Answers
Well you can either straight up subtract from the total degrees of a triangle using the sum of both of the given angles, which would equal x, or you can make an equation. I’ll do both.
180-78-51=51, x=51
78+51+x=180
129+x=180
x=180-129
x=51
Related Questions
Terry says, “I have 8 cousins."
Rita
says, “Then
you have one less than three times as many as I do." How
many cousins does Rita have?
Answers
Answer:
Rita has three cousins.Step-by-step explanation:
We must reverse this operation in order to solve it.
First, add one cousin to 8.
8 + 1 = 9.
Then, divide 9 by 3.
9 / 3 = 3.
Rita has three cousins.Dan earns £8.80
per hour. How much will he earn for 7 hours work
Answers
Answer:£61.6 in 7 hours
Step-by-step explanation:
£8.80*7=£61.6
Divide. Express your answer in simplest form.
8 divided by 2 4/9
Answers
Answer:
Step-by-step explanation:
8 ÷ 2 4/9
36/11 or 3 3/11 or 3.27
Answer:
In exact form it is 36/11. In decimal form it is 3.277777 going on forever. And last is mixed number form 3 3 11.
Step-by-step explanation:
130 adults with gum disease were asked the number of times per week they used to floss before their diagnoses. The
(incomplete) results are shown below:
Cumulative Frequency
# of times floss per week
0
1
12
Frequency
12
21
13
Relative Frequency
0.0923
0.1615
0.1
0.1385
33
2
46
64
20
0.1538
100
0.1308
117
0.1
130
Answers
Answer:
a. The answers obtained are as follows:
Frequency for flossing 7 times per week = 24
Relative frequency for flossing 4 times per week = 0.1231
Cumulative Frequency at flossing 1 time per week = 22
b. The Cumulative Relative Frequency at flossing 7 time per week is 100%.
Step-by-step explanation:
Note: This question is not complete and the data in it are merged together. The complete question is therefore provided with the sorted data before answering the question. See the attached pdf file for the complete question.
The explanation to the answers is now provided as follows:
a. Complete the table (Use 4 decimal places when applicable)
Note: See part a of the attached excel for the complete table (answers are in bold red color)
Frequency is the rate at which something or an event occurs in a particular sample.
Since we already have frequency for others flossing times per week and we have 130 adults as the sample, the frequency for flossing 7 times per week is calculated by deducting the frequencies of others from 130 as follows:
Frequency for flossing 7 times per week = 130 – 10 – 12 – 14 – 18 – 16 – 21 – 15 = 24
Relative Frequency refers to the fraction of times an event occurs. The relative frequencies in this question are calculated by dividing each frequency by the total number of adults in the sample, i.e. 130. The relative frequency for flossing 4 times per week is therefore calculated as follows:
Relative frequency for flossing 4 times per week = Frequency for flossing 4 times per week / Total number of adults in the sample = 16 / 130 = 0.1231
Cumulative Frequency is calculated by adding the current frequency to the previous Cumulative Frequency. The Cumulative Frequency at flossing 1 time per week is therefore calculated as follows:
Cumulative Frequency at flossing 1 time per week = Cumulative Frequency at flossing 0 time per week + Frequency at flossing 1 time per week = 10 + 12 = 22
b. What is the cumulative relative frequency for flossing 7 times per week? %
Note: See part b of the attached excel for the complete table (answer is in bold red color)
The cumulative relative frequency refers to the accumulation of the previous relative frequencies.
Cumulative Relative Frequency is calculated by adding the current relative frequency to the previous Cumulative Relative Frequency. It should be noted that the first cumulative relative frequency equal to the first relative frequency.
The Cumulative Relative Frequency at flossing 7 time per week is therefore calculated in the attached excel file as follows:
Cumulative Relative Frequency at flossing 1 time per week = Cumulative Relative Frequency at flossing 6 times per week + Relative Frequency at flossing 7 times per week = 0.8154 + 0.1846 = 1.0000
Since the question indicates that the Cumulative Relative Frequency at flossing 7 time per week should be stated in percentage term, we therrefore have:
Cumulative Relative Frequency at flossing 7 time per week = 1.0000 * 100 = 100%.
PLEASE PLEASE HELP.
Answers
Answer:
120 square feet
Step-by-step explanation:
they are similar so they are in a ratio 20/10=2 so smaller triangle is twice the larger one 6×2=12ft
area of triangle =1/2×base×height
=1/2×20×12
=120 square feet
Please help me
Excellent help needed
Answers
Answer:
All of the following have the same solution except b + 2 = 8
Answer:
the answer is D.
Step-by-step explanation:
A. [tex]50 = 5 m = 10=m[/tex]
B. [tex]x-6=4 = x=10[/tex]
C. [tex]w/5=2 = w=15[/tex]
D. [tex]b+2=8 = b=6[/tex]
hope this helps and feel free to give brainiest
CAUSE EFFECT Desire to turn U.S. citizens against Germany Which of the following government agencies would complete the chart? War Industries Board Selective Service Act The National War Labor Board Committee of Public Information
Answers
Answer:
Committee of Public Information
Step-by-step explanation:
The correct answer in the cause to turn US citizens against Germany should be the Committee of Public Information which was created in World War I.Which of the following shows a translation of f(x) two units to the right?
f(x + 2)
f(x - 2)
f(x) - 2
f(x) + 2
Answers
Answer:
f(x-2)
Step-by-step explanation:
This is because f(x)-2 or f(x)+2 is moving it up or down and f(x+2) seems like it would be the right answer but it is reversed when it's in parenthesis so it would actually be moving 2 to the left.
Answer:
its f (x-2)
Step-by-step explanation:
i got this on my quiz and i got it right! i hoped this helped!!!
Find the total amount you will pay given original price of $24.99and tax rate of 5%
Answers
Answer: $26.24
Step-by-step explanation:
Same method
HURRY THIS IS TIMED. I WILL GIVE BRANIEST IF CORRECT. EXPLAIN YOUR ANSWER!! THX
Answers
Answer: A and c
Step-by-step explanation: because they are the only ones that have p,x,m and not just seperate.
what is the equation of a line that passes through 0,4 and 3,6?
Answers
Answer:
[tex]y = \frac{2}{3}x + 4[/tex]
Step-by-step explanation:
y = mx + b
4 = m(0) + b
b = 4
6 = m(3) + 4
2 = 3m
m = 2/3
which equation is a point slope form equation for line AB? y+1=−32(x−4) y+1=32(x−4) y+1=−23(x−4) y+1=23(x−4) A graph with a line running through point A, with coordinates (4, -1), and point B, with coordinates (-2, 3)\]
Answers
Answer:
3
Step-by-step explanation:
6. Spiderman is three times as old as Superman.
The sum of their age is 160. How old are each of
them?
Answers
Superman 40
Answer:
Spiderman is 120, and Superman is 40.
Step-by-step explanation:
40 x 3 = 120
120 + 40 = 160
What are the x-intercept and y-intercept of the graph of y=−12x+4? please answer asap will give brainliest
Answers
Answer:
x= 1.16 y=14 ...........
Answer:
x intercept= -1/2
y intercept= 4
Step-by-step explanation:
its easy, the answers are in the equation- y=−1/2x+4
A plane flies at an altitude of 3.5 kilometers and then starts to descend when it is 60
kilometers from the runway. What is the angle of depression for the descent of the plane?
Round to the nearest degree.
Answers
Answer:
Angle of depression = 3.37°
Step-by-step explanation:
We are told that A plane flies at an altitude of 3.5 kilometers and then starts to descend when it is 60
kilometers from the runway.
I've attached an image of a triangle depicting this question.
From the triangle, we can find the angle of depression θ from trigonometric ratio since it's a right angle triangle.
Thus;
3.5/60 = tan θ
tan θ = 0.0583
θ = tan^(-1) 0.0583
θ = 3.37°
-8-x=x - 4x
How do I solve this
Answers
2. add x on the left to the -3x on the right
3. then divide 8 by 2
4. get the answer X = 4
a corner self is 1/4 of a circle and has the radius of 10.5 inches. enter the area of the self in square inches. can you round it to nearest hundredth?
Answers
Answer:
The area of the shelf is 86.59 square inches
Step-by-step explanation:
The formula of the area of the circle is A = π r², where
r is the radius of the circle∵ The corner shelf is [tex]\frac{1}{4}[/tex] of a circle
→ That means its area is [tex]\frac{1}{4}[/tex] the area of the circle
∴ The area of the corner shelf = [tex]\frac{1}{4}[/tex] × area of the circle
∵ Area of the circle = π r²
∴ The area of the corner shelf = [tex]\frac{1}{4}[/tex] × π r²
∵ The radius of the shelf is 10.5 inches
∴ r = 10.5 inches
→ Substitute the values of r in the formula of the area
∴ The area of the corner shelf = [tex]\frac{1}{4}[/tex] × π × (10.5)²
∴ The area of the corner shelf = 86.59014751
→ Round it to the nearest hundredth
∴ The area of the corner shelf = 86.59 square inches
∴ The area of the shelf is 86.59 square inches
Simplify fully 4x^2+4x/2x^2-2
Answers
Answer:
Simplify the expression.
2x³ + 4x² − 2
|\SERIOUS/|
ive been feeling down for multiple days now and i just feel like giving up like i try and people say i can do more so i try harder and they keep saying i can do more and i feel like so much would be better in life if i wasnt on this planet (mars sounds good(: ) and there would be so much less stress and less anxiety in my house without me and everything i touch i either mess up or break and i cant do anything right ever and i try and try and try and try but nothing ever goes right and so im just giving up im not going to be posting for a while so this is the last post for the year maybe
Answers
Answer:
Do not post random subjects in mathematics.
Also, pain is temporary.
If you end your life you just pass it onto someone else.
Try to find people online that understand you. The reason why you can't do anything is because you keep telling yourself that. This sounds cringe but try new things and venture. Try meditation or yoga. If you aren't an open person then you can do breathing exercises in private. While you take in your breath think positively. I hope this advice can help you! Never give up!
Answer:
no
Step-by-step explanation:
what is the product of 9 and 2√90 in the simplest radical form??
Answers
Answer: √90=3√5⋅2=3√10
Step-by-step explanation:
A ring was thrown 12 feet up in the air. After falling back down to the pool level it went 5 feet under that water. How far did the ring travel
Answers
Answer: 17 feet
Step-by-step explanation:
3. The population of a country increases by 2% every year. The current
Population is 3 crores. What would be the population after 3 years?
Answers
Answer:
A=P(1+
100
R
)
n
A=10000(1+0.1)
3
=13310
Step-by-step explanation:
please mark me as the brainliest answer and please follow me
the average American uses 83 gallons of water every day. of you lived in Africa you lived in Africa you would have to walk to collect this water and carry it home. It takes 3 hrs to collect 5 gallons of water.how many hrs to collect 83 gallons of water? round answer to 1 place decimal.
Answers
Answer:
50g
Step-by-step explanation:
83g
3hrs=5g
83/5=16.6
16.6x3=49.8=50g
Anyone know if so help please
Answers
Your Local grocery store is having a special on soda. They're selling a 12-pack of 12-oz cans for $4.75. The 20-oz bottles are also on sale for $0.90. Should "you" buy one 12-pack of 12-oz cans or seven 20-oz bottles?
Answers
Answer:
12 pack
Step-by-step explanation:
Buying 12-pack of 12-oz cans will be the better choice.
What is unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Given here , pack of 12 oz cans at $4.75 and hence volume of such 12 packs = 12 × 12 = 144 oz
and seven 20 oz bottles at $ 6.3 the volume is = 20 × 7 = 140 0z
Hence clearly 12-pack of 12-oz is the better choice
Learn more about unitary method here:
https://brainly.com/question/22056199
#SPJ2
HELP!!!!
Write a recursive rule for the sequence 5, 11, 17, 23...
Answers
Answer:
34
Step-by-step explanation:
every time it goes up it goes little higher each and every time till it reaches a limit
Answer the following parts asked.
Answers
Answer:
[tex]f(n) = 15 + (n + 1)[/tex]
Step-by-step explanation:
Tina earns $15 every week when she mows the lawn.
We would put $15 because she earns $15 every week.
She earns 15 every week, so we would put (n + 1).
Our final answer would be [tex]f(n) = 15 + (n + 1)[/tex]
Answer:
The explicit rule is:
[tex]f(n)=60+15(n-1)[/tex]
After 15 week, Tina will have $270 in her savings account.
Step-by-step explanation:
Let’s write down our sequence so we can see it better.
For the first week (i.e. the first term), Tina has $60.
For the second week (i.e. the second term), Tina has $75.
And for the 3rd, 4th, 5th, and 6th week, Tina has $90, $105, $120, and $135, respectively.
Therefore, we can write the following sequence:
60, 75, 90, 105, 120, 135...
Note that our initial term a is 60.
And our common diffference will be 15.
Let’s find the explicit rule. The standard format for an explicit rule is:
[tex]f(n)=a+d(n-1)[/tex]
Where a is the initial term and d is the common difference.
Let’s substitute 60 for a and 15 for d. Hence, our explicit formula is:
[tex]f(n)=60+15(n-1)[/tex]
So, to find the amount Tina will have in her savings account in 15 weeks, we will substitute 15 for n and evaluate. So:
[tex]f(15)=60+15(15-1)[/tex]
Evaluate:
[tex]\begin{aligned} f(15)&=60+15(14) \\ f(15)&=60+210 \\ f(15)&=270 \end{aligned}[/tex]
Hence, after 15 weeks, Tina would have $270 in her savings account.
What is a question that could be used to collect categorical data??
Answers
5. A girl is told to buy some melons and oranges. Melons are 50c each and oranges 25c each, and she has $2 to spend. She must not buy more than 2 melons and she must buy at least 4 oranges. She is also told to buy at least 6 fruits all together.
Let x be the number of melons
Let y be the number of oranges.
a) Write down four inequalities which must be satisfied.
b) Draw a graph and use it to list the combinations of fruit that are open to her.
Answers
Answer:
a) The four inequalities are;
1) x ≤ 2
2) y ≥ 4
3) x + y ≥ 6
4) 0.5 × x + 0.25 × y ≤ 2
b) The limits of the combinations of fruits that are opened to her, derived using the Chart function on Microsoft Excel are;
1) (0, 8) which is 0 melons and 8 oranges
2) (0, 6) which is 0 melons and 6 oranges
3) (2, 4) which is 2 melons and 4 oranges
Step-by-step explanation:
The price per Melon = 50c = $0.5
The price per orange = 25c = $0.25
The amount she has to spend = $2
The number of melons she must buy ≤ 2
The number of oranges she must buy ≥ 4
The total number of fruits she should ≥ 6
Let x be the number of melons
Let y be the number of oranges
a) The four inequalities are;
1) x ≤ 2
2) y ≥ 4
3) x + y ≥ 6
4) 0.5 × x + 0.25 × y ≤ 2
b) Please find attached the required graph of the combination of fruits the girl buys created with Microsoft Excel
The combinations of the vertices of the feasible combinations that are opened to her, obtained from the creation of the combined graph, using Microsoft Excel are;
1) (0, 8) which is 0 melons and 8 oranges
2) (0, 6) which is 0 melons and 6 oranges
3) (2, 4) which is 2 melons and 4 oranges
y-2 = -3(x + 6), write the equation of the line in slope intercept form.
Answers
Answer: y=-3x-16
Step-by-step explanation:
Slope-intercept form is y=mx+b, where m is slope and b is y-intercept.
y-2=-3(x+6) [distribute]
y-2=-3x-18 [add both sides by 2]
y=-3x-16
Now, we see that the equation above matches the slope-intercept form equation. You can see that m=-3 and b=-16.