Sophie runs 4 1/2 miles on Saturday. Aubrey jogs 2/3 of that distance. So what is the distance Aubrey jogs in miles?
Answer:
3
Step-by-step explanation:
9. Given one of the root of the quadratic equation x^2 - 5kx+ k=0 is four times the other root, find the value of k
Answer:
k=1/4
Step-by-step explanation:
x² - 5kx+ k=0 ....(1)
suppose 2 roots: a and 4a
(x-a)(x-4a)=0
x² - 5ax + 4a² = 0 ....(2)
compare (1) and (2): -5a = -5k a=k
4a² = k 4a² = a (substitute)
a(4a-1) = 0
a = 0 or a = 1/4 (if a=0 k=0 and x=0 is not the solution)
a = 1/4 k = 1/4
(a₂ = 1/4 * 4 = 1)
Answer:
k = 1/4.
Step-by-step explanation:
Let the roots be r and 4r and using the fact that sum of the roots = -b/a and product = a/c, we have:
r + 4r = -(-5k)
r*4r = k
5r = 5k
4r^2 = k
From the 3rd equation:
r = k, therefore:
4k^2 = k
4k = 1
k = 1/4.
which statement is false? NO LINKS AND NO BLANK ANSWERS
A) all squares are rectangles.
B) all squares are parallelograms.
C) all rhombuses are squares.
D) all rhombuses are parallelograms.
Answer:
C because not all rhombuses are squares
question is in photo provided below. urgent, help please.
Answer:
x= 170°
I hope it's helps you
The mean age of 5 people in a room is 39 years.
A person enters the room.
The mean age is now 40.
What is the age of the person who entered the room?
Answer: Answer:the person entering the room is 10 years oldStep-by-step explanation:x / 5 = 40x = 40 * 5x = 200so the total of all the ages of 5 people
Step-by-step explanation:
is x=-3 a solution to 6x+4=-12
Answer:
No
Step-by-step explanation:
Six times negative three is negative eighteen and that plus four is negative 14
help needed asap will give brainliest (#^.^#)
Answer:
B. 162[tex]ft^{2}[/tex]
Step-by-step explanation:
Area= 7*6*2+3*6*2+3*7*2=84+36+42=162ft^2
This cartoon expresses a viewpoint that led to...
A) the passage of a federal statute prohibiting foreign companies from contributing to presidential campaigns.
B) a Supreme Court ruling declaring it unconstitutional for members of the same political party to serve consecutive terms as president.
C) creation of a congressional committee to investigate private presidential conduct.
D) the ratification of a constitutional amendment establishing term limits for presidents.
Answer:
D) The ratification of a constitutional amendment establishing term limits for presidents.
Step-by-step explanation:
If a president were to exceed his limits of power over the people, he would consider them as slaves, and him the king.
Answer:
D
Step-by-step explanation:
In triangle ABC , Sin angle B=14/17 . The hypotenuse of triangle ABC
A. 14
B17
C. 2sqrt(485 )
D. 0.824
Answer: A
Step-by-step explanation:
Platooo
6 cm
4 cm
9.5 cm
4 cm
6.5 cm
I need help I have to find the perimeter for this
Answer:
30 cm is the perimeter.
Step-by-step explanation:
To find the perimeter of this figure, add up all the lengths of the sides:
6 cm
4 cm
9.5 cm
4 cm
6.5 cm
-----------
30 cm is the perimeter.
Answer:
The perimeter will be 30 cm
Step-by-step explanation:
The perimeter is the distance around the composite figure.
The perimeter= 9.5+6.5+4+4+6=30 cm
perimeter=30
Can you do 0.123-0.3 PLEASE TELL ME THE ANSWER!!PLS
Answer:
hi
Step-by-step explanation:
it is -0,177
hope it helps
have a nice day
The value of expression after subtraction is,
⇒ - 0.177
What is mean by Subtraction?Subtraction in mathematics means that is taking something away from a group or number of objects. When you subtract, what is left in the group becomes less.
Given that;
Expression is,
⇒ 0.123 - 0.3
Now, We can simplify the expression by subtracting as;
⇒ 0.123 - 0.3
⇒ - 0.177
Thus, The value of expression after subtraction is,
⇒ - 0.177
Learn more about the subtraction visit:
https://brainly.com/question/17301989
#SPJ2
The drop that rider's experience on Dr. Doom's Free Fall can be modeled by the quadratic function LaTeX: h\left(t\right)=-9.8t^2-5t+39h ( t ) = − 9.8 t 2 − 5 t + 39 where h is height in meters and t in time in seconds. What is the starting height of the riders?
Answer:
The starting height of the raiders is 39 meters.
Step-by-step explanation:
Physically speaking, a free fall motion is an uniformly accelerated motion due to gravity. Mathematically, speaking the equation of motion for the height of an object under free fall is a second order polynomial (quadratic function).
Let [tex]h(t) = -9.8\cdot t^{2}-5\cdot t + 39[/tex] be the height of the riders, in meters, the starting height is the height evaluated at [tex]t = 0\,s.[/tex] Hence, we proceed to the determined the required data by direct evaluation:
[tex]h(0) = -9.8\cdot (0)^{2}-5\cdot (0) +39[/tex]
[tex]h(0) = 39[/tex]
The starting height of the raiders is 39 meters above the ground.
Charles paid 8.5% tax on his clothing purchase. He bought $30.00 worth of clothes. How much did he pay in taxes.
Answer:
2.55
Step-by-step explanation:
$30 x .085 = $2.55
Solve for all values of x by factoring.
x^2-11x+10=0
Answer:
x= 10, x=1
Step-by-step explanation:
(x-1)(x-10)=0
then solve for x
!!HELP!!
Which statement about 172° is correct?
A. sin 172° < 0
B. cos 172° < 0
C. tan 172° > 0
HELP ASAP TIMED!!!!!!!!!!!!!!!
Answer:
that's correct... 8√3 is the correct answer
Step-by-step explanation:
sin 30°=1/2
1/2=4√3/x
simplify and you're done ☺
Answer:
C = 8squareroot3
Step-by-step explanation:
x = 4squareroot3 * 2
Ms. Kay is putting $450 in the bank for 7 years. The bank has a rate of 5%. How much will she earn in interest?
Answer:
7*450*.5%
Step-by-step explanation:
question in pic!!!!!!
Sara bought shoes for $39.95 and x pairs of socks for $1.99 each. Which expression shows the total money spent?
Answer:
$39.95 + $1.99x
Step-by-step explanation:
Cost of shoes = $39.95
Cost per pair of socks = $1.99
Number of socks pairs purchased = x
Total amout spent = (cost of shoes + cost of x pairs of socks)
Cost of x pairs of socks = $1.99 * x = $1.99x
Total amount spent = $39.95 + $1.99x
Answer:
$39.95 + $1.99x
Step-by-step explanation:
Find the area of each polygon.
Answer:
1. 1+4 = 5in^2
2. 1+6 = 7cm^2
3. 8+4 = 12ft^2
4. 2(3) = 6m^2
5. 16+8 = 24yd^2
6. 5 + 10 = 15mi^2
Step-by-step explanation:
Each problem can be solved by just adding the areas of the individual simple shapes such as triangle and parallelogram.
Area of trigangle = [tex]\frac{1}{2}[/tex]*b*h
Area of parallelogram = b*h
Molly went out to dinner with her two friends. The total cost of the meal was $96.15. They used a coupon for 20% off. They paid 8.5% tax and left a 22% tip. If they split the cost equally, how much did each friend pay?
Answer: $48.24
Step-by-step explanation:
Since the total cost of the meal ate by Molly and her friends was $96.15 and they used a coupon for 20% off, paid 8.5% tax and left a 22% tip, the total amount paid will be:
= $96.15 + (20% × $96.15) + (8.5% × $96.15) + (22% × $96.15)
= $96.15 + $19.23 + $8.17275 + $21.153
= $144.70575
= $144.71
Since there are three friends, the amount that each person will pay will be:
= $144.71 / 3
= $48.24
make me laugh who ever does ill give Brainliest
hello there have 40 points on da house but please make me laugh
Answer:
well this happened to me 3rd period that made me laugh but i was in science reading about organisms and i had to read aloud and instead of organism i said orgasm and the whole class went silent for like 4 minutes and the teacher just looked at me and stared into my soul then 4 minutes later everyone moved on like nothing happened. still shaking.
Step-by-step explanation:
Answer:
hehehe have fun!
Step-by-step explanation:
just look up memes that make you die
A man walks 1 mile north. He then walks a distance heading west. If he finishes 1.7 miles from his starting point how far did he walk west
Answer:
3696 feet
Step-by-step explanation:
Answer: 1.4 miles
Step-by-step explanation:
If you sketch this out it makes a triangle and you have to find the missing side.
the formula is a^2 + b^2 = c^2
a^2 + 1^2 = 1.7^2
a^2 + 1 = 2.89
- 1 - 1
a^2 = 1.89
sqrt sqrt(1.89)
a = 1.37477
(sorry for bad drawing lol)
What is 0.123 - 0.03 PLEASSEEEE HELP
If we subtract 0.03 from 0.123 we will get 0.093
Which expression is equivalent to 6x2/3??
A. 3 x 1/3
B. 4 x 1/3
C. 8 x 1/3
D. 12 x 1/3
Please help ASAP!!
Answer:
D. 12 x 1 / 3
Step-by-step explanation:
6 x 2 / 3
= ( 6 x 2 ) / 3
= 12 / 3
= 12 x 1 / 3
calculate the base and perimeter of an isosceles triangle having area 192 cm square. ln which the ratio of base and height is 3:2
Step-by-step explanation:
Given that,
The area of an isosceles triangle, A = 192 cm²
The ratio of base and height is 3:2.
The area of a triangle is given by :
[tex]A=\dfrac{1}{2}\times b\times h[/tex]
Let base = 3x and height = 2x
So,
[tex]192=\dfrac{1}{2}\times 3x\times 2x\\\\3x^2=192\\\\x^2=64\\\\x=8[/tex]
Base = 3x = 3(8) = 24 cm
Height = 2x = 2(8) = 16 cm
Let equal sides be 16 cm and base be 24
So,
Perimeter = sum of all sides
= 16+16+24
= 56 cm
Hence, this is the required solution.
Noah buys 3 packages of pens. Each package has 4 pens and 2 black pens. Which equation can be used to find p, the total number of pens?
Answer:
3 x (4+2) =p
Step-by-step explanation:
Which equation can be used to find p, the total number of pens?
3 x (4+2) =p
3 X 4 X 2 =p
3+ (4 x 2) =P
3 +4+2 =p
total pens bought = number of pages bought x ( number of blue pens bought + number of black pens bought)
3 x (4+2) =p
40 points plus brainliest if you don't leave a link!
Answer:
b is 6
c is 8
Step-by-step explanation:
i was close i have 0.8
and 0.7
Answer:
12.5 sq units for the first answer is correct.
The second answer is 6.
The third answer is 8.
Step-by-step explanation:
The formula of a triangle is bh/2. Plug in the base and height for b and h then multiply.
1st box:
(5)(5)/2
25/2
12.5 Correct
2nd box:
(4)(3)/2
12/2
6 Final Answer
3rd box:
(4)(4)/2
16/2
8 Final Answer
An antique dealer bought 5 different antiques and had them appraised. What were the appraisals on each of the 5 antiques?
Please please please help me I really need help if you don’t know the answer move along
Find the solution to the following system. Explain how you got your
answer, step-by-step.
3x + 4y = 36
y=-1/2x+8
Answer:
(x,y)=(4,6)
Step-by-step explanation:
3x+4y=36
y=-1/2 x+8
step 1: substitute the value of y
[tex]3x+4(-\frac{1}{2}x+8)=36[/tex]
step 2: solve equation for x
[tex]3x+4(-\frac{1}{2}x+8)=36[/tex]
3x-2x+32=36
x+32=36
x=36-32
x=4
step 3: substitute the value of x
[tex]y=-\frac{1}{2} (4)+8[/tex]
Step 4: solve equation for y
[tex]y=-\frac{1}{2} (4)+8[/tex]
y=-2+8
y=6
there for the answer is
(x,y)=(4,6)