add 10 to z, then double the result
Do not simplify any part of the expression.
2(z+10)
2z+20
Answer:
2z+20
A large hotel has 347 rooms. There are 7 floors, and each
floor has about the same number of rooms. About how many
rooms are on a floor?
Answer:
About 50 rooms on each floor because
Step-by-step explanation:
347÷7÷49
I rounded it up because the numbers kept going xD
x + 2.5 = 10
PLEASE ANSWER IMMEDIATELY!
Answer:
7.5
Step-by-step explanation:
x + 2.5 = 10
- 2.5 = - 2.5
x = 7.5
For x=4 the functiom f(x) =x2+bx+c has the minimum value of_9.find c
Answer:
[tex]c = 25[/tex]
Step-by-step explanation:
Vertex of a quadratic function:
Suppose we have a quadratic function in the following format:
[tex]f(x) = ax^{2} + bx + c[/tex]
It's vertex is the point [tex](x_{v}, y_{v})[/tex]
In which
[tex]x_{v} = -\frac{b}{2a}[/tex]
[tex]y_{v} = -\frac{\Delta}{4a}[/tex]
Where
[tex]\Delta = b^2-4ac[/tex]
If a>0, the vertex is a minumum point, that is, the minimum value happens at [tex]x_{v}[/tex], and it's value is [tex]y_{v}[/tex].
In this question:
[tex]a = 1[/tex]
Minimum value at [tex]x = 4[/tex] means that [tex]x_v = 4[/tex]. So
[tex]x_{v} = -\frac{b}{2a}[/tex]
[tex]4 = -\frac{b}{2}[/tex]
[tex]b = -8[/tex]
So
[tex]f(x) = x^2 - 8x + c[/tex]
Minimum value of 9:
[tex]y_v = 9[/tex]
So
[tex]y_{v} = -\frac{\Delta}{4a}[/tex]
[tex]9 = -\frac{\Delta}{4}[/tex]
[tex]-\Delta = 36[/tex]
[tex]\Delta = -36[/tex]
[tex]b^2 - 4ac = -36[/tex]
[tex](-8)^2 - 4c = -36[/tex]
[tex]-4c = -100[/tex]
[tex]4c = 100[/tex]
[tex]c = \frac{100}{4}[/tex]
[tex]c = 25[/tex]
Find the x-intercept of the following equation: 9x^2 + 2y=18
Step-by-step explanation:
To get the x-intercept, set y = 0. Then solve for x:
[tex]9 {x}^{2} = 18 \\ x = \sqrt{2} [/tex]
Therefore, the x-intercept is
[tex]( \sqrt{2} \: \: \: \: 0)[/tex]
Select the correct answer.
Becky wants to make a sculpture in the shape of a rectangular prism for the science fair. The sculpture will be made of cubic foot of clay and will have a base area of square foot. How tall will the sculpture be?
A.
foot
B.
foot
C.
foot
D.
foot
E.
foot
The height of the rectangular sculpture is h = ( 20/21 ) feet
What is the Volume of a Rectangle?The volume of the rectangle is given by the product of the length of the rectangle and the width of the rectangle and the height of the rectangle
Volume of Rectangle = Length x Width x Height
Volume of Rectangle = Area of Rectangle x Height
Given data ,
Let the volume of the rectangular sculpture be V
Now , the value of V = ( 16/21 ) feet³
And , the base area of the rectangular sculpture B = ( 4/5 ) feet²
Volume of Rectangle = Area of Rectangle x Height
On simplifying , we get
The height of the sculpture h = ( 16/21 ) feet³ / ( 4/5 ) feet²
The height of the sculpture h = ( 20/21 ) feet
Therefore , the value of h is ( 20/21 ) feet
Hence , the height of the sculpture is ( 20/21 ) feet
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QUICK If r+t = r and r−t = −s which of the following must be equal to t?
(A) −s
(B) −r
(C) 0
(D) r
(E) s
Answer:
C) 0
brainliest plz
The value of t on solving the equations r + t = r and r − t = − s is 0 and s + r so, option C is correct.
What is the equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side. It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Given:
r + t = r and r − t = − s
Calculate the value of t as shown below,
t = r - r (Transform the equation as shown)
t = 0
-t = -s - r
t = s + r
Thus, the value of t can be 0 and s + r.
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Rami designed a small pond for a restaurant. The diagram below shows the measurements of the pond.
A composite figure created from two horizontal rectangular prisms, one on top of the other. The wider one is on top. The total height is 4 feet. The length of the bottom one is 12 feet. The width of the top one is 6 feet, the height is 2 feet, and the length is 18 feet.
How many cubic feet of water are needed to fill the pond?
Answer:
The volume of water that would fill the pond is 360 cubic feet.
Step-by-step explanation:
volume = length x width x height
The cubic feet of water to fill the pond = total volume of the composite figure
Thus,
total volume of the composite figure = V 1 + V 2
V 1 = 12 x 6 x 4
= 288 cubic feet
V 2 = 6 x 6 x 2
= 72 cubic feet
Volume of water to fill the pond = V 1 + V 2
= 288 + 72
= 360 cubic feet
The volume of water that would fill the pond is 360 cubic feet.
NB: The diagram to the question is herewith attached to this answer for more clarifications.
Let g(x) = - 2x - 1. h(x) = - X+4. Find (h o g)(4).
Answer:
-1
Step-by-step explanation:
-2(-x+4) - 1
2x - 8 - 1
2(4) - 8 - 1
8 - 8 - 1
-1
A woman drives her car 180 miles in 3 hours. At this rate how far will she travel in 5 hours?
Answer:
288
Step-by-step explanation:
you would do 180 devided by 3 then multiply that number by 5
If a 6.2% Social Security tax is applied to a maximum wage of $106,800, the maximum amount of Social Security tax that could ever be charged in a single year is: a. $213.60 b. $6,408.00 c. $6,621.60 d. $17,225.81
Answer:
Correct Answer:
C: $6,621.60
(EDGE 2021)
Step-by-step explanation:
The maximum amount of Social Security tax that could ever be charged in a single year exists $6,621.60.
What is Social Security tax?Social Security exists financed through a reliable payroll tax.
Knowing that a 6.2% Social Security tax exists applied to a maximum wage of $106,800, the maximum amount of Social Security tax that could ever be charged in a single year stands at $6,621.60. Social Security offers all but unemployment insurance.
Therefore, the correct answer is option c. $6,621.60
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Plz help me answer for geometry
Answer: See the diagram below for the construction.
The green segment DE represents the length of [tex]x = \sqrt{rs}[/tex]
=======================================================
Follow these steps to construct [tex]x = \sqrt{rs}[/tex]
Draw a really long horizontal line. Plot point A anywhere on this line. Use your compass to measure segment r. The width of the compass is as wide as the segment is. Transfer this width to the line drawn in step 1. You'll have the non-pencil part of the compass placed at point A. Then you'll draw an arc (aka piece of a circle) to have that arc intersect the horizontal line. Mark this point as point B. We can see that r = length of segment AB.We'll follow the same idea as step 2. This time we'll be transferring segment s. After doing so, we'll have point C on the segment such that BC = s. Also, point C is to the right of A and B. Refer to the diagram. Use your compass and straightedge to locate the midpoint of A and C. Let's call this point D. Note: D is the same location as B only when r = s. Use your compass to draw a circle centered at D, and that circle goes through points A and C. This makes AC a diameter of the circle.In the process of making the midpoint D (step 4), you should have constructed the perpendicular bisector. So you should have a vertical line through point D. This vertical line intersects the circle at point E. The length of segment DE is exactly [tex]x = \sqrt{AB*BC} = \sqrt{rs}[/tex] units long. The proof of this is for another time since the proof is fairly lengthy. For more info, you can search out "geometric mean theorem" with quotes.Note: your drawing may have pencil arc markings that aren't shown in the diagram I made. Ideally these lines are faint not to distract from the darker segments.
tantheta+sintheta/tantheta-sintheta=sectheta+1/sectheta-1
Step-by-step explanation:
sin(theta)÷costheta+sintheta/sintheta÷COStheta- sintheta
sintheta+sintheta×costheta/sintheta-sintheta-costheta
sintheta(1+Costheta)/sintheta(1-costheta)
1+1÷Sectheta/1-1÷Sectheta
sectheta+1÷sectheta/sectheta-1÷sectheta
sectheta+1/sectheta-1
Answer:
TO PROVE :-
[tex]\frac{\tan \theta + \sin \theta}{\tan \theta - \sin \theta} = \frac{\sec \theta + 1}{\sec \theta - 1}[/tex]SOLUTION :-
First of all , simplify L.H.S.
[tex]\frac{\tan \theta + \sin \theta}{\tan \theta - \sin \theta}[/tex]
Use [tex]\tan \theta = \frac{\sin \theta}{\cos \theta}[/tex] in place of tanθ.[tex]=> \frac{\frac{\sin \theta}{\cos \theta} + \sin \theta }{\frac{\sin \theta}{\cos \theta} - \sin \theta}[/tex]
Take sinθ common from both numerator & denominator.[tex]=> \frac{\sin \theta (\frac{1}{\cos \theta} + 1) }{\sin \theta (\frac{1}{\cos \theta}- 1) }[/tex]
Cancel the sinθ from both numerator & denominator.[tex]=> \frac{\frac{1}{\cos \theta} +1}{\frac{1}{\cos \theta} -1}[/tex]
Use [tex]\sec \theta = \frac{1}{\cos \theta}[/tex][tex]=> \frac{\sec \theta + 1}{\sec \theta - 1}[/tex]
∴ L.H.S. = R.H.S
10. What is the circumference of P in terms of a.
Look at image
Answer:
B
Step-by-step explanation:
fasting for Amazon on the natural
What??????????????????
Which expression is equivalent to?
Answer:
D
Step-by-step explanation:
multiply the inside by -0.5
Answer:
[tex]-3\left(x-2\right)[/tex]
Step-by-step explanation:
[tex]\frac{-1}{2}\left(6x-12\right)=\frac{\left(-1\right)\left(6x-12\right)}{2}==-\frac{\left(6x-12\right)}{2}=-3\left(x-2\right)[/tex]
SOMEONE HELP ME ILL GIVE YOU 20 POINTS MATH
I cannot quite show this to you, but the coordinates are listed below. If you want to know how you would answer this type of question, read the following. The question is indicating that you must translate. This means to move the figure however many units. In this question, it says 5 units to the right and 4 units down. You would take the bolded point and drag it 5 to the right. Then, from that point, drag it 4 units down.
Point in original: (-7,3)
Point in final figure:(-2,-2)
Hope this helps!
A jar contains five blue marbles and two red marbles. Suppose you choose a marble at random, and do not replace it. Then you choose a second marble. Find the probability of the following even
Both of the selected marbles are red
Answer:
[tex]\frac{1}{21} = 0.0476[/tex] probability that both marbles are red.
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
Find the probability that both of the selected marbles are red
First marble: 2 red from a set of 5 + 2 = 7
Second marble: 1 red from a set of 6.
So
[tex]p = \frac{2}{7}*\frac{1}{6} = \frac{2}{42} = \frac{1}{21} = 0.0476[/tex]
[tex]\frac{1}{21} = 0.0476[/tex] probability that both marbles are red.
The graph of y= Vx is transformed as shown in the graph below. Which equation represents the transformed
function?
Answer:
option#1 y = -√x + 2
Step-by-step explanation:
---------
The equation that represents the transformation function is: y = -√x+2
What is transformation?A Transformation in Math is a process of moving an object (two-dimensional shape) from its original position to a new position.
Given that, a parent function f(x) = √x,
Now, this function f(x) is transformed to get a function whose graph is given.
Let the transformed function is: g(x)
Clearly by looking at the graph we observe that at x=4 we have:
g(x)=0
1) y = -√x+2
at x = 4
y = -√4+2
y = 0 [correct]
Hence, the equation that represents the transformation function is: y = -√x+2
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Select the correct answer.
A home-based sign company uses this function to model its monthly profit, where x is the price of each sign it sells.
p(x) = -10x^2 + 498x - 1,500
what is the company's profit if it sells each sign for $20?
A. $18,020
B. $4,460
C. $14,420
D. $1,402
The profit made id each sign is sold for $20 is $4460
The profit model, P(x) = -10x² + 498x - 1,500
Where, x = price per sign sold
If the price per sign sold is $20. Hence, x = $20
The profit made can be calculated thus :
Put x = 20 in the profit function :
P(20) = -10(20)² + 498(20) - 1,500
P(20) = - 10(400) + 9960 - 1500
P(20) = - 4000 + 9960 - 1500
P(20) = $4,460
The profit made is $4,460
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Answer:
$4,460
Step-by-step explanation:
I got a 100% on my test
Chapter 4 Exam: Dimensional Analysis
question 10 of 10
10.)
A recycling company makes $500 per ton of aluminum scrap collected. If the company collects 200 pounds of aluminum scrap per day, how
many days are needed to make $2500? (Tip: One ton equals 2000 pounds).
Answer:
50 days are needed to make $2500.
Step-by-step explanation:
Number of tons per day:
One ton equals 2000 pounds, as the problem states as a hint.
The company collects 200 pounds per day.
1 ton - 2000 pounds
x tons - 200 pounds
2000x = 200
x = 200/2000
x = 0.1
0.1 tons per day.
A recycling company makes $500 per ton of aluminum scrap collected.
0.1*500 = $50 per day.
How many days are needed to make $2500?
1 day - $50
x days - $2500
50x = 2500
x = 250/5
x = 50
50 days are needed to make $2500.
WILL GIVE BRANLIST Probability Event:
You have a deck of 20 cards numbered 1-20. You draw a card from a deck and keep it. The next person draws another card. What is the probability you will both draw an even card?
Label the probability event above as either
A
Independent
B
Dependent
Answer:
9/38
Step-by-step explanation:
The odds of your drawing an even card from the deck are 10/20, or 1/2. The odds of your friend also taking an even card after (WITHOUT recplacing the card) is 9/19, which cannot be further simplified. You multiply the two -- 1/2 * 9/19 -- which results in your answer, 9/38. This is a dependent probability.
how far away from his house was tyrone after 16 minutes
Answer:
100000km
Step-by-step explanation:
first what js does menabsif tryskok
Answer:
well I can help you if I can get some more infomation
like whos him? weres his house how long is the distance between them?
I need help plz I have a time test plz
Answer:
interest = $600
Step-by-step explanation:
for simple interest,
I = PTR/100
Principal (P) = $5000
Time (T) = 3 YEARS
Rate(R) = 4%
therefore, Interest (I) = $5000 × 3 × 4 / 100
= $ 600
In a cookie jar, 1/4 of the cookies are chocolate chip, and 1/2 of the rest are peanut butter. What fraction of all the cookies is peanut butter?
Answer:
3/8
Step-by-step explanation:
........................
Renee is standing at point (1, 0) on a gigantic circular track of radius 1 mile with center (0, 0). She walks counterclockwise along the track for 5 miles and stops. What is the measure of the angle formed by Renee's location and the points (0, 0) and (1, 0)?
Answer:
32
Step-by-step explanation: xbcjxnszHJCGewupearl had some beads She used 3/5 of them to make bracelets and 1/4 of the remainder to decorate her sweater if she had 300 beads left how many beads did she have at first jdks
The measure of the angle that defines the given arc is 286.6°
What is the measure of the angle?For a circle with a radius R, the length of an arc defined by an angle θ in radians is given by:
L = θ*R
In this case, we know that the radius is 1 mile, and the length of the arc is 5 miles, replacing that on the above equation we get:
5mi = θ*1mi
5 = θ
Then the angle is 5 radians, now remember that:
3.14 rad = 180°
Then:
5 rad = (5/3.14)*180° = 286.6°
We conclude that the measure of the angle is 286.6°
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Yolanda is planning out her square vegetable garden. One side 10 feet. How
can I represent the perimeter with equations?NO LINKS
Answer this for 10 points
Answer:
Equations would be;
30 + 50 + y = 180
and
y = 180 - 80
Additional:
If you are looking for y and u value then here they are:
y = 100°
u = 25°
Hope this helps!
In testing to see whether opinion with respect to the use of instant replay is independent of the category of the person interviewed, a chi-square test statistic of 27.99 and a p-value less than 0.001 were calculated. Which of the following statements is correct?
a. The number of degrees of freedom for the test is 8 - 1 = 7.
b. The chi-square test should not have been used because two of the counts in the table are less than 5.
c. The null hypothesis states that there is an association between category and opinion about the use of instant replay, and the small p-value suggests that the null hypothesis should be rejected.
d. The small p-value suggests that there is evidence of an association between category and opinion about the use of instant replay.
e. The chi-square test shows that fans favor the use of instant replay.
Answer: (D) The small p-value suggests that there is evidence of an association between category and opinion about the use of instant replay.
Step-by-step explanation:
From the P-value supplied, it shows that the researcher was 99% confident of the experiment and have 1% chance of error.
Given that the p-value less than 0.001 were calculated, it translates that there is a statistical dependency between the category of the people interviewed and opinion about the use of instant replay.
HELPPP
Determine whether a triangle with the given side lengths is a right triangle
Answer:
1. right angle
2. not a right angle (acute)
3. not a right angle (acute)
4. right angle
Step-by-step explanation:
if all three numbers add up to 90 then it's a right angle, anything below 90 is an acute angle and anything above 90 is an obtuse angle