Answer:
p = -2
Step-by-step explanation:
15 = -4p + 7
4p + 15 = 7
4p + 15 - 15 = 7 - 15
4p = -8
4p/4 = -8/4
p = -2
Is the relationship linear, exponential, or neither ?
Answer:
Linear
Step-by-step explanation:
Answer:
Linear, there is a constant rate of change
Step-by-step explanation:
How many square inches of paper would you need to cover this entire prism
What is the value of x in this equation?
-4x + 8 = 42
Answer:
-4x+8=42
-4x+8-8=42-8
-4x=34
-4x/-4=34/-4
x = -8.5
please help now thank u
Answer:
ans 23 this is the ans
Step-by-step explanation:
What is -2x-5=4????
Answer:
-9/2
Step-by-step explanation:
-2x-5 = 4
+5 +5
-2x = 9
------ ------
-2 -2
x = -9/2
Answer:
[tex]x = - \frac{9}{2} [/tex]
Step-by-step explanation:
1) Add 5 to both sides.
[tex] - 2x = 4 + 5[/tex]
2) Simplify 4 + 5 to 9.
[tex] - 2x = 9[/tex]
3) Divide both sides by -2 to get the answer.
[tex]x = - \frac{9}{2} [/tex]
hence, the answer is x = -9/2.
Find the values of the sine, cosine, and tangent for ZA.
(TOP OF TRIANGLE IS (A))
[tex]\bigstar\:{\underline{\sf{In\:right\:angled\:triangle\:ABC\::}}}\\\\[/tex]
AC = 7 mBC = 4 m⠀⠀⠀
[tex]\bf{\dag}\:{\underline{\frak{By\:using\:Pythagoras\: Theorem,}}}\\\\[/tex]
[tex]\star\:{\underline{\boxed{\frak{\purple{(Hypotenus)^2 = (Perpendicular)^2 + (Base)^2}}}}}\\\\\\ :\implies\sf (AB)^2 = (AC)^2 + (BC)^2\\\\\\ :\implies\sf (AB)^2 = (AB)^2 = (7)^2 = (4)^2\\\\\\ :\implies\sf (AB)^2 = 49 + 16\\\\\\ :\implies\sf (AB)^2 = 65\\\\\\ :\implies{\underline{\boxed{\pmb{\frak{AB = \sqrt{65}}}}}}\:\bigstar\\\\[/tex]
⠀⠀⠀⠀━━━━━━━━━━━━━━━━━━━━━
☆ Now Let's find value of sin A, cos A and tan A,
⠀⠀⠀
sin A = Perpendicular/Hypotenus = [tex]\sf \dfrac{4}{\sqrt{65}} \times \dfrac{\sqrt{65}}{\sqrt{65}} = \pink{\dfrac{4 \sqrt{65}}{65}}[/tex]⠀⠀⠀
cos A = Base/Hypotenus = [tex]\sf \dfrac{7}{\sqrt{65}} \times \dfrac{\sqrt{65}}{\sqrt{65}} = \pink{\dfrac{7 \sqrt{65}}{65}}[/tex]⠀⠀⠀
tan A = Perpendicular/Base = [tex]{\sf{\pink{\dfrac{4}{7}}}}[/tex]⠀⠀⠀
[tex]\therefore\:{\underline{\sf{Hence,\: {\pmb{Option\:A)}}\:{\sf{is\:correct}}.}}}[/tex]
Help a formula word problem. Thank you if you help. You're a genuis!
==========================================================
Explanation:
We start with one block at the very left side. This is algebraically written as [tex]a_1 = 1[/tex]. The small subscript '1' means we're dealing with the first term, and that is set equal to 1. In other words, the first term is 1.
The second term is three since we have three blocks as the next figure down the line. So [tex]a_2 = 3[/tex]. We can then see that [tex]a_3 = 6[/tex] and [tex]a_4 = 10[/tex]
The sequence of the first four terms are: 1, 3, 6, 10.
The notation [tex]a_n = a_{n-1} + n[/tex] tells us "to get the nth term [tex]a_n[/tex], we add the previous term ([tex]a_{n-1}[/tex]) to the value of n".
For example, if we wanted the third term, we would add the second term a2 onto the value of n = 2. In order to know a2, we need the diagram or you would have to use the recursive formula to find it.
Furthermore, it means that to find the fifth term [tex]a_5[/tex], we do the following
[tex]a_n = a_{n-1} + n\\\\a_5 = a_{5-1} + 5\\\\a_5 = a_{4} + 5\\\\a_5 = 10+5\\\\a_5 = 15[/tex]
The fifth figure will have 15 small little blocks to it. You can draw this out by copying the fourth figure, and then adding 5 smaller blocks to the very bottom portion. The sixth figure is basically a copy of the fifth one, but we have six little blocks along the bottom. This is the "plus n" being applied in the recursive formula.
So the 6th figure will have 15+6 = 21 blocks in total while the 7th figure has 21+7 = 28 blocks. This points us to choice (3).
Side note: These are known as triangular numbers. Note how the gaps between consecutive values of 1,3,6,10,15,21,28 is +2,+3,+4,+5,+6,+7.
I haven't been using this for 1 year and 1/2. I got charged $24.00 out of no where! I want my money back!
Answer:
I cannot help you with that because I have the free part.
Maybe un-subscribe or go to the faq site for Brainly and ask that question there.
Step-by-step explanation:
Hope that this helps you out! :)
If you have any questions please put them in the comment section below this answer.
Have a great rest of your day/night!
Please thank me on my profile if this answer has helped you.
Which statement is true about this set of data?
43, 50, 60, 36, 47, 50, 52, 78
A. The range is 31.
B. The mode is 78
C. The median is 51
D. The mean is 52.
Answer:
D. The mean is 52.
Step-by-step explanation:
In order to find the mean, you add up all of the numbers and then divide that answer by how many numbers there are.
43+50+60+36+47+52+78=416
416/8=52
Answer:
D. The mean is 52.
Step-by-step explanation:
Add all numbers in the set:
36+47+50+50+52+60+78= 416
Now, divide the sum by how many numbers are in the set; in this case, there are 8 numbers so:
416÷ 8= 52
1. Hannah bought a package of 12 pens.
She took of the pens to school. How
many pens did Hannah take to school?
Answer:
12
Step-by-step explanation:
If Hannah bought 12 pens and brought them to school, then she would have brought 12 pens to use during school.
a woman sold an article for 400.00and made a profit of 25%,Find ty cost price and profit
Answer:
$100 profit, $300 cost
Step-by-step explanation:
So 25% of $400 is $100, now we know she made $100 on the article
and the other $300 was the amount used to make the article i'm asuming
A woman sold an article for 400.00
made a profit of 25%
Cost price and profit is $100 profit, $300 cost.
What are the 4 types of profit?There are four levels of profit or profit margins: gross profit, operating profit, pre-tax profit, and net profit.
These are reflected on a company's income statement in the following sequence: A company takes in sales revenue, then pays direct costs of the product of service.
What is profit and example?Profit is a term that often describes the financial gain a business receives when revenue surpasses costs and expenses. For example, a child at a lemonade stand spends one quarter to create one cup of lemonade. She then sells the drink for $2. Her profit on the cup of lemonade amounts to $1.75.
To learn more about Profit, refer
https://brainly.com/question/12225249
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Emi computes the mean and variance for the population data set 87, 46, 90, 78, and 89. She finds the mean is 78. Her steps for finding the variance are shown below.
sigma squared = StartFraction (87 minus 78) squared + (46 minus 78) squared + (90 minus 78) squared + (78 minus 78) squared + (89 minus 78) squared Over 5 EndFraction. = StartFraction 9 squared minus 32 squared + 12 squared + 0 squared + 11 squared Over 5 EndFraction. = StartFraction 81 minus 1,024 + 144 + 0 + 121 Over 5 EndFraction. = StartFraction negative 678 Over 5 EndFraction. = negative 135.6
What is the first error she made in computing the variance?
Emi failed to find the difference of 89 - 78 correctly.
Emi divided by N - 1 instead of N.
Emi evaluated (46 - 78)2 as -(32)2.
Emi forgot to take the square root of -135.6.
Answer:
135.6
i think
Step-by-step explanation:
Emi evaluated (46 - 78)² as -(32)². The variance of the given data is 274. Therefore, option C is the correct answer.
Given that, the population data set is 87, 46, 90, 78, and 89.
Here, mean = [tex]\bar x[/tex] =78 and n=5
We know that, mean [tex]\bar x=\frac{\sum x_i}{n}[/tex] and variance = [tex]\sigma^2=\frac{\sum (x_i-\bar x)^2}{n}[/tex].
Here, σ² = [(87-78)²+(46-78)²+(90-78)²+(78-78)²+(89-78)²]/5
= (9²+(-32)²+12²+0²+11²)/5
= (81+1024+144+121)/5
= 1370/5
= 274
So, the variance is 274.
Therefore, option C is the correct answer.
Learn more about the variance here:
https://brainly.com/question/29615374.
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what are the coordinates of the vertex of the graph or table is it a maximum or minimum
Answer:
I'm pretty sure the answer is D.!
7. What is the image of p for a dilation with center (0,0) and a scale factor of 2.5?
A (-2.5, 5)
B (2.5, -5)
C (2, 2.5)
D (-5, -2.5)
Answer:
A (-2.5, 5) Might Not Be Right
Step-by-step explanation:
Use what you've learned to write the equation of a parabola that is narrower than y = x ,
2
opens downward, and has vertex (2, – 4).
Answer:
y = -a(x – 2)² – 4
a > 1
Example:
y = -2(x – 2)² – 4
Step-by-step explanation:
y = a(x – h)² + k
____________________
vetex: (h, k)
a: vertical reflection or stretch/compression
__________________________________
If it opens downward, has a vertex of (2, -4) and is narrower than y = x².
Then x² will have a negative coefficient of less than -1 and the input of x will be subtracted by the x value of the vertex which is 2, and the output will be added by the y value of the vertex which is -4.
Therefore y = -a(x – 2)² – 4 where a > 1
A tv has a listed price of $610.99 before tax. if the sales tax rate is 9.25%, find the total cost of the tv with sales tax included.
Answer:
$667.51
Step-by-step explanation:
610.99 times .0925 is 56.516575. 56.516575 plus 610.99 is 667.506575. That rounded to the nearest cent is 667.51.
Answer: the cost plus tax would be 667.51
The sales tax comes to a total of 56.52
What is the area of figure c and b ?
Answer:
where is the figure c and b?
solve the following equation
x/3 +4 =7
Answer:
Sorry if im wrong..
Step-by-step explanation:
7 = (7 x)/3 + 4 = 21 x + 4 = 7
PLEASE HELP ITS DUE RIGHT NOW
what is the answer to this equation 3 + 3/2x + 4 = 4x - 5/2x
Answer:
No solution
Step-by-step explanation:
When we take the 5/2 x to the other side, 4x and 4x cancels out. We get 7=0 which is incorrect. Therefore, x has no solution.
By the way, can you follow me on Brainly?
Thanks!
Answer:
x= [tex]\frac{7 (+-) \sqrt{113} }{8}[/tex]
Step-by-step explanation:
Prepare depreciation schedules using Straight-Line, Units-of-Production, and Double-Declining Balance Depreciation.
Answer:
f
Step-by-step explanation:
f
What is 55 times 66 divied by 45
Answer:
3630 divided 45
80.666667
.Answer:
80.6666667
Step-by-step explanation:
BRAINLESS PLZ
You select a marble without looking and then put it back. If you do this 6 times, what is the best prediction possible for the number of times you will pick a green marble?
help fast
Answer:
the possible prediction of getting a purple or blue is 2 out of 6
Step-by-step explanation:
(hope this helps can i plz have brainlist :D hehe)
How do you calculate distance
Answer:
d = st,
Step-by-step explanation:
Distance= speed times rate
2 Which is a factor of x² + 5x – 24?
1) (x + 4)
2) (x - 4)
3) (x + 3)
4) (x – 3)
Answer:
(X+3)
Step-by-step explanation:
if a store sells a packet of gum for R5.50 what will the cost for the gum be if you add the vat
Answer:
Step-by-step explanation:
It can be anything according to your value added tax.
2x+1.25=3.5 find the value of x
Answer:
x=1.125
Step-by-step explanation:
Isolate the variable by evalaluting
Answer:
1.125
Step-by-step explanation:
subtract 1.25
2x = 2.25
divide by 2
x = 1.125
Determine the slope of the line that is perpendicular to the line shown in the picture below.
A. 3
B. 1/3
C. -3
D. 1/3
Answer:
-1/3 i think i might be wrong
Step-by-step explanation:
Answer:
-1/3 because 3/-1 = -3 and -3/3=-1
Step-by-step explanation:
????????????????? I NEED HELP WITH THIS WILL GIVE BRAINLIEST
Answer:
#3 is 40
#4 is 90
Step-by-step explanation:
Amy buys 23 envelopes for 16p each and pays with a £5 note. How much change does she get? Give your answer in pounds
Answer: £1.32
Step-by-step explanation:
Amy buys 23 envelopes and each of them cost 16p.
1p makes a pound so 16 pence is £0.16.
23 envelopes would cost:
= 0.16 * 23
= £3.68
Her change in Pounds would be:
= 5 - 3.68
= £1.32