Answer:
0
8
10
Then make thoes ordered pairs so;
(0,0)
(4,8)
(5,10)
Answer:
0,8,10 i think you plug in 0 for x and do the same for the
others
Help ASAP!
A pirate in search of a treasure hikes three days in a row. He hikes 12.5 km to his destination on the first day, 18 km to his destination on the second day, and 14 km to his destination on the third day. He hikes 1 km/h slower on the first day than on the second day, and 1 km/h faster on the first day than on the third day. The third day's hike takes 30 minutes longer than the second day's hike. How long does the pirate search (across all three days) if he spends 2 hours digging for treasure at each destination?
Answer:
15hrs
Step-by-step explanation:
We can start by expressing the speed of the second trip as x. This means that the first trip must be x-1, and second (x-1)-1=x-2. Next we can form an equation with the information that the third day hike takes 30 min longer than second day hike. Since we now the distance of both days, we can express them in time. So... [tex]\frac{18}{x}+\frac{1}{2}=\frac{14}{x-2}[/tex] ... We can solve by finding a LCM of all three expressions. Doing so we get 2x(x-2). Now multiplying out with the new denominators, we get 36(x-2)+x(x-2)=28x. Solving as a quadratic equation, the solution comes out to be x=6, x=-12. But as speed can't be negative, only solution is x=6. Now we get the speed of each day's hike. First day=x-1=5, second day=6, third day =x-2=4. Finding the time is simple, just do distance/speed. First day=12.5/5=2.5hrs. Second day=18/6=3hrs. Third day=14/4=3.5hrs. Adding total hrs up... 2.5+3+3.5=9. Finally step is accounting for the 2hr digging time per day. 2hrs*3= 6hrs. 6hrs+9hrs=15hrs. Hope this helps!
i’m confused on how to do this
Answer:
68°
Step-by-step explanation:
The sum of all internal angles of a circle always total 360°.
So, we can add the three angles (ADB, BDC, ADC) and equate them to 360°.
90 + (2x+1) + (2x-3) = 360
90 + 4x -2 = 360
4x - 2 = 360 - 90
4x - 2 = 270
4x = 272
x = 272/4
x = 68°
From here, you can find any of the two unknown angles by simply plugging in x = 68°.
Feel free to ask me if you didn't understand any part :D
Hope this helps!
Select the expressions that are equivalent to 7(x+2).
Answer:
5
Step-by-step explanation:
7-2=x
7-2=5
x=5
.........................
a. Keiko's estimate for the distance the car will roll is 85 cm. What is the percent error in Keiko's estimate? Show your work.
Answer:
I believe it should be 5.882%
Step-by-step explanation:
This is how i got tought to do it
85-80=5
5/85=0.05882
0.05882 times 100=5.882%
and that's your answer hope you get it right.
Please help! 20 points!
3
The grid shown below is in the shape of a rectangle.
What is the area, in square units, of the shaded part of the rectangle?
А.
14
B
24
С
28
D
48
Answer:
hello
Step-by-step explanation:
but dear where is the picture?
6. The dimensions of a rectangular garden are 380ft x 250ft. If you want to walk around this garden to make 3 miles for a morning walk, how many times should you walk? Note: I mile 5280f.
Answer:
Step-by-step explanation:
L=3(5280)/(2(380+250))
L=15840/1260
L=12.57
So to walk three miles one must walk around the garden 12.57 times.
If she traveled 400 miles, how many hours did she drive?
Answer:
it is 8 hours................
Answer:
takes you 8 hours
Step-by-step explanation:
Corey needs at least 2 gallons of paint to make a mural. If Corey has 6 quarts and 3 pints of paint, will he be able to make a mural?
Answer:
no
Step-by-step explanation:
4 quarts = 1 gallon, so he would have 1.5 gallons.
8 pints = 1 gallon, he would need 4 pints to have 2 gallons
Answer:
No he will not.
Step-by-step explanation:
6 quarts to a gallon is 1.5
3 pints to a gallon is 0.375
you add those together you get 1.875 not 2
helpppppppppp me plzzzzzz
Answer:
3x - 5y = 45
Step-by-step explanation:
divide all numbers by 4
Answer:
the question is linear equation in two variables so the answer is infinitr first we will be x zero and y will be -9 and second y is zero x will be 15 by this system we get many answers
PLEASE HELP!!!
The radius of a round pizza is 8 inches. What is
the area of the pizza?
Use 3.14 for pi.
Answer:
31.165 inches using pi exactly, but in your case the answer is 25.12 inches.
Hope this helps you :)
PLEASE, help! thank u
4th time
Answer:
I do not no the answer but I had an assignment on khan like this before so maybe check khan academy if u haven't yet
A triangle has the coordinates
A( 4, –1), B(3, –3), and C(0, 2).
Reflect the triangle over the y-axis and find the coordinates of its image.
A(4, −1) → A
B(3, −3) → B
C(0, 2) → C
Answer:
-1,-4
-3,3
-2,0
Step-by-step explanation:
hope this helps
Given the diagram, a supplement to
Given:
The figure of a quadrilateral ABCD.
To find:
The supplement of angle ABC.
Solution:
We know that, two angles are called supplementary angles if their sum is 180 degrees.
[tex]\angle ABC+\angle BAC=110^\circ+40^\circ[/tex]
[tex]\angle ABC+\angle BAC=150^\circ\neq 180^\circ[/tex]
So, [tex]\angle BAC[/tex] is not a supplement of [tex]\angle ABC[/tex].
[tex]\angle ABC+\angle ADC=110^\circ+90^\circ[/tex]
[tex]\angle ABC+\angle ADC=200^\circ[/tex]
So, [tex]\angle ADC[/tex] is not a supplement of [tex]\angle ABC[/tex].
[tex]\angle ABC+\angle DAB=110^\circ+(40+30)^\circ[/tex]
[tex]\angle ABC+\angle DAB=110^\circ+70^\circ[/tex]
[tex]\angle ABC+\angle DAB=180^\circ[/tex]
So, [tex]\angle DAB[/tex] is a supplement of [tex]\angle ABC[/tex].
In the same way [tex]\angle ABC+\angle BDC\neq 180^\circ[/tex].
So, [tex]\angle BDC[/tex] is not a supplement of [tex]\angle ABC[/tex].
Therefore, the correct option is C.
Plz help :) THANKSSS
Answer:
d
Step-by-step explanation:
Answer:
C. About 3.6 units is = to the length of AB
What is the quotient? X+5√3x^2+4x+5 A.) 3x^2-11+60/x+5 B.) 3x-11+60/x+5 C.) 3x^2-11-50/x+5 D.) 3x-11-50/x+5 Please hurry this is timed!
Answer:
[tex]3x - 11[/tex]
Step-by-step explanation:
Given
[tex]\frac{3x^2 + 4x + 5}{x + 5}[/tex]
Required
Determine the quotient
First, we check if the divisor (x + 5) can divide the dividend (3x^2 + 4x + 5) without having a reminder
Equate the denominator to 0.
[tex]x + 5 = 0[/tex]
[tex]x = -5[/tex]
Substitute -5 for x in the numerator
[tex]3x^2 + 4x + 5 = 3*(-5)^2 + 4 * (-5) + 5[/tex]
[tex]3x^2 + 4x + 5 = 60[/tex]
This means that it has a reminder of 60
To get the quotient, we subtract 60 from the numerator and evaluate
[tex]\frac{3x^2 + 4x + 5}{x + 5}[/tex] becomes
[tex]\frac{3x^2 + 4x + 5 - 60}{x + 5}[/tex]
[tex]\frac{3x^2 + 4x - 55}{x + 5}[/tex]
Expand the numerator
[tex]\frac{3x^2 + 15x - 11x - 55}{x + 5}[/tex]
Factorize:
[tex]\frac{3x(x + 5) - 11(x + 5)}{x + 5}[/tex]
Factor out x + 5
[tex]\frac{(3x- 11)(x + 5)}{x + 5}[/tex]
Cancel out x + 5
[tex]3x - 11[/tex]
Hence, the quotient is [tex]3x - 11[/tex]
Need help ill give brainliest to the correct answer
Answer:
i think that the answer is y = 3x- 1
Divide 45 pens between devika bhoomika in the ratio 4:5
Answer:
20:25
Step-by-step explanation:
add how many parts (4+5=9)
45/9=5
4*5=20, 5*5=25
therefore, 20:25
please help me i really need it
Answer:
top right is the hypotenuse, top left is a leg, bottom right is a leg
Step-by-step explanation:
Every triangle has 2 legs and 1 hypotenuse. The hypotenuse is always the longer side and across the 90 degree angle. All of the other sides would be called the legs because they are not the hypotenuse
In the diagram, the measures of 22, 23 and 26 are 40°. The measure of 21
is 140°. Are lines cand d parallel?
Answer:
c. Yes because ∠2 and ∠6 are congruent.
Step-by-step explanation:
From the picture attached,
m(∠2) = m(∠3) = m(∠6) = 40°
m(∠1) = 140°
Since (∠2 ≅ ∠6) (corresponding angles)
Therefore, by the converse theorem of corresponding angles lines c and d are parallel.
Option c is the answer.
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what is this answer i didn’t go to school for it
Answer:
-2 -1,1, and 2 only
Step-by-step explanation:
I WILL GIVE 20 POINTS PLEASE HELP ME
What’s the answer!???
answer is $30
looks like u cheating
pls help wil give brainliest!
Answer: C
Step-by-step explanation: you multiply all your numbers together to get 420 and then you divide by 2 because it is half of a rectangle to get 210.
A boat travels 32 miles in 1 hour(with a constant speed) how far can it travel in 22 hours ( with the same speed)
Basically multiply the 32 mph with the 22 hours (since its per hour, the units carry over), and you get 704 miles!
A segment has endpoints at (-2,8.4) and (2.8, 12). Find the
coordinates of the segment's midpoint.
Answer:
(0,10.2)
Step-by-step explanation:
Jiro borrows $48000 from a bank that charges simple interest at a rate of 6% per year. Find the total amount of money he has to pay the bank at the end of 2 years.
Answer:
$53760
Step-by-step explanation:
Rui Feng borrows $48 000 from a bank that charges simple interest at a rate of 6% per annum.
Now, we have to calculate the total amount he has to pay the bank at the end of 2 years.
Now, using the formula of simple interest the total amount after 2 years will be
dollars. (Answer)
What is the volume of a sphere with a radius of 6.9 ft