Answers
Answer:
d
Step-by-step explanation:
because -2 and going to the left means that it is less than.
Related Questions
You have 4 tickets to the movies and can take 3 of four friends, Mike, Tom, Eddie, and Chris. If chosen randomly, what is the probability that you will take Mike, Tom, and Chris?
Answers
Answer:
Hello!
You have to find the probabilities of these happening
To pick Mike the first time is a 1 /4 chance
To pick Tom after Mike is a 1 / 3 chance since you picked mike
To pick Chris after Tom is a 1 / 2 chance since there are only two friends left
To find the probability of these happening in a row you multiply them
1/4 * 1/3 * 1/2 = 1/24
The answer is 1/24
Hope this helps!
-Brinks
select two values of x that are roots of this equation (picture included)
x^2+2x-5=0
Answers
Answer:
B and D
Step-by-step explanation:
i took this test
The roots of the equation will be - 1 - √6 and - 1 + √6. Then the correct options are B and D.
What is the solution to the equation?The distribution of weights to the variables involved that establishes the equilibrium in the calculation is referred to as a result.
The quadratic equation is given below.
x² + 2x - 5 = 0
The solution of the quadratic equation will be
x² + 2x - 5 = 0
Add 1 on both sides, then the equation will be
x² + 2x + 1 - 5 = 1
x² + 2x + 1 = 1 + 5
(x + 1)² = 6
Taking square root on both sides, then the equation will be
x + 1 = ±√6
x = - 1 ±√6
Then the roots of the equation will be - 1 - √6 and - 1 + √6.
Then the correct options are B and D.
More about the solution of the equation link is given below.
https://brainly.com/question/545403
#SPJ5
329,444,000,777,234 in words
Answers
Step-by-step explanation:
Three hundred and twenty nine trillion four hundred and fourty four billion seven hundred and seventy seven thousand two hundred and thrity four
Answer:
Look at the attachment
Researchers recorded that a certain bacteria population declined from 170,000 to 200 in 42 hours. At this rate of decay, how many bacteria was there at 24 hours? Round to the nearest whole number.
Answers
Answer:
3600 bacterias
Step-by-step explanation:
From P = P'e^(-kt), where
P = final population
P' = initial population
k = decay constant
t = time in hrs
Substituting we have
200 = 170000 x e^(-42k)
1/850 = e^(-42k)
We take natural log (Ln) of both side
Ln (1/850) = Ln (e^(-42k))
-6.745 = -42k
k = 0.16059.
For amount remaining after 24 hrs we find P
P = 170000 x e^(-0.16059x24)
P = 170000 x e^-3.85416
P = 170000 x 0.02119 = 3602.3
Approximately 3600 bacterias.
What is the missing constant term in the perfect square that starts with x^2+6x
Answers
Answer:
9
Step-by-step explanation:
x^2+6x
Take the coefficient of x
6
Divide by 2
6/2 =3
Square that
3^2 =9
Add that as the constant term
Y = 3x + 9 complete a table of values
Answers
Answer: u have to cross out 3x and change into a positive and u try to find the other side of da equation. I hope dis helps :3
Step-by-step explanation:
Derrick surveyed a random sample of 100 students from his middle school to learn more about what type of school lunches are preferred. The table below shows the result of the survey:
Hamburgers Spaghetti Pizza
Sample #1 43 13 44
Sample #2 41 20 39
Which of the following inferences can be made based on the data? (5 points)
Pizza is the most preferred lunch.
Spaghetti is two times more popular than pizza.
Hamburgers and pizza are preferred almost equally.
Spaghetti is two times more popular than hamburgers.
Answers
Mark brainliest please
Answer:
Hamburgers and pizza are preferred almost equally.
Step-by-step explanation:
Both numbers are very close to each other
the formula for area of a circle is a = πr2. the radius r of the circle may be expressed as
Answers
Answer:
The formula to find a circle's area π (radius)2 usually expressed as π⋅r2 where r is the radius of a circle. The area of a circle is all the space inside a circle's circumference.
Step-by-step explanation:
1111111111!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
1 1/2 or 3/2
Step-by-step explanation:
8 1/4 divided by 5 1/2
Convert to improper fraction
33/4 divided by 11/2=66/44
Simplify this to get 1 1/2 or 3/2
What are the equivalent ratios of 5/8
Answers
Answer:
60/96
Step-by-step explanation:
Answer:
10:16 or 2.5:4
Step-by-step explanation:
sorry if i am wrong
Pollution and climate change can cause coral reefs to die. How would the medical field most likely be directly affected if corals became extinct?
More people would get cancer.
Vaccinations would no longer be available.
Hard casts could no longer be made for broken bones.
Certain cancer medications could not be produced.
Answers
Answer:
They cannot come up with new innovation in terms of medicines.
Step-by-step explanation:
Coral reefs are in some cases considered the medication cupboards of the 21st century. Coral reef plants and creatures are significant wellsprings of new meds being created to treat malignant growth, joint inflammation, human bacterial contamination, Alzheimer's illness, coronary illness, infections, and different sicknesses.
Since corals are stationary creatures, many have developed concoction barriers to shield themselves from predators. Researchers keep on inquiring about the therapeutic capability of these substances.
Later on, coral reef environments could speak to an inexorably significant wellspring of restorative medications, wholesome enhancements, pesticides, beautifying agents, and other business items.When this are affected it affects the aforesaid process and researchers
Answer:
D
Step-by-step explanation:
The surface area of a sphere is 200.96 square centimeters. What is the approximate volume of the sphere? Use 3.14 for π. Round your answer to the nearest hundredth.
Answers
Answer:
[tex]267.95 cm^3[/tex]
Step-by-step explanation:
We need to first find the radius of the sphere.
The surface area of a sphere is given as:
[tex]A = 4\pi r^2[/tex]
where r is the radius
Therefore:
[tex]200.96 = 4 * 3.14 * r^2\\\\=> r^2 = 200.96 / 12.56\\\\r^2 = 16\\\\r = \sqrt{16} \\\\r = 4cm[/tex]
The radius of the sphere is 4 cm.
The volume of a sphere is given as:
[tex]V = \frac{4}{3} \pi r^3[/tex]
Therefore, the volume of the sphere of radius 4 cm is;
[tex]V = \frac{4}{3} * 3.14 * 4^3\\\\V = 267.95 cm^3[/tex]
The volume of the sphere is [tex]267.95 cm^3[/tex]
Answer:
C: 267.95 cm3
Step-by-step explanation:
Order the rational numbers from least to greatest
Answers
Answer:
its the 3rd one
Step-by-step explanation:
you find which one is smaller and then you go to the next one up
Tu's family stayed at a hotel for 10 nights on their vacation. The hotel charged a 12.4% room tax, per night. How much did they pay in room taxes if the room cost 200 Euro per night and Tu's mother brought a coupon for 6.5% off the total room charges ?
Answers
Answer:
€ 231.88
Step-by-step explanation:
The total amount Tu's family paid for the 10 nights without the coupon = 200 × 10 = € 2000
With a Tu's mum's coupon of 6.5 % off the total room charges, the amount off = 6.5/100 × 2000 = € 130
The total amount Tu's family paid for the 10 nights with the coupon = € 2000 - € 130 = € 1870
The total room tax = 12.4 % × € 1870 = € 231.88
what is the length of a diagonal of a cube with a side length of 1 cm?
Answers
Answer:
sqrt3 or about 1.7
Step-by-step explanation:
length^2 + Width^2 + Height^2 = Diagonal^2
so 1 + 1 + 1 = 3, which when square rooted equals
sqrt3 or about 1.7
Answer:
b
Step-by-step explanation:
edg
Which expression is a difference of squares with a factor of 2x + 5
Answers
[tex]4x^2-25[/tex] is a difference of squares with a factor 2x+5
because when we factorize [tex]4x^2-25[/tex] we get [tex](2x-5)(2x+5)[/tex]
The expression is a difference of squares with a factor of 2x + 5 [tex]$4 x^{2}-25$[/tex].
What is the Difference of squares formula?Given:
2x + 5
To find:
The expression is a difference of squares with a factor of 2x + 5.
Step 1
The difference of squares formula is given by
[tex]$(a+b)(a-b)=a^{2}-b^{2}$$[/tex]
We have been given that one factor is 2x + 5.
Hence, [tex]$\mathbf{a}=\mathbf{2 x}, \mathbf{b}=\mathbf{5}$[/tex]
Step 2
It means that the other factor must be (a - b) = (2x - 5)
Hence, in order to expression, we can multiply the factors.
(2x + 5)(2x - 5)
Step 3
Using the difference of squares formula
(2x + 5)(2x - 5)
[tex]$&=(2 x)^{2}-5^{2} \\[/tex]
[tex]$&4 x^{2}-25[/tex]
The required expression exists [tex]$4 x^{2}-25$[/tex].
Therefore, the correct answer is [tex]$4 x^{2}-25$[/tex].
To learn more about difference of squares formula
https://brainly.com/question/1973152
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The area of a rectangle is 2r^2 + r – 1. The length is 2r – 1. What simplified expression represents the width?
Answers
Answer:
The width is (r+1)
Step-by-step explanation:
2r^2+r-1
(2r-1)(r+1)
2/7 as a percent to the nearest whole number
Answers
The measure of an angle is 17°. What is the measure of its complementary angle?
Answers
Answer:
73°
Step-by-step explanation:
the measure of two complementary angles add up to 90
so We need to solve this equation to get the measure of its complementary angle :
x + 17 = 90
then
x = 90 - 17
= 73
What is the distance between the points (4, 5) and (10, 13) on a coordinate plane?
A. 10 units
B. 14 units
C. 12 units
D. 8 units
Answers
Answer:
10
Step-by-step explanation:
Distance = √(x2-x1)² + (y2-y1)²
d = √(10-4)² + (13-5)²
d = √6² + 8²
d = √36+364
d = √100
d = 10
compound interest: if 1000$ is compounded continuously at 3% interest, how much money will you have in 5 years? (use the growth formula y=Ce exponent of kt)
Answers
Answer:
The money you will have in 5 years: 1000 x (1 + 3/100)^5 = 1159.27$
Hope this helps!
:)
Need help ASAP. WILL MARK BRAINLIEST.
Answers
Answer:
circumference is diameter x pi
radius + radius = diameter
11+11=22
22 x pi = 69.11503837897545
If you just use 3.14
3.14 x 22 = 69.08
Step-by-step explanation:
Diana is building a pig pen. The area of the land is 780 feet. The length of the pen is 26 feet. What is the width?
Answers
Step-by-step explanation:
The pig pen is a rectangle. To find the area of a rectangle the formula is A=bh. Since you don’t have the height you would have to A ÷ b=h. So 780÷26=30 feet.
The width is 30 feet.
What is the volume of a rectangular prism with a length of 2 inches, a width of an inch & is a quarter of an inch in height?
Answers
Answer:
= 1/2 inches ^3
Step-by-step explanation:
The volume of a prism
V = l*w*h
= 2 * 1 *1/4
= 1/2 inches ^3
Answer:
[tex] = \frac{1}{2} {in}^{3} [/tex]
Step-by-step explanation:
[tex]v = whl \\ = 1 \times \frac{1}{4} \times 2 \\ = \frac{2}{4} \\ = \frac{1}{2} {in}^{3} [/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
factor the polynomial 8x-2
Answers
Answer:
[tex]2(4x-1)[/tex]
Step-by-step explanation:
you divide by 2 and simplify. idk how else to explain it....
Answer:
2(4x-1)
Step-by-step explanation:
Factor out a 2
Find the volume of a cylinder if the radius is 5 in. and the height is 20 in.
Answers
Answer:
V=πr^2h
V = ?
π = 22/7
r = 5
h=20
V = 22/7× 5^2× 20
V = 11000/7
V = 1571.42
The Volume is approximately 1571cm^3
Step-by-step explanation:
Which best describes the transformation that occurs from
the graph of f(x) = x² to g(x)=(x-2)²+3
Answers
Answer:
The graph changes from the original position to right 3 units and down 1 unit.
I hope this helps. If you have any more questions, please feel free to post them and someone will be able to help you, whether it's myself or others. Please leave a like, rating, and if possible, Brainliest. Have a great day!
maya was asked whether the following equation is an identity (2x+3)(x+1) = 2(x+1)^2 + (x+1)
Answers
Answer:
Maya is correct.
Step-by-step explanation:
Khan Academy gave me the answer.
A Bag contains eight red marbles and eight blue marbles. You randomly pick a marble and then return it to the bag before picking another marble. Both the first and second marbles are red.
Answers
Answer:
1/4
Step-by-step explanation:
A bag contains a total of 16 marbles
Red marbles = 8
Blue marbles = 8
The question says you pick randomly one marble and you return before picking another marble , which means, there is replacement.
Probability of picking the first red marble = 8/16
Probability of picking the second red marble = 8/16
Probability that both the first and second marble is red = 8/16 × 8/16
= 64/256 = 1/4
Therefore, the probability that both the first and second marbles are red = 1/4
What is the best name of the solid that can be formed by this net?
O rectangular pyramid
tetrahedron
O rectangular prism
triangular prism
Save and Exit
Answers
Answer:triangular prism I think
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
