Answer:
-75 meters
Step-by-step explanation:
First, subtract 15 from 50, since it is going up:
50 - 15
= 35
Then, add 40, since it is going back down:
35 + 40
= 75
So, the new position is -75 meters relative to sea level
First condition of submarine=50 m below the sea=-50 m
It goes up 15 m, that means we must add up 15 m.
-50 m+15 m=
15 m-50 m=-35 m (35 m below the sea)
And, then goes down 40 m, so we subtract it with 40 m.
-35 m-40 m=-75 m (75 m below the sea)
So, the right answer is 2. (-75 meters)
Thank you.
Given the function f(x) = -x^2 +7x + 6, find the interval(s) in which f(x) is decreasing.
Answer:
Step-by-step explanation:
f'(x)=-2x+7
f(x) is decreasing if '(x)<0
so -2x+7<0
or 7<2x
or 2x>7
or x>7/2
including end points f(x) is decreasing in [3/2,∞)
How do I do? What is the answer and why
Answer:
Step-by-step explanation:
∠ADE = 74 {Vertically opposite angles are equal}
∠AED + 127 = 180 {Straight line }
∠AED = 180 - 127
∠AED = 53
In ΔADE,
∠DAE + ∠AED + ∠ADE = 180 {angle sum property of triangle}
∠DAE + 53 + 74 = 180
∠DAE + 127 = 180
∠DAE = 180 -127
∠DAE = 53
What are the coordinates of point F?
D
3
B
2
С
--4
- 3
-2
-1
0
2
3
4
-1
- 2
-3
-4
Answer: Point F is at location (-4, -5)
The x and y axis meet at the origin (0,0)
Start at the origin and move 4 units to the left. This means the x coordinate is x = -4
Then move 5 units down so the y coordinate is y = -5
Put together (x,y) = (-4, -5) describes where point F is located.
Answer:
(-4-5)
Step-by-step explanation:
What is the difference between (-5) to the second power to -5 to the second power
Answer:
the negative
Step-by-step explanation:
if you do -5 to the second power it will give you -25 and if you do (-5) it will give you 25.
Write an expression to represent the product of -3 and the square of a number decreased by 8.
How many terms are in your expression?
4
3
2.
1
Answer:2
Step-by-step explanation:
The expression contains two terms .
What is expression?An expression is a sentence with a minimum of two numbers or variables and at least one math operation. This math operation can be addition, subtraction, multiplication, or division.
According to the question
The product of -3 and the square of a number decreased by 8
i.e ,
Let square number = [tex]x^{2}[/tex]
=> -3[tex]x^{2}[/tex]-8
Hence, The expression contains two terms -3[tex]x^{2}[/tex] and -8 .
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D is the midpoint of AB. If AD=2x+11 and DB=4x-5, find the value of x and AB
Answer:
x = 8
AB = 54
Step-by-step explanation:
AD = DB
2x+11 = 4x-5
11 = 2x - 5
16 = 2x
8 = x
2(8) + 11 =
16 + 11 = 27
-7 – 9x = -61
please help solve and show your work. thank you.
Answer:
Step-by-step explanation:
-7 - 9x = -61
-9x = -54
x = 6
evaluate zx-xy-7 use x=-3, y=8, and z=-9*
Answer:
44
Step-by-step explanation:
1. substitute variables with their constants
(-9)(-3) - (-3)(8) - 7
2. multiply all like terms
(27) - (-24) - 7
3. Combine all like terms
27 + 24 - 7
51 - 7
= 44
Answer:
44
Step-by-step explanation:
Evaluate z x - x y - 7 where x = -3, y = 8 and z = -9:
z x - x y - 7 = -9 (-3) - -3×8 - 7
Hint: | Multiply -9 and -3 together.
-9 (-3) = 27:
27 - -3×8 - 7
Hint: | Multiply -1 and -3 together.
-(-3) = 3:
27 + 3×8 - 7
Hint: | Multiply 3 and 8 together.
3×8 = 24:
27 + 24 - 7
Hint: | Evaluate 27 + 24 using long addition.
| 1 |
| 2 | 7
+ | 2 | 4
| 5 | 1:
51 - 7
Hint: | Subtract 7 from 51.
| 4 | 11
| 5 | 1
- | | 7
| 4 | 4:
Answer: 44
Find the volume of the cone.
Either enter an exact answer in terms of or use 3.14 for radius is 6 height is 8
Answer:
Hey there!
Cone formula: [tex]\pi[/tex]hr^2/3
Plugging in the values, we get the volume is 301.59
Let me know if this helps :)
Answer:
96π
301.59
Step-by-step explanation:
The volume of a cone can be calculated using the following formula:
[tex]V=\frac{1}{3}bh[/tex]
b is the base and h is the height. The base formula for a circle (area):
[tex]b=\pi r^2[/tex]
Insert this value into the formula:
[tex]V=\frac{1}{3}\pi r^2h[/tex]
Simplify the formula:
[tex]V=\frac{\pi r^2h }{3}[/tex]
Now insert the known values:
[tex]V=\frac{\pi(6)^2(8) }{3}[/tex]
Simplify:
[tex]V=\frac{\pi*36*8 }{3}\\\\V=\frac{288\pi }{3}\\\\V=96\pi[/tex]
The volume is 96π units³ or 301.59 units³.
:Done
Jenna calculated several numbers in her calculator. The result displayed 1.8E-4 on the calculator screen. Which equivalent number(s) does this represent? Select all that apply.
-0.00018
1.8 × 10 -4
18 × 10 4
0.00018
1800
Step-by-step explanation:
It is given that the result displayed on the calculator screen is [tex]1.8E 10^{-4}[/tex]. We need to say out of all options, which options represent the equivalent number.
[tex]1.8\times 10^{-4}=\dfrac{1.8}{10^4}\\\\=\dfrac{1.8}{10000}[/tex] .....(1)
Option (2) is correct i.e. [tex]1.8E10^{-4}=1.8\times 10^{-4}[/tex]
From eq2uation (1)
[tex]\dfrac{1.8}{10000}=\dfrac{18}{100000}\\\\=0.00018[/tex]
Option (4) is correct.
Translate and solve:
The product of a number
and -8 is more than 64
Answer:
x < -8
Step-by-step explanation:
Step 1: Translate
Product = multiplication = -8(x)
More than = >
64 = 64
Step 2: Write out inequality
-8x > 64
Step 3: Solve
x < -8
ng
In 40 baseball games, Juan's team has
scored 50 runs. If the team continues at
this rate, how many runs could the team
expect to score in 180-game season?
II
Answer:
225 runs
Step-by-step explanation:
180/40 = 4.5
50 × 4.5 = 225
What is the value of x in the equation below? Negative 3 minus (negative 8) minus (negative 2) = x –13
please make me as brainliest
Answer:
A
Step-by-step explanation:
Two co-teachers, Daniel and Mathew, have to grade a set of math journals.
Daniel grades 45% of the journals and Mathew grades 55% of them.
Mathew has to grade 121 journals. How many total journals have to be graded?
Answer:
220
Step-by-step explanation:
55 percentage of x = 121
so X = 220
as simple as that
−18+p=18 what property would be used for this
Answer:
addition property of equality
Step-by-step explanation:
−18+p=18
Add 18 to each side using the addition property of equality
−18+18+p=18+18
p = 36
PLEASE HELP!!! WILL MARK BRAINLIETST!!! THANK YOU SO MUCH!!!!
Answer:
1. x=2 2. x=23
Step-by-step explanation:
1: 7(x+3) = 39-2x
7x+21 = 39-2x
9x=18; x=2
2. 2x-5 = 1/2(3x-13)
2x-5 = 1.5x-13/2
0.5x=11.5; x=23
In the formula d = r x t, d is the distance traveled and t is the time traveled. If d = 63 and t = 9, then r =
Answer:
7
Step-by-step explanation:
D=r*t
r=d/t
r=63/9
r=7
Point estimate is Select one: a. A statistical that estimates a population parameter b. A range of possible values for a population parameter. c. Always equal to the number or samples d. Equal to the population mean
Answer:
a. A statistical that estimates a population parameter
Step-by-step explanation:
A point estimate is a mathematical or statistics term that describes that is used as a means of revealing an estimated value of some parameter. It utilizes a single value, which can sometimes be the statistic mean to carry out the process of point estimation.
Hence, in this case, the correct answer is Option A: A statistical that estimates a population parameter
Fractions: three oil tankers together contain 37 5/7 litres of oil. If two tankers have 11 3/14 litres and 12 3/7 litres of oil. Find the oil in the third tanker
Step-by-step explanation:
It is given that, three oil tankers together contain 37 5/7 litres of oil.
Total volume of oil is [tex]\dfrac{264}{7}\ L[/tex]
If two tankers have 11 3/14 litres and 12 3/7 litres of oil.
Oil in first tanker is [tex]\dfrac{157}{14}\ L[/tex]
Oil in second tanker is [tex]\dfrac{87}{7}\ L[/tex]
Oil in first and second tanker is :
[tex]\dfrac{157}{14}\ L+\dfrac{87}{7}\ L=\dfrac{331}{14}\ L[/tex]
Noo, oil in the third tanker = total volume - (Oil in first tanker + second tanker )
[tex]=\dfrac{264}{7}\ L-\dfrac{331}{14}\ L\\\\=\dfrac{197}{14}\ L[/tex]
Hence, this is the required solution.
How many solutions does this equation have? -3 – 7t = -7t - 3
1)no solution
2)one solution
3)infinitely many solutions
Answer:
3)infinitely many solution
Step-by-step explanation:
-3 - 7t = -7t - 3
-7t + 7t = -3 + 3
0 = 0
if there is same number on both side it have infinitely many solution.
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Anyone up? 10 points for anyone that can help on this PRE-ALGEBRA question. see attachment below
Answer:
1. I= $36, NB = $336
2. R = 5%, NB = $517.50
3. T= 5 YEARS, NB = $612.50
4. P= $675, NB = $783
Step-by-step explanation:
1. p= 300, r=3% t=4year
I= p*r*t
i= 300 * (3/100) * 4
i = 300 * 0.03 * 4
i = 36
New Balance = 300+36 = $336
2. r = (i*100)/(p*t)
= (67.50*100)/(450*3)
= 6750/1350
= 5%
New Balance =450+67.50 = $517.50
3. t= (i*100)/(p*r)
= (112.50*100)/(500*4.5)
= 11250/2250
=5
New Balance = 500+112.50 =$612.50
4. p= (i*100)/(r*t)
= (108*100)/(8*2)
= 10800/16
= $675
New Balance = $675+$108 = $783
What does n equal in the equation that I've typed out 5n+21?
Answer:
n does not have a defined value, but it has only one value, it is only possible to determined it in an equality let's say that 5n+21=26 there n =1
but we don't know the value
so it stays as 5n+21
Use the diagram below to find the value of x
{NO} =17
{NP} =5x-6
Answer : The value of 'x' is 8.
Step-by-step explanation :
As we are given that :
NO = 17
NP = 5x - 6
From the given diagram we conclude that NO and OP are equal and RO and OQ are equal. That means,
NO = OP and RO = OQ
That means,
NO = OP = 17
And we know that:
NP = NO + OP
So,
5x - 6 = 17 + 17
5x - 6 = 34
5x = 34 + 6
5x = 40
x = 8
Thus, the value of 'x' is 8.
2ab - ab + 2a + 3b + 2ab
what is this simplified ?
Answer: The answer is 3ab + 2a + 3b.
Step-by-step explanation:
So we are given this equation:
2ab - ab + 2a + 3b + 2ab
First we have to add like terms:
2ab + 2ab - ab + 2a + 3b
4ab - ab + 2a + 3b
3ab + 2a + 3b
Here is your answer!
Which expressions are equivalent to 4(4a+5
Answer:
4(4a+5) = 16 a + 20 = True
Step-by-step explanation:
Solve 9/11 + 3/13 × 26/33 - (21/121÷ 71/111
refer to the attached image
The value of the give expression is, 6260/8591
What is expression?An expression in maths is a sentence with a minimum of two numbers or variables and at least one maths operation.
Given an expression, 9/11 + 3/13 × 26/33 - (21/121÷ 71/111)
9/11 + 3/13 × 26/33 - (21/121÷ 71/111) =
= 9/11+3x2/33-(21/121x111/71)
= 9/11+6/33-2331/8591
= 9/11+2/11-2331/8591
= 1-2331/8591
= 6260/8591
Hence. the value of the give expression is, 6260/8591
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two complementary angles have a difference of 36°. Find the measure of each angle. (Complementary angles are angles that add up to 90°) Show ur work
Answer:
27°,63°
Step-by-step explanation:
Let the two angles be a and b.
They are complementary, meaning they add up to 90. Thus:
[tex]a+b=90[/tex]
And we are told their difference is 36. Therefore:
[tex]a-b=36[/tex]
Solve for the system of equations. Add b to both sides in the second equation:
[tex]a=b+36[/tex]
Substitute this into the first:
[tex](b+36)+b=90[/tex]
Combine like terms;
[tex]2b+36=90[/tex]
Subtract 36:
[tex]2b=54[/tex]
Divide by 2:
[tex]b=27[/tex]
So, b is 27 degrees.
Use the second equation again:
[tex]a-b=36[/tex]
Now that we know b is 27, substitute:
[tex]a-27=36[/tex]
Add 27 to both sides:
[tex]a=63[/tex]
So, a is 63 degrees.
And we're done :)
Answer:
27 and 63
Step-by-step explanation:
x - y = 36
x + y = 90
add the equations together
2x = 126
x = 63
substitute x for x in the first equation
63 - y = 36
y = 27
bob makes $6 dollars and hour. write an expression that will represent his total pay for h hours of work
Answer:
y = 6x
Step-by-step explanation:
pay = $6 per hour
y = 6x
Answer:
total pay = 6h
Step-by-step explanation:
total pay = pay per hour *hours worked
total pay = 6h
C. Write the value of the expression on the blank.
1. 1-561 =
2. I+181 =
3. 1+751 =
4. I+311 =
5. 1+571 =
6. I+831 =
7. 1-3451 =
8. 1-5981 =
9. l-1121 =
10. I-1431 =
Answer:
1. = -560
2. = I181
3. = 752
4. = I311
5. = 572
6. = I831
7. = -3450
8. = 5980
9. = -I1121
10. = -I1431
Which number has a thousands digit that is ten times greater than the hundreds digit?
A. 134,561
O B. 367,244
O C. 552,673
D. 706,623
please help
Answer:
B
Step-by-step explanation:7 is greater than 2
The correct answer is 367,244.
What is number system?Number System is a method of representing Numbers on the Number Line with the help of a set of Symbols and rules. These symbols range from 0-9 and are termed as digits. Number System is used to perform mathematical computations ranging from great scientific calculations to calculations.
Positive Numbers: Numbers that are represented on the right side of the zero are termed as Positive Numbers. The value of these numbers increases on moving towards the right. Positive numbers are used for Addition between numbers. Example: 1, 2, 3, 4, …
Negative Numbers: Numbers that are represented on the left side of the zero are termed as Negative Numbers. The value of these numbers decreases on moving towards the left. Negative numbers are used for Subtraction between numbers. Example: -1, -2, -3, -4, …
as per the situation given,
we have number has a thousands digit that is ten times greater than the hundreds digit.
So, the number is 367244 because 7 is 5 greater than 2.
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