Answer:
It's a keyboard XD
What is -3x-y=-24 if Y =3x
Answer:
x= 4 and y= 12
Step-by-step explanation:
solve by substitution
hope this helps :D
Melissa built a square pyramid out of sand. The base of the pyramid has a side length of 18 centimeters. The height of the pyramid is 26
centimeters.
What is the volume of the pyramid?
A. 624 cm3
B. 1,872 cm
C. 2, 808 cm
D. 4,212 cm
E. 8, 424 cm
Answer:
C. 2, 808 cm^3
Step-by-step explanation:
Given that
The base of the pyramid is 18 centimeters
And, the height of the pyramid is 26 centimeters
We need to find out the volume of the pyramid
As we know that
The volume of the pyramid is
= 1 ÷ 3 × base^2 × height
= 1 ÷3 × 18^2 × 26
= 2,808 centimeter^3
Hence, the correct option is c.
What is the value of x for this triangle.
Answer:
13
Step-by-step explanation:
you have to use Pythagorean Theorem which is
(a^2) + (b^2) = (c^2)
where a and be are the legs 45° from each other and c is the hypotenuse.
so just plug in the numbers
5^2 + 12^2 = c^2
25 + 144 = c^2
169 = c^2
now square root both sides to get rid of the square on c
root(169) = root(c^2)
13 = c
What is the value?
I’m confused lolz {}:
Answer:
14
Step-by-step explanation:
1/9(3)^4+5
1/9*81+5
9+5
14 is your answer
Solve for r.
5(r - 10) = -51
Enter the answer in the box.
Answer:
r = -1/5
Step-by-step explanation:
5(r - 10) = -51
Distribute
5r - 50 = -51
Add 50 to each side
5r-50+50 = -51+50
5r = -1
Divide each side by 5
5r/5 = -1/5
r = -1/5
HELP PLEASE!! a space station orbits earth at a rate of 57 miles every 3 seconds
Write the space stations rate of change
Answer:
i think its every 90 minutes but I could be wrong.
Step-by-step explanation:
please help will mark brainliest
question 9
9. Given ABCD
EFGH, find the length of GH.
A. 8
B. 7
C. 5
D. 10
Please help I'm doing homework and its due at 1:00!
A company is testing a new protein shake which they claim works better than their existing brand in improving an athlete's performance. The company selected 60 athletes from a training camp database, and divided them into three groups. The ages for the groups were 16 to 20 years, 21 to 25 years, and 26 to 30 years. In each group, half of the subjects were asked to use the new protein shake for a month, and the other half were asked to use the company's existing brand for a month. The subjects were not informed about which protein shake they would be using. Which statements about this study are true? The study uses blocking to reduce variability from known factors. The study does not use a control group. The study uses random sampling. The study uses blocking on the basis of gender. The study uses a repeated measure design to reduce variability from unknown factors.
Answer:
The study uses random sampling
The study uses blocking to reduce variability from known factors
Step-by-step explanation:
Correct on Plato/Edmentum
Study uses blocking to reduce variability from know factor
and The study uses random sampling are the true statements
What is random sampling?Random sampling is a part of the sampling technique in which each sample has an equal probability of being chosen
Here study uses blocking to reduce variability from know factor
The study uses random sampling
Hence, study uses blocking to reduce variability from know factor
and The study uses random sampling are the true statements
Learn more about Random sampling here
https://brainly.com/question/17238189
#SPJ2
Im really struggling with this, i need A on this test please help me!
Question 4 options:
The volume of the square pyramid is ___ cubic centimeters.
The volume of the square pyramid is 600cm^3
please help. solve for x. (i’ll give brainles if you help with all!
Answer:
Step-by-step explanation:
If I give you this helpful way to remember , can you solve these?
Use SOH CAH TOA to recall how the trig functions fit on a triangle
SOH: Sin(Ф)= Opp / Hyp
CAH: Cos(Ф)= Adj / Hyp
TOA: Tan(Ф) = Opp / Adj
or no?
Help please
Thanks <3
Answer:
answer in the screen shot provided
i need help asap RIGHT ANSWERS ONLY PLEASE !!!!!!’n
Answer:
hey, the answer is 9π m²
Solve this system of equations by using the elimination method. 2x - 2y = 2. 5x + 2y = 12 (2, [?])
Answer:
(2,12)
Step-by-step explanation:
mathpapa
Answer:
(2,1)
Step-by-step explanation:
HELP
Frank is making lemonade. He uses 12 lemons he brought from home and 10 lemons he asked Heidi to bring. He bought 5 bags
of lemons from the grocery store. Each bag holds the same number of lemons and he uses all of these. He uses 72 lemons
altogether. Which equation models the number of lemons, there are in each bag?
A 12 + 10 + 5 = 72.c
B 12x + 10x + 5 = 72x
C 12 + 10 + 5x = 72
D 12x + 10x + 5x = 72
Find the value of each variable 17/ 18
Answer:
A) B.R(-9)?
Step-by-step explanation:
Answer:
17 - 42
18 - 50
Step-by-step explanation:
17)
You know the total measurement of both angles is 180.
So your formula is (2x+54) + x = 180. Now rearrange to get
180 - (2x+54) = x or 180-2x+54 =x
Simply to -2x+126 = x followed by moving x and moving 126 to get
-3x = -126 , now divide both sides by -3
18)
Your complete circle is 360 and you know one angle is 90.
Set your formula to 360=90+(3x)+(x-20)+(2x-10)
Rewrite to 360 = 90+3x+x-20+2x-10 and combine like terms
360 = 90 - 20 - 10 + 3x + x+2x
360 = 60 + 6x
360 - 60 = 6x
300 = 6x
300/6 = x
50 = x
The graph shows the function y = 3x - 1. What are the coordinates of the intercepts?
Answer:
Answer down bellow!
Step-by-step explanation:
y-intercept:(0,-1)
Also, the slope is 3!
How big is a piece of A4 paper?
Answer:
210 x 297 mm
Hope that this helps!
A video game rental store charges a $20 membership fee plus $2 for each game rented. Click to show whether each statement is true or false. True False The slope of function 2 is greater than the slope of function 1 and less than the slope of function 3 The slope of function 1 is 4 times the slope of function 3. The y-intercept of function 2 is less than the y-intercept of functions 1 and 3. The y-intercept of function 2 is greater than the y-intercept of function 3.
Answer:
the member ship gay
Step-by-step explanation:
m8 m88m8m88m8m88m
What is the distance between (-2,-8)(7,-3)
Answer:
[tex]\sqrt{106}[/tex] or 10.29563
Step-by-step explanation:
Use the distance formula to determine the distance between the two points.
[tex]d = \sqrt{(x_{2} -x_{1})^{2} + (y_{2} - x_{1})^{2} }[/tex]
d = distance
[tex](x_{1}, y_{1})[/tex] = coordinates of the first point
[tex](x_{2}, y_{2})[/tex] = coordinates of the second point
Answer:
[tex]\displaystyle d = \sqrt{106}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Coordinates (x, y)Algebra II
Distance Formula: [tex]\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]Step-by-step explanation:
Step 1: Define
Identify
Point (-2, -8)
Point (7, -3)
Step 2: Find distance d
Simply plug in the 2 coordinates into the distance formula to find distance d
Substitute in points [Distance Formula]: [tex]\displaystyle d = \sqrt{(7--2)^2+(-3--8)^2}[/tex][√Radical] (Parenthesis) Subtract: [tex]\displaystyle d = \sqrt{(9)^2+(5)^2}[/tex][√Radical] Evaluate exponents: [tex]\displaystyle d = \sqrt{81+25}[/tex][√Radical] Add: [tex]\displaystyle d = \sqrt{106}[/tex]Plz help with this I don’t know what to do
Answer:
Just guessing here but would the bottom be 4,8,12,16,20 maybe since it is going by 4 then you do the same for the top since it is going by 3
Step-by-step explanation:
Answers:
Row One: 9, 15Row Two: 8, 16, 20Input the numbers only in each box. So that means you won't type in a comma.
The least common denominator is 12
=======================================================
Explanation:
Your teacher wants you to list the multiples of each denominator.
The multiples of 3 are: 3, 6, 9, 12, 15The multiples of 4 are: 4, 8, 12, 16, 20The values in bold are what will go in the boxes in those first two rows.
The least common denominator is 12 because it is the smallest thing found in common in the two lists above. In other words, 12 is the LCM (least common multiple) of 3 and 4. Note how 3*4 = 12. This works because 3 and 4 do not have any common factors between them other than 1.
The LCD (least common denominator) is the LCM of the denominators. The LCD is useful for when you want to add or subtract fractions. The denominators must be the same for you be able to add or subtract them.
With Company A, you can take a 2.25 hour helicopter ride for $ 270.
With Company B, you can take a 90-minute helicopter ride for $ 180.
Which of the two helicopter companies gives you the best ride for your money?
Answer:
B
Step-by-step explanation:
Help ASAP on a timer ⏱
Answer:
B: 395
Step-by-step explanation:
Answer:400
Step-by-step explanation:
I just need help in this last question plsssss
Answer:
B) 0.8
Step-by-step explanation:
If events are said to be independent, then just multiply the probability of the first event by the second if they are supposed to be happening together.
P (A) * P (B) = 0.8 x 1 = 0.8
HElP NEED ANSWER FAST WILL GIVE BRAIN
Answer:
c
Step-by-step explanation:
A cake weighs 215 g and is shared equally between five people. What weight of cake does each person receive?
Answer: 43 g
Step-by-step explanation: For 215 to be divided equally between five people the equation should be set up as 215/5, which equals 43 g for each person.
Help, I don’t know how to do this. Can someone please give me the answer
Answer:
x=45°
Hope this helps
...............................
Please help I will give brainliest to the first correct answer!!!
PLS ILL MARK BRAINLIEST (100 points)
Answer:
For part A:
9x² - 36x + 36 = 0
9(x² - 4x + 4) = 0
9(x-2)(x-2) = 0
Radicand = Discriminant = 36² - 4(9)(36) = 0
there is 1 real zero that repeats itself)
zero is x=2.
Use factoring. Factors of 7 are 1 and 7
2x²-9x+7 = 0
(2x-7)(x-1) = 0
2x-7 = 0 (x-1)=0
2x = 7x=1
x = 7/2
Your solutions are x = 1 and x = 7/2
Step-by-step explanation: