Answer:
The answer that you are going to get is 23.56
Step-by-step explanation:
You solve that by multiplying all the numbers and then you divide by 2.
A wildlife preserve features a crocodile with a documented age of 24 years, believed to be one of the oldest crocodiles in captivity. The lifespans of crocodiles have an approximately Normal distribution, with a mean of 18 years and a standard deviation of 2.6 years. What proportion of crocodiles have lifespans of at least 24 years? Find the z-table here. O 0.0104 O 0.3336 O 0.4896 O 0.6664
Answer:
0.0104
Step-by-step explanation:
Given that, the lifespans of crocodiles have an approximately Normal distribution, with a mean of 18 years and a standard deviation of 2.6 years.
So, mean, [tex]\mu=18[/tex]
and standard deviation, [tex]\sigma=2.6[/tex]
The z-score, for any arbitrary life span of x year, is given by
[tex]z=\frac{x-\mu}{\sigma}[/tex]
By using the given values, we have
[tex]z=\frac{x-18}{2.6} \cdots(i)[/tex]
The z-score for x=24, by using equation (i), is
[tex]z=\frac{24-18}{2.6}=\frac{6}{2.6}=2.31[/tex]
From the table, the area to the left side of z=2.31 =0.98956
But, the proportion of crocodiles have lifespans of at least 24 years
= Area to the right side of the z=2.31
=1- (Area to the left side of the z=2.31)
=1-0.98956
=0.01044
So, the proportion of crocodiles that have lifespans of at least 24 years is 0.0104.
Hence, option (a) is correct.
Answer:
A
Step-by-step explanation:
Enter the equation in standard form.
y − 6 = −(x + 4)
====================================================
Work Shown:
y - 6 = -(x + 4)
y - 6 = -x - 4
y = -x - 4 + 6 ..... adding 6 to both sides
y = -x + 2
y + x = 2 .... adding x to both sides
x + y = 2
The equation is in standard form Ax+By = C, with A = 1, B = 1, and C = 2.
Lucas read a 480 page book from cover to cover in a single session, at a constant rate. After reading for 2.5 hours she had 400 pages left to read. How fast was sara reading
Answer: ____ pages per hour
Answer:
32 pages per hour
Step-by-step explanation:
#CountryMusic
and ig the question is what is the scientific notation of 0.0021
Answer:
0.0021 in scientific notation is [tex]\mathbf{2.1 x 10 ^ {-3}}[/tex]
Step-by-step explanation:
We need to write 0.0021 in scientific notation.
Scientific Notation: A number expressed in scientific notation is written when numbers between 1 to 10 are multiplied by a power of 10.
In the given example 0.0021 our decimal will be shifted to the right 3 digits and the power will be negative 3 (-3)
So, 0.0021 in scientific notation is [tex]\mathbf{2.1 x 10 ^ {-3}}[/tex]
y + 1 = -2x-3 in standard form *
Answer:
y = -2x - 4
Step-by-step explanation:
y + 1 = -2x - 3
Subtract 1 from both sides to get the y by itself
y = -2x - 3 - 1
Simplify (Combine Like terms)
y = -2x - 4
A Rhombus is labeled ABCD. If the slope of AC is 1/2, what is the slope of BD?
At the bottom it says
m/_XZY=
Please help
Answer:
x=13
Step-by-step explanation:
Once again, all three angles of a triangle add up to 180° so we can form the equation: 47+90(this is the right angle)+4x-9=180°
Algebra:
47+90+4x-9=180
128+4x=180
4x=52
x=13
Hope this helps!! :) And that's all the time I have!! :( You can do it!! Good luck with the rest of your homework! :D
Dan buys a package of 12 cans of lemonade for $3.72. What is the unit price per can?
A
$0.37
B
$0.32
C
$0.31
D
$0.12
Answer:
$0.31
Step-by-step explanation:
Unit price is measured by dividing the price by the amount of an item, so 3.72/12 = 0.31
Answer: The answer is C
Step-by-step explanation:
Given the speeds of each runner below, determine who runs the fastest. \text{Tony runs 12 feet per second.} Tony runs 12 feet per second. \text{Katie runs 450 feet in 30 seconds.} Katie runs 450 feet in 30 seconds. \text{Frank runs 1 mile in 577 seconds.} Frank runs 1 mile in 577 seconds. \text{Adam runs 880 feet in 1 minute.} Adam runs 880 feet in 1 minute.
Answer:
Katie runs fastest
Step-by-step explanation:
For us to know the person who runs fastest, we need to calculate their speed in feet per seconds (ft/s)
For Tony; his speed is 12ft/s
For Katie;
Katie runs 450 feet in 30seconds;
450 feet = 30 secs
x = 1 sec
Cross multiply
30x = 450
x = 450/30
x = 15ft
Hence Katie runs 15ft/s
For Frank;
Frank ran 1 mile per 577secs
1 mile = 5280feeet
This mean that he ran 5280feet in 577 secs
5280feet = 577secs
y = 1 secs
cross multiply;
577y = 5280
y = 5280/577
y = 9.15ft/s
Hence Frank ran 9.15ft/s
For Adam;'
If Adam ran 880 ft in 1 minutes, this means he ran 880ft in 60secs
880 ft = 60secs
z = 1sec
Cross multiply
60z = 880
z = 880/60
z = 14.67ft/s
Hence Adam ran 14.67ft/s
From the value of their speed, we can see that Katie runs fastest with a speed of 15ft/s
Find 3 ratios that are equivalent to the given ratio.
12 to 30
Answer:
4:10
24:60
48:120
As long as you multiply or divide both sides of the ratio by the same number, you will have an equivalent ratio.
Y+3=X+4 Whats is the slope of the equation
Answer:
slope = 1
Step-by-step explanation:
Write the equation in slope-intercept form: y = mx +b
y + 3 = x + 4
y = x + 4 - 3
y = x + 1
Slope = 1
Triangle with angles 1, 2, 3 has a baseline k, and triangle with angles 4, 5, 6 has a baseline l. Lines k and l are parallel. Given that k ∥ l, identify the congruent angles in the triangles. ∠1≅ ∠2≅ ∠3≅
Answer:
angel 5,4,and 6 in that order
Step-by-step explanation:
Answer:
look at the pictureeeeeee
Step-by-step explanation:
if y=6 and x=-2, find x when y=-3
Answer:
1
Step-by-step explanation:
if you divide 6 by -2 you will end up with -3, so then you will divide -2 by -2 and you will get 1.
Which puts the equation 2x + y = 5 into slope-intercept form?
Answer:
y= -2x+ 5
Step-by-step explanation:
plug in y=mx+b
The equation 2x + y = 5 written in the slope-intercept form is y = -2x + 5, where the slope is -2 and the intercept is 5.
An equation in the slope-intercept form is written as y = mx + c.
The given equation is 2x + y = 5.
To write the given equation in slope-intercept form, subtract both sides of the equation with 2x,
(2x + y) - 2x = 5 - 2x
2x + y - 2x = 5 - 2x
y = 5 - 2x
Rearrange the terms
y = -2x + 5
Here, -2 is the slope and 5 is the intercept.
Thus, the slope-intercept form of the equation 2x + y = 5 is y = -2x + 5.
Learn more about Equation here:
https://brainly.com/question/28953876
#SPJ6
Somebody help this assignment is due tonight for a grade
Helppppppppppppppppppp
Please help me with my homework
Answer:
$13.25
Step-by-step explanation:
2 to the power of 46 is how many times as many as 2 to the power of 42
Answer:
2⁴⁶ is 2⁻⁴ times as many as 2⁴²
Step-by-step explanation:
Given;
2 to the power of 46 = 2⁴⁶
2 to the power of 42 = 2⁴²
Let the number of times = y
2⁴⁶y = 2⁴²
divide both side of the equation by 2⁴⁶
[tex]\frac{2^{46}y}{2^{46}} = \frac{2^{42}}{2^{46}} \\\\y = 2^{42-46}\\\\y = 2^{-4}[/tex]
Therefore, 2 to the power of 46 is 2 to the power -4 times as many as 2 to the power of 42. (i.e 2⁴⁶ is 2⁻⁴ times as many as 2⁴²)
Answer:
16
Step-by-step explanation:
any real number is equal to itself a=a
Answer:
well no, π is a real number and 1/9 is a real number but they are not equal
Yes, If you saying a=a
Step-by-step explanation:
Answer:
Yes, that's true
Step-by-step explanation:
If a real number is the representation of a specific value, then said number should equal itself.
Daniela has a container full of marbles. She gives away some of her marbles every day for five days. Each day, she has 1/4 the number of marbles she had a previous day. What fraction of the original number of marbles does Daniela have left after five days?
Given:
Daniela gives away some of her marbles every day for five days.
Each day, she has [tex]\dfrac{1}{4}[/tex] the number of marbles she had a previous day.
To find:
The fraction of the original number of marbles Daniela have left after five days.
Solution:
Let the origin number of marble be x.
Number of marbles after one day = [tex]\dfrac{1}{4}x[/tex]
Number of marbles after two days = [tex]\dfrac{1}{4}(\dfrac{1}{4}x)[/tex]
= [tex](\dfrac{1}{4})^2x[/tex]
Similarly,
Number of marbles after three days = [tex](\dfrac{1}{4})^3x[/tex]
Number of marbles after four days = [tex](\dfrac{1}{4})^4x[/tex]
Number of marbles after five days = [tex](\dfrac{1}{4})^5x[/tex]
= [tex]\dfrac{1}{1024}x[/tex]
Since, [tex]\dfrac{1}{1024}[/tex] is multiplied with x, therefore, the number of marbles Daniela have left after five days is [tex]\dfrac{1}{1024}[/tex] part of original number of marbles.
10 is what percent of 625
Answer:
1.6
Step-by-step explanation:
Answer:
1.6% hope this helps a little
Step-by-step explanation:
Combine the like terms to create an equivalent expression.
12r + 5 + 3 + 4r
Answer:
16r+8
Step-by-step explanation:
12r+4r+8=
16r+8
63x19 estimate and choose method
Answer:
1200 would be an estimate
Step-by-step explanation:
Rounding to the nearest 10's digits would be a method of estimation. For example, in this case, 63 would round down to 60 and 19 would round up to 20 for a quick estimate. 60 times 20 = 1200
Answer:
1197
Step-by-step explanation:
63 x 19 = 1197
Can you mark me brainliest
13
According to the social hierarchy below, which of the
following held a higher place in society?
A
slaves
B
scribes
C С
Craftworkers
D
peasants/farmers
Consider these graphed number lines.
Graph A
-5 4 -3 -2 -1 0 1 2 3 4 5
Graph B
Which number line represents the solution for the
inequality 12x - 5] > 3?
O graph A
O graph B
O graph C
O graph D
-5 -4 -3 -2 -1 0 1 2 3 4 5
Graph C
-5 4 -3 -2 -1 0 1 2 3 4 5
Graph D
-54 -3 -2 -1 0 1 2
3 4 5
Answer: Graph A
Step-by-step explanation:
got it right edg2021
the sum of two numbers is 10 and their difference is 4
Answer:
7 and 3
Step-by-step explanation:
7 + 3 = 10
7 - 3 = 4
Select all of the situations which can be represented by the expression 25.75x + 10.
Carol has $25.75. She earns $10.00 for each car that she washes.
Max has $10.00. He earns $25.75 for every lawn that he mows.
Jin buys x postcards for $25.75 each and x keychains for $10.00 each.
Sasha sells a scarf for $10.00 and x jackets for $25.75 each.
Jon buys 10 toy cars for $25.75 each
Answer:
-Max has $10.00. He earns $25.75 for every lawn that he mows.
-Sasha sells a scarf for $10.00 and x jackets for $25.75 each.
Step-by-step explanation:
Find the length of arc ab. Need help!!!
Answer:
12.4cm (rounded to nearest tenth)
Step-by-step explanation:
To find the length of an arc, you have to find the circumference of the full circle itself multiplied by the angle of the arc over 360°. The circumference of a circle is pi × r × 2.
Length of arc = [tex]\frac{90}{360}[/tex] × 3.14 × 7.9 × 2
= 12.403
≈ 12.4cm (rounded to nearest tenth)
I'M IN A HURRRRYYYYYY
PLEASEE HELP
18 POINTS
Which expression is equivalent to square root 80
^4 square root 2 times square root 5
square root 2^4 times square root 5
square root 2 times square root 2 times square root 5
square root 2^2 times square root 2^2 times square root 5^2
Answer:
4 square root 5 (A)
Step-by-step explanation:
Given: square root of -80
We have to find an equivalent expression.
(hope this helps) :))
Answer:
I think the second one. I could be wrong
Step-by-step explanation:
Work out the answers to:
a) 7 - 41
b) (-15) + 33
c) 62 - 84
d) (-26) – 14
Answer:
a= -34
b=18
c=-22
d=-40