Answer:
4,500 mg
Step-by-step explanation:
198x1x50=9900
1x2.2x1=2.2
9900/2.2=4,500
Selena bought a TV for her bedroom. The original price was $299.99, but she bought it on sale for 30% off. Selena also paid 15% tax. How much money did she spend on the TV?
find the range of f(x) = -2x+6 for the domain {-1,3,7,9} HELLPPP!
Answer:
Range: {-12, -8, 0, 8}
Step-by-step explanation:
To find the range of [tex] f(x) = -2x + 6 [/tex], plug in the value of each domain into the equation of the function to get the corresponding range value.
Given that the domain is {-1,3,7,9}, therefore:
✅[tex] f(-1) = -2(-1) + 6 = 2 + 6 [/tex]
[tex] f(-1) = 8 [/tex]
✅[tex] f(3) = -2(3) + 6 = -6 + 6 [/tex]
[tex] f(3) = 0 [/tex]
✅[tex] f(7) = -2(7) + 6 = -14 + 6 [/tex]
[tex] f(7) = -8 [/tex]
✅[tex] f(9) = -2(9) + 6 = -18 + 6 [/tex]
[tex] f(9) = -12 [/tex]
Range would be: {-12, -8, 0, 8}
what are the solutions to x^2=16x-28
Answer:
x=14
Step-by-step explanation:
Answer:
x=14
Step-by-step explanation:
Step-1 :
Multiply the coefficient of the first term by the constant 1 • 28 = 28
Step-2 :Find two factors of 28 whose sum equals the coefficient of the middle term, which is -16 .
-28 + -1 = -29
-14 + -2 = -16
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -14 and -2
x2 - 14x - 2x - 28
Step-4 : Add up the first 2 terms, pulling out like factors :
x • (x-14)
Add up the last 2 terms, pulling out common factors :
2 • (x-14)
Step-5 : Add up the four terms of step 4 :
(x-2) • (x-14)
Answer:
x=14
What is the approximate area of the triangle below?
Answer:
3
Step-by-step explanation:
1+1=2
I know the sum of positive and negative numbers will be positive when
I know the sum of positive and negative numbers will be negative when
ANSWER BOTH QUICK
Answer:
When the positive number is greater than the negative number
Step-by-step explanation:
-6 + 7 =1 because -6 + 6 + 0 then you add 1.
Answer:
1. there are to negatives or two positives
2. there is one positive and one negative
Gianna and Victor both think they are the fastest texter! Gianna types 168 words in
4 minutes. Victor types 246 words in 6 minutes. Who is the REAL "fastest texter?"
Please help me
Answer:
Gianna is the faster texter. She types 42 wpm, while Victor types 41 wpm.
Step-by-step explanation:
Calculate the unit rates. Time is usually on the bottom. For example, to calculate how many words Gianna types in a minute, use the expression 168/4.
Answer:
Gianna is the faster texter
Step-by-step explanation:
168/4 = 42 wpm for Gianna
246/6 = 41 wpm for Victor
At a birthday party pizzas and sodas were purchased for the kids. The number of sodas bought was two more than three times the number of pizzas. Pizzas cost $9.50 each and sodas cost $1.25 each.
Answer:
30.5
Step-by-step explanation:
hope that helps
Answer: 5 pizzas and 17 sodas were bought
Step-by-step explanation:
I don't have answers for a or b but I have them for c.
Number of pizzas
9.50n+1.25(3n+2)=68.75
9.50+3.75n+2.50=68.75
combine like terms
13.25+2.5= 68.75
subtract from both sides
13.25=68.75-2.5
13.35=66.25
Divide
n=5
Number of sodas
3n+2=3(5)+2=15+2=17
Lock #1 Answer the question below to UNLOCK the next room. (TYPE THE WORD: ALL
CAPS)
LOCK #1
Answer the question below to UNLOCK the
next room. (TYPE THE WORD; ALL
CAPS)
What is the coefficient in front of a variable
by itself?
Your answer
O Try Again!
Answer:
UNLOCK
UNLOCK
A normal number
Answer:The answer is ONE
Step-by-step explanation:
What number has the same absolute value as 34?
It can't be 34
Answer:
The only two values that have the same absolute value of 34, is +34 and -34.
Step-by-step explanation:
What is the square root of 153 divided by 13
plz help me fast
Answer:
About 0.95
Step-by-step explanation:
Answer:
0.9514859136
Step-by-step explanation: I use calculator lol
How do you find the original price of an item, given the tax percent and the final cost ?
solve his problem for X and Y
Answer:
y = 5, 3; x = 171, 155
Step-by-step explanation:
8y - 15 = y^2
y^2-8y+15=0
y^2-3y-5y+15=0
y(y-3)-5(y-3)=0
(y-5)(y-3)=0
y can be 5 or 3.
x = 180 - (8y - 15)
x = 180 - (8(3)-15)
x = 180 - 9
x = 171
OR
x = 180 - (8(5) - 15)
x = 180 - 25
x = 155
С
Which inequality is true?
8
9
O 510
0.13
8
5
8 5
072
Answer:
0.72
Step-by-step explanation:
it doesn't exist
Aidan has been offered a job to paint the outside of a barn. If one gallon costs $35 and covers 550 square feet. How much will it cost to paint the barn with one coat?
Complete Question
The diagram of the barn is shown on the first uploaded image
Answer:
The cost is [tex]C = \$ 530[/tex]
Step-by-step explanation:
From the question we are told that
The cost of one gallon of paint is [tex]c = \$35[/tex]
The area the one gallon of paint covers is [tex]A = 550 \ square\ feet[/tex]
Generally from the diagram the region of the barn which can be painted is mathematically represented as
[tex]A =80 * 35 + 38 * 35 + 2( \frac{1}{2} * 38 * 2 )[/tex]
=> [tex]A = 8336 \ ft^2[/tex]
From the question
1 gallon covers 500 square feet
x gallon will cover 8336 square feet
So
[tex]x = \frac{8336}{550}[/tex]
=> [tex]x =15 \ gallons[/tex]
Generally the cost of 15 gallons of paint is mathematically represented as
[tex]C = c * x[/tex]
=> [tex]C = 15 * 35[/tex]
=> [tex]C = \$ 530[/tex]
Find the matrices of the following linear transformations
from R3 to R3.
The orthogonal projection onto the xy-plaNE: (3X3)...
The reflection in the z-axis:(3X3)
Answer:
The matrixes are in the explanation box.
1. A mapping of (x,y,z) to (x,y,0)
2. Is a mapping of (x,y,z) to (-x,-y,z)
Step-by-step explanation:
We have the orthogonal projection onto the cy-plane to be a mapping of (x,y,z) to (x,y,0). Then we will have a transformation matrix that has the form below.
[1 0 0]
[0 1 0]
[0 0 1]
For the reflection in the z-axis,it is a reflection of (x,y,z) to (-x,-y,z). Our matrix will then have the form below
[-1 0 0]
[0 -1 0]
[0 0 1]
The matrix that projects into the XY plane is:
[tex]\left[\begin{array}{ccc}1&0&0\\0&1&0\\0&0&0\end{array}\right][/tex]
The matrix that reflects in the z-axis is:
[tex]\left[\begin{array}{ccc}-1&0&0\\0&-1&0\\0&0&1\end{array}\right][/tex]
How to find the transformations?
First, we want to find the transformation that goes from (x, y, z) to (x, y, 0).
Remember that:
[tex](x, y, z)*\left[\begin{array}{ccc}1&0&0\\0&1&0\\0&0&1\end{array}\right] = (x, y, z)[/tex]
That matrix is the identity matrix.
Then, if we want to remove the z component, then we just need to make the last row-column equal to zero, we will get:
[tex](x, y, z)*\left[\begin{array}{ccc}1&0&0\\0&1&0\\0&0&0\end{array}\right] = (x, y, 0)[/tex]
Now we want to make a reflection over the z-axis, this is a rotation of 180° around the z-axis, so it changes the sign of the x and y components:
(x, y, z) to (-x, -y, z)
From this, we conclude that the matrix will be:
[tex](x, y, z)*\left[\begin{array}{ccc}-1&0&0\\0&-1&0\\0&0&1\end{array}\right] = (-x, -y, z)[/tex]
If you want to learn more about matrices, you can read:
https://brainly.com/question/11989522
Brainliest to the right answer!
Answer: 5 1/4
Step-by-step explanation:
Answer:
Step-by-step explanation:
Its D
Can someone tell me if 180 is correct????
Answer:
Yes, you are correct.
Step-by-step explanation:
Feel free to give brainliest.
Have an amazing day!
Here’s a graph of a linear function. Write the equation that describes that function
Express it in slope intercept form.
PLS HELP ITS DUE TODAY!! I WILL MARK U BRAINLIEST
Answer:
[tex]y = \frac{1}{2}x + 3[/tex]
Solve Algebraically 2^3-x=565
x = 3 − log 565/ log 2 = − 6.142107057
Step-by-step explanation:
2^3-x =565
Log 2^3-x = log 565
(3-x) times log 2 = log 565
3 − x = log 565 / log 2
3 − log 565 / log 2 = x
x = 3 − log 565/ log 2 = − 6.142107057
Answer:
x = -557
Step-by-step explanation:
2^3 is 2x2x2 which equals 8. 8 - x = 565. Move the constant to the right-hand side and change its sign. -x = 565 - 8. This is 557. Now change the negative sign on the x to a positive and the positive sign on the 557 to a negative. x= -557.
3. What is the distance between the points (4, 5) and (-3, 5)?
1 units
7 units
10 units
8 units
Answer:
The actual answer is 7 units.
Step-by-step explanation:
Distance between two bodies=
root under[(x2-x1)^2+(y2-y1)^2]
=root under[(-3-4)^2+(5-5)^2]
= root under (49)
=7 units.
Find the slope of the line containing the points (10,400) and (50, 900). Write your answer as a simplified fraction
Answer: 25
2
Step-by-step explanation:
900 - 400 = 500 = 25
50 - 10 = 40= 2
I need the missing length help (10 points )
Answer:
5.38516480713
Step-by-step explanation:
a^2+b^2=c^2
5^2+2^2=c^2
25+4=c^2
c^2=square root of 29
c=5.38516480713
I’m rly confused pls help
Answer:
A
Step-by-step explanation:
12x 5/2= 60/2= 30
3x5/2=15/2=7.5
7.5 by 30
Select the correct answer from each drop-down menu.
Consider these functions:
For x ≥ 0, the value of f(g(x)) is __
For x ≥ 0, the value of g(f(x)) is __
For x ≥ 0, functions f and g __ inverse functions.
Choices:
1. x,4x,8x
2. x,4x,8x
3. are, are not
Answer:
x
x
are
Step-by-step explanation:
For x ≥ 0, the value of f(g(x)) is x,For x ≥ 0, the value of g(f(x)) will be x and functions f and g are inverse functions.Option a from all the choices is corect.
What is a function?A connection between independent variables and the dependent variable.is defined by the function.
Functions help to represent graphs and equations. A function is represented by two variables one is dependent and another one is an independent function.
The relation between them is shown as y if dependent and x is the independent variable;
Given function;
f(x) = 16x²
g(x)=(1/4)√x
For x ≥ 0, the value of f(g(x)) is found as;
f(x) = 16x²
[tex]\rm f(g(x)) = 16 (\frac{1}{4} \sqrt x) ^2\\\\ f(g(x)) =\frac{16}{16} x\\\\ f(g(x)) = x[/tex]
For x ≥ 0, the value of g(f(x)) is
g(x)=(1/4)√x
[tex]\rm g(x)=\frac{1}{4}\sqrt x \\\\ g(x ) = \frac{1}{4} \times \sqrt{16 \ x^2}\\\\ g(x) = \frac{4}{4} x \\\\ g(x) = x[/tex]
For x ≥ 0, functions f and g are inverse functions
Let,
y=F(X)
If,
y= 16x²
x=16y²
y² = x/16
y=(1/4)√x
Hence,For x ≥ 0, the value of f(g(x)),For x ≥ 0, the value of g(f(x)) will be x and x respectively.and For x ≥ 0, functions f and g are inverse functions.
Hence, option a from all the choices is corect.
To learn more about the function refer to the link https://brainly.com/question/12431044.
#SPJ2
Shannon wants to buy 4 coffee mugs for the lowest amount.a set of 4 mugs costs £12
i can help, but you need to write the whole question..
The classroom has 12 9/10 meters of tape in one area of the building, and 8 3/5 meters of tape in another part. How much tape does the classroom have in all
Answer: 32
Step-by-step explanation: 45wheeej5t
Answer: 21 1/2
Step-by-step explanation:
12 9/10 + 8 3/5 = 21 1/2
hope this helps!
I WILL MARK BRAINLIST
Answer:
im pretty sure its a
Step-by-step explanation:
Answer:
..........
Step-by-step explanation:
For a particular clothing store, a marketing firm finds that 16% of $10-off coupons delivered by mail are redeemed. Suppose six customers are randomly selected and are mailed $10-off coupons. What is the expected number of coupons that will be redeemed?
The expected number of coupons that will be redeemed is 0.96.
Given data:
To find the expected number of coupons that will be redeemed, multiply the probability of redemption for a single coupon by the number of coupons distributed.
Given that 16% of $10-off coupons delivered by mail are redeemed, the probability of redemption for a single coupon is 0.16.
Since six customers are randomly selected and mailed coupons, the number of coupons distributed is 6.
Therefore, the expected number of coupons that will be redeemed is:
Expected number of redeemed coupons = Probability of redemption * Number of coupons distributed
= 0.16 * 6
= 0.96
Hence, the expected number of coupons is 0.96.
To learn more about probability, refer:
https://brainly.com/question/17089724
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Write the slope-intercept form of the equation of the line described. through (2, -5) perpendicular to y = 1/3x -1
Answer:
y = -3x + 1
Step-by-step explanation:
Perpendicular lines have opposite reciprocal slopes, so the slope will be -3.
Plug in the slope and given point into y = mx + b
y = mx + b
-5 = -3(2) + b
-5 = -6 + b
1 = b
Then, plug in the slope and y intercept into y = mx + b again:
y = -3x + 1 will be the equation of the line
Do You Know How?
In 2-5, estimate. Then, tell if your
estimate is an overestimate or
underestimate.
2. 29 X 688
3. 210 X 733
4. 43 X 108
5. 380 X 690
Answer:
2. 30 × 700 = 21,000 Over
3. 200 × 700 = 140,000 under
4. 40 × 100 = 4,000 under
5. 400 × 700 = 280,000 over