Answer:48.85 hr
Step-by-step explanation:
Given
The length of the train track is [tex]L=850\ miles[/tex]
the average speed of the train is [tex]v_{avg}=850\ mph[/tex]
If this track is laid on to a big circle, then the length is equivalent to the circumference
time is taken to cover the circumference is given by
[tex]\Rightarrow t=\dfrac{L}{v}\\\\\Rightarrow t=\dfrac{850}{17.4}=48.85\ hr[/tex]
Solve the equation: 5.4 -7.5 -6.3 = Solve the equation:
The answer would be -8.4.
Answer:
[tex]5.4 - 7.5 - 6.3 = 5.4 - 13.8 \\ = - 8.4[/tex]
Which pair of functions are inverses of each other?
Help help help!!!!!
Answer:
b
Step-by-step explanation:
check 1 by 1
a. [tex]y=\frac{\sqrt[3]{x}}{5}[/tex]
[tex]x=\frac{\sqrt[3]{y} }{5}[/tex]
125x^3=y which is not equal to g(x)
b. y=2x-9
inverse= x=2y-9
x+9=2y
y=(x+9)/2 which is equal to g(x). B is the answer.
A group of students is trying to determine the number of cars that move along a certain section of roadway. The dot plot below shows the speeds of 20 vehicles. Complete the table with the correct values from the dot plot.
Answer:# of cars: 1 | 0 | 0 | 0 | 2 | 4 | 5 | 3 | 0 | 2 | 2 | 1 |
Note: the answers are from left to right in order
Step-by-step explanation:
So this isn't as hard as it seems. You just count the X's and if there is like for example 1 x on 30 then the answer for 30 is 1 since there is only 1 X.
Please help.
Is algebra.
Answer:
B
Step-by-step explanation:
The first one is a binomial. It has two different terms on either side of the middle minus sign. y is raised to the 4 th power so that is degree 4. The answer is b
The second problem is ordered as 4 3 1 2
The powers determine the degree. The terms are all different and the number of terms is determined by the powers of the letters in the terms.
Answer:
Step-by-step explanation:
Which category best describes the group of shapes
Answer:
Parallelograms
Step-by-step explanation:
Any ways i need help (16 points)
Answer:
Step-by-step explanation:
A = 3M
J = 2A
J = 6M
Marie = M
Andre = 3M
Jane = 6M
6M+3M+M = 840
10M = 840
M= 84 Pounds
Andre = 3M
Andre = 84*3
Andre has 252 pounds of apples.
hey can you help me fast!!
Answer:
-10 / -2/5
Step-by-step explanation:
-10 / -2/5 = 25
25 is greater than 10
i have no idea what to do, someone pleasehelp.. please just give the straight forward equation and answer. thank you, 33 points to whoever does it
Answer:
Coordinates (1,6)
Equation x=1
Step-by-step explanation:
Center of highest point is 1 on the x and 6 on the y
please help me
I don't get what the question is asking me
(9 x 10^6) + (8 x 10^{-4})
Cost of a puppy: $348.88
Discount: 23%
Help please I’ll give brainliest
What is the asymptote of this function?
A) x=3
B) y=3
C) x=4
D) y=4
Answer:
b
Step-by-step explanation
look at the way the way the line curves and cross over into the positive across the dotted line. the curw = y
Make a table of values given that “x” is an integer such that -4 < x < 4, using the Equation y = 3x + 5.
How much of 27 and 19 do I need to make 30,000 even?
Answer:
I don’t know but I know 27 times 630 plus 19 times 680 is 29,930 I’ve tried some other ways but it gets really close but not exact
Step-by-step explanation:
Sam paid $8.28 for 18 stamps. At this rate, how much would it cost Sam to buy 12 stamps?
Answer: $5.52
Step-by-step explanation:
Given: Sam paid $8.28 for 18 stamps.
Thus, the cost of 18 stamps = $8.28
Then the cost of 1 stamp=
Thus, the cost of 1 stamp=$0.46
With the same rate , the cost of 12 stamps=
Therefore, the cost of 12 stamps= $5.52
hence, it costs $5.52 to Sam to buy 12 stamps.
8.28÷18 = 0.46
0.46 is the cost if 1 stamp
cost of 12 stamps= 0.46×12 = $5.52
happy to help :)
Type a digit that makes this sentence true !!!
Answer:
any number between 83 and 0. [tex]0\leq x\leq 83[/tex]
Step-by-step explanation:
the number 1,548.4484 has the last two digits of 84.
And since the number has to be less than the other number and you can only switch the last two digits in the decimal's place. It has to be less than 84
Hope that helps :)
Answer:
the digit is 4, because that has 4484 but just put 4444
Mr. Davis is packing a box with books. The box is a rectangular prism with the 2 ft 3 ft 2 ft What is the volume of the box?
Answer:
12 ft^3
Step-by-step explanation:
Given data
Dimension
Lenght= 2ft
Width= 3ft
Height= 2ft
The expression for the volume is
Volume= L*W*H
Substitute
V= 2*3*2
V= 12 ft^3
Hence the volume of the box is 12 ft^3
Angle X and Angle Y are complementary angles. Given Angle Y is equal to 1/5th Angle X. Find the value of Angle X in degrees
Answer:
75 degrees
Step-by-step explanation:
Complementary angles equal 90 degrees together. That is the case with angle X and Y. Set an equation to describe the situation.
Y=1/5X
X=5Y
Now, set another equation:
X+Y=90
Substitute the first equation into the second one.
5Y+Y=90
6Y=90
Y=15
Substitute this once again:
X+15=90
X=75
Find the slope of the line through each pair of points using the formula.
(17, -19) (4, -15)
Answer:
-4/13
Step-by-step explanation:
(17 , -19) ; (4 , -15)
Slope = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
[tex]= \frac{-15-[-19]}{4-17}\\\\=\frac{-15+19}{4-17}\\\\=\frac{4}{-13}\\\\= \frac{-4}{13}[/tex]
Answer:
- 4 / 13
Step-by-step explanation:
Algebra work is easy :)
good luckkk
what power do I need to raise both sides of the following equation to? x^4=81
Answer:
Rise it to 2
( x ^2 ) ^2 − 9 ^2 = 0
Step-by-step explanation:
The area of the rectangle below is 18 square units. What is the width of the rectangle? Write and solve a division equation to find the width of the rectangle.
Answer:
24/5 or 4 and 4/5
Step-by-step explanation:
3 and 3/4=15/4
18 divided by 15/4=4 and 4/5
4 and 4/5=24/5
24/5 times 15/4=18
Answer:
I agree with the person above but I'm not so sure.
Please help; I'll give brainliest for the first person who answers <3
Answer:
m puq
Step-by-step explanation:
Cole wrote the number shown.
375,819
Lindsay used the same digits to write a number in which the value of the digit 7 is 110 of the value of the digit 7 in Cole’s number. Which number can be the one Lindsay wrote
Ryan invests $8,361 in a savings account with a fixed annual interest rate of 4.31% compounded monthly. After 10 years, what will be the balance in the account?
Answer:
12,750
Step-by-step explanation:
After investing for 10 years at 4.31% interest, your $8,361 investment will have grown to $12,750
Can y’all help with geo?
Here's the solution,
figure 1.
by using trigonometry,
=》
[tex] \sin(60) = \dfrac{5 \sqrt{3} }{y} [/tex]
=》
[tex] \dfrac{ \sqrt{3} }{2} = \dfrac{5 \sqrt{3} }{y} [/tex]
=》
[tex] \dfrac{1}{y} = \dfrac{ \sqrt{3} }{2 \times 5 \sqrt{3} } [/tex]
=》
[tex] \dfrac{1}{y} = \dfrac{1}{10} [/tex]
=》
[tex]y = 10[/tex]
And,
=》
[tex] \cos(60) = \dfrac{w}{y} [/tex]
=》
[tex] \dfrac{1}{2} = \dfrac{w}{10} [/tex]
=》
[tex]w = 5[/tex]
So, values are :
y = 10w = 5figure 2.
Since, it's an isosceles triangle, w = y,
So, by pythagoras theorem :
=》
[tex] {w}^{2} + {y}^{2} = (7 \sqrt{2} ) {}^{2} [/tex]
=》
[tex] {w}^{2} + {w}^{2} = 98[/tex]
=》
[tex]2 {w}^{2} = 98[/tex]
=》
[tex] {w}^{2} = 49[/tex]
=》
[tex]w = \sqrt{49} [/tex]
=》
[tex]w = 7[/tex]
and we know, w = y, so their values will be equal to 7 units.
Find the value of x. Round to the nearest tenth.
Answer:
90 hope this helps
Step-by-step explanation:
Find the trigonometric ratios as simplified fractions and as decimals to the nearest thousandths (as necessary).
Sin X: Fraction_______ Decimal_______
Cos X: Fraction_______ Decimal______
Tan X: Fraction__________ Decimal______
Step-by-step explanation:
by using Pythagoras law
ZY=√{45²-27²)=36
sin X=ZY/XY=36/45=0.8
Cos X=XZ/XY=27/45=0.6
Tan X= YZ/XZ=36/27=1.33
Hal put $3000 into a savings account that earns 6% interest. After 6 years, what will be the total amount of money in his savings account?
Explain for BRAINLIST.
Answer:
6000
Step-by-step explanation:
so you have to divide 3000 and 6 to get 500
next you would do 500 times 6 equals = 3000
so now you would plus them and get 6000
now that is your answer
please give me branlyiest
Find x and y
Show all the work
Answer:
x=27°
y=4 units
Step-by-step explanation:
To find x:
The sum of all the angles in a quadrilateral is 360°. In a rhombus (you know it's a rhombus because it's a quatrilateral where all the sides are congruent), opposite angles are congruent. Because you're given that the measure of ∠T is 127°, you also know that m∠V=127°. You also know that m∠U=m∠S=(2x-1)°.
Using this information, set up an equation.
127+127+(2x-1)+(2x-1)=360
You can just divide both sides by 2 to get:
127+(2x-1)=180
Then, just solve for x.
127+2x-1=180
2x+126=180
2x=54
x=27°
To find y:
All the sides are given to be congruent. That's what the little marks on the sides mean, and that's how we knew it was a rhombus earlier.
So SV=VU=UT=TS
SV=6y-5
VU=3y+7
Since SV=VU:
6y-5=3y+7
Solve for y.
3y=12
y=4
Hope I could help!