Answer:
7.4 feet below sea levelStep-by-step explanation:
Assumed the starting point is the sea level 0.
After 2.8 min the diver is at position:
20 1/2 * 2.8 = 20.5 * 2.8 = 57.4 feet below sea levelThe position change after next 2 minutes:
25*2 = 50 feetThe position of the diver after 4.8 min:
57.4 - 50 = 7.4 feet below sea levelAnswer:
I tried to but they picture on but it did not work for some reason but the answer is -7.4
Step-by-step explanation:
can u answer this please?
thanks! ☺️
perform the indicated operations and simplify.
Find the value of X please and thank you :)
Answer:
143 degrees
Step-by-step explanation:
The shape is a hexagon therefore the total angle will be 720 degrees.
The sum of the total angle of the shape is 434 degrees
So to get the answer the equation is:
434 + x + x = 720 degrees
So x = 143 degrees.
Which values from the set (-6,-4,-2,0,2,4,6) Satisfy this inequality? 3+1/2x>4
Answer:-6 and -4
Step-by-step explanation:
What is the perimeter of a square with 4 inch sides
Answer:
16 units
Step-by-step explanation:
We know a square is 4 sides, and perimeter is the sum of all sides.
4 + 4 + 4 + 4 = 16 units
we can do this in a more efficient way with:
4 x 4 =16 units
keep in mind significant figures. 6.020*0.0510 (use a calculator)
Answer:
0.30702
Have a good day.
Answer:
0.030567
Step-by-step explanation:
carry on learning
There are 206 people who have signed up for cooking lessons. If there will be 8 people in each class, what is the least number of classes needed for all the students to be registered in a class
Answer:
26
Step-by-step explanation:
206÷ 8= 25.75 (remainder was 6)
that means 25 classes will be needed but since the are 6 students remaining 1 more class can be added makes 26 classes
8. A submarine's elevation is -14.5 feet relative to sea level. A shark is
swimming at an elevation -56.8 feet. What is the difference in elevation
between the submarine and the shark?
a) 71.3 feet b) 56.8 feet c) 42.3 feet d) 14.5 feet
Answer:
C.)42.3
Step-by-step explanation:
If it's difficult to do subtraction with negatives, switch them to positive and subtract 14.5 from 56.8. In order to get a lesser negative number(negatives closer to -1 are greater), you have to add a positive number. My math teacher taught me this simple but effective method. This method is used for multiplication and division but it helps:
(Hate=Negative and Love=Positive)
If you hate to hate, you love.(neg. x neg=pos.)
If you hate to love, you hate(neg. x pos.=neg.)
If you love to love, you love(pos. x pos.=pos.)
If you love to hate, you hate(pos. x neg.=neg.)
c) 42.3 feet
Step-by-step explanation:
Is known :
A submarine's elevation is -14.5 feet relative to sea level. A shark isswimming at an elevation -56.8 feet.Asked :
What is the difference in elevation between the submarine and the shark?.Aswered :
A submarine's elevation is -14.5 feet relative to sea level - A shark isswimming at an elevation -56.8 feet
= (-14,5) - (-56,8)
= 42,3
Adedayo spent 1/5 of his money to buy a Mathematics book and 1/4 of the remainder to buy an English book. What fraction of the original money has Ade left?
If Adedayo spent 1/5 of his money to buy a Mathematics book and 1/4 of the remainder to buy an English book. The fraction of the original money Ade left will be 4/5
What is a fraction?Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.
It is given that, Adedayo spent 1/5 of his money to buy a Mathematics book and 1/4 of the remainder to buy an English book.
The fraction of the original money Ade left is,
=1-(1/4+1/5)
=1-(1/5)
=4/5
Thus, if Adedayo spent 1/5 of his money to buy a Mathematics book and 1/4 of the remainder to buy an English book. The fraction of the original money Ade left will be 4/5
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Simplify these expressions a) 5 x x b) 6 xxxy c) 2 x x x 3 xy
The simplified forms of the expressions are;
a.5x²
b.6x³y
c.6x⁴y
What are index forms?Index forms are described as mathematical forms that makes numbers or values in too small or too large forms appear in a more convenient manner.
Other names for index forms are standard forms and scientific notation.
These index forms are formed by taking the exponents of numbers or variables inside of their usually repetitive forms in an expression.
From the information given, we have that;
a. 5 x x
Since the variable appeared twice, it is represented as;
5x²
b. 6 xxxy
One variable appeared three times
6x³y
C. 2 x x x 3 xy
Multiply the numbers as well as the variables
6x⁴y
Hence, the expressions are simplified to index forms
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1. What is the difference between these two expressions
(5+3)*3
(5+3)*9
Answer:
The difference is one number is larger than the other.
Step-by-step explanation:
we are doing BOMDAS
so (5+3)*3
we start with the bracket first since we are dealing with BOMDAS
(5+3)*3 = 8*3
then we multiply the 8*3 which equals to 24
(5+3)*9
we start with the bracket first (5+3) equals to 8 and then we multiply the 8 by the 9 and the answer is 72
(5+3)*9
(5+3)= 8*9
= 72
between 24 and 72 the difference is 72 is larger
If E is the circumcenter of MNP, find each measure.
Answer:
NE = 37
MD = 3[tex]\sqrt{65}[/tex]
Step-by-step explanation:
NOTE: This explanation assumes you have basic knowledge of circumcenters, the Pythagorean Theorem, and pre-algebra
Assuming the calculations you so kindly did for us are correct:
To find NE
Simply plug x, which you found was 5, into the equations 13x-28, then you have the length of the line NE, which is 37.
So
NE = 37
To find MD
A little bit trickier, but still simple. You end up having to use the Pythagorean Theorem. Since NE = ME, you know that ME is equal to 37. Since triangle MED is a right triangle, and you're given on the the side ED (which is 28), and the hypotenuse, ME (which is 37), you can say that
28^2 + b^2 = 37^2
784 + b^2 = 1369
b^2 = 585
b = 3[tex]\sqrt{65}[/tex]
(In which b is MD)
So
MD = 3[tex]\sqrt{65}[/tex]
write the equation of the ellipse using the given information: the ellipse has foci (0,3) and (0,-3) and major vertices (0,5) and (0,-5).
Answer: (x^2)/16 + (y^2)/25 = 1
Step-by-step explanation:
According to the problem we can figure out that the center of the ellipse is (0,0).
Since the foci is (0,3) and (0,-3) we know that the value of c is 3. The major vertices are (0,5) and (0,-5) so the value of a is 5.
If we put this into the equation a^2=b^2 + c^2, we get 25=9+ b^2
We get b^2 is 16
Now since we know that the ellipse is vertical because the x value didn’t change, we know that the b^2 value comes first in the equation. Then the a^2 value which is 25.
Solve for x: 3- (2x-5)<-4(x+2)
Answer:
x < -8 orx ∈ ( - ∞, - 8)Step-by-step explanation:
3 - (2x - 5) < - 4(x + 2)3 - 2x + 5 < -4x - 84x - 2x < - 8 - 82x < - 16x < - 8or
x ∈ ( - ∞, - 8)[tex]\\ \sf\longmapsto 3-(2x-5)<-4(x+2)[/tex]
[tex]\\ \sf\longmapsto 3-2x+5<-4x-8[/tex]
[tex]\\ \sf\longmapsto -2x+8<-4x-8[/tex]
[tex]\\ \sf\longmapsto 2x-8<4x+8[/tex]
[tex]\\ \sf\longmapsto 2x-4x<8+8[/tex]
[tex]\\ \sf\longmapsto -2x<16[/tex]
[tex]\\ \sf\longmapsto 2x<16[/tex]
[tex]\\ \sf\longmapsto x<-8[/tex]
what is the length of the diagonal of the rectangle?
Answer:
C
Step-by-step explanation:
i just added
Which expression is equivalent to −3(−56) Group of answer choices −157 156 −87 157
Answer:
D.15r7
Step-by-step explanation:
multiplying two negatives equals a positive: (-)x(-)=(+)
-3rx(-5r^6)
simplifing to
3rx5r^6
then combime like terms to get
15r7
What is the solution set of {x | x < -3} ∩ {x | x > 5}?
A. the empty set
B. all numbers except -3 and 5
C. all real numbers
D. the numbers between -3 and 5
2.
What is the solution set of {x | x < 2}U{x | x ≥ 2}?
A. all numbers less than -2 and greater than 2
B. all real numbers
C. the empty set
D. the numbers between -2 and 2
3.
Which of the following describes the graph of {x | 1 < x < 2}?
A. open circles on 1 and 2, line segment between
B. open circles on 1 and 2
C. open circles on 1 and 2, arrows pointing out
D. no solution
Answer:
1) A, 2) B, 3)AStep-by-step explanation:
#1
Intersection of the two given sets is the empty set as the sets cover two different intervals without common elements.
Correct choice is A
#2
Assume there is a union sign between sets.
The union of the two sets is both of them.
Correct choice is B
#3
Both the points are excluded, so both ends are open circles and the graph covers the interval between them.
Correct choice is A
Your answers would be:
1.) A
2.) B
3.) A
21 less than tree-fifths of a number
Answer:
[tex]\frac{3}{5}x - 21[/tex]
Step-by-step explanation
Three-fifths of a number means [tex]\frac{3}{5}x[/tex] and 21 less than that number means [tex]\frac{3}{5} x - 21[/tex].
I give briniest for the right answer if you don't know the answer don't answer it.
Answer:
yes, no because it's not a decimal with only one digit in front of the decimal mark, no because the decimal point is too far forward.
A:
i:
5.1 x 10^6
9.75 x 10^10
1.2 x 10^-7
5.008 x 10^-6
ii:
a. 3200000000000
b. 50700
c. 0.00056
d. 0.083
B:
3,2,4,1
1,2,3,4 -ik but it's what i got
1,3,4,2
C:
uranus, neptune, saturn, jupiter
answer choice B
D:
8 x 10^-5
9 x 10^6
3 x 10^-5
7 x 10^-5
5.5 x 10^5
3.2 x 10^5
8.2 x 10^5
7.3 x 10^-3
0.0000832
3120000
0.009
0.0085
8000000
0.05
0.067
57.5
Step-by-step explanation:
(x^2 + kx + 10) ÷ (x - 1) has a remainder of 4.
I have no idea how to do this, I've tried Synthetic division, remainder theorem etc. and cant figure it out.
9514 1404 393
Answer:
k = -7
Step-by-step explanation:
Attached are both synthetic division and remainder theorem solutions. Either way, you find the remainder is k+11, which you want to have a value of 4.
k +11 = 4
k = -7 . . . . . subtract 11 from both sides
_____
The second attachment shows the long division that validates this result.
What transformations take place by graphing the function below in respect to its parent function? Check all that apply.
Answer:
- Vertical Stretch
-Left 7 Units
-Up 2 units
Step-by-step explanation:
Because the formula is being multiplied by a number larger than 1, it is being vertically stretched. In this problem, it is being vertically stretched by a factor of 3/2.
When X is being added to in the parenthesis, it causes the graph to shift to the left. Since the equation has (X+7), the graph shifts left by 7 units.
When a number is added to the equation, it causes the graph to shift upwards. In this example, 2 is being added, therefore, the graph shifts upwards by 2 units.
That means there is a vertical stretch by a factor of 3/2, a horizontal translation left 7 units, and a vertical translation up 2 units
Can you guys show me where they went wrongg
9514 1404 393
Answer:
43.70 ft
Step-by-step explanation:
The Pythagorean theorem tells you the square of the hypotenuse is the sum of the squares of the other two sides. The correct computation is ...
Hypotenuse is √(7² +7²) = √(49 +49) = √98 = 7√2
Perimeter of pentagon is ...
7 +7√2 +7√2 +7√2 +7 =
7 +21√2 +7 =
14 +21√2 ≈ 14 +29.70 =
Perimeter is approximately 43.70 ft.
__
There are two errors:
side lengths were used instead of their squares to find the hypotenusecontents of radicals were added, rather than coefficients of themBoth errors are easy to find if you know what the computation is supposed to look like.
The Pythagorean theorem involves a sum of squares.
Is it equal greater or less983.9 9.839
Answer:
what is the question ❓ i don't understand
Alice got these scores in her exam English 45 out of 50. music 45%. art 25 out of 40. maths 85% which subject did Alice get her highest and lowest scores in .
Answer:
English: 45/50 = 0.9 = 90%
Music: 45%
Art: 25/40 = 0.625 = about 63% (if you round up)
Math: 85%
As you can see: English - highest | Music - lowest
Alice got her highest score in Maths, and her lowest score in Music.
To find out which subject Alice got her highest and lowest scores in, let's compare the scores in each subject.
English: 45 out of 50 = 45/50 = 0.9 (90%)
Music: 45 % = 45/100 = 0.45
Art: 25 out of 40 = 25/40 = 0.625 (62.5%)
Maths: 85 % = 85/100 = 0.85
Now, we can see that the highest score is in Maths (85%) and the lowest score is in Music (45%).
So, Alice got her highest score in Maths, and her lowest score in Music.
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What is the area of 4 inches and 1 inches
Samuel runs around a 100-meter track. He uses the linear equation y= 200 + 5x to describe how far he runs after he has already Jogged two laps. Which of the following best describes the slope of the linear equation?
Answer:
Samuel runs 5 meters per second
Step-by-step explanation:
Find the equation for the vertical line that goes through point M(−2, 6).
Answer:
Step-by-step explanation:
Every possible value of y will have an x value of x = - 2 associated with it. For example (-2, 58) is also on this vertical line. A line with more than 1 y value associated with x means the line you get is not a function.
The equation you want is x = - 2
if the equation is x²+y²-12x-10y=-12 what is the center and radius of the equation and give the graph
Answer:
center (6;5); R=7
Step-by-step explanation:
Step-by-step explanation: Subtract
12 from both sides of the equation. x 2 − 12 x + y 2 + 10 y = − 12 , Complete the square for x 2 − 12 x .
Isn't 3 1/2 instead of three and Caleb wrote 1/4 of the song?
Answer:
Need a bit more context
Step-by-step explanation:
brainly for the people who help me
Answer:
1 dollar
Step-by-step explanation:
If she started with 1 and add 43 she now has 44. Once you add the 22 you get 66 which is what she has now.
According to national data, about 15% of American college students earn a graduate degree. Using this estimate, what is the probability that exactly 27 undergraduates in a random sample of 200 students will earn a college degree? Hint: Use the normal approximation to the binomial distribution, where p = 0.15 and q = 0.85. (Round your answer to four decimal places.)
Using the binomial probability relation, the probability that exactly 27 graduates earn a college degree is 0.069
Using the relation :
P(x = x) = nCx * p^x * q^(n-x)
Probability of success, p = 0.15q = 1 - p = 1 - 0.15 = 0.85Number of trials, n = 200X = 27Probability of exactly 27 graduates can be defined thus :
P(x = 27) = 200C27 × 0.15^27 × 0.85^173
P(x = 27) = 0.0686264
Therefore, the probability of selecting exactly 27 graduates is 0.069
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