32 is the correct answer. 40 times 0.8 because in decimal form, 80 percent equals 0.8:)
Answer:
32 80% of 40
Hope it is correct
If not I am sorry I tried my best
What value of y makes the equation true? -7/12 = y/-36
Answer:
y= 21
Step-by-step explanation:
-7/12=y/-36
Switch sides
y/-36=-7/12
Multiply both sides by -36 and simplify
y=21
Hope this helped! :)
Juan earns $7 per hour plus $20 per week making picture frames.
a) Write a function g(x) for Juan’s total earnings if he works x hours in one week.
b) Without graphing the function, determine the slope.
Answer:
15
Step-by-step explanation:
The function for the given situation is g(x)=7x+20.
Given that, Juan earns $7 per hour plus $20 per week making picture frames.
What is the function?Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.
a) Let the number of hours in a week be x.
So, function is g(x)=7x+20
y=7x+20
b) Compare y=7x+20 with y=mx+c, we get m=7
So, slope is 7
Therefore, the function for the given situation is g(x)=7x+20.
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Joel wants to find the best model for a bivariate data set that he is working with. He used a calculator to create a linear model, a
quadratic model, and an exponential model. The coefficient of determination for the linear model was 0.45. The coefficient of
determination for the quadratic model was 0.38, and the coefficient of determination for the exponential model was 0.51.
Which model should he use to represent the data set?
Answer:
exponential
Step-by-step explanation:
just took the test
What is the following sum?
5 (RootIndex 3 StartRoot x EndRoot) + 9 (RootIndex 3 StartRoot x EndRoot)
14 (RootIndex 6 StartRoot x EndRoot)
14 (RootIndex 6 StartRoot x squared EndRoot)
14 RootIndex 3 StartRoot x EndRoot)
14 (RootIndex 3 StartRoot x squared EndRoot)
Answer:
the answer is c
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
Plz help me i’ve been stuck on this one for a while
Answer:
the 2nd one
Step-by-step explanation:
Answer:
9/12 and 10/12
Step-by-step explanation:
LCM of 4 and 6 = 12Alter the numerators to fit the denominators as shown in steps 3 and 43 × 3 = 95 × 2 = 12Re-write the expression: 9/12 + 10/12I hope this helps!
A teacher has an annual income of $41,253. The income tax rate is 15%. What is the amount of the teacher's income tax in dollars and cents?
Answer:
$6,187.95
Step-by-step explanation:
When commercial aircraft are inspected, wing cracks are reported as nonexistent, detectable, or critical. The history of a particular fleet indicates that 70% of the planes inspected have no wing cracks, 25% have detectable wing cracks, and 5% have critical wing cracks. Five planes are randomly selected. Find the probability that at least one plane has critical cracks.
Answer:
0.226
Step-by-step explanation:
Given that:
No wing crack (x) = 70%
Detectable wing crack (y) = 25%
Critical wing crack (z) = 5%
Number of samples (n) = 5
Probability that atleast a plane has critical crack:
1 - p(no critical crack)
Using the multinomial distribution calculator :
P(5,0,0) + p(4,1,0) + p(3,2, 0) + p(2,3,0) + p(1,4,0) + p(0,5,0)
From the calculator :
P(5,0,0) + p(4,1,0) + p(3,2, 0) + p(2,3,0) + p(1,4,0) + p(0,5,0) = 0.7741
1 - 0.7741 = 0.2259
= 0.226
Find the center and radius of the circle with the equation: (x-5)^2+(y+1)^2=4
Answer:
Centre (5,-1) radius =2
Step-by-step explanation:
(x-5)^2+(y+1)^2=4
The standard equation of the circle is
(X-a)^2+(y-b)^2=r^2
Where a,b is centre of the circle and r is the radius of the circle
Compare the equations
So we get a=5,b=-1 and r=2
Centre (5,-1) radius =2
Alisha conducted an experiment in which a spinner landed on green 7 times. If the experimental probability of the spinner landing on green is 1 5 , how many trials did Alisha perform? 30 35 45 50
Answer:35
Step-by-step explanation:
Answer:
35
Step-by-step explanation:
just got it right on edge
You move up 2 units. You end at (3, 10). Where did you start?
Answer:
no entiendo
Step-by-step explanation:
Answer:
(3,8)
Step-by-step explanation:
Elena biked 8 miles on Saturday. Use the double number line to answer the questions. Be prepared to explain your reasoning. A) What is 100% of her Saturday distance? B) On Sunday, she biked 75% of her Saturday distance. How far was that? C) On Monday, she biked 125% of her Saturday distance. How far was that?
Answer:
A - Since Elena biked for 8 miles on Saturday, 100% of her distance traveled was 8 miles.
B - Now, on Sunday she traveled 75% of what she traveled on Saturday, which arises from the following calculation:
8 x 0.75 = X
6 = X
So on Sunday she traveled 6 miles.
C - Finally, on Monday she traveled 125% of what she traveled on Saturday, which arises from the following calculation:
8 x 1.25 = X
10 = X
So on Monday she traveled 10 miles.
Answer:
I agree with the one above me
Step-by-step explanation:
help asap important question one
Answer:
B.
Step-by-step explanation:
They'd have to be exactly the same to ave infinitely many solutions.
Which statements involving cosine and sine are true? Check all that apply.
sin(–45°) = –sin(45°)
sin(–45°) = sin(45°)
cos(–45°) = –cos(45°)
cos(–45°) = cos(45°)
cos(–45°) = sin(–45°)
Answer:
sin(–45°) = –sin(45°)
cos(–45°) = cos(45°)
Step-by-step explanation:
The statements which involving cosine and sine are true are sin(–45°) = –sin(45°) and cos(–45°) = cos(45°).
What are Trigonometric Ratios?Trigonometric ratios are the ratios which is described for two sides of a right angled triangle.
The main three trigonometric ratios are sine, cosine and tangent functions.
Trigonometric functions are also called as Circular functions.
There are five statements given.
We have the identities that,
sin (-x) = - sin(x) and
cos (-x) = cos x
Using this for each of the statement,
sin(–45°) = –sin(45°) is true.
sin(–45°) = sin(45°) is false
cos(–45°) = –cos(45°) is false
cos(–45°) = cos(45°) is true
For the last one,
cos(–45°) = cos (45°) = sin (45°) ≠ sin(–45°)
So this is false.
Hence the true statements are sin(–45°) = –sin(45°) and cos(–45°) = cos(45°).
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Is 8, 9, 14, 5 solutions to y ≤ 9?
Answer:
y ≤ 9 is saying that y is equal to anything 9 and below. Therefore, 9, 8, and 5 are correct answers since they are either equal to or less then 9. Although 14 is the only incorrect one.
14 is incorrect
Step-by-step explanation:
if if you answer correctly ill give brainliest
A store offers different brands of a product. It decides to eliminate the brand
that is most likely to be returned. The table shows the number of items of
each brand that were returned over the past year and the total sold.
Returns
Total sold
Brand A
33
685
Brand B
15
492
Brand C
29
361
Brand D
31
766
Which brand should the store eliminate?
O A. Brand B
O B. Brand D
O C. Brand C
O D. Brand A
Answer: They should eliminate Brand C
Step-by-step explanation:
You need to divide the total returns by the total sold to which Brand has the greatest percentage returned.
The brand that the store should eliminate out of the 4 given brands using the data in the table is; Brand C
How to Solve Percentage Problems?To find the brand that the store should eliminate we need to find the percentage of sold items that were returned and pick the highest percentage as the brand the store should eliminate.
Brand A percentage = [tex]\frac{33}{685}[/tex] × 100 = 4.81%
Brand B percentage = [tex]\frac{15}{492}[/tex] × 100= 3.04%
Brand C percentage = [tex]\frac{29}{361}[/tex] × 100 = 8.03 %
Brand D percentage = [tex]\frac{31}{766}[/tex] × 100 = 4.04%
Brand C has the highest percentage and as such it is the brand that should be eliminated.
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Which are the vertically opposite angles?
Which are the supplementary angles?
Which are the adjacent angles?
Which expression is equivalent to "the firth
power of (5 + 7)"?
Answer:
[tex]\left(5+7\right)^5=248832[/tex]
Step-by-step explanation:
The fifth power of (5+7) can be written as:
[tex]\left(5+7\right)^5[/tex]
Solving the expression to determine its equivalent
[tex]\left(5+7\right)^5[/tex]
Calculating within parentheses
[tex]=12^5[/tex]
[tex]=248832[/tex]
Therefore,
[tex]\left(5+7\right)^5=248832[/tex]
A store manager wishes to investigate whether there is a relationship between the type of promotion offered and the number of customers who spend more than $30 on a purchase. Data will be gathered and placed into the two-way table below.Which statement best describes how the manager can check if there is an association between the two variables?
PQRS is an isosceles trapezoid. Find the value of each variable. What does x+y+z=? Just write the final number value. *
Answer:a
Step-by-step explanation:
I got it right
Answer:
x + y + z = 41.5
Step-by-step explanation:
(5x)° = 100°
x = 20
(4y + 10)° + 100° = 180° ⇒ y = [tex]\frac{35}{2}[/tex] = 17.5
(4z² + 16)° + 100° = 180° ⇒ z = 4
x + y + z = 20 + 17.5 + 4 = 41.5
PLS HELP. URGENT
Serena and Derek have 270 stickers in all. Serena has 25% more stickers than Derek. How many stickers does Derek have? (Type out your work and answer)
In ∆PQR,p:q:r=√3:1:1. Calculate the ratio p:q:r in its simplest form.
9514 1404 393
Answer:
p : q : r = √3 : 1 : 1
Step-by-step explanation:
The ratio is already in simplest form. It cannot be expressed as the ratio of integers, because √3 is irrational.
17. 1,000 X n = 630
n =
Answer:
0.63 or 63/100
Step-by-step explanation:
Answer:
0.63
Step-by-step explanation:
For this you would want to do the reverse operation. So you see that it is multiplication? You would have to do division to get n by itself. When you divide 630 by 1,000 you would get 0.63.
PLZ HELP ME IN DUE IN 15 MIN!!
Answer:
i got this i think
Step-by-step explanation:
PR:S
SU:P
PS:Q
david is drinking a sports drink that us 24 ounces. he drinks 3 ounces in 5 minutes what percentage of the sports drink will david have finished after 30 minutes
Answer:
18 ounces
Step-by-step explanation:
5 x 6= 30
3 x 6= 18
Write 2.5896 X 10° in standard notation.
Answer:
2.5896
Explanation:
Zero power rule: The zero exponent rule states that any number raised to a power of zero equals one.
10^0 is 1, so nothing changes
A number is called flippy if its digits alternate between two distinct digits. For example, 2020 and 37373 are flippy, but 3883 and 123123 are not. How many five-digit flippy numbers are divisible by 15?
Answer:
4 numbers
Step-by-step explanation:
Given
Five Digit Flippy Numbers
Required
Determine the number of these digits divisible by 15
Represent the format of this digits as: ABABA
A number is divisible by 15 if and only if it ends with 5 or 0
i.e.
[tex]ABABA = 0B0B0[/tex]
or
[tex]ABABA = 5B5B5[/tex]
The first format [tex]ABABA = 0B0B0[/tex] cannot be considered because the number starts with 0 which means that
[tex]ABABA = B0B0[/tex] ---- This is 4 digits not 5
Taking into consideration: 5B5B5
We know that 15 is a product of 5 and 3
i.e.
[tex]15 = 5 * 3[/tex]
5B5B5 is divisible by 5 because it ends with 5. So, for a number of this format to be divisible by 15, it must be divisible by 3
Numbers in this category are: 50505, 53535, 56565 and 59595
Hence, there are 4 five-digit flippy numbers divisible by 5.
Factor -5 out of 10a-25
Please help with a step-by-step explanation!!
Answer:
-5(-2a + 5)
Step-by-step explanation:
10a - 25
-5(-2a + 5)
Answer:
-5(-2a+5)
Step-by-step explanation:
your dividing each number by -5, to get -5 factored.
10 / -5 = -2
-25 / -5 = 5
then you plug it back into the equation with the 5 being factored.
kate has walk 6000 steps each day for one week her weekly steps Target is to walk 56,000 steps what percent on her weekly steps target did she achieve
Answer:
the answer is 75%
Step-by-step explanation:
[tex]6000 \times 7 = 42000[/tex]
[tex] \frac{42000}{56000} \times 100 = 75[/tex]
Answer:
She reached 75% of her goal!
Step-by-step explanation:
first i find out how many steps she took in total:
6000 x 7 = 42000
then i set up proportions so i can cross multiply
[tex]\frac{42000}{50000}= \frac{x}{100}[/tex]
42000 x 100 = 4200000
4200000 / 56000 = 75
If the square below has an area of 50, what is the value of x
Answer:
10
Step-by-step explanation:
A= L²
50 = L² (do opposite operation to find L)
L = 7.07
x²= L²+ L²
x²= 7.07² + 7.07²
x² = 100 ( do opposite operation to make x the subject)
x = 10
Note: opposite operation of square is square root