An alloy consists of 13 parts of copper to 7 parts of zinc and 5 parts of Nickel what is the percentage composition of the alloy
Answer:
52% Copper, 28% Zinc, 20% Nickel
Step-by-step explanation:
Copper is 13 out of 13+7+5 = 25
13/25 = 52%
Zinc is 7 out of 25 so 28%
Nickel is 5/25 = 20%
ANSWER CHOICES LISTED
what transformation to the linear parent function f(x)=x gives the function g(x)= -4x? select ALL that apply
a. Horizontally stretch by a factor of 4
b. Shift 4 units down
c. Vertically stretch by a factor of 4
d. Reflect over the x-axis
Answer:
c, d.
Step-by-step explanation:
c; A vertical stretch by 4 will put the coefficient (in this case 4) in front of your original equation.
d; the negative in front of the whole equation (-4x) will flip the graph across the x-axis.
Please help me
[tex] \sf{with \: explanation \: again}[/tex]
Answer:
50,000 joulesStep-by-step explanation:
total mass of people = 50× 5 = 250kg
height = 20m
force = mass × g = 250× 10 ( taking g= 10m/s²)
f= 2500Nwork done = force × distance
= 2500× 20
= 50000 joulesSelect the correct answer.
Simplify the following expression.
12a3865
9a284c5
OA 4ab2
OB. 9ab2
OC. 4a62c
OD. 9ab2c
I need awnsers people
Answer:
a) x <= 15 b) x > 16.5 c) x < 34.5 d) x =/= 23
Step-by-step explanation:
For a), there is a shaded region for where 15 is, and the number line is going towards the left, so x will be less than but also equal to 15
For b), there is not a shaded region for where 16.5 is, but the number line is going towards the right, so x will be greater than 16.5
For c), there is not a shaded region for where 34.5 is, but the number line is going towards the left, so x will be less than 34.5
For d), there is not a shaded region for where 23 is, but the number line is going everywhere else so it is x =/= 23(x does not equal to 23)
what can be added to 2 to give us -6
Answer:
-8 can be added to 2 to give us -6
Step-by-step explanation:
hopefully this helps :)
Evaluate the expression 2^5
Answer:
32
Step-by-step explanation:
2 x 2 x 2 x 2 x 2
32
hope this helps
Can someone help me solve this please?
Answer:
54.6 units
Step-by-step explanation:
Tangents from an external point to a circle are congruent, then
top tangent = 9.2 × 2 = 18.4
Thus
perimeter = 18.4 + 18.5 + 17.7 = 54.6 units
What is the value of m squared minus 2 m n + n squared for m = negative 2 and n = 4?
Answer:
What is the value of m squared minus 2 m n + n squared for m = negative 2 and n = 4? -36. -4.
Step-by-step explanation:
hope this helps
The distance y in miles traveled by a car is 20 times the number of gallons x of gasoline used by the car. Write and graph a function that describes the relationship between x and y
Answer:
y=20x
Step-by-step explanation:
Help Fast Plzzzzzzzzzzzzz
Answer:
id say 126
Step-by-step explanation:
I just multiplied all of them. but wait till someone answers just go be sure
You bike 4 miles the first day of your training, 4.3 miles the second day, 4,9 miles the third day, and 6.1 miles the fourth day. If
you continue this pattern, how many miles do you bike the seventh day?
Answer:
+3 , +6 , + 12
x2
Step-by-step explanation:
4
4.3
4.9
6.1
Please give me the correct answer.Only answer if you're very good at math.Take your time when answering.
Answer:
your answer will be option B) y=20x+30
Step-by-step explanation:
have a great day
HELP PLEASE !!!!!!!Estimate each number as a single digit times a power of ten.drag expressions to complete the table each expression may be used or not at all
Answer:
1 is 4x10^-9
2 is 4x10^10
3 is 5x10^7
4 is 2x10^-5
Step-by-step explanation:
I also would use calculator soup it's a good website
The numbers as a single digit times a power of ten are ; 1. 4x10^-9, 2. 4x10^10, 3. 5x10^7, 4. 2x10^-5
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division. The Numbers constants, variables, operations, brackets can all be represented by mathematical symbol; which can also be used to indicate the logical syntax's order of operations and other features.
Therefore, each number as a single digit times a power of ten.
1. 0.000000043 is [tex]4 \times 10^{-9}[/tex]
2. 43560000.000 is[tex]4 \times 10^{10}[/tex]
3. 56.234567 is [tex]5 \times 10^7[/tex]
4. 0.00002346 is [tex]2 \times 10^{-5}[/tex]
Hence, The numbers as a single digit times a power of ten are ; 1. 4x10^-9, 2. 4x10^10, 3. 5x10^7, 4. 2x10^-5
To know more about an expression follow;
brainly.com/question/19876186
#SPJ5
Kristin's Bikes rents bikes for $11 plus $2 per hour. Willie paid $23 to rent a bike. For how many hours did he rent the bike?
Define the variable, write an equation, and solve the equation.
Answer:
6
Step-by-step explanation:
Let x = number of hours.
Let y = cost.
The fixed cost is $11.
The cost per hour is $2.
For x hours, the cost per hour is 2x.
y = 2x + 11
23 = 2x + 11
12 = 2x
x = 6
Answer: 6
heeeeelllllllllllllllllllllllllpp
Answer:
if your goal is to get the area of each triangle, the answers are:
14in
25in
48in
Here is the answer but am not so sure
14in
25in
48in
I need help please and thank you
Answer:
yes i don't know that so.....
A frisbee has a diameter of 7.5 inches. What is its area in terms of inches?
A student purchases a car for $12,500. The car loses its value at a rate of 20% per year. After how many years will the car's value fall below $5,000?
a metal box that is in shape of cuboid has the following dimensions. the length is 9 inches, width is 2 inches and height is 1. 5 inches. find the total cost of silver coating the entire box if the cost of coating is $2.50 per Sq. inches
Given:
Length of a box is 9 inches, width is 2 inches and height is 1.5 inches.
The cost of silver coating is $2.50 per sq. inches.
To find:
The total cost of silver coating for the box.
Solution:
The total surface area of a cuboid is
[tex]A=2(lb+bh+hl)[/tex]
Where, l is length, b is breadth and h is height.
Putting [tex]l=9,b=2,h=1.5[/tex], we get
[tex]A=2(9\times 2+2\times 1.5+1.5\times 9)[/tex]
[tex]A=2(18+3+13.5)[/tex]
[tex]A=2(34.5)[/tex]
[tex]A=69[/tex]
So, the total surface area of the box is 69 square inches.
Cost of silver coating is $2.50 per sq. inches. So, the cost of silver coating for the box is
[tex]Cost=69\times 2.50[/tex]
[tex]Cost=172.50[/tex]
Therefore, the cost of silver coating for the box is $172.50.
Find the error & explain why it is wrong:
Laural had to find the average rate of change of f(x) over the interval from x = 6 to x = 10 using the table below.
What did she do wrong?
Step b is wrong. The slope is the change in y over the change in x.
Step b should be (18- 8)/( 10-6)
= 10/4
= 5/2
Donna is putting down tile on her outdoor deck. The shape of her deck is shown below. Each unit on the coordinate plane represents 5 feet. Find the area of flooring needed in square feet.
Round your final answer to the nearest tenth.
The given area presented on the coordinate plane has dimensions
given by the lengths of the line joining the vertices.
Response:
The area of the flooring needed is 13.5 ft²How can the area of the shape be calculated?The given figure can be taken as a composite figure of wo triangles and
a trapezium.
Area of the triangle at the top, A₁ = 0.5 × 4.5 × 1 = 2.25
Area of the trapezoid, A₂ = 0.5 × (6 + 4.5) × 1 = 5.25
Area of the bottom triangle, A₃ = 0.5 × 2 × 6 = 6
Therefore;
Area of the figure, A = A₁ + A₂ + A₃
Which gives;
A = 2.25 + 5.25 + 6 = 13.5
Area of the flooring needed, A = 13.5 ft²
Learn more about composite figures here:
https://brainly.com/question/12114614
HELP PLEASE EASY MATH
Answer:
C
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
y=mx+b, mx being the slope and b being the y-intercept. The answer is C.
A wheel of radius 10 cm is turning at a rate of 5 revolutions Calculate: the distance moved by a point on the rim in 2 seconds
Answer:
15°
Step-by-step explanation:
Angular velocity= 5rev/ min
= 10π/ min
But 1 min= 60 secs
= Angle turned/ 2secs
= 10π/(60×2)
= π/12 × 180/π= 15°
=
HELP PLEASE !!!! SHOW WORK TO ANSWER PLEASE
Answer: ~14°, ~62°
Step-by-step explanation:
See image. You should be able to easily calculate the last two angles.
A supermarket chain sells oranges, apples, peaches, and bananas in three stores located throughout a large metropolita area. The average number of pounds sold per day in each store is summarized in matrix M. “In season” and “out of season" prices, per pound, of each fruit are given in matrix N. What is the total, for the three stores, of “in season" da revenue for the four fruits? The "out of season" peach sales represent what percentage of the daily total "out of seaso revemes for store 3?
A $1877.00; 29. 74%
B $ 2152.50; 19.83%
C $ 2404.50; 64.43%
D $ 2152.50; 29.81%
Answer:
it's b
Step-by-step explanation:
Simplify the expression
-2.3(-4p+1)-0.7
9.2p−3 Is the answer
Hoped I help :)
I need help on this math questions please.
Answer:
(a)
perimeter = 2 + 8 + 4 + 7x + 4x
(b)
perimeter = 11x + 14
What is the equation of the line, in slope-intercept form, that passes through (3, -1) and (-1, 5)?
2 x + 3 y - 7 = 0
2 y = -3 x + 7
Answer:
Here is the answer i hope this helps!?Step-by-step explanation:
(7/5 , 7/5)
Equation Form: x = 7/5, y = 7/5Answer:
2y = -3x + 7
Step-by-step explanation:
(3, -1) and (-1, 5)
Slope:
m=(y2-y1)/(x2-x1)
m=(5+1)/(-1-3)
m=6/(-4)
m= -3/2
Slope-intercept:
y - y1 = m(x - x1)
y + 1 = -3/2(x - 3)
y + 1 = -3/2x + 9/2
y = -3/2x + 7/2
Standard form:
y = -3/2x + 7/2
3x + 2y = 7
2y = -3x + 7
A stainless steel patio heater is a square pyramid. The length of one side of the base is 89.6 The slant height of the pyramid is What is the height of the pyramid?
Answer:
9.48
Step-by-step explanation:
Complete question
A stainless steel patio heater is a square pyramid. The length of one side of the base is 89.6 The slant height of the pyramid 90.1. What is the height of the pyramid?
To get the height of the pyramid, we will use pythagoras theorem.
slant height l is the hypotenuse
length of the base is the adjacent
height of the pyramid is the opposite
According to the theorem;
l² = h² + b²
90.1² = h² + 89.6²
8,118.01 = h²+8,028.16
h²= 8,118.01 - 8,028.16
h² = 89.85
h =√89.85
h = 9.48
Hence the height of the pyramid will be 9.48
Note that the value of the slant height was assumed to solve the problem.