Answer:
b = -6 (Answer d)
Step-by-step explanation:
The slope-intercept equation is y = -2x + b, and we know that the line passes through (-5, 4). Substitute -5 for x and 4 for y, to obtain:
4 = -2(-5) + b, or
4 = 10 + b, or
b = -6 (Answer d)
set of data has a normal distribution with a mean of 56 and a standard deviation of 7. Find the percent of data within the following interval.
from 35 to 77
SOMEONE PLEASE HELP
Answer:
.99815
which is about
99.815%
Step-by-step explanation:
we are looking for 35<x<77
We need to find (what I think is called) the z score which is acheieved through what I'm pretty sure is called standardizing
What we do is subtract the mean and then divide by the standard deviation
so for 35 we have
(35-56)/7= -3.29
due to the fact that the normal distribution is symmetric this is equal to 1-p(3.29)
to find p(3.29) grab a ztable and get p(3.29)= .9995
1-.9995= .0005
For 77 we have
(77-56)/7=3
grab a ztable and find the 3= .99865
Finally subtract these two to get the final answer
.99865-.0005= .99815
Solve 270=3e^2.4K to the nearest hundredth
If you can solve this for me could you please give steps so I can understand, please and thank you so much!
Given:
The equation is:
[tex]270=3e^{2.4K}[/tex]
To find:
The solution for the given equation to the nearest hundredth.
Solution:
We have,
[tex]270=3e^{2.4K}[/tex]
Divide both sides by 3.
[tex]\dfrac{270}{3}=e^{2.4K}[/tex]
[tex]90=e^{2.4K}[/tex]
Taking ln on both sides, we get
[tex]\ln (90)=\ln e^{2.4K}[/tex]
[tex]\ln (90)=2.4K[/tex] [tex][\because \ln e^x=x][/tex]
Divide both sides by 2.4.
[tex]\dfrac{\ln (90)}{2.4}=K[/tex]
[tex]\dfrac{4.4998}{2.4}=K[/tex] [tex][\because \ln (90)\approx 4.4998][/tex]
[tex]1.874916667=K[/tex]
Round the value to the nearest hundredth (two decimal place)
[tex]K\approx 1.87[/tex]
Therefore, the value of K is 1.87.
which statement would be true if you evaluate the expression 15x(465x4)
a. the solution is 5 times as small as 3x(465x4)
b. the solution is 3 times as small as 3x(465x4)
c. the solution is 3 times as large as 5x(465x4)
d. the solution is 3 times as large as 5x(465+4)
Answer:
c. the solution is 3 times as large as 5x(465x4)
Step-by-step explanation:
I assume you are using the letter x as the multiplication sign.
Start with:
15 x (465 x 4)
We know that 15 = 3 x 5
Now we replace 15 with 3 x 5 in the original expression.
15 x (465 x 4) = 3 x 5 x (465 x 4)
Answer: c. the solution is 3 times as large as 5x(465x4)
3) A box contains 4 yellow marbles, 2 blue marbles, and 3 red marbles. If a marble is drawn randomly from
the box, but the marble drawn is replaced. What is the probability of drawing 2 yellow marbles and 1 red
marble?
Hey buddy I am here to help!
yellow marbles = 4
blue marbles = 2
red marbles = 3
total marbles = 9
1 random marbles taken off probability left = 8/9
1 random marble taken off probability = 1/9
marble if replaced = + 1
if one marble if replaced then = 8/9 + 1/9 = 9/9 that means total marbles r 9
yellow marbles drawn off = 2
so... 4 - 2 = 2 marbles left
red marbles taken off = 1
so... 3 -1 = 2 marbles left
probability/answer = 3/9 = 1/3
Hope it helps!
Plz mark my answer brainliest
a) Complete the table of values for y = 2x2 + x
15 = 3w solve for w, what does w equal
Answer:
w = 5
Step-by-step explanation:
15 = 3w
Switch sides.
3w = 15
Divide both sides by 3.
w = 5
3w = 15
Divide both sides by 3
3w ÷ 3 = 15 ÷ 3
w = 5
Determine the answer to (-3) + (-5) using a number line
Answer:
---
Step-by-step explanation:
Start at -3. Then subtract 5 from it(or go backwards 5).
---
hope it helps
whats 38273 round off to 100
Answer:
38,300
Step-by-step explanation:
The hundredth number is the third number to the left from the right.
If we look to the number right of 2, there 7.
Since we are rounding: 5 or more...raise the score, 4 or less...let it rest.
Well 7 is greater than 5 so we round 2 up to 3
Hope this helps
Hi there!
»»————- ★ ————-««
I believe your answer is:
38,273 ≈ 38,300
»»————- ★ ————-««
Here’s why:
We would first locate the hundreds place. The hundreds digit would be '2'.38,273
If the tens place (the digit to the right) is greater than or equal to 5, then we would round up. If the tens place is less than or equal to 4, we round down. Since the 7 is greater than or equal to 5, we would round up.⸻⸻⸻⸻
38,273 ≈ 38,300
⸻⸻⸻⸻
»»————- ★ ————-««
Hope this helps you. I apologize if it’s incorrect.
Toby the poodle buries 9 sticks. Clifford the jack russel buries 7 times as the amount of sticks toby How many sticks did the dogs bury in all
Answer:
1√6
Step-by-step explanation
9+7=16
A: What is the smallest increment on the voltmeter
B: What is the uncertainty
(Multi choice)
1. A: 10 V
2. A: 1 V
3. A: 100 V
4. B: 5 V
5. B: 0.5 V
6. B: 50 V
Answer:
RESOLUTION
Step-by-step explanation:
Resolution is the smallest increment a tool can detect and display. For a nonelectrical example, consider two rulers.
Find the area of the polygon.
Answer:
Area = 15 square cm
Step-by-step explanation:
[tex]Area = base \times height\\\\[/tex]
[tex]= 5 \times 3\\= 15 \ cm^2[/tex]
area =15cm²
Answer:
Solution given:
Area of a given polygon [parallelogram]=
base*height=5*3=15cm²
Melanie recorded a number with two sevens. The value of the first 7 is 7,000. The value of the second 7 is 700. Which could be Melanie's number?
Answer:
7700.
im not sure if the 00 are to be other numbers but 7700 should be your number
Ms. Joseph is saving money for a trip to Zearnland over 12 weeks. She starts with 1 dollar. In the second week, she adds 2 dollars. Each week she adds 1 more dollar than she did the week before. How many weeks will she be saving money?
Answer: $78
Step-by-step explanation:
You start out with $1
$2 = second week $3 = third week $4 = fourth week $5 = fifth week $6 = sixth week $7 = seventh week $8 = eighth week $9 = ninth week $10 = tenth week $11 = eleventh week $12 = twelth week
then you add it all up = 1+2+3+4+5+6+7+8+9+10+11+12 that would equal to $78
can someone help me with this Q :)
Answer:
its the digram: )
Step-by-step explanation:
Answer:
*888888888877727723772289292
Step-by-step explanation:
88ejei49 + 710 is 49 + 710 is 10390..49 + 710 is 10390.
2x/7-3=2
What is the value of x
Answer:
35/2 or 17.5
Step-by-step explanation:
2x / 7 - 3 = 2
2x / 7 - 3 + 3 = 2 + 3
2x / 7 = 5
(2x /7) x 7 = 5 x 7
2x = 35
x = 35/2 or 17.5
Answer:
[tex]x = \frac{35}{2} [/tex]
Step-by-step explanation:
[tex] \frac{2x}{7} -3=2[/tex]
[tex] \frac{2x}{7} = 2 + 3[/tex]
[tex]\frac{2x}{7} = 5[/tex]
[tex]x = \frac{7}{2} \times 5[/tex]
[tex]x = \frac{35}{2} [/tex]
Decimal Form:
[tex]x = 17.5[/tex]
Mixed Number Form:
[tex]x = 17 \frac{1}{2} [/tex]
Hope it is helpful...show that 21^n, n €N can never ends with 0,2,4,6 and 8
Answer:
Step-by-step explanation:
[tex]21 ^n = (3 \times 7)^n[/tex]
21 has no 2 in it's prime factorization. So it can never end in 0, 2 , 4 , 6 , 8.
OR
Odd number raise to any number is always odd, Which does not include 2, 4, 6 , 8.
So [tex]21^n[/tex] does not end with 0, 2, 4 , 6 , 8.
What is the correct answer to this question?
Answer:
A
Step-by-step explanation:
Consider this right triangle. Determine whether each equation is correct. Select yes or no using the dropdown for each equation.
Answer:
Yes
Yes
NO CosD = 5/13
Yes
Help I need a answer
Answer:
C
Step-by-step explanation:
The verticle line on the left is the minimum and is 4 for both
What is the value of tan (–3 pi/4 )?
Maggie bought 45 oz of flour for her bakery. She used 17.5 oz to make a loaf of bread, and 0.71 oz for each muffin. How many muffins did Maggie make if she had 14.72 oz of flour left over?
Answer:
18 muffins
Step-by-step explanation:
Amount of flour Maggie used
Total amount of flour she bought - Amount of flour left over.
= 45oz - 14.72 oz
= 30.28 oz of flour
She used 17.5 oz to make a loaf of bread, and 0.71 oz for each muffin.
Hence,
Let the number of muffins = x
17.5 + 0.71x = 30.28
0.71x = 30.28 - 17.5
0.71x = 12.78
x = 12.78/0.71
x = 18 muffins
Therefore, Maggie made 18 muffins
please help. i have no clue how to do volume of spheres
Step-by-step explanation:
the answer is a
4/3πr^3
4/3*22/7*5^3
What I Can Do
Construet an appropriate graph for the Charity donations of each grade level in a high school:
Answer:
You should have a graph that has the words on the y axis Grade 7 Grade 8 Grade 9 and Grade 10 on each differnt line. Than put the number corosponding to the grade on each line, making the graph rise up and down.
Step-by-step explanation:
Can't make one.
Challenge. Add a number to the original data set based on the instructions below:
Original data set:
3, 10, 8, 3, 10, 1, 10,
A)
Fill in the blank with a number that would make the range of the data set 20.
3, 10, 8, 3, 10, 1, 10,
B)
Fill in the blank with a number that would make the mean of the data set 15.
3, 10, 8, 3, 10, 1, 10,
C)
Fill in the blank with a number that would make the standard deviation smaller.
3, 10, 8, 3, 10, 1, 10,
Answer:
A) 23
B) 75
C) 6.30
Step-by-step explanation:
A) Range = highest value - least value
Range = 20
least value = 3
Thus,
20 = highest value - 3
highest value = 20 + 3
= 23
The number that would make the range of the data set 20 is 23.
B) Let the number be represented by x, so that;
15 = [tex]\frac{3 + 10 + 8 + 3 + 10 + 1 + 10 + x}{8}[/tex]
cross multiply to have
15 x 8 = 45 + x
120 - 45 = x
x = 75
The number that would make the mean of the data set 15 is 75.
C) The given data plus a number that is close to the mean would reduce the standard deviation.
mean of the data set = [tex]\frac{3+10+8+3+10+1+10}{7}[/tex]
= 6.43
The required number could be 6.30
The graphs of f(x) and g(x) are shown.
If g(x)=f(x)+k, what is the value of k?
Answer:
the answer is :
value of k is 2
Which statement is true?
The range of h(x) is y> 0.
The domain of g(x) is y> 0.
O The ranges of f(x) and h(x) are different from
the range of g(x).
O The domains of f(x) and g(x) are different from the domain of h(x).
Answer:
Step-by-step explanation:
Easy question please answer mark you brainliest
1. find the area of the circle
Answer:
The area of a circle is pi times the radius squared (A = π r²). Learn how to use this formula to find the area of a circle when given the diameter.
Answer:
area of a circle=200.96a^12
Step-by-step explanation:
area of circle=πr^2
=3.14*([tex]8a^{6}[/tex])^2
=3.14*64a^12
=200.96a^12
A Triangle on a coordinate plane is translated according to the rule T-8, 4(x, y). Which is another way to w
rule?
• (X,Y) (x+4,y-8)
• (X,Y) → (X-4, y-8)
• (X,Y)(-8, y+4)
• (x,y) → (x+8, y-4)
Answer:
C (x, y) - (x - 8, y + 4)
Step-by-step explanation:
Find the equation of the line with slope zero passing through A(-4, 7).
Answer:
y =7
Step-by-step explanation:
A line with zero slope is
y = constant
The y value for the point is 7
y =7
Answer:
0x+7=y
Step-by-step explanation:
0(-4)+b=7
0+b=7
b=7
8 cm
10 cm
The surface area of the above figure is
A. 816.8 cm2
B. 879.6 cm2
C. 565.5 cm2
D. 1131.0 cm2