Mark needs to buy 42 stamps to send out invitations tor his birthday party. Will 3 sheets of stamps be enough? How do you know?
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Can someone pls pls pls pls pls pls answer these question
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Step-by-step explanation:
if you replace n = 1
(2)(7)^(1-1)
= (2)(7⁰)
= 2×1
= 2
if n = 2
(2)(7)^(2-1)
= (2)(7)^(1)
= 2×7
= 14
choice 1
help me pls with these 2 i will give brainliest for correct answer
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Answer:
C
Step-by-step explanation:
(0,4) is the intercept
21. A
22. -8
Why? Slope intercept form is y=mx+b
M=slope
B= y intercept
In question 21 there is no number representing b so it is 0
In question 22 it is out of order but because -8 is on the x it is the slope
Hope this helps
Select the three expressions that are equivalent to
-2(4 - 3x) + (5x - 2).
A. 2x - 10
B. 11x - 10
C.-8 + 11x - 2
D. -8 - 11x - 2
E. -8 + 6x + 5x - 2
F. -8 - 3x + 5x - 2
What mathematical process did you use to
simplifying the expression above?
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Answer:
B
Step-by-step explanation:
-2(4 - 3x) + (5x - 2)=
-8+6x+5x-2=11x-10
when there is a number in front of () you multiple every number that is inside the ()
Triangle P N M is shown. The length of P N is 7, the length of N M is 8, and the length of M P is 11.
Law of cosines: a2 = b2 + c2 – 2bccos(A)
Which equation correctly applies the law of cosines to solve for an unknown angle measure?
72 = 82 + 112 – 2(8)(11)cos(N)
82 = 72 + 112 – 2(7)(11)cos(M)
72 = 82 + 112 – 2(8)(11)cos(P)
82 = 72 + 112 – 2(7)(11)cos(P)
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Answer:
8^2 = 7^2 + 11^2 – 2(7)(11)cos(P)
D.
Step-by-step explanation:
Edge 2021
The equation correctly applies the law of cosines to solve for an unknown angle measure is equation D.
What is a Triangle?A triangle is a polygon with three sides, three vertices, and three angles.
The length of P N is 7,
The length of N M is 8, and
The length of M P is 11.
The law of cosines is used to determine the missing sides and angles if two sides and an angle are given or three sides are given respectively.
The equation that correctly applies should have the two sides and the cosine of the included angle.
The correct equation is 8² = 7² + 11² – 2(7)(11)cos(P)
To know more about Triangle
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Percy has $50 in a savings account. The interest rate is 10% per year and is not compounded. How much will he have in 1 year?
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Answer:
Step-by-step explanation:
Take the 50 and multiply by 1.1 (this is 10% if you dont want to go .1 and add that to 50)
50*1.1=x
50*1.1=55
There will be a total of 55 Dollars in the savings account. He has earned 5 dollars in interest.
Hope This helps :)
Answer:
70
Step-by-step explanation:
just doubled
PLEASE HELP ASAP I WILL GIVE BRAINLIEST TO FIRST CORRECT ANSWER
Find the values of x, y and z.
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Answer:
X = 53 degrees
Y = 74 degrees
Z = 53 degrees
Step-by-step explanation:
So if you knew that all angles in triangles add up to 180 degrees. You first want to find Y. 180 - 36 - 70 is equal to 74. So, Angle Y is 74 degrees. Line XYZ is a line that has a 180 degree on there. So 180 - 74 and divide that by 2 to find X and Z. 180 - 74 is 106. 106/2 = 53. Therefore, X and Z are 53 degrees, Y is 74 degrees.
Y =74
Step-by-step explanation:
Add the number till u get 180
True or false...
When using the substitution method, one of the equations must say "x=" or "y=".
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Answer:
true
Step-by-step explanation:
I’m sorry if I’m wrong
The diameter of a cone is 4 centimeters and has a height of 6 centimeters. How much
greater is the volume of a cylinder that has the same diameter and same height?
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If u can solve 6 word problems in 5 minutes how many could you solve per minute?
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Answer:
You can solve 1.2 word problems per minutes
Step-by-step explanation:
If 6 word problems were solved in 5 minutes, you must put this into a fraction. We're looking for how many word problems could be solved per minute, so we divide 5 by itself to get 1 and whatever you do to the bottom, you must do to the top, so 6 divided by 5 is 1.2
Hope this helped ;)
Z-31=16??? I just got into the Z section in algebra and my teacher gave us a paper with no explanation plz help ty!
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Answer:z=47
Step-by-step explanation:
You're doing this because if you have z-31=16 you have to + 31 to 16 which would give you 47 then that would be a one step equation
z-31=16
you would make a line between the equal sign so it is organized then plus 31 to sixteen then that would get you to 47
Which expression is equivalent to 12x + 20y?
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What is the length of the unknown side?
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Answer:
use Pythagoras theorem
✓12x12+16x16
✓400
20
Answer:
20
Step-by-step explanation:
Hope this helped!
The equation shown has an unknown number.
Blank divided by 3/7 = 7/15
Enter a fraction that makes the equation true
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Answer:
45/49
Step-by-step explanation:
For every 2 apples in kail's orchard,there are 4 pears. In sam's orchard , there are 10 pears for every 5 apple. If the number of pears in proportional to the number of apples, What is constant proportionality
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Answer:
2/5
Step-by-step explanation:
cause u divied
Carina is painting the outside of a square pyramid. The net for the pyramid is shown below. 3 cm 4 cm Enter the total surface area, in square centimeters, of the pyran that Carina will paint.
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I need help with this question
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when divining two exponents with the same base, you subtract the bottom from the top exponent : 7-3 = 4
9. A 16-ft ladder is leaning against the side of a house. The ladder touches the ground 9 ft away from the house. What angle does the ladder make with the ground?
Round to the nearest WHOLE number.
Note: this is a trigonometry question
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Answer:
Check pdf
Step-by-step explanation:
55.77°
EXPLANATION:In ◣ ABC, (consider the diagram)
cosΦ = b/h = 9/16
cosΦ = 9/16
Φ = 9/16 × cos-¹
Φ = 55.77
Hence, the angle between the ladder and ground is approximately 56°.
Find the percent of increase from 36 inches to 43 inches. Round to the nearest tenth of a percent if necessary.
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Answer:
27.78
Step-by-step explanation:
(46-36):36*100 =
(46:36-1)*100 =
127.77777777778-100 = 27.78
Now we have: What is the percentage increase/decrease from 36 to 46 = 27.78
A box has a height of 5 cm a Length
os 6 cm and a width of 2 cm
What is its volumes
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round 2.85 to the nearest hunderdth
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On rounding to nearest hundredths, we get than 2.85 as at thousandths place, there is 9 which is greater than 5, so 1 is added to the hundredth value.
I need help figuring out the answer. please help
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Answer:
it' b
Step-by-step explanation:
450 multiply by 5 = 2250
375 multiply by 4 = 1,500
1500+2250 ,=3750URGENT HELP !!!!!! Answer correctly !!!!!!!!!!!! Will be marking brainliest !!!!!!!!!!!!!!
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Answer: 6.32 (rounded)
Step-by-step explanation:
You need to use the pythagorean theorem. 2^2+6^2=c^2.
4+36=40
square root of 40 is 6.324 when rounded
The sum of the measures of the angles of the triangle is 180 degrees. What is the value of each angle in the triangle if angle one is (3x + 51), angle two is (x) and angle three is (x + 19)
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Answer:
the answer is 180/90 = 2
Step-by-step explanation:
What is the inverse function of f(x) = x/x-2?
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Explanation: y(x-2)=x
X•y-x=2y
X(y-1)=2y
So, x=2y/y-1
Shrings dining room table is round and has a radius of 4.5 feet. What is the tabletops area? Plz
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Answer:
The answer should be 63.63! you might need to round it to 63.6 or 64
Step-by-step explanation:
https://wfs.fireflycloud.net/resource.aspx?id=677205
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Answer:
huh????????????????.??????
Annual sales for a company are $155,000 and increases at a rate if 8% per year for 9 years
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155,000 + 12,400 = 167,400
- this is the rate for one year, find 8% of 167,400 and use addition to add your answer to 167,400 find the cost of the 2nd year, keep doing this until you have reached 9 years
The value of annual sales in 9 years is $309,845.72.
What is the value of annual sales in 9 years?In order to determine the annual sales of the company in 9 years, the formula to be used is:
FV = P (1 + r)^n
Where:
FV = Future value P = Present value R = interest rate N = number of years$155,000 x (1.08)^9 = $309,845.72
To learn more about future value, please check: https://brainly.com/question/18760477
due tomorrow i need help
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How do I find measures to interior angles
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Answer:
Just add all the angles together, and see if they add up to 180 degrees
Hope this helped! Have a nice day! Plz mark as brainliest!!! :D
-XxDeathshotxX
brainliest for the fastest answer!!!!!!!!
its super easy
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Answer:
The answer is B number os shoes ihope it help