = 6cm
Answer:
Step-by-step explanation:
Area of square = 36 cm²
Side² = 36
Take square root,
√side² = √36 = √6*6
side = 6 cm
A student is standing 20 feet away from the base of a tree. He looks to the top of the tree at a 50 degree angle of elevation. His eyes are 5 feet above the ground. Using cos 50= .64, what is the height of the tree to the nearest foot?
Answer:
23.84 feet
Step-by-step explanation:
Solving this question above, we using Trigonometric function tangent = Opposite/Adjacent
Opposite side + h = Height of the tree
We are told that:
A student is standing 20 feet away from the base of a tree. He looks to the top of the tree at a 50 degree angle of elevation. His eyes are 5 feet above the ground.
20 feet = Adjacent side = Distance form the tree
tan 50 = (h+5)/20
Cross Multiply
h + 5 = 20 × tan50
h = 20tan50 - 5
h= 18.835071852
h =18.84
Therefore the height of the tree is calculated as:
18.84+5 feet
=23.84 feet
Answer:
24 feet
Step-by-step explanation:
EZ
Can you help me out with this question pls
5. Twice the sum of a number and -38 amounts to 20. (Hint: needs parentheses)
6. Alex sold his used lawn tractor and accessories for $210. If he received twice as much money for the lawn
tractor as he did for the accessories, find how much money he received for the lawn tractor. Write an
equation. Then solve the equation.
7. The cost of a television with remote control is $649. This amount is $125 more than the cost without remote
control. Find the cost of the television without remote control. Write and equation. Then solve the
equation.
Answer:
5Twice the sum of a number and -38 amounts to 20. (Hint: needs parentheses)
6. Alex sold his used lawn tractor and accessories for $210. If he received twice as much money for the lawn
tractor as he did for the accessories, find how much money he received for the lawn tractor. Write an
equation. Then solve the equation.
7. The cost of a television with remote control is $649. This amount is $125 more than the cost without remote
control. Find the cost of the television without remote control. Write and equation. Then solve the
equation.
The values from the given situations are required.
The number is 48.
Cost of lawn tractor is $140.
Cost of TV without remote is $387.
Let [tex]x[/tex] be the number
[tex]2(x+(-38))=20\\\Rightarrow x-38=\dfrac{20}{2}\\\Rightarrow x=10+38\\\Rightarrow x=48[/tex]
The number is 48.
[tex]x[/tex] = Cost of lawn tractor
[tex]y[/tex] = Cost of accessories
Cost of lawn tractor is twice of the accessories
[tex]x=2y[/tex]
Total cost of lawn tractor and accessories is $210
[tex]x+y=210\\\Rightarrow 2y+y=210\\\Rightarrow y=\dfrac{210}{3}\\\Rightarrow y=70[/tex]
Cost of lawn tractor is [tex]x=2y=2\times 70=140[/tex]
[tex]x[/tex] = Cost of TV
[tex]y[/tex] = Cost of remote
Cost of TV and remote is $649
Cost is $125 more than the cost without remote control
[tex]x+y=649[/tex]
[tex]x-y=125[/tex]
Adding the equations we get
[tex]2x=649+125\\\Rightarrow x=\dfrac{649+125}{2}\\\Rightarrow x=387[/tex]
Learn more:
https://brainly.com/question/15125547?referrer=searchResults
Help!!! Find the length of X
Answer:
x=6.5
Hope my answer is helpful to you
divide 3/4 divided ny 2/5
Answer:
1.875
Step-by-step explanation:
I used a calculator
Answer:
1.36
Step-by-step explanation:
if 25% of a sum is Rs 2500. what is the 20% of the sum?
Answer:
25/100x=2500
x=250000/25
x= 10000
20/100×10000=y
2000