Answer:
34.44 miles
Step-by-step explanation:
Distance covered bty the two trains :
Distance = speed * time
Time = 30 minutes = 0.5hr
Distance of train 1 = 64 * 0.5 = 32 miles
Distance of train 2 = 52 * 0.5 = 26 miles
Included Angle = 72°
Using cosine rule :
a² = b² + c² - 2bcCosA
Let Distance between the trains after 30 minutes = a
a^2 = 32^2 + 26^2 - 2(32)(26) * Cos(72)
a^2 = 1700 - 514.20427
a^2 = 1185.7957
a = sqrt(1185.7957)
a = 34.435
a = 34.44 miles
3) Jackson ate a chocolate bar in 2 1/2 minutes. How much of the bar did he eat
in one minute?
I DESPERATELY NEED HELPPPP
Answer:
0.4 of the chocolate bar.
Step-by-step explanation:
7. A train which is 100 meters long is traveling at a speed of 90 km per hour. How many
seconds will it take for this train to pass completely through a 300 meter tunnel?
A 4
B 8
C 12
D 16
E 20
The answer is D, 16. How do you get 16 tho?
Answer:
D; 16 seconds
Step-by-step explanation:
speed = distance/time
speed = 90 km/hr
We need to convert this to m/s because the tunnel is in meters and the time is in seconds:
[tex]\frac{90km}{hr} * \frac{1hr}{3600s} *\frac{1000m}{1km} =25m/s[/tex]
distance = 300 m (tunnel) + 100 m (train) = 400 meters
Solving for time:
[tex]25m/s=\frac{400m}{t} \\(25m/s)(t)=400m\\t=\frac{400m}{25m/s} \\t=16 s[/tex]
Solve for k.
3k–4≥ - 10
Answer:
k ≥ - 2
Step-by-step explanation:
Given
3k - 4 ≥ - 10 ( add 4 to both sides )
3k ≥ - 6 ( divide both sides by 3 )
k ≥ - 2
(1,-19), ( -2,-7) what's the slope?
Answer:
Slope: -4
Step-by-step explanation:
Jaden has 3 times as many pieces of gum as Brian has. Jaden has 150 pieces of gum. How many pieces of gum does Brian have?
Answer:
Brian has 50 pieces of gum
Step-by-step explanation:
Jaden has three times as many
Therefore-
n x 30 = 150
We need to solve for n
You can do that by dividing 150 by 3
150/3 = 50
So Brian has 50 pieces
Find the slope of the line that contains the points (-2, 1) and (-2,-9)
Answer:
Slope of the line if two points are known
Step-by-step explanation:
Formula is y2-y1/x2-x1
so that 1-(-9)/-2-(-2)
10/0 is undefined that means line is parallel to y-axis
when a line is parallel to y axis it has no slope.
If you can help please answer
Answer:
see below
Step-by-step explanation:
3. [tex]\angle BCA = \angle CAD[/tex]
Reason
By alternate interior angles
4. [tex]\triangle ABC \cong \triangle CDA[/tex]
Reason
By SAS
solve for m step by step PLEASE HELP!!!
6m-38=m^2-10+25
Answer:
Step-by-step explanation:
find the missing term.
a) 14:7 = 6:
b) 10:2 = :8
Answer:
a) let the missing term be X ,then,
14:7=6:X
14/7=6/X
14x=7*6
X=7*6/14
X=3
b) let the missing term be X ,then,
10:2=8:X
10/2=8/X
10x=8*2
X=16/10
X=1.6
Jaden made a pot of chili with 24 ounces of ground beef and 3 tablespoons of chili powder. He made another pot of chili with the same amount of ground beef, but he used 2 times as much chili powder. How many pounds of ground beef per tablespoon of chili powder did he use in the second pot of chili
Answer:
0.25 pound per table spoon
PLEASE help i have tried to do this many times but still don’t understand
Answer:
33 is the correct answer
A circle has an area of 254.469. What is the radius? (round to the nearest whole number)
Answer:
c = 2 r π = 2 * 9.0048 * 3.14159 = 56.55 units
I NEED CORRECT ANSWERS FOR THESE THREE QUESTIONS ASAPPP FOR 25 POINTS
Answer:
[tex]1) y = - \frac{3}{2} x + 4[/tex]
[tex]2)y = x + 5[/tex]
[tex]3)y = 4 + 5x[/tex]
Mrs. Jones drove 138 miles in 2.25 hours and Mr. Jones drove 159 miles in 2.5 hours. Who was driving faster?
Answer:
Mr. Jones
Step-by-step explanation:
it's Mr. Jones because he drove 63.6 miles and his wife drove 61.3
I can’t really afford to lose this...It can help me just need the last answer
Answer:
x = 5
Step-by-step explanation:
the angles of a triangle add up to 180°
17x+13x+6x=180
36x = 180
x = 5
Answer: 5
Step-by-step explanation:
To start off, the angles of a triangle add up to 180.
Therefore, you would find he answer by adding all the angles together and making it equal to 180.
13x+17x+6x=180
When you solve the equation, you will get X=5.
To check your work:
13 times 5=65
17 times 5=85
6 times 5=30
65+85+30=180
10. What is 7 less than the square root of 64?
Answer:
1
Step-by-step explanation:
The square root of 64 is 8, since 8 x 8 = 64. 8 - 7 = 1 , so the answer would be 1 ! I hope this helps, and have a wonderful day !
Graph this function:
y + 1 = 2(x + 3)
Click to select points on the graph.
Answer:
use points (0,5) and (1,7)
see below for graph
Step-by-step explanation:
First, we'll turn the equation from point slope form (y-y1=m(x-x1)) into slope intercept form (y=mx+b)
y+1=2(x+3)
do the distributive property
y+1=2x+6
subtract 1 from both sides
y=2x+5
We'll need two points to graph the line.
You can subsitute x or y as any number you like and solve the equation.
For example:
if x=0:
y=2(0)+5
y=5
so the point would be (0,5)
and if x=1
y=2(1)+5
y=2+5
y=7
point: (1,7)
Use the points (0,5) and (1,7)
See below if you would like to see how it looks like on a graph.
Hope this helps!
The elevations of four points below sea level are -47 feet, -24 feet, -8 feet, and -18 feet.
The elevation of the point closest to sea level is
feet, and the elevation of the point farthest from sea level is
feet.
Answer:
-47
Step-by-step explanation:
in negative numbers the higher you go, the lower it is.
think of opposites, this least to greatest: -47, -24, -18, -8, ok, so you can see that -47 is the least.
Hope this helps you, have a great day.
Helppppppp Il mark you brainlist!!!! Helppppppp Il mark you brainlist!!!!
1) Which graph shows different numbers of tickets that Elena can sell to raise more than $180?
2) I would like to know who to mark people the brainiest!!! :)
Answer:
It is the top right
Step-by-step explanation:
I got it right
please help i can’t figure this out
Answer:
C because 100 percent of 15 is 15 and 20 percent of 15 is 3
If your good at math pls help me I’ll mark brainliest
Answer:
it's answer is A x = 3
x³ = 27
x³ = 3³
x = 3
Hope it will help :)
Answer:
A. x = 3
Step-by-step explanation:
The question is;
[tex]x^{3} = 27[/tex]
To solve it, one has to do;
[tex]x = \sqrt[3]{27}[/tex]
(x equals the cube root of 27)
The cube root essentially asks, what number times itself three times equals the number under the radical.
3 times itself 3 times equals 27, hence the answer is 3.
If you were to befriend a person in the first 2 months of school, would you trust them, yes or no?
Answer:
I guess that would depend on the type of person they are-
Step-by-step explanation:
Doing an Algebra assignment that is due today, I have multiple problems I need help with, I'm posting 5 questions at a time since I can't post them all. This is the second part :'|
Answer:
The answer is w^2 -12w +36
Solve for
x
a) 7^x = 1
Answer:
x=0
Step-by-step explanation:
Take the logarithm of both sides of the equation to remove the variable from the exponent. Hope this helps!
What is a solution?
4
Group of answer choices
y=-1
(0,4)
No Solution
(2,-1)
Answer:
fwoueyfg WFE
Step-by-step explanation:
TIE FIGHTERS GO ZOOOOM
A fair six sided dice is rolled twice. What is the theoretical probability that the first number is greater then or equal to the second number. WILL AWARD BRAINLIEST.
36 total outcomes
Step-by-step explanation:
Since there are a 6/times 6= 36 possible outcomes
WHAT ON EARTH IS THIS ANSWER
Answer:
Step-by-step explanation:
You can figure out the angle DBC by the alternate interior theorem. Angle DBC=56 degrees. You already figured out BD.
Since we know BD, BC, and the angle DBC we can use the Law of cosine to find CD
The law of cosine is
CD^2=BC^2+BD^2-2(BC)(BD)cos DBC
Plug in what we know
CD^2=18^2+12.1^2-2(18)(12.1)cos 56
CD^2≈228.8387
Find the square root to isolate CD.
CD≈15.1
write an equation for a line parallel to the line y=1/3x-4 through (3,-2)
NEED HELP....LIKE NOW!!!!!!!
Answer:
is it for a test or something
Step-by-step explanation:
7th grade math help me please :)
Step-by-step explanation:
6^4=1296.
so the answer is 1296..................
Answer:
Step-by-step explanation:
m^n
m=6
n=4
6^4
6x6x6x6
36x36
36x36=1296