Answer:Maria rate = 1/13 job/hr
-----
Felipe rate = 1/16 job/hr
----
Together rate = 1/x job/h
Step-by-step explanation: rate + rate = Together rate
1/13 + 1/16 = 1/x
----
16x + 13x = 13*16
------
29x = 13*16
x = 7.17 hrs = 7 hr 10 min 12 seconds (time to do the job together)
-------------
Cheers,
Rubberduck100000.
40 POINTS!!!
Which polynomial contains the powers in descending order?
Answer:
B.
Step-by-step explanation:
Complete the input-output table for log4X. How would I solve this?
Answer:
[tex]x \to f(x)[/tex]
[tex]0.25 \to -1[/tex]
[tex]0.5 \to -0.5[/tex]
[tex]1 \to 0[/tex]
[tex]2 \to 0.5[/tex]
[tex]4 \to 1[/tex]
[tex]8 \to 1.5[/tex]
Step-by-step explanation:
Given
[tex]f(x) = log_4(x)[/tex]
[tex]x = 0.5[/tex]
[tex]f(x) = log_4(x)[/tex]
[tex]f(0.5) = log_4(0.5)[/tex]
Apply law of logarithm
[tex]f(0.5) = \frac{log(0.5)}{log(4)}[/tex]
Using a calculator, we have:
[tex]f(0.5) = -0.5[/tex]
[tex]x = 1[/tex]
[tex]f(x) = log_4(x)[/tex]
[tex]f(1) = log_4(1)[/tex]
Express 1 as 4^0
[tex]f(1) = log_4(4^0)[/tex]
Apply law of logarithm
[tex]f(1) = 0*log_4(4)[/tex]
[tex]f(1) = 0[/tex]
[tex]x = 2[/tex]
[tex]f(x) = log_4(x)[/tex]
[tex]f(2) = log_4(2)[/tex]
Apply law of logarithm
[tex]f(2) = \frac{log(2)}{log(4)}[/tex]
Using a calculator, we have:
[tex]f(2) = 0.5[/tex]
[tex]x = 4[/tex]
[tex]f(x) = log_4(x)[/tex]
[tex]f(4) = log_4(4)[/tex]
[tex]log_a(a) = 1[/tex]
So:
[tex]f(4) = 1[/tex]
[tex]x = 8[/tex]
[tex]f(x) = log_4(x)[/tex]
[tex]f(8) = log_4(8)[/tex]
Apply law of logarithm
[tex]f(8) = \frac{log(8)}{log(4)}[/tex]
Using a calculator, we have:
[tex]f(8) = 1.5[/tex]
So, the complete table is:
[tex]x \to f(x)[/tex]
[tex]0.25 \to -1[/tex]
[tex]0.5 \to -0.5[/tex]
[tex]1 \to 0[/tex]
[tex]2 \to 0.5[/tex]
[tex]4 \to 1[/tex]
[tex]8 \to 1.5[/tex]
Help ASAP pleaseeee. I will give brainliest!!
Make a list of all the possible outcomes of a three‐color spinner that is spun four times in a row.
There is 81 possible outcomes
Express the null hypothesis and the alternative in symbolic form. Use the correct symbol (μ, p, σ ) for the indicated parameter.
An entomologist writes an article in a scientific journal that claims that fewer than 16 in 10,000 male fireflies are unable to produce light due to a genetic mutation. Use the parameter p, the true proportion of fireflies unable to produce light.
A. H0:p<0.0016
H1:p≥0.0016
B. H0:p=0.0016
H1:p<0.0016
C. H0:p=0.0016
H1:p>0.0016
D. H0:p>0.0016
H1:p≤0.0016
Answer:
A. H0:p<0.0016
H1:p≥0.0016
Step-by-step explanation:
An entomologist writes an article in a scientific journal that claims that fewer than 16 in 10,000 male fireflies are unable to produce light due to a genetic mutation.
This means that the null hypothesis is that the proportion is less than the proportion explicited, that is:
[tex]H_0: p < \frac{16}{10000}[/tex]
[tex]H_0: p < 0.0016[/tex]
At the alternate hypothesis, we test if the claim at the null hypothesis is wrong, that is, if the proportion is equals or more to this value. So
[tex]H_1: p \geq 0.0016[/tex]
The correct answer is given by option A.
Which statement correctly describes intersecting lines?
Intersecting lines are always the same distance apart.
All intersecting lines cross to form four right angles.
Intersecting lines cross at one point.
The intersecting lines cross at one point
What are the angles formed by 2 intersecting lines?Two straight lines that intersect at the same location are said to be intersecting lines. The junction point is the place where two intersecting lines meet. Four angles are created when two lines cross. The four angles added together always equal 360 degrees.
Perpendicular lines are two straight lines that intersect and form right angles. When two perpendicular lines intersect, they form four right angles.
When lines intersect, two angle relationships are formed:
Opposite angles are congruent
Adjacent angles are supplementary
Given data ,
Let the first line be represented as A
Let the second line be represented as B
Now , the lines A and B are not parallel lines and they intersect
So , the point of intersection of the two lines is P
The coordinates of the point of intersection is P ( x , y )
When lines intersect, two angle relationships are formed:
Opposite angles are congruent
Adjacent angles are supplementary
Hence , the lines intersect at one point
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Jeremy homeowners policy has a face value of 56,400 and a 750 deductible. How much will the insurance pay on a a 1,612 loss
Answer: 862
Step-by-step explanation:
A deductible refers to the amount of money that one will have to pay himself or herself toward an insured loss.
It should be noted that when a disaster occurs, the amount of the deductible will be subtracted from the loss. Since the loss is 1612 and the deductible is 750, the insurance company will pay:
= 1612 - 750
= 862
Find the value of x :)
Answer:
x = 20
Step-by-step explanation:
→ Remember how many degrees are on a straight line
180°
→ Set up an equation
2x + 70 + 3x + 10 = 180
→ Simplify
5x + 80 = 180
→ Minus 80 from both sides
5x = 100
→ Divide both sides by 5
x = 20
Answer:
x=20
Step-by-step explanation:
Those add up to 180 degrees because a straight line is 180 degrees
Equation
2x + 70 + 3x + 10 = 180
Add liked terms
2x+3x=5x
5x+80=180
5x+80-80=180-80
Divide both sides by 5
5x=100
x=20
hope this helps and good luck! <3
А ___ has cross-sectional shapes, taken parallel to a base, that are similar but not congruent to one another.
A. Cube
B. Prism
C. Pyramid
D. Polygon
А prism has cross-sectional shapes, taken parallel to a base, that are similar but not congruent to one another. Therefore, option B is the correct answer.
What is a Congruent shape?The definition of a congruent polygon is a polygon that is the same shape, has the same length of sides, and has the same interior angles as the polygon it is being compared to. Congruent shapes must all be the same type of shape in order to fulfill the requirement.
The cross section of prism is the shape obtained when the prism is intersected by a plane. If the prism is cut by a plane horizontally, parallel to the base, then the shape of cross section will be equal to the shape of base.
Therefore, option B is the correct answer.
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What is the value of x and why
Answer:
x = 7.5
Step-by-step explanation:
If two scants are drawn from a point outside the circle then the product of one secant and its external segment is equal to the product of other secant and its external segment.
By applying this property in the picture attached,
OB × OA = OC × OD
(6 + 3)6 = (12 - x)12
54 = 144 - 12x
12x = 144 - 54
12x = 90
x = 7.5
Which figure is an example of perpendicular lines?
Answer:
what school do you have
Step-by-step explanation:
what is the measure of angle p enter your answer as a decimal in the box round only your answer to the nearest hundredth
Dobie works as a window washer, and finds lots of time to think while working. He notices when windows are cracked, and fells that the number of cracked windows has been increasing. He wants to determine if this increase is statistically significant by applying a control chart. He collected data for the past 10 days measuring the number of cracked windows he observed per shift.
What is the UCL?
a. 5.90
b. 59.00
c. 13.19
d. 2.42
The LCL?
a. 0
b. 20.14
c. 5.90
d. 2014
Is the number of observed cracked windows within control limits?
a. No
b. Yes
Day Day Day Day Day Day Day Day Day Day
# of cracks 1 2 3 4 5 6 7 8 9 10
3 4 2 4 6 5 8 8 7 12
Dobie noted that the windows he washes may have multiple panes per window. So, rather than counting cracked windows, Dobie instead converts the prior data into cracked window panes. Based on the data below:
Day Day Day Day Day Day Day Day Day Day
# of cracks 1 2 3 4 5 6 7 8 9 10
6 11 4 12 13 12 11 13 7 19
What is the UCL?
a. 13.19
b. 23.66
c. 20.66
d. 10.80
The LCL?
a. 0
b. 10.8
c. 0.94
d. 3.29
Is the number of observed cracked window panes within control limits?
a. Yes
b. No
Is Dobie’s theory that the number of cracked window panes is increasing valid?
a. No
b. Yes
PLEASE HELP ILL MARK BRAINLIEST
Answer:
convert it to improper fractions first
Step-by-step explanation:
4 x 7 + 3 = 31
So, 7 3/4 = 31/4
Similarly, 5 x 2 + 2 = 12
So, 2 2/5 = 12/5
Now we have,
31/4 - 12/5
Make the denominators same....
Multiply both the denominators by each other...
4 x 5 and 5 x 4 = 20 both the denominators equal to 20.
Now multiply the numerators like that
so, 31 x 5 and 12 x 4
equals to 151/20 and 48/20
Now subtract both ...
151-48 = 103
So the answer is 103/20
Hope it helps!!!
What is the measure of angle R?
Enter your answer as a decimal in the box. Round only your
final answer to the nearest hundredth.
m_R=
Answer:
28.07°
Step-by-step explanation:
sin R = 8/17
arcsin R = 28.07
simplify the first expression 5 (m + 1) -1
Answer:
5m+4
Step-by-step explanation:
(5m)+5(1)-1
5m+5-1
Answer:
5m+4
Step-by-step explanation:
You basically do the distribution property with the 5(m+1)= 5(m)+5(1)-1
5m+5 - 1
5m+4
hewp pwease ☺️thanks
The Answer Is 35 Inches Squared
in a box of 63 marbles, 4 out of 7 marbles are red. How many red marbles are in the box?
Answer:36
Step-by-step explanation:
In ΔGHI, the measure of ∠I=90°, IH = 84, GI = 13, and HG = 85. What ratio represents the tangent of ∠H?
9514 1404 393
Answer:
13/84
Step-by-step explanation:
The relevant trig ratio is ...
Tan = Opposite/Adjacent
tan(H) = GI/HI
tan(H) = 13/84
what its 600+600 pls help
Answer:
1200 hope this helps you;)
Answer:
1200 lol
Step-by-step explanation:
A box contains 4 bags of flour. The total mass of all 4 bags is 8kg. What is the mass of each bag in cg?
.Use the following data set to answer the questions below.
8, 15, 17, 19, 21, 82
1. What is the mean?
2. What is the median?
3. Is there an outlier? If so, what is the outlier?
4. What is the mean without the outlier?
Answer:
1. The mean is 162 divided 6 = 27 which is like 27 x 6 = 162
2. So since 17 and 19 are in the middle of course you will have to add that together 17 + 19 = 36 but then you MUST ALWAYS divide by 2 which 36 divided by 2 = 18
3. Yes there is a outlier. and i believe it's 82
4. i believe the mean will be 80 but then divided by 5 will be 16
hope this helped :D
Step-by-step explanation:
can you help me with this question i will give 40 points?
Plz help this is due today i would have done it myself but i totally forgot about these so PLZ HELP AND NO LINKS AND NO GROSS PICTURES OR I REPORT
Answer:
b)
Step-by-step explanation:
lol ;)
Answer:
a i hoped i helped
Step-by-step explanation:
Which of the following inequalities matches the
graph?
HELPPP 50 points. FASTTTT THANK YOU
Hope this helped. The answer is in the picture.
○( ＾皿＾)っ
Answer: I can think of is c but tell me if I'm wrong
Step-by-step explanation:
If p and q vary inversely and p is 22 when q is 17, determine q when p is equal to 187
Answer:
Q=2
Step-by-step explanation:
p=k/q
When P=22, q=17
22=k/17
k=374
When p =187
187=374/q
187q=374
q=2
The value of q when the value of p is 187 will be equal to 2
What is the constant of proportionality?Two numerical sequences, often experimental data, are said to be proportional or directly proportional if their corresponding elements have a constant ratio, which is known as the coefficient of proportionality or proportionality constant.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that p and q vary inversely and p is 22 when q is 17, The
p=k/q
Calculate the value of k when P=22, q=17,
22=k/17
k=374
Calculate the value of q when p =187,
187=374/q
187q=374
q=2
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15
The graph below shows Jason's earnings based on the number of hours he works.
JASON'S EARNINGS
50
45
40
35
30
Earnings (dollars)
25
20
15
10
5
0 1 2 3 4 5 6 7 8
Number of Hours Worked
What point on the graph represents Jason's hourly pay rate?
А
(0,0)
B
(1, 15)
C (2, 30)
D
(3.45)
Answer:
B) (1,15)
Step-by-step explanation:
Because 1/15= 15 and so does everything else. But it iS the first point that we look at to see the answer of the rest.
if y varies inversely as x and y=3 when x=14, find x when y=6
Can someone please help me with the missing number?
Answer:
48
Step-by-step explanation:
16/10=1.6
1.6X30=48 :)
A.34
B.268
C.2,145
D.17,157