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Related Questions
I need help I never got taught how to do this
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Answer:
736cm²
Step-by-step explanation:
The surface area of a regular pyramid is equal to:
area of the square base + 1/2ps
where p is the perimeter of the base and
s is the height of the slant line of the pyramid.
In your drawing s = 15cm and the base has four equal lengths of 16cm
So first find the area of the base. Since this is a square, the area is just the
length x the width or 16cm x 16cm = 256cm²
(p) is the perimeter of the base. Find this by adding all four side of the bottom square together which is 16cm + 16cm + 16cm + 16cm or 4 x 16cm which is 64cm.
You already were given (s) which is the height of the slanted side from the base to the pointed top. The drawing gives you this as 15cm.
So plugging all this into the formula, you get:
Surface Area = Area of Base + 1/2 p s
= 256 cm² + [1/2 ( 64cm )(15cm)]
= 256 cm² + {1/2 ( 960 cm²)]
= 256 cm² + 480 cm²
= 736 cm²
need help 15.3+7.2 it is adding
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Answer: below
Step-by-step explanation: 22.5
2[(3x + 5) – 7] = 3(4x – 3)
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Answer:
5 / 6
Step-by-step explanation:
2 [ ( 3x + 5 ) - 7 ] = 3 ( 4x - 3 )
2 [ ( 3x + 5 - 7 ] = 3 ( 4x - 3 )
2 [ 3x - 2 ] = 3 ( 4x - 3 )
6x - 4 = 12x - 9
12x - 9 = 6x - 4
12x - 6x = - 4 + 9
6x = 5
x = 5 / 6
Answer:
Isolate the variable by dividing each side by factors that don't contain the variable.
Step-by-step explanation:
Exact Form:
x=5/6
Decimal Form:
x=0.8¯3
-
Find the zeros of the following function f (x) = 2x^2 – x – 10
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Step-by-step explanation:
the formula to find the x values to deliver y=0 results of a squared equation is
x = (-b ± sqrt(b² - 4ac))/(2a)
a, b, c are the constant factors in the 3 terms of a squared equation.
here in our example of 2x² - x - 10
a = 2
b = -1
c = -10
x = (1 ± sqrt(1² - 4×2×-10))/(2×2) =
= (1 ± sqrt(1 + 80))/4 = (1 ± sqrt(81))/4 =
= (1 ± 9)/4
x1 = (1 + 9)/4 = 10/4 = 2 2/4 = 2 1/2 = 2.5
x2 = (1 - 9)/4 = -8/4 = -2
Thomas, a waiter at a local restaurant, is paid $ 4 an hour plus tips. His friend Marie works at a local bookstore for $12 an hour. Marie and Thomas worked the same number of hours. If Thomas made $120 in tips and both made the same amount of money, how many hours
Please just write the equation out.
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Let x be the tips
Let t be Thomas
Let m be Marie’s pay
t=4h+x
(plug in 120 for x)
t=4h+120
——————————————
m=12h
(They made same amount of money working the same amount of hours)
4h+120=12h
120=8h
How many hours did they both work? :)
Suppose that G(x) = F(x) + 6. Which statement best compares the graph of
G(x) with the graph of F(x)?
O A. The graph of G(x) is the graph of Fx) shifted 6 units to the right.
O B. The graph of G(X) is the graph of F(x) shifted 6 units up.
O C. The graph of G(x) is the graph of F(X) shifted 6 units down.
O D. The graph of G(x) is the graph of Fx) shifted 6 units to the left.
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9514 1404 393
Answer:
B. (the correct choice is marked)
Step-by-step explanation:
The value of the function for a given x is the vertical position of the point on the graph. Adding 6 to the function value shifts the graph up 6 units.
The graph of G(x) is the graph of F(x) shifted 6 units up.
Alyssa purchased 3 pounds of peanuts for $8.25. Write an equation that shows the relationship between the cost and the number of pounds purchased
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Answer:$8.25 ÷ 3= x or 3·x =8.25
Step-by-step explanation:
3*x=8.25
someone help me pls
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Answer:
y=1/2x + 3
Step-by-step explanation:
The first thing you need to know is that the slope of a perpendicular line is the opposite reciprocal of the other slope. Find the slope of this line, which is -2. The opposite reciprocal is 1/2. So, you know that the perpendicular line is equal to y=1/2x. Plug the x coordinate (4) in for x to have: y=1/2(4). Multiply 4 by 1/2 to get y=2. Since the y coordinate is supposed to equal 5, add 3 to y=2 to get 5. Since 3 is the amount we added, thats where the y intercept will be. Hope this helped!
How would you write about 100 meters
in 10 seconds as a unit rate?
Remember, unit rate is when the
denominator is 1, so you need to
reduce.
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Answer:
10m/s
Step-by-step explanation:
unit rate just means how many meters you go in 1 second. that's why the denominator is only 1.
100metters/10 seconds
10meters/sec
a bakery worker ordered 3,000 eggs when only 300 eggs were needed. Which explains how many more eggs were ordered than were needed?
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Answer:
2700 more eggs were ordered
Please answer as soon as possible HURRY! Please I need help
2. Write a Linear equation for the function represented by the table
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Step-by-step explanation:
I will help you if you follow me please if you really want to get answer please follow me
PLEASE HELP ITS MATH THANK YOUUUU
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Answer:
99000 millimeters kdknwjdhdiqkwpshd
ANSWER QUICK PLEASE!
Which of the following is NOT an expression?
A. 3x + 4 = 7
B. 6 - i/5
C. x + 8
D. 2x - 3
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Answer:
A. 3x + 4 = 7
Step-by-step explanation:
Expressions do not have an equal sign.
Hopefully this helps!
Brainliest please?
In 2019, the minimum wage in Arizona is $11 per hour. The total cost of renting a one-bedroom apartment in one city is $1410 per month. Without considering any other living expenses or deductions, could a person working 40 hours a week at the minimum wage cover the $1410 per month?
1.Yes, they have $495.20 more than they need.
2.No, the total earned is $495.20.
3.Yes, they have $1905.20 more than they need.
4.No, $1905.20 is not enough.
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Answer:
1
Step-by-step explanation:
40 x 11 = 440
440 x 4 = 1760
27 equals 2 less than a number
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Answer:
23
Step-by-step explanation:
Polynomials
Multiply (2x - 3)(7x – 4)
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Answer:
(2x-3)(7x-4)
2x(7x-4)-3(7x-4)
14x²-8x+21+12
14x²-8x+33
Answer:
14 x square - 29x + 12
Step-by-step explanation:
(2x - 3)(7x – 4)
14x squared - 8x- 21x + 12
14 x square - 29x + 12
PLEASE HELP ASAP please please
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Answer:
whats the question ❓friend maybe I'll be able to help
4 - (y - 3) = 3(y + 1) - 4(1 - y)
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Answer:
The value of y is 1
Step-by-step explanation:
4 - (y - 3) = 3(y + 1) - 4(1 - y)
4 - y + 3 = 3y + 3 - 4 + 4y
7 - y = 7y - 1
7 + 1 = 7y + y
8y = 8
y = 1
Thus, The value of y is 1
-TheUnknownScientist 72
Witch of the following expressions are equivalent to 6+(-4)-5 A -(-6+4)-5 B 6-4-(-5) C 6-(4+5) D 6+4-5 E -(-6)+(-4)-(-5)
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Answer:
c is your answer
Step-by-step explanation:
have a nice day!
10) A community college student interviews everyone in a particular statistics class to
determine the percentage of students that own a car.
A) convenience B) random
C) cluster
D) systematic
E) stratified
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I need help ASAP!!!!!!!
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Answer:
left side 7 right side 9
Step-by-step explanation:
it wont just let me tell you the answer
Evaluate a1 (r)^n-1 for a1 = 2, r= 3, and n = 4.
A. 216
B. 18
C. 32
D. 54
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Answer:
[tex]54[/tex]
Answer D is correct
Step-by-step explanation:
[tex]a_1 \: {r}^{n - 1} \\ 2 \times {3}^{4 - 1} \\ 2 \times {3}^{3} \\ 2 \times 3 \times 3 \times 3 \\ 2 \times 9 \times 3 \\ 2 \times 27 \\ = 54[/tex]
Hope this helps you.
Let me know if you have any other questions :-)
0.5x+2 is it a linear function? yes or no
pls help
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Answer:
yes
Step-by-step explanation:
when graphed it is a non vertical line.
translate the 3 triangles below 4 units right and 3 units down
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Answer:
If we translated the triangle 4 units right and 3 units down, then our new points would be J' (3,0) K' (3,-2) L' (0,-2). Hope this helped ..
Step-by-step explanation:
The sum of two numbers is 45. The difference of the 2 numbers is 3. What is the product?
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Answer:
Setting up problems like this requires a "system of equations." We'll call the two numbers "A" and "B." Make an equation out of the first sentence. "Sum" means the answer to an addition problem.
A + B = 45
After that, make an equation out of the second sentence. "Difference" means subtraction.
A - B = 3
There are two ways to solve this problem. The two ways are called "elimination" and "substitution." I don't know which way you usually do it, but for this case, elimination is more efficient, so I'll teach you how to do that. Look how "B" is positive in the first equation, but negative in the second equation. If these two equations get added together, the B-terms will cancel.
A + B = 45
A - B = 3
-------------
2A = 48
A = 24
Perfect, we got one of the numbers, which is 24. Plug in A = 24 into any of the equations to find B.
A + B = 45
24 + B = 45
B = 21
This means that our two magic numbers are 24 and 21. The product of these numbers can be found by multiplying them to get 504 (C). I hope this helps, and good luck with the rest of your math class!
Step-by-step explanation:
please mark me as brainlest
On Monday, 405 Students went on a trip to the zoo. All 9 uses were filled and 9 students had to travel in cars. How many students were in each bus?
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So since 9 went by car I did 405-9= 396 that went by bus.
There were 9 buses so I did 396/9=44 so there were 44 students on each bus.
Hope this helps !
Answer:
Step-by-step explanation:
n = 41
There are 41 students on each bus.
Yadmine scored 104 points for attempting all 40m questions. If she was awarded 5 points for every correct answer and had 3 points deducted for every incorrect answer, how many questions did Yasmin answer incorrectly?
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Using a system of linear equation to represent the problem given, there are 12 incorrect answers given
Points per correct score = 5 Points deducted per incorrect score = 3 Number kd questions answered = 40Let :
Number of correct answers = cWe could create an equation thus:
5(c) - 3(40 - c) = 104
Expand
5c - 120 + 3c = 104
8c = 104 + 120
8c = 224
c = (224 ÷ 8)
c = 28
Number of incorrect answers = 40 - 28 = 12
Therefore, there are 12 incorrect answers
Learn more : https://brainly.com/question/18112348
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Step-by-step explanation:
→ (1.2*(10^57)) + 1.2*(10^56) → 1.32e+57→ 1.32 × 10^57 1.(drag) → 1.32 and 2. (drag) → 57» 1.32e+57
find the value of a cube + b cube when a+b = 5 and ab = 3
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As we know :
[tex] \boxed{ \boxed{ {(a + b)}^{3} = {a}^{3} + {b}^{3} + 3ab(a + b) }}[/tex]now let's plug the value of given terms :
(5)³ = a³ + b³ + (3×3)(5)125 = a³ + b³ + 45a³ + b³ = 125 - 45 a³ + b³ = 80Answer:
babawi lang sana
Step-by-step explanation:
naul pi
2x=18−2 Value of x???
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Answer:
x = 8
Step-by-step explanation:
2x = 18 - 2 , that is
2x = 16 ( divide both sides by 2 )
x = 8
Answer:
[tex]\sf\longmapsto \: x = 8[/tex]
Step-by-step explanation:
[tex]\sf\longmapsto \: 2x = 18 - 2[/tex]
[tex]\sf\longmapsto \: 2x = 16[/tex]
[tex]\sf\longmapsto \: x = \frac{16}{2} [/tex]
[tex]\sf\longmapsto \: x = 8[/tex]
