Answer:
Step-by-step explanation:
1:4:7
1+4+7=12
120+12+10
Answer:
Step-by-step explanation:
first divide 120/4 = 30
so everything needs to be multiplied by 30
new ratio is 30:120:210
add them together
30 + 120 + 210 = 360
hope this helps <3
Express 593 million in scientific notation
Answer:
593 million=593,000,000=5.93×10⁸
5.93×10⁸ is the right answer.
right now how you can get there
Which model represents a percent error of 25%?
25% = 1/4
Count total squares in each and the number of blue ones.
Divide blue by total and see which one is 1/4.
The 3rd image shows 1/4
Answer:
It is A trust me i got C wrong!
Step-by-step explanation:
Hope this help! (:
Find the values of x and y.
Answer:
x = 7 , y = 4
Step-by-step explanation:
x = 7 , y = 4
Write the sentence as an equation. y multiplied by 184 is 395
Answer:
y * 184 = 395
Step-by-step explanation:
Answer:
184y = 395 should be the answer
Step-by-step explanation:
Write an equation to represent the following statement. 60 is 5 times as great as k
Answer:
60=5k
Step-by-step explanation:
k=12
I did it on Khan and got it right!
I GIVEEEEE BRAINLILST
Answer:
113
Step-by-step explanation:
The area is π[tex]r^{2}[/tex], and pi is about 3. r is d/2 which is 12/2=6.
6^2 is 36 and 36*3 = 108. 113 is the closest, so that is the best estimate.
Let C be the curve defined by xy=−4. Which of the following statements is true of curve C at the point (−2,2)?
9514 1404 393
Answer:
C. It is increasing and concave up because y′>0 and y′′>0.
Step-by-step explanation:
The curve C is a hyperbola in the 2nd and 4th quadrants. As such, it has no maximum or minimum. It is increasing at an increasing rate at the point (-2, 2), so matches the description of choice C.
3x3-9+2
plz help i may ask
Answer:
[tex]3 \times 3 - 9 + 2 = 9 - 9 + 2 = 2[/tex]
Answer: 2
Step-by-step explanation: 9-9=0+2=2
A random sample of 17 students, taught in traditional lab sessions, had a mean test score of 71.5 with a standard deviation of 4.8. A random sample of 13 students, taught using interactive simulation software, had a mean test score of 78.5 with a standard deviation of 6. Do these results support the claim that the mean science test score is lower for students taught in traditional lab sessions than it is for students taught using interactive simulation software
Answer:
The calculated value of t= -0.9468 does not lie in the critical region t= -1.701. Therefore we accept our null hypothesis that mean science test score is lower for students taught in traditional lab sessions than it is for students taught using interactive simulation software at the 0.05 significance level
Step-by-step explanation:
Categories Sample Size Mean Standard D
Traditional Lab 17 71.5 4.8
Software 13 78. 5 6
We are using Student's t- test considering that the population variance is equal.
We formulate null and alternate hypotheses are
H0 : u1 < u2 against Ha: u1 ≥ u 2
The Significance level alpha is chosen to be ∝ = 0.05
The critical region t ≤ -t (0.05, 28) = -1.701
Degrees of freedom is calculated df = υ= n1+n2- 2= 17+13-2= 28
Here the difference between the sample means is x`1- x`2= 71.5-78.5= -7
The pooled estimate for the common variance σ² is
Sp² = 1/n1+n2 -2 [ ∑ (x1i - x1`)² + ∑ (x2j - x`2)²]
= 1/17+13-2 [ 71.5²+78.5²]
Sp = 20.0664
The test statistic is
t = (x`1- x` ) /. Sp √1/n1 + 1/n2
t= -7/ 20.0664 √1/17+ 1/13
t= -7/7.393
t= -0.9468
The calculated value of t= -0.9468 does not lie in the critical region t= -1.701. Therefore we accept our null hypothesis that mean science test score is lower for students taught in traditional lab sessions than it is for students taught using interactive simulation software at the 0.05 significance level
PLS HELP ASAP THIS IS DUE TODAY AND IM JUST NOW REMEMBERING IT
i think it's just simply y - 7 ?
Answer:
Its y-7
Step-by-step explanation:
7 less than Y/ y - 7
HURYYYYYYYYYYYYYYYYYYYYYY
According to the graph, which of the following is true?
a.
Rural population was increasing at a greater rate than urban population.
b.
Between 1900 and 1920, the total population declined.
c.
Between 1900 and 1920, urban population increased at a greater rate than rural population.
d.
Urban population grew more quickly before the Civil War.
Answer:
The answer is C.
Step-by-step explanation:
Hope this helps!
Answer:
c
Step-by-step explanation:
have a good day
entrique uses a gift card to buy coffee at a coffee shop. The initial value of the guft cord is $20. The function n=20-2.75c represents the amount of money still left on the guft card n after c cups of coffee are bought. Find the zero of this function. Describe what this means in context.
Answer:
7 cups of coffee
Step-by-step explanation:
Given
[tex]n = 20 - 2.75c[/tex]
Required
Find and describe the zero of the function
To do this, we simply equate n to 0
i.e.
[tex]n = 0[/tex]
Substitute 0 for n in [tex]n = 20 - 2.75c[/tex]
[tex]0 = 20 - 2.75c[/tex]
Add 2.75c to both sides
[tex]0 + 2.75c = 20 - 2.75c + 2.75c[/tex]
[tex]0 + 2.75c = 20[/tex]
[tex]2.75c = 20[/tex]
Divide both sides by 2.75
[tex]\frac{2.75c}{2.75} = \frac{20}{2.75}[/tex]
[tex]c = \frac{20}{2.75}[/tex]
[tex]c = 7.273[/tex]
[tex]c = 7[/tex] --- Approximated
This implies that the maximum cups of coffees that can be bought is 7
Samuel runs around a 1-mile track in 10 minutes, and Sophia runs around the same track in
10 minutes. Assuming they continue running at their respective speeds, how many total
miles will they run in 35 minutes? Express your answer as a mixed number.
Answer:
3.5 miles
Step-by-step explanation:
Step one:
given data
Samuel runs around a 1-mile track in 10 minutes
Samuel's speed is
speed= distance/time
speed= 1/10= 0.1 miles per minute
Sophia runs around the same track in 10 minutes
Hence Sophia's speed is also = 0.1 miles per minute
Step two:
Given that the time is 35 minutes, and their speeds are 0.1 miles per minute, we can find the distance from
speed= distance/time
distance= speed*time
distance= 0.1*35
distance= 3.5 miles
Suppose there are 17 jelly beans in a box -2 red, 6 blue, 4 white, and 5 green what part of the jelly beans is blue? Express your answer in each of the forms requested
Answer:
Blue part = [tex]\dfrac{6}{17}[/tex]
Step-by-step explanation:
Given that,
Total number of jelly beans = 17
Red beans = 2
Blue beans = 6
White beans = 4
Green beans = 5
We need to find what part of the jelly beans is blue.
[tex]F_b=\dfrac{\text{Blue beans}}{\text{Total beans}}\\\\F_b=\dfrac{6}{17}[/tex]
Hence, the required part of the jelly beans that is blue is [tex]\dfrac{6}{17}[/tex].
Simplify and factor the following expression 3(2x+4)+2(3x-4)
Answer:
12x+4
Step-by-step explanation:
help please I begging can you please help me and break it down
Answer:
[tex]c=\sqrt{32}[/tex]
Step-by-step explanation:
When we solve for this we should always remember this formula [tex]a^2+b^2=c^2[/tex] and since we already know a and b we can plug that in to find out what c could be but we won't actually solve it.
[tex]a^2+b^2=c^2\\4^2+4^2=c^2\\16+16=c^2\\32=c^2\\\sqrt{c^2}=\sqrt{32}\\c=\sqrt{32}[/tex]
So c would equal whatever the square root of 32 is.
A pizza is cut into 6 equal pieces. After Eli and Dan eat
some, of the pizza is left. What fraction could each boy eat?
3 times as many as 2805
Answer:
i dont understand can you put it in like an equation
The city of Joyville has 87,388 residents round the number of people who live in joyville
Answer:
there is no answer
but ok
Step-by-step explanation:
Answer:
depending on how you're rounding it
Step-by-step explanation:
90,000 88,000 87,000 87,400 87,390 if its more then five round up less than five round down
2x^4y^3(5x) simplify fully
Answer:
the answer is (2•5x5y3)
Step-by-step explanation:
1. (2x4 • y3) • 5x
Multiplying exponential expressions
2. x4 multiplied by x1 = x(4 + 1) = x5
Final result :
(2•5x5y3)
Sorry if I'm wrong
Answer:
10 x ^5 y^ 3
Step-by-step explanation:
When Erin simplified 6 - (-4) she got 2 as her answer. Is this correct? If not, what is the correct
simplification?
you have 24 homework problems for math class. You finish 12 of them during some extra time in class. If you complete 4 more problems while waiting for the bus, what fraction of the 24 problems will remain?
Answer:
8/24
1/3 (simplified)
Step-by-step explanation:
You first subtract the amount of homework you already did
24-12=12
12-4=8
8/24
(optional)
Simplify
8/24 = 1/3
This graph represents a transformation of the parent cube root function. Replace the values of h and k to create the equation of the transformed function.
The equation of the transformed function, y = ∛x+5 - 2
What is parent function?A parent graph is the graph of a relatively simple function. By transforming the function in various ways, the graph can be translated, reflected, or otherwise changed.
This graph represents a transformation of the parent cube root function.
Here, Parent cube root function is
y= ∛x
and the value of h and k is equal to 0
Now, as from the graph we can see that the graph changes direction at (-5,-2) which shows the graph is shifted 5 units to left and 2 unit down
Hence, the equation of the transformed function, y = ∛x+5 - 2
Learn more about this concept here:
https://brainly.com/question/18856650
#SPJ1
what is 100 × 100
A: 1000
B: 700
C: 200
D: None of the Above
Answer:
The answer is 10,000
Step-by-step explanation:
So the answer is not there so it is none of the above
it is January 17th 2021
Most people celebrating the new year will spend no more than $200. Write the amount that the average person will spend as an inequality, where X is the amount of personal spend.
Answer:
p * 200 ≥ x
Step-by-step explanation:
People multiped by the max amount that people can spend is greater than or equal to the what p actually spent.
p * 200 ≥ x
MAXIMUM $ ACTUAL $
It rained 40% of the days during Casey's vacation. What fraction of the days did it rain? Please help me!
Choices: 1/2 , 1/5 , 1/40 , 40/100
The student council needs posters for the Winter Carnival. The print shop charges $15 for each print job. Each poster will cost an additional
$1.35.
Which equation shows the relationship between the number of posters, n, and the total cost, c, in dollars?
O A. c = 1.35n + 15
O B. n = 1.35n + 15
O C. c = 16.35n
O D. n = 16.35c
Answer: A. c = 1.35n + 15
Step-by-step explanation:
Given: Charge for each job = $15
Additional cost per poster = $ 1.35
Total cost = Charge for each job + (Additional cost per poster) (Number of posters) ...(i)
Varaibles:
c= Tota; cost for n posters.
Substitute all values in (i), we get
[tex]c=15+1.35n[/tex]
Hence, the required equation : c = 1.35n + 15
Hence, the correct option is A. c = 1.35n + 15.
Test: Chapter 1 Post-Test
This Question: 1 pt
5 of 18 (3 complete)
In the figure to the right, estimate the maximum number of smaller figures (at left) that can be placed in the larger figure
(at right) without the small figures overlapping.
Choose the correct estimate below.
A 40
B. 20
0 ООО
C. 10
OD. 30
