Both Amy and Ed travel 100 miles to their destination. They begin at the same
time, but Amy drives at 50 miles per hour and Ed drives at 40 miles per hour.
How much sooner will Amy arrive to the destination than Ed?
Answer:
Since there are two cars, each car, then, drove 104/2 = 52 miles. But one car is traveling 8 miles per hour faster.
Step-by-step explanation:
Given that p(-3) = 0, p(-1) = 0, and p(5) = 0, which expression could be p(x)?
A) x3–x2–17x –15
B) x3+ x2–17x + 15
C) x3–3x2–13x + 15
D) x3–9x2+ 23x –15
Answer:B
Step-by-step explanation:
The expression which satisfies all three points will be x³–x²–17x –15.
What is an expression?
Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division.
The given points are p(-3) = 0, p(-1) = 0, and p(5) = 0,
So checking the points in the function:-
P(x) = x³–x²–17x –15.
p(-3) = (-3)³–(3)²–(17x-3) –15 = -27 - 9 + 51 -1 5 = 0
p(-1) = (-1)³– (-1)²–( 17x -1) –15 = -1 -1 + 17 - 15 = 0
p(-5) = (5)³–(5)²–(17x5) –15. = 125 - 25 -85 - 15 = 0
Therefore the expression which satisfies all three points will be x³–x²–17x –15.
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A tetrahedron is a triangular pyramid whose four faces are identical equilateral triangles. The total lateral surface area is 93 square centimeters. Find the surface area of the tetrahedron.
Answer:
Step-by-step explanation:
The total area is four times a face area and the lateral area is three times a face area.
Let x be the total surface area then
x/93=4/3
x=4(93)/3
x=372/3
x=124 cm^2
4.) A bag contains colored tiles.
.
3 tiles are red
6 tiles are green
3 tiles are blue
.
A tile will be randomly selected from the bag. What is the probability in decimal form that the
tile selected will be green?
F
0.6
G
0.33
H 0.5
J 0.75
Answer:
H.
Step-by-step explanation:
Answer:
AHHHH
Step-by-step explanation:
AHHH
how do i solve this and what is the answer?
Answer:
I totally get why you are asking , how do I solve this. there is so much implied about this
Step-by-step explanation:
1st you have to recognize that ∠ACB ( in my drawing ) has that same angle as the arc from A to B , so that's implied. next you have to recognize that the triangle formed by ACB with the 124 degree angle at C is an isosceles and therefore has identical angles at A and B so that's 180 = 124 + 2A , so A = 28° and so does B , then , b/c we know that small angle... you also have to know, that the line AC is perpendicular to AD. that they from a right angle and there for... you now know , that ∠BAD is the other part of that 90 or 90= 28 + ∠BAD so ∠BAD = 62°
I went through that kinda fast, there was several "leaps" of using logic to get to the correct answer , using things you know from prior understanding about angles , circles and geometry, you are putting all of the parts together here. :/ kinda daunting in some ways.
Solve the quadratic equation given below.
(12x – 27)^2 = 256
Answer:
x
2
+
12
x
−
64
=
0
⟹
x
2
+
12
x
=
64.
x
2
+
12
x
=
64
⟹
(
4
∗
1
)
(
x
2
+
12
x
)
=
(
4
∗
1
)
64
⟹
4
x
2
+
48
x
=
256
All this is straight forward. This method now requires you to add the square of the original coefficient of x to both sides of the equation.
The original coefficient is 12 so its square is 144.
4
x
2
+
48
x
=
256
⟹
4
x
2
+
48
x
+
144
=
256
+
144
=
400
⟹
4
(
x
2
+
12
x
+
36
)
=
20
2
⟹
2
2
(
x
+
6
)
2
=
20
2
.
Step-by-step explanation:
Answer:
x=43/12, 11/12
Step-by-step explanation:
Please help. Dont put a random answer plz.
Answer:
Explination:
Work:
In how many ways can a teacher seat 5 girls and 2 boys in a row of 7
seats if a boy must be seated in the first seat and a girl in the last seat.
Answer:
I Don't Know
Step-by-step explanation:
Sry!!!Sry!!!Sry!!!Sry!!!Sry!!!Sry!!!Sry!!!Sry!!!Sry!!!Sry!!!Sry!!!Sry!!!Sry!!!Sry!!!Sry!!!Sry!!!Sry!!!Sry!!!Sry!!!Sry!!!Sry!!!Sry!!!Sry!!!Sry!!!Sry!!!Sry!!!Sry!!!Sry!!!
1,2,3 or 4
Thank you!
Answer:
Option 3
Step-by-step explanation:
I need help ASAP will mark the brainliest
Answer:
addition property
Step-by-step explanation:
Logan is going to invest $61,000 and leave it in an account for 20 years. Assuming
the interest is compounded continuously, what interest rate, to the nearest
hundredth of a percent, would be required in order for Logan to end up with
$103,000?
Answer:
its 2.62
Step-by-step explanation:
Answer:
its 2.62
Step-by-step explanation:
Solve for x in the equation 2x2 + 3x-7 = x2 + 5x+39
Answer: x=1+√47 or x=1−√47 (Assuming that the "2x2" is 2x^2)
Step-by-step explanation:
Step 1: Subtract x^2+5x+39 from both sides.
2x2+3x−7−(x2+5x+39)=x2+5x+39−(x2+5x+39)
x2−2x−46=0
For this equation: a=1, b=-2, c=-46
1x2+−2x+−46=0
Step 2: Use quadratic formula with a=1, b=-2, c=-46.
x=1+√47 or x=1−√47
Answer:
The reviews upon the bottom and such were confusing, but for the edge test, the answer is ;
d. x = 1 +/- _/47
Step-by-step explanation:
edg- answers ;p
HELP ASAP PLS!!
what is composite area?? How do we use it in the real world???
Answer:
A composite figure (or shape) is one that can be separated into more than one of the basic figures. Examples of using it in the real world is building cars or houses.
You are the manager of a restaurant that delivers pizza to college dormitory rooms. You have just changed your delivery process in an effort to reduce the mean time between the order and completion of delivery from the current 21 minutes. A sample of 36 orders using the new delivery process yields a sample mean of 22.4 minutes and a sample standard deviation of 6 minutes.
A.) Please compute the test statistic. Please round to four decimal places.
B.) Please determine the p-value. Please round to four decimal places.
C.) Using a 0.05 level of significance, please provide the critical value for the appropriate test. Please round to four decimal places.
D.) Using a 0.05 level of significance, is there evidence that the population mean delivery time has been reduced below the previous population mean value of 25 minutes?
Answer:
1.4000 ;
0.0807 ;
1.69 ;
Fail to reject the Null
Step-by-step explanation:
Given :
μ = 21 minutes
x = 22.4 minutes
Sample size, n = 36
Standard deviation, s = 6
H0: μ ≥ 21
H1: μ < 21
Test statistic : (x - μ) ÷ s/sqrt(n)
Test statistic : (22.4 - 21) ÷ 6/sqrt(36)
Test statistic : 1.4 ÷ 1
Test statistic = 1.4000
Pvalue : Using the Test statistic value at α = 0.05 ; One - tail test = 0.0807
The t critical value using a critical value calculator ; DF = (n - 1) = 36 - 1 = 35 ; α = 0.05 = 1.69
Decision region :
Reject H0 if
|Test statistic| > |critical value|
1.4 < 1.69
Hence, we fail to reject H0
There isn't enough evidence they delivery time has been reduced below previous mean
Please help look at picture and round to the nearest tenth
Answer:
5) 4.4 in
6) 12 km
7) 10 cm
8) 2 cm
Step-by-step explanation:
5) 8.8/2 = 4.4
6) 24/2 = 12
7) 20/2 = 10
8) 4/2 = 2
Answer and Step-by-step explanation:
To find the radius, you simply divided the diameter of the circle by 2.
5.
8.8 divided by 2 equals 4.4 in.
6.
24 divided by 2 equals 12 km.
7.
20 divided by 2 equals 10 cm.
8.
4 divided by 2 equals 2 cm.
#teamtrees #PAW (Plant And Water)
10 points
Write an equation of the line in slope-intercept form -5,1) 0,-3) A) y=-4/5x-3 B) y=-4/5x+3 C) y=-5/4x-3 D) y=-5/4xt3
Answer:
A
Step-by-step explanation:
slope rise/run= -4/ 5
plugging it in we get
y= -4/5x+b
-3=-4/5x+b
-3= -4/5(0) +b
-3=0+b
b=-3
so we get y= -4/5x-3
or A
if my answer helps please mark as brainliest.
Factor 24j-16 to identify the equivalent expressions. Its multiple choice. A=8(3j−2) B=6(4j−2j) C=4(6j−4) D2(12−8)
Answer:
I would say either A or C
Step-by-step explanation:
because when you distribute both they both come out to be 24j - 16
Door
½ gallon per 2 doors
Bench
⅓ gallon per bench
Austin has 4 gallons of paint. He painted 8 doors. How many benches can he paint with the paint that is left? Show your work. Use the chart to help you.
Answer:
77
Step-by-step explanation:
that is the answer i got i did a quiz with the same question not too long and i got a 100 and i putt 77 aas my answer!!!!!!!!1
How do you divide 336 by 6 by long dvision step by step?
Answer:
56 is your answer
Step-by-step explanation:
336/6=(56×3)/3=56
HELP PLEASE!!!!!! PLEASE!!!!
Answer:
x = 15°
Step-by-step explanation:
7x + 28° = 133° { being vertically opposite angles }
7x = 133° - 28°
7x = 105°
x = 105° / 7
x = 15°
< WPZ = 133° {being vertically opposite angles }
OR
< WPZ = 7x + 28° = 7 * 15 + 28° = 133°
Hope it will help :)❤
OK WHAT IS THE FRACTION FORM OF THE RATIO 1:3
Answer:
Part A is 1/4
Part B is 3/4
Step-by-step explanation:
1(A):3(B)
brainliest?
I don't know how to find this angle.
Answer:
i think it is at least sum where between the 30s and 40s
Step-by-step explanation:
A rectangular pool has a width of 24 feet. A second rectangular pool has a perimeter of 48 feet, which
is __1
3
the perimeter of the first pool
Answer:
Let x = the length
Let P = the perimeter of the first pool
48 = (1/3)P
144 feet = P
P = 2l + 2w
144 = 2x + 2(24)
144 = 2x + 48
96 = 2x
48 feet = x
geometry question pls help!!!
Answer:
First option is the correct answer
Step-by-step explanation:
Multiply the area of the circle by [tex] \frac{360\degree - x}{360\degree} [/tex]
Someone please help:)
Answer:
2. Addition property of inequality. You're adding 6x to both sides.
3. 4x = 28
4. 4x/4 = 28/4 Justification: Division property of inequality
You're dividing both sides by 4.
5. x = 7
Hope that helps.
Which equation would you use to solve the problem?
If S = 42° and ST = 8, find RS.
Answer:
c
Step-by-step explanation:
subtract and write the difference in simplest form 12 5/8 - 7 1/3
Answer:
5 7/24
Step-by-step explanation:
Given the following mathematical expression;
12 5/8 - 7 1/3
First of all, we would subtract the whole numbers;
12 5/8 - 7 1/3 = (12 - 7) 5/8 - 1/3
12 5/8 - 7 1/3 = 5 [5/8 - 1/3]
Next, we subtract the fractions from each other;
5/8 - 1/3
Lowest common multiple (lcm) = 24
5/8 - 1/3 = (15 - 8)/24
5/8 - 1/3 = 7/24
Combining the two parts, we have;
12 5/8 - 7 1/3 = 5 7/24
Helpppppñoppopp it’s due in an hour
Answer:
1526.8...........hope this helps:)
PLEASE HELP!!!!!!!!!!! A clown has two performances today, in cities A and B, which are 240 km apart. The clown drives from City A to City B at a certain speed and performs. On his way back to City A, he drives half the distance at the same speed as before, but then increases his speed by 10 km/h to be on time for his performance in City A. Thus, the drive from B to A takes 2/5 of an hour less than the drive from A to B. At what speed does the clown drive from A to B?
Answer: 50 km/hr
240 = rt
120 = rt1
120 = (r+10)t2
t1 + t2 = t - 2/5 ==> t2 = 1/2 t - 2/5
So you get
240 = rt
120 = (r + 10)(1/2 t - 2/5)
Solve the system
You het 50 km/hr
Find the measure of the supplement of a
16° angle.
Answer:
164
Step-by-step explanation:
Hey There!
If they are supplementary angles then they will add up to equal 180
So given one of the angles (16) we subtract that from 180 to find the value of the missing angle
180-16=164
Your answer is 164
Hope this helps :)