Answer:
true
Step-by-step explanation:
volume of a pyramid us 1/3 base×height and the area of the base is the same as the cylinder so it is 1/3 of the cylinder
HELLO CAN SOMEONE HELP ME! MATH :) NO FAKE ANSWERS PLS :D
Answer:
60 cm²Step-by-step explanation:
The area is:
A = 12*6 - 3*4 = 60 cm²Answer:
[tex]60cm {}^{2} [/tex]
HELP
Which Trig ratio should be used to find the missing side?
A.Sin
B.Cos
C.Tan
Answer:
It's Tan.
Multiple Thumbs-up ^_^
What is the area of the obtuse triangle given below?
Answer: D. 104.5
Step-by-step explanation:
I’d say the answer is D. 104.5 sq units but I’m not very sure because for a triangle it’s area is 1/2*b*h. I did that and I got 104.5 but the thing is, is that there is a part you need to subtract which is what I can’t figure out. I tried doing the area for the little triangle and then subtractinto it from the total but I got an answer that wasn’t an option.
Mandy works part-time to earn money for a trip. The amount she saves after working x hours is given by the equation y=7.5x+40. How much does Mandy earn per hour?
[tex]y = 7.5x + 40 \\ y = 7.5(1) + 40 \\ y = 7.5 + 40 \\ y = 47.5[/tex]
[tex]mandy \: earns \: 47.5 \: per \: hour[/tex]
12 divided by 1 1/5 plz hurry asap
Answer:
10
Step-by-step explanation:
Answer:
10 :)
Step-by-step explanation:
12 divided by 1 1/5 is the same as:
It is always easier to convert the fraction into a decimal:
like we converted 1/5 into .20.
[tex]\frac{12}{1.2}[/tex]=10
A question you can ask yourself is:
How many times can you multiply 1.2 to get 12?
1.2*10=12.
Hope it helps! :))
Evaluate the following expression when n = -2.
8|n + 5|
9514 1404 393
Answer:
24
Step-by-step explanation:
Put the value where the variable is and do the arithmetic.
8|-2+5| = 8|3| = 24
The absolute value of a positive number is that same positive number.
HELLO SOMEONE HELP ME WITH THIS MATH QUESTION PLZ TY! :D
ASAP PLEASE HELP FAST if you can do any of them please do
Answer:
Number 7: D. 378 ft
And I'm Not Sure About The Others
Step-by-step explanation:
Answer:
question 8 : 157 m²
Step-by-step explanation:
cone volume:. π×r²×h/3
3,14×25×6/3 = 157 m²
Sally is planning the school picnic and needs to decide what food vendor to
use. She asks 800 students whether they would rather have a taco truck or a
fruit smoothie cart. The results of the survey are shown in the table.
What is the relative frequency of eighth-graders who want fruit smoothies
Answer:
c
Step-by-step explanation:
Answer: B
Step-by-step explanation:
I REALLY NEED HELP , “ a company is designing a new cylindrical water bottle. the volume of the bottle will be 207 cm *to the 3rd power* the height of the water bottle is 8.4 cm. what is the radius of the water bottle?”
Answer:
Radius, r = 2.80 cm
Step-by-step explanation:
Given the following data;
Volume of cylinder = 207 cm³
Height = 8.4 cm
Pie, π = 3.14
To find the radius of the water bottle;
Mathematically, the volume of a cylinder is given by the formula;
V = πr²h
Where;
V is the volume of a cylinder.
r represents the radius of the cylinder.
h represents the height of the cylinder.
Substituting into the formula, we have;
207 = 3.14 * r² * 8.4
207 = 26.376r²
r² = 207/26.376
r² = 7.85
r = √7.85
Radius, r = 2.80 cm
Would the value of
{2 + ((15 – 3) - 61) = 2
change if the braces were
removed? Explain.
Answer:
{2+[(15-3)-61]}= -47
Yes, the value would change because if it did you would use the method PEMDAS but if there were brackets you would do the process in the order of the brackets
Step-by-step explanation:
What is the length of EF ?
A. 8 pi
B. 4 pi
C. 2 pi
D. Pi
The arc length EF of the circle is 2π. Therefore, option C is the correct answer.
What is arc length of a circle?The arc length is defined as the interspace between the two points along a section of a curve. An arc of a circle is any part of the circumference.
The formula to find the arc length of a circle is θ/360° ×2πr.
Given that, ∠EDF=π/2= 90° and radius of a circle = 4 units.
Here, arc length = θ/360° ×2π×4
= 90°/360° ×2π×4
= 1/4 ×2π×4
= 2π
Therefore, option C is the correct answer.
Learn more about the arc length here:
https://brainly.com/question/16403495.
#SPJ2
Samir bought 3 pounds of cement to repair the cracks in his sidewalk.
Each crack needs to be filled with 2 ounces of cement.
Answer:
The answer is 24 cracks will be filled
Step-by-step explanation:
hope it helps :3
16 ounces in a pound. convert pounds to ounces
calculate the amount of cement we have. That would be 3 x 16 = 48 ounces of cement.
The amount of cracks to be filled : 48 /2 = 24 cracks
if a is negative, the function is _____ across the axis.
Answer:
y-values positive
Step-by-step explanation:
A magazine provided results from a poll of adults who were asked to identify their favorite pie. Among the respondents, % chose chocolate pie, and the margin of error was given as percentage points. Describe what is meant by the statement that "the margin of error was given as percentage points."
Answer:
Margin of Error concept & example
Step-by-step explanation:
Margin of Error refers to range of values around sample statistic, within confidence interval. It denotes, expected percentage points of difference from real population value.
Example : With 95% Confidence Interval with (lets say 4) percent Margin of Error implies that - statistic is expected to be within 4% deviation around population mean 95% of the time.
It applies to pie case also. People liking chocolate pie are likely to be within ME% around sample percentage, with probability of CI% .
Can anyone help? I’ll give Brainly! Thank you :)
==============================================================
Explanation:
f(x) is equal to both x^2-2x+3 and also -6x at the same time. Set those two expressions equal to one another and solve for x.
x^2-2x+3 = -6x
x^2-2x+3+6x = 0
x^2+4x+3 = 0
(x+3)(x+1) = 0 .... see note below
x+3 = 0 or x+1 = 0
x = -3 or x = -1
Note: 3 and 1 multiply to 3, and also add to 4.
---------------------
Once we get the x values, we plug them into either equation to find the y value.
So if x = -3, then
f(x) = x^2-2x+3
f(-3) = (-3)^2-2(-3)+3
f(-3) = 9 + 6 + 3
f(-3) = 18
or we could say
f(x) = -6x
f(-3) = -6(-3)
f(-3) = 18
Both versions produce the same output when x = -3.
The second version is easier to work with.
Since x = -3 leads to y = 18, we know that (-3, 18) is one of the solutions. That explains where your teacher got (-3, 18) from.
-----------
We'll use this idea for x = -1 now
f(x) = x^2-2x+3
f(-1) = (-1)^2-2(-1)+3
f(-1) = 1 + 2 + 3
f(-1) = 6
or we could say
f(x) = -6x
f(-1) = -6(-1)
f(-1) = 6
Like before, both versions of f(x) produce the same output when the input is x = -1.
The other solution is (-1, 6)
Can someone help me with this plzzz
Answer:
D
Step-by-step explanation:
i will give Brainiest if you are right
Answer:
i think the answer is C
Solve the compound inequality.
7x>-35 and -5x ≥ -50
A. -5< x≤10
B. -5≤x≤10
C. 5≤x≤10
D. 5>x≤10
need help
Answer:
A. -5< x≤10
Step-by-step explanation:
7x>-35 and -5x ≥ -50
7x>-35
x>-5
-5x ≥ -50
x≤ 10
so, the result is:
-5< x ≤10
Question 2
Find the distance between (-4, 2) and (-4,-4).
I’ll give all five stars
Answer:
6
Step-by-step explanation:
i am smart
A courier service charges a flat rate of $12.50 per trip plus $0.60 per mile. They charged Films & More $23.30 to deliver a package. ( a. Write the equation for this situation) (b. How many miles did the courier service have to travel? )
Answer:
y = 0.6x + 12.5
The courier service had to travel 18 miles
Step-by-step explanation:
Create an equation where y is the cost to deliver a package, and x is the number of miles traveled.
Since the service charges $0.60 per mile, the cost can be represented by $0.60x.
There is a flat rate of $12.50, so this will be added to 0.60x.
Then, set this equal to y. Using this, create an equation:
y = 0.6x + 12.5
Find how many miles the courier service had to travel by plugging in 23.30 as y, and solving for x:
y = 0.6x + 12.5
23.3 = 0.6x + 12.5
10.8 = 0.6x
18 = x
So, the courier service had to travel 18 miles.
What is the volume of the cone below? ):
Answer:
A. 112π units³
General Formulas and Concepts:
Symbols
π (pi) ≈ 3.14Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightGeometry
Volume of a Cone Formula: [tex]\displaystyle V = \frac{1}{3} \pi r^2h[/tex]
r is radiush is heightStep-by-step explanation:
Step 1: Define
Radius r = 4
Height h = 21
Step 2: Find Volume
Substitute in variables [Volume of a Cone Formula]: [tex]\displaystyle V = \frac{1}{3} \pi (4)^2(21)[/tex]Evaluate exponents: [tex]\displaystyle V = \frac{1}{3} \pi (16)(21)[/tex]Multiply: [tex]\displaystyle V = \frac{16 \pi}{3}(21)[/tex]Multiply: [tex]\displaystyle V = 16 \pi \cdot 7[/tex]Multiply: [tex]\displaystyle V = 112 \pi[/tex]Which of the following expressions has the greatests value?
Mr. Claussen needs a total of 15 pounds of ground beef to make hamburgers for a company picnic. He finds that 2 pounds of ground beef cost $4.40.At this rate, how
much should Mr. Claussen plan on spending for the 15 pounds of ground
beef?
A $66.00
B. $33.00
C. $19.40
D. $2.20
Answer: your answer should be 33.00/B
Step-by-step explanation:
Because u need to divide 15 by 2 = 7.5
Then Times that my 4.40
U get 33 dollar
Norio, Gayle, and Tonya are playing a card game. They have a stack of red cards, a stack of yellow cards, and a stack of green cards.
On each turn, the player spins a spinner with three equal-sized sections, one red, one yellow, and one green. The spinner tells the player what color cards to draw.
Then, the player rolls a number cube with faces numbered 1–6. The number cube tells the player how many cards to draw. For example, if Tonya spins green and rolls a 4, she draws 4 green cards.
How many possible outcomes result in drawing at least one red card? Explain your answer by describing all such outcomes.
Answer:
6
Step-by-step explanation
Write the absolute value equation that is represented by the graph
Answer:
y = |x + 2| - 5
Step-by-step explanation:
What do I put in 1,2,3,4,5,6 I need help plz timed test
Answer:
The value of x = 6.5 units
Step-by-step explanation:
Given triangle is a right angle triangle;
Length of base = 2.5 unit
Length of perpendicular = 6 unit
Find:
The value of x
Computation:
Using Pythagoras theorem;
Hypotenuse² = Base² + Perpendicular²
Hypotenuse² = 2.5² + 6²
Hypotenuse² = 6.25 + 36
Hypotenuse² = 42.25
Hypotenuse = √42.25
Hypotenuse = 6.5 unit
The value of x = 6.5 units
14x+7y=217
14x+3y=189
Answer:
y = 7
x = 12
Step-by-step explanation:
14x+7y=217, then 14x = 217 - 7y
14x+3y=189, then 14x = 189 - 3y
217 - 7y = 189 - 3y
add 7y to each side of the equation:
4y + 189 = 217
subtract 1890 from each side:
4y = 28
divide both sides by 4:
y = 7
14x + 3(7) = 189
subtract 21 from each side:
14x = 168
divide both sides by 14:
x = 12
Plsss answer this quick question!!
Answer:
D
Step-by-step explanation:
i would say D because in the hall she would still be able to see the people where as if they are on a piece of paper in a box she cant see who will be drawn.
Answer:
B.
Step-by-step explanation:
A. Incorrect because it’s unreasonable.
C. Incorrect because why would a teacher pull 2 students from a completely different class to read?
D. Incorrect because does a teacher do that just to ask 2 students to do something simple?
B. The most reasonable answer that most teachers will do.
mlin
Find the point-slope equation of the line using the point (3, 5) and 3/2 slope
Use the slash key (/) to indicate a fraction.
Answer:
y-5 = 3/2(x-3)
Step-by-step explanation:
The point slope form of the equation of a line is
y-y1 = m(x-x1) where m is the slope and (x1,y1) is a point on the line
y-5 = 3/2(x-3)