Answers
Answer:
-2.1
Step-by-step explanation:
its a 0.1 step.
hope you understand
Related Questions
find 2 cube number that is greater then 20 but less than 50
Answers
[tex] 20\leqslant x {}^{3} \leqslant 50[/tex]
[tex] \sqrt[3]{20} \leqslant x \leqslant \sqrt[3]{50} [/tex]
[tex]2.714 \leqslant x \leqslant 3.684[/tex]
[tex]x = 3[/tex]
[tex]x = 3.5[/tex]
verify your answer:[tex]3 {}^{ 3} = 27 [/tex]
[tex] 20\leqslant27 \leqslant 50[/tex]
[tex]3.5 {}^{3} = 42.875[/tex]
[tex]20 \leqslant 42.875 \leqslant 50[/tex]
Ralphie is taking a ten-question multiple choice test. Each question has five choices. If Ralphie answers a question
correctly, he earns one point; if he answers incorrectly, he loses half a point. Ralphie answers the first six questions
correctly, then guesses on the last four. What is the expected value of his test score? Round the answer to the nearest
whole percent.
Answers
Using the binomial distribution, it is found that the expected value of his test score is of 6.8.
What is the binomial probability distribution?It is the probability of exactly x successes on n repeated trials, with p probability of a success on each trial.
The expected value of the binomial distribution is:
E(X) = np
In this problem, the parameters are given as follows:
For the first 6 questions, n = 6 and p = 1.For the last 4 questions, n = 4 and p = 1/5 = 0.2.Hence, the expected score is given by:
E(X) = 6 x 1 + 4 x 0.2 = 6.8.
More can be learned about the binomial distribution at https://brainly.com/question/24863377
Answer:
A.
Step-by-step explanation:
"Twice the reciprocal of a number plus six equals two thirds." Create an equation and find the number.
Answers
Answer:
1/x + 6 = 2/3
x is the number, so there it has to be switched if a reciprocal happens. :) hope this helps
17) y=-2(x-3)^2+8
Vertex: ____
Y-intercept(plug-in 0): ____
18) y=4x^2-8x-5
a=__ b=__ c=__
1. Circle: Graph upwards/downwards
2.Vertical Axis of Symmetry
X=-b/2a
X=__
3.Vertx (plug in axis of symmetry):
4. Y-intercept (plug in 0):(0,_)
5. X-intercepts (Solve by any method):
X=__,__
6.Graph the equation below:
Answers
Answer:
17. vertex (3,8)
y intercepts = -10
18. a=4,b=-8,C=-5
1. graph downwards
2.x=1
3.vertex(1,-9)
4.y intercept = -5
5.x = -1/2 or X = 5/2
They are 1,236 oysters in a tub. If Lee gives Chris half of her oysters how many will remain in the tub?
Answers
Answer:
618
Step-by-step explanation:
half means you divide by 2.
so 1,236/2=618
hope this helps
Answer:
618 oysters
Step-by-step explanation:
Given :
1,236 oysters in a tubGives Chris half of her oystersSolving :
half refers to dividing the number of oysters by 2 or multiplying by 1/2⇒ 1,236 / 2⇒ 618 oysters remainneed some help I'm stuck on this question in the image
thank you
Answers
B=5
C=3
I think this is the right answer
how many degrees is 7/9 of a semicircle
Answers
Answer:
140
Step-by-step explanation:
A semicircle is 180 degrees
7/9x180=140
Answer: 7/9 degrees = 0.00216 cir
Step-by-step explanation:
The angle in circles is equal to the degrees divided by 360. ( For example, here's how to convert 500 degrees to circles using the formula above.500° = (500 ÷ 360) = 1.388889 cir)
A baker mixes 8\frac{3}{4}8
4
3
cups of white flour with 2\frac{1}{2}2
2
1
cups of rye flour for a bread recipe.
How many cups of white flour does the baker mix for every 11 cup of rye flour?
Answers
Fractions are written as the ratio of two integers. 3 1/7 cups white flour will be needed for every 11 cup of rye flour
Ratio and proportionFractions are written as the ratio of two integers. If a baker mixes 8 3/4 cups of white flour with 2 1/2 cups of rye, the number of cups of rye needed for 1 cup ofwhile flour will be:
For 1 cup of flour = (2 1/2)/(8 3/4)
For 1 cup of flour = (5/2)/(35/4)
For 1 cup of flour = 5/2 * 4/35
For 1 cup of flour = 2/7 cups of rye
For 11 cups:
For 11 cup of rye flour = 11 * 2/7
11 cup of rye flour = 22/7=3 1/7 cups
Hence 3 1/7 cups white flour will be needed for every 11 cup of rye flour
Learn more on ratio and proportion here:https://brainly.com/question/2914376
Spencer cut a square cake vertically to make two rectangle slices. Each rectangle had a perimeter of 27 inches. How long is each side of the original square cake?Solve on paper.Each side of the original square cake is 9 in. What is the area of the original square cake?
Answers
Answer:
81 square inches. square have equal length for all sides area for square is any side times another side so 9x9=81
Farm A has 120 sheep. of the sheep have lambs. Some of the sheep have 1 lamb and some of the sheep
have 2 lambs. The ratio of the sheep who have 1 lamb to the sheep who have 2 lambs is 3:5.
(a) What fraction of the sheep who have lambs on farm A have 2 lambs?
Answers
Answer:
75/120 = 15/24 = 5/8
Step-by-step explanation:
3 + 5 = 8 There are 8 parts
120 / 8 = 15
15 X 5 = 75
There are 75 sheeps with 2 lambs
The total number of sheep having 2 lambs in farm A is [tex]0.625[/tex].
To find the fraction of the sheep who have lambs on farm A have 2 lambs, we need to have the total number of sheep having 2 lambs in farm A.
How to determine the fraction of sheep?
According to the question, the ratio of the sheep having 1 lamb and 2 lambs is [tex]3:5[/tex] and the total number of sheep is 120.
So, the total number of sheep having 2 lambs in farm A is calculated as-
[tex]L_2=\dfrac{5}{3+5}\times 120\\=5\times 15\\=75[/tex]
Now, the fraction of the total number of sheep having 2 lambs in farm A is-
[tex]F=\dfrac{75}{120}\\=0.625[/tex]
Thus, the total number of sheep having 2 lambs in farm A is [tex]0.625[/tex].
Learn more about fractions here- https://brainly.com/question/10354322
#SPJ2
Expand and simplify 2(x+7)+3(x+1)
Answers
To solve this function, we must add like terms until there is nothing that we can add, multiply, subtract, divide, or simplify
[tex]2(x+7) +3(x+1) = 2x + 14 + 3x + 3 = 5x + 17[/tex]
Hope that helps!
Steps:
1. Distribute the numbers on the outside of the parentheses to one’s on the inside
2. Then combine the like terms. Such as 3x and 4x.
3.Simplify if needed.
In this case after combining like terms it is the simplest this equation will get because you can’t combine 5x with 17. They aren’t like terms.
2(x +7)+3(x +1)
= 2x+14+3x+3
= 5x+17
Hope this helps! :)
Which of the following is true about quantitative research? Group of answer choices It offers conclusions that are always correct. It is always conducted using primary data collection. It includes focus group interviews. It revises the research objective based on data mining. It confirms insights and hypotheses generated via qualitative research.
Answers
PLSPLSPLSPLSPLSPLSPLSPLS
Answers
Answer:
reason
1. symmetrical property
sides can be interchanged and its still true
statement
1. if triangle kjm is congruent to klm
then klm is congruent to klm
reason
2. reflexive property
triangle is congruent to itself
statement
2. triangle kjm is congruent to triangle kjm
reason
3. transitive property
if the 1st 2 triangles are congruent to each other and congruent to a third
then the first triangle is congruent to the third triangle
statement
3. if kjm is congruent to klm and
klm is congruent to abc then
kjm is congruent to abc
what is the slope of y = 15x + 5
Answers
Answer:
15
Step-by-step explanation:
from equation y= mx+c
we can equate m (slope/gradient) to 15
An electrician leans an extension ladder against the outside wall of a house so that it reaches an electric box 22 feet up. The ladder makes an angle of 77^{\circ}
with the ground. Find the length of the ladder. Round your answer to the nearest tenth of a foot if necessary.
Answers
The ladder and the outside wall form a right triangle
The length of the ladder is 97.8 feet
How to determine the length of the ladder?The given parameters are:
Distance (B) = 22 feet
Angle of elevation (θ) = 77 degrees
The length (L) of the ladder is calculated using the following cosine ratio
cos(θ) = B/L
So, we have:
cos(77) = 22/L
Make L the subject
L = 22/cos(77)
Evaluate the product
L = 97.8
Hence, the length of the ladder is 97.8 feet
Read more about right triangles at:
https://brainly.com/question/2437195
Find the value of x.*
20
48
36
60
Answers
Answer: 48
Step-by-step explanation:
Draw a model of 1/2 divided by 4 please help yall
Answers
Answer:
1/8
Step-by-step explanation:
1/2 divided by 4 = 8 1/8ths
HELPPP WHATS THE PERMITER
Answers
Answer:
48 is the perimeter
Step-by-step explanation:
I gotchu
how do you do 35x56 i need help please
Answers
Answer:
EASY-
Step-by-step explanation:
First you need to write down the equation into what I call box form.What number Am I?
Elmo wants answers
Answers
Answer:
20
Step-by-step explanation:
Since it's a multiple of 5 between 18 and 30, possible answers are:
20 and 25
The GCF of 18, 36, and the number is 2, and 25 is not divisible by 2, leaving only 20.
The volume of a child’s model plane is 1200cm3. The volume of the full size plane is 4050m3. Find the scale of the model in the form 1:n.
Answers
the scale of the airplane is 1/3 the size of its counter part
If you put $5000 in a savings account that
pays 2% annual interest, the amount
of money you will have at the end of the year
is?
Answers
Answer:
$5100.
Step-by-step explanation:
2% annual interest is the same as multiplying a number by 0.02, then adding that number to the original number. Using this information, we can do the following steps:
5000 x 0.02 = 1005000 + 100 = 5100You will have $5100 at the end of the year.
Answer:
$5100
Step-by-step explanation:
$5000 is put into the account originally. If you multiply this number by 0.02 you will get your answer. All the best. -Crispin
The function h defined by h (t) = 4.9 (10+t) (10 - t) models the height, in meters, of an object t seconds after it is dropped from a
helicopter
Answers
Answer:
(a) 10 seconds
(b) 490 meters
Step-by-step explanation:
(A)When the object hits the ground, it shows that the height is 0. Hence, h(t) = 0.
0 = 4.9(10+t)(10-t)
0 = (10+t)(10-t)
t = 10, -10
Since time cannot be negative, t = -10 will be rejected.
Therefore, t = 10 seconds
(B)Based on the question, "t seconds after the object is dropped from a helicopter", means that the time starts right after the object is dropped from the helicopter, this shows that t = 0.
h(0) = 4.9(10+0)(10-0)
= 4.9(100)
= 490 meters
If y x w= 0, what can be said about the two vectors y and w?
=
Answers
One of the vectors is 0.......
A prince has arrived to rescue a princess standing in a tower balcony 18 meters up across a
moat 12 meters wide. He knew the princess was high up and there was a moat, so he
brought the longest ladder in the kingdom, a 20-meter monster. Is the ladder long enough?
Answers
No, the ladder is not long enough.
Select all the expressions that describe the area of this rectangle.
Answers
Answer:
a, c, d
Step-by-step explanation:
This is because there share the same answer:
12x + 6
hope this helps =)
0=x^2-8x-32 solve by completing the square
Answers
Answer:
x = 4.65 or x = -0.65 (to 2 d.p)
Step-by-step explanation:
To complete the square, use the formula x² + bx + c = (x + b/2)² - (b/2)² + c
In this case, x² - 8x - 32 = (x - 4)² - 16 - 32This simplifies to (x - 4)² - 48 = 0To solve this:
First, add 48 to both sides → (x - 4)² = 48Next, square root both sides → x - 4 = ± √48 (remember that the square root of a number always has a positive and negative value)Finally, add 4 to both sides → x = 4 ± √7x has 2 solutions
x = 2 + √7 or x = 2 - √7
x = 4.65 or x = -0.65 (to 2 d.p)
Hope this helps!
Answer:
x = 4 ± 4[tex]\sqrt{3}[/tex]
Step-by-step explanation:
x² - 8x - 32 = 0 ( add 32 to both sides )
x² - 8x = 32
to complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(- 4)x + 16 = 32 + 16
(x - 4)² = 48 ( take square root of both sides )
x - 4 = ± [tex]\sqrt{48}[/tex] = ± 4[tex]\sqrt{3}[/tex] ( add 4 to both sides )
x = 4 ± 4[tex]\sqrt{3}[/tex]
PLS HELP
it is the last question ignore the lesson and pg number ;)
Answers
Answer:
the last answer is -1 :))))))
of money Itzel has left over after buying p bottles
of nail polish
What does the constant 25 represent in this
context?
Answers
Answer the question below:
Answers
Answer:
5 students did.
Step-by-step explanation:
20 students. 1/4 of 20 is 5
