Answer:
y=20x+217
Step-by-step explanation:
Can you help me with this one math problem please?
I emailed my teacher for help but she is not responding. No one can help me.
Answer:
240
Step-by-step explanation:
if you mulitiply 6 and 5 to get 30 times 8 you get 240
sorry if wrong
14.4 A Book and a Cake A book costs $45. Sales tax on the book is 7%. Write two different expressions that represent the final cost of the book in dollars. Pne of the expressions should use only a single multiplication and no other operations.
A cake that costs $32 is on sale for 15% off and there are no taxes. Explain why the expression (0.85).32 represents the final price of the cake in dollars
(0.85). 32 represents the final price of the cake in dollars because...
Answer: 1. $45*1.07 | $45(1.07) 2. (0.85)*32 represent the final price of the cake in dollars because (0.85) is the 15% off in decimals.
Step-by-step explanation:
1 if you multiply 45 by 1.07 it will be 48.15 and that's the final cost of the book, same with $45(1.07) is just another way to represent the multiplication.
2 As I said the 0.85 represent the 15% off, and when you multiply it will be less.
Boris rented a truck for one day. There was a base fee of $16.95, and there was an additional charge of 89 cents for each mile driven. Boris had to pay $131.76
when he returned the truck. For how many miles did he drive the truck?
complete the multiplication equation. (4) ( ) =-12
Answer:
-3
Step-by-step explanation:
If we substitute the blank in for x, it will make the problem easier.
(4)(x)=-12Divide each side by 4 to isolate x
x=-12/4Solve, negative 12 divided by four is 3. So:
x=-3i’ll give brainlest!
Answer:
Z = 3
Step-by-step explanation:
if y = 3 then 3 x 2 = 6 subtract that from 9 and u get 3 so therefore z is 3
The drawing below represents a 22-foot ladder with its base placed 10 feet from the bottom of a vertical wall. whatis the best value for x
Answer:
x = 62.96°
Step-by-step explanation:
From the attached figure,
Base, b = 10 ft
Hypotenuse, H = 22 ft
We need to find the value of x. We can use trigonometry to find it.
We know that,
[tex]\cos\theta=\dfrac{B}{H}[/tex]
Putting all the values,
[tex]\cos x=\dfrac{10}{22}\\\\x=62.96^{\circ}[/tex]
So, the value of x is 62.96°.
PLEASE HELP
Find the value of x and y. Write your answer in simplest radical form.
Answer:
Y=10
x=14.14
Step-by-step explanation:
Because the two smaller angles are equal, it is an isosceles triangle with both legs equal in length.
so y=10
By the Pythagorean theorem, x^2=10^2+10^2
x^2=200
x=14.14
Which of the following statements are true about inverse matrices?
All square matrices have inverses.
If A and B are inverse matrices, then A and B must be square matrices.
The determinant of a singular matrix is equal to zero.
If A and B are inverse matrices, then A + B = I.
If A and B are inverse matrices, then det(A)xde(B)=0
Any zero matrix does not have an inverse.
If B = A–1, then A = B–1.
B = A–1, then A = B–1. This statement is true. The inverse of a matrix is unique, so if B is the inverse of A, then A must be the inverse of B.
what is matrix ?An arrangement of integers in both columns and rows is known as a matrix. learns about matrices' components and dimensions and first presents them. A matrix is a rectangular grid with integers arranged in rows and columns.
The statements that are true about inverse matrices are:
Not all square matrices have inverses. A square matrix only has an inverse if its determinant is not equal to zero. If the determinant of a square matrix is zero, it is called a singular matrix and does not have an inverse.
If A and B are inverse matrices, then A and B must be square matrices. This is because only square matrices can have inverses.
The determinant of a singular matrix is equal to zero. This is because the determinant of a matrix is related to the linear independence of its columns or rows. A singular matrix has linearly dependent columns or rows, which means its determinant is zero.
If A and B are inverse matrices, then A + B = I. This is not necessarily true. In general, the sum of two inverse matrices is not necessarily the identity matrix.
If A and B are inverse matrices, then det(A) x det(B) = 1. This statement is almost true, but the correct statement is det(A) x det(B) = det(AB) = 1.
Any zero matrix does not have an inverse. This is because the determinant of a zero matrix is zero, and therefore it is singular and does not have an inverse.
If B = A–1, then A = B–1. This statement is true. The inverse of a matrix is unique, so if B is the inverse of A, then A must be the inverse of B.
To know more about matrix visit:
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Answer: B,C,E,F,G
Step-by-step explanation:
When ringing up a customer, a cashier needs 30 seconds to process payment as well as 3 seconds to scan each item being purchased. How long does it take to ring up a customer with 24 items? Write and solve an equation to find the answer.
A'B'C', which statements must be true? Select three options
Answer:
They are all true
Step-by-step explanation:
A seems right. But so does B. Infact C also seems rights so they are all correct
I have a graph the line problem that I don't know how to do It says I have to graph at least three points y=-1/4x+3
Answer:
Hope this helps!!
Step-by-step explanation:
In which choice is y not a linear function of x?
PLEASE HELP IM CONFUSED
Someone plz help me I will give brainliest
Answer:
275 non spectators
Step-by-step explanation:
1. Subtract
42,500 - 31,750 - 10,475 =
275
2. Get answer
275 non-spectators
77 is 56% of what number Show your work for brainliest
can someone explain this to me? PLEASE HELP FAST!!
Answer:
49.298
Step-by-step explanation:
Radio × π²
5×3.14²
5×9.8596
49.298
Write an expression for "h less than 13"
Answer:
13-h is h less than 13. this is how you answer this.
Hey there!
Sometimes “less than” means “>” ( a number smaller than the number that’s being compared to) or “subtraction”
So, therefore your answer should be
[h < 13] or [h - 13]
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
If f(x)= -2x+3 , find f(-1)?
Before we solve the equation let's take a look at it.
f(x) = -2x + 3
See how x appears in both f(x) and as the variable in the second half of the equation?
f(x) means "The function of x." You might also see g(x), h(x), and while those are the most common it can really be any letter, and any variable inside the parentheses.
So when we see f(-1), that means "The function of -1" or "The function of x when it is equal to -1."
Catching on? We need to replace x with -1 to solve for f(-1).
So here we go:
f(x) = -2x + 3
f(-1) = -2(-1) + 3
f(-1) = 2 + 3
f(-1) = 5
Voilà! We have solved for f(-1). Hope this helped.
Winner-brainliest
Tell me the answer in rows
Pasta 1.
2 and so on
Answer:
Pizza 5 4 9
Pasta 1 5 6
Salad 3 2 5
Total 9 11 20
PLEASE HELP 15 POINTS
An item costs $420 before tax, and the sales tax is $16.80 .
Find the sales tax rate. Write your answer as a percentage.
Answer:
The sales tax is 4%
Step-by-step explanation:
hope this helps plz mark brainliest
At the rate shown in the table, how many weeks did it take to sell 700 books? [Type your answer as a number.]
Answer:
10 weeks! hope this helped! :)
Step-by-step explanation:
70 x 10 = 700
Given m∥n the value of x. (8x-20) (8x+8)
You drop a ball from a height of 98 feet. At the same time, your friend throws a ball upward. The polynomials represent the heights (in feet) of the balls after t seconds. At what time do the balls reach the same height?
Answer: The polynomial is 92 - 46t
92,92,-46,46
Step-by-step explanation:
The polynomial represent the heights (in feet) of the balls after t seconds is : -46t+92
What is a polynomial?They are mathematical expressions involving variables raised with non negative integers and coefficients(constants who are in multiplication with those variables) and constants with only operations of addition, subtraction, multiplication and non negative exponentiation of variables involved.
The motion of both balls is a free-fall motion which means that the ball is acted upon the force of gravity only.
Therefore, the motion of the ball is a uniformly accelerated motion, with constant acceleration equal to the acceleration of gravity:
g = 32 ft / sec sq.
The ball which is thrown upward from the ground instead is fired with an initial vertical velocity , and its starting height is zero, so its position at time t is given as;
h(t) = ut - 1/2 gt²
Therefore, the polynomial that represents the distance between the two balls is -46t+92
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A machine can make 14,400 screws in 8 hours. A second machine can make twice as many screws. What is the constant of proportionality (k) between the number of screws (y) and the number of hours (x) for the second machine?
Answer:
1800 screws per hour
Step-by-step explanation:
How long will it take to fill the tank with 40 gallons of water?
Answer:
15-25
Step-by-step explanation:
As a estimation we are told £3 is €4. Convert £25.50 to euros €
Answer:
£34
Step-by-step explanation:
→ Find how euros is in a pound
£3 = €4
£1 = €1.33
→ Multiply the euro by 25.50
1.33333 × 25.50 = £34
Answer:
€34
Step-by-step explanation:
First you'll want to find out how much £1 is.
Since we know £3 is equal to €4 we can:
divide £3 by 3 = £1divide €4 by 3 = €1.33So, £1 = €1.33
With this in mind, we can find out what £25.50 is:
£1 x 25.50 = £25.50€1.33 x 25.50 = €34Therefore, £25.50 = €34
What's 4.2,-3/5,220%,-4'5 in greatest to least order?
Answer:
4.2,220%,-3/5,-4'5
Step-by-step explanation:
What is 9% of 50? Pls.
Answer:
4.5
Step-by-step explanation:
Consider the complex number z shown in the graph.
Adding –2i to z results in a shift
.
The resulting number is
–
i.
Answer:
Down
3
2
Step-by-step explanation: on edge trust me.
Answer:
Adding –2i to z results in a shift ✔ down . The resulting number is ✔ 3 – ✔ 2 i.
Step-by-step explanation:
just did it on edge :)
good luck
please mark me brainliest!!
Help me there is brainliest insured
Answer:
33
Step-by-step explanation:
44 - 25% off is 33
NEED HELPP CORRECTT ANSWERS AND WILL GIVE THANKS AND MARK BRAINLIST ONLY FOR CORRECT ANSWER
Answer:
(16,60)
Step-by-step explanation: