Step-by-step explanation:
i. Looking at the table, he got 3 odd numbers out of 9 scored so the probability is 33% or 3/9 or 1/3
ii. He got 4 square numbers so the probability is 4/9( remeber 0 is a square number).
iii. Only two number are multiples of 5 so the probability is 2/9.
iv. No number is greater than 15 so the answer is 0%
v. 5 numbers are less than zero so the answer is 5/9
[tex]\sqrt{25-10\sqrt{3}+3 }[/tex]
Which choice represents the simplified exponential expression?
(8^7)^5
Answer:
8^35
you multiply exponents of exponents meaning we multiply 7*5 which is 35
Step-by-step explanation:
Help
Will
Give BRIANLIST
Answer:
area of the figure=length×width
=6(X+6)
=6x+36 sq feet
answer is the second option
Answer:
B is the answer. This gives us the equation 6(x+6), where we multiply 6 by both values inside the equation. 6x + 36 is the answer. Happy learning!
Happy learning!
--Applepi101
Your mother buys a new mirror for your home. It has a radius of 32.5 centimeters
Using the formula: C= (pi) x d
What is the circumference of the mirror?
can someone pls help for brainlest
Answer:
270
Step-by-step explanation:
24 times 30, divided by 2 (360)
then subtract 12 times 15 divided by 2 (90)
Question 3 Look at the diagram below. If XY = 7 and XZ = 30, what is the value of t? 7 2t - 1 X Y Z
Answer:
Step-by-step explanation:
go to brainly.com
the ratio of berries to oranges is 10:1
If they are 25 oranges how many berries are there?
Answer:
250
Step-by-step explanation:
create a proportion based on 10 berries to every one orange:
let 'b' = # berries
10/1 = b/25
cross-multiply to get:
b = 10(25)
b = 250
Three friends go to the movies and spend a total of $75.00. Each friend bought a ticket and a small popcorn that cost $8.25 how much was each ticket
Given:
Total amount spend on movie = $75
Each friend bought a ticket and a small popcorn that cost $8.25.
To find:
The price of each ticket.
Solution:
Let x be the price of each ticket.
Total cost of ticket and popcorn of each friend [tex]=x+8.25[/tex]
Total cost of ticket and popcorn of three friend [tex]=3(x+8.25)[/tex]
It is given that, the total amount spend on movie is $75. So,
[tex]3(x+8.25)=75[/tex]
[tex]x+8.25=\dfrac{75}{3}[/tex]
[tex]x+8.25=25[/tex]
Subtract 8.25 from both sides.
[tex]x=25-8.25[/tex]
[tex]x=16.75[/tex]
Therefore, the cost of each movie ticket is $16.75.
hey pls help asap
it's urgent due within 1 hr
Answer:
I. C. Both A and B
II. D. All of the options
III. B. Help in making people a valuable resource
WILL
GIVE
BRAINLIST
Solve
EIGHT TIMES a number, added to 4, is -4. Find the number
Answer:
The number is -1.
Step-by-step explanation:
Set up an equation:
Variable n = number
8 × n + 4 = -4
Use PEMDAS
8n + 4 = -4
Isolate the variable:
8n = -8
n = -1
Check your work:
8 × -1 + 4 = -4
-8 + 4 = -4
-4 = -4
Correct!
Answer:
-1
Step-by-step explanation:
Write out the equation in numbers.
1. Eight times a number = 8x
2. Added to four = +4
3. Is -4 = =-4
4. Now put it together- 8x + 4 = -4
5. Subtract 4 from each side- 8x = -8
6. Divide both sides by 8- x = -1
Solve x2 + 8x + 7 = 0 by completing the square. Which equation is used in the process?
Answer: x = -1, -7
Step-by-step explanation:
I used internet
Answer:
x = -1 or x = -7
Step-by-step explanation:
x^2 + 8x + 7 = 0
x^2 + 8x + ____ = -7 + ____
To complete the square, we add the square of half of the x-term coefficient to both sides.
x-term coefficient: 8
half of it: 4
square it: 4^2 = 16
We add 16 to both sides.
x^2 + 8x + 16 = -7 + 16
(x + 4)^2 = 9
x + 4 = +/- sqrt(9)
x + 4 = 3 or x + 4 = -3
x = -1 or x = -7
. If one of the zeroes of the quadratic polynomial (k-1) x2 +k x +1 is -3 then what is the value of k?
Answer:
k = 1¹/₃
Step-by-step explanation:
Comparing (k-1)x² + kx + 1 with ax + bx + c where α, β be the zeroes of the quadratic equation, then
α + β = -b/a = -k/(k - 1) and αβ = c/a = 1/(k - 1)
Since one of the zeros is -3, β = -3
So,
α + β = -k/(k - 1)
α + (-3) = -k/(k - 1)
α - 3 = -k/(k - 1) (1)
and
αβ = 1/(k - 1)
-3α = 1/(k - 1) (2)
From (1), α = 3 - k/(k - 1) (3)
Substituting equation (3) into (2), we have
-3α = 1/(k - 1)
-3[3 - k/(k - 1)] = 1/(k - 1)
-9 + 3k/(k - 1) = 1/(k - 1)
-9 = 1/(k - 1) - 3k/(k - 1)
-9 = (1 - 3k)/(k - 1)
cross-multiplying, we have
-9(k - 1) = 1 - 3k
expanding the brackets, we have
-9k + 9 = 1 - 3k
collecting like terms, we have
-9k + 3k = 1 - 9
-6k = -8
dividing through by -6, we have
k = -8/-6
k = 4/3
k = 1¹/₃
Ms. Li opened a retirement account with adeposit of $2,500. This account earns 4% simple interest annually. How many years will it take her to earn $500 on her $2,500 deposit?
Answer:
5 years
Step-by-step explanation:
Use the simple interest formula: I = prt
Plug in 500 as I, since that is the amount of interest being earned.
Plug in 2,500 as P and 1.04 as r.
I = prt
500 = (2,500)(0.04)t
500 = 100t
5 = t
So, it will take 5 years to earn $500 on the deposit.
Anyone know the answer ?
Answer:
is the name of your school alpha omega, because i recogize the bottom of the page
Step-by-step explanation:
BRAINLIEST PLEASE HELP!
Write the standard equation for the circle center (-6 -8) that passes through (0 0)
Answer:
(x + 6)² + (y + 8)² = 100
Step-by-step explanation:
The standard equation for a circle is (x - a)² + (y - b)² = r²
If you find the r² of this circle, you will get 100, and there's just one equation with 100
Find measure of angles B, E, D and C and the length of BC.
Triangle ABC ~ Triangle DEF. Measure of angle A = 30 degrees and measure of angle F = 65 degrees. AB=20, DE = 35, EF= 28.
Answer:
< B = 180-30-65=85°
< E = 85°
< D = 30°
< C = 65°
BC = 20/35 × 28 = 16
Answer:
<D = 30
< C = 65
<B = <E = 85
16 = BC
Step-by-step explanation:
ABC ~ Triangle DEF
<A = <D = 30
< C = <F = 65
Since they are similar triangles
A+ C + B = 180 since the angles of a triangle = 180
30+65+B =180
95+ B = 180
<B = 180 -95 = 85
<B = <E = 85
The triangles are similar so the sides are proportional
AB BC
---- = ---------
DE EF
20 BC
---- = ---------
35 28
Using cross products
20*28 = 35 BC
Divide each side by 35
20*28/35 = 35/35 BC
16 = BC
9. A sector of a circle has central angle
[tex] \frac{\pi }{4} [/tex]
and area
[tex] \frac{49\pi}{8} [/tex]
[tex] {cm}^{2} [/tex]
. Find the radius of the circle
Answer:
Step-by-step explanation:
Begin with the formula for the area of a sector:
[tex]A=\frac{\theta}{2\pi}*\pi r^2[/tex] and we are given everything except the radius, r. Filling in what we know:
[tex]\frac{49\pi}{8}=\frac{\frac{\pi}{4} }{2\pi}*\pi r^2[/tex] and then start the simplification process. I began by dealing with the fraction over a fraction thing, which simplifies the equation to:
[tex]\frac{49\pi}{8}=\frac{1}{8}\pi r^2[/tex] then isolate the r-squared:
[tex]\frac{8(49\pi)}{8\pi}=r^2[/tex]. Canceling out the π's and the 8's leaves us with simply
r² = 49 so
r = 7
A woman received 5 per cent interest on a loan of $300 for 1 year. How much interest did she receive? $5 $15 $30 $150 none of these
Answer:
15$
Step-by-step explanation:
this is because if you use our formula of I= prt
we can substitute our varibles for our equation
I= 300 x 0.05 x 1
we turn 5 in 0.05 to represent out rate, due to this our rate would have to be Simplified into a percent then a decimal
after this if we now proceed through our equation we will get
I = 300 x 0.05 x 1
I = 15
What is the simplest radical form of the expression?
(8x^7y^4)^2/3
Answer:
[tex]4x^4y^2\sqrt[3]{x^2y^2}[/tex]
Step-by-step explanation:
Recall that [tex]a^{(\frac{b}{c})}=\sqrt[c]{a^b}[/tex].
Therefore, we have:
[tex](8x^7y^4)^{\frac{2}{3}}=\sqrt[3]{(8x^7y^4)^2}[/tex]
Use the exponent property [tex](a^b)^c=a^{(b\cdot c)}[/tex] to simplify:
[tex](8x^7y^4)^{\frac{2}{3}}=\sqrt[3]{(8x^7y^4)^2}=\sqrt[3]{64x^{14}y^8}=\boxed{4x^4y^2\sqrt[3]{x^2y^2}}[/tex]
Please please help me
Answer:
The perimeter of the figure will be 62.8 or B
Step-by-step explanation:
1) The radius is 10
2) Perimeter basically means circumference
3) The formula for circumference is 2πr
4) 2π*10
5)2*pi=6.28*10=62.8
The radius of a circle is 2 meters. What is the area of a sector bounded by a 135 degree arc? Give the exact answer in simplest form
Answer:
Area of circle bounded by a 135 ° arc is 4.71 m ²
Step-by-step explanation:
Given that :-Radius of circle, r = 2 m
Angle of the circle , θ = 135 °
To Find :-Area of circle bounded by a 135 ° arc.
Solution :-Using Formula
Area of circle = θ/ 360 × π × r ²
substitute the values,
Area of circle = 135 /360 × 3.14 × ( 2 m) ²
solve it
Area = 27 / 72 × 3.14 × 4 m ²
Area = 27 / 18 × 3.14
Area = 1.5 × 3.14
Area = 4.71 m ²
Therefore, Area of circle bounded by a 135 ° arc is 4.71 m ²
Answer:
it's 3/2pi
Step-by-step explanation:
.
What is the equation of the line that passes through the point (4, -2) and has a slope of -2???
Answer:
.
Step-by-step explanation:
Answer:
y=mx+c
Step-by-step explanation:
Clara solved the equation
7
3
x = −
2
3
Answer:
hope it is helpful to you
PLEASE HELP ME WITH THIS QUESTION AND SHOW YOUR WORK
can someone help me please with solution
Find the measurements of angle WXZ, XZW, and XWZ
Answer:
WXZ = 123
XZW = 28.5
XWZ = 28.5
Step-by-step explanation:
A shirt originally $38.00 is on sale for 25% off. What is the discounted price?
Step-by-step explanation:
$ 28.50
minus $ 0.00
FINAL Price » $ 28.50
Note: Sales Tax Not Included
Savings » $ 9.50
Effective % Off » 25%
Answer:
$28.5
Step-by-step explanation:
100% - 25% = 75% (so you don't have to add or subtract anything)
38 * .75 = 28.5
=$28.5
Tony runs to keep fit ,he wants to run a total of 20 km each week. Here are the distance tony ran last week 7.75km 5km 750m 61\2 km did tony run 20 km last week?
Answer:
yes
Step-by-step explanation:
Add all the distances ran last week
7.75
+
5km
+
0.75 (1000m = 1km) 750 / 1000 = 0.75km
+ 6.5
= 20 km
Plz Help! Ill give brainiest to whoever answers!!!
1. 54
2. 63.5
3. 23
4. 1.80125
Answer: Just find the mean by using math
Step-by-step explanation:
3x=1/81 what is the value of x?
Answer:
hello
3x = 1/81
x = 1/ 81*3
x = 1/243
Step-by-step explanation:
Answer:
x=(1/81)/3
x=1/243
Step-by-step explanation: