Answer:
x^2 +2xy + 2xz - y^2 + z^2
Step-by-step explanation:
(x+y+z) (x-y+z)
x^2 + xy + xz + xy - y^2 + yz + xz - yz + z^2
x^2 + xy + xy + xz + xz - y^2 + yz - yz + z^2
x^2 +2xy + 2xz - y^2 + z^2
Answer:
x² +2xy + 2xz - y² + z²
Step-by-step explanation:
James earns $8.75 per hour working at the Kroger after school. He needs at least $250 for an iPhone. Write and solve an inequality that describes how many hours James must work to buy the iPhone.
Answer:
29 hours
Step-by-step explanation:
$250: $8.75= 28.5. and you round that up to 29. cause 28 times 8.75 is $245. and that's below the amount that James needs
A ramp is 35 ft long rises to a platform. The bottom is 15 ft from the foot of the ramp. Find x, the angle of elevation of the ramp. Round your answer to the nearest tenth of a degree.
Answer:
The angle of elevation of the ramp is 64.60°
Step-by-step explanation:
Given;
length of the ramp, L = 35 ft
distance of the platform to the foot of the ramp, d = 15 ft
The length of the ramp forms the hypotenuse side of this right angled triangle;
The angle of elevation of the ramp is in angle between the hypotenuse and adjacent side of the triangle.
Cos x = adjacent / hypotenuse
Cos x = 15 / 35
Cos x = 0.4286
x = Cos⁻¹ (0.4286)
x = 64.62
x = 64.60°
Therefore, the angle of elevation of the ramp is 64.60°
Pls help im timedTrey converted 12,500,000 into scientific notation as 12.5 * 10 to the power of 6 his he correct
Answer:
12,500,000 (twelve million five hundred thousand) is an even eight-digits composite number following 12499999 and preceding 12500001. In scientific notation, it is written as 1.25 × 107.
Step-by-step explanation:
Point T is on line segment \overline{SU} SU . Given TU=4x+1,TU=4x+1, SU=8,SU=8, and ST=3x,ST=3x, determine the numerical length of \overline{TU}. TU .
Answer:
5Step-by-step explanation:
If point T is on the line SU, then ST+TU = SU. Given TU=4x+1, SU=8, and ST=3x
Substituting the given values into the expression ST+TU = SU
8 = 3x+4x+1
8 = 7x+1
collect like terms;
7x = 8-1
7x = 7
Divide through by 7
7x/7 = 7/7
x = 1
Substitute x = 1 into the expression TU = 4x+1 to get the length of TU
TU = 4(1)+1
TU = 4+1
TU = 5
Hence the length of TU is 5
Answer:
Step-by-step explanation: the answer is 5
1+cosx/1-cosx=tan^2x/(sec^2-1)^2
Answer:
Take a look at the attachment below
Step-by-step explanation:
help please! which point on the number line below bests represents this?
Answer:
Point M
Step-by-step explanation:
In what ways are driverless cars safer than human drivers?
Answer:
Driverless cars may be safer than cars with drivers because they do not get tired or distracted, and they do not engage in risky driving practices such as speeding and/or texting while driving, drinking and driving, etc..
Step-by-step explanation:
Edg. 2020
Answer:Driverless cars may be safer than cars with drivers because they do not get tired or distracted, and they do not engage in risky driving practices such as speeding and/or texting while driving, drinking and driving, etc..
Step-by-step explanation:
Solve for j. please help meee
Answer:
112 degrees
Step-by-step explanation:
Angle J and the other angle combines to form a straight angle. In other words, they must total 180 degrees. Thus:
[tex]68+j=180[/tex]
Subtract 68 from both sides:
[tex]j=112\textdegree[/tex]
And we're done!
Answer:
I believe the answer is 112 degrees
Step-by-step explanation:
If you know, a straight line hs 180 degrees. Well, then having this knowledge, make a simple equation x+68=180.
Then Solve the equation
x+68=180
-68 -68
x=112
Hope it helps!
I NEED HELP EXPLAINING HOW I GOT MY ANSWERS ILL GIVE AS MANY POINTS POSSIBLE
Answer:
Step-by-step explanation:
3x+⅝>4x-½ select from the drop down menus to correctly justify each step.
Step-by-step explanation:
3x-4x>-1/2-5/8
-x>-9/8
x<9/8
What is the square root of 4?
Answer:
The square root of 4 is 2
Step-by-step explanation: If you multiply 2*2 it will equal and divide 4/2 you will get 2 so it is 2
The temperature was -1 °F, 5 °F, 8 °F, and 6 °F. What was the average temperature?
Answer:
4.5
Explanation:
add up all the numbers and divide by the amount
solve for h in h+6/5=2
Answer:
h=4/5
Step-by-step explanation:
[tex]h + \frac{6}{5} = 2 [/tex]
Collect like terms and simplify
[tex]h = 2 - \frac{6}{5} \\ h = \frac{4}{5} [/tex]
(GIVING BRISTLIEST) What is 50x+100x-50y?
Answer:
[tex]50(3x-y)[/tex]
Step-by-step explanation:
You just gave an expression, therefore:
[tex]50x+100x-50y[/tex]
[tex]150x-50y[/tex]
[tex]50(3x-y)[/tex]
[tex]\framebox{\parbox[t][1.0cm]{4.50cm}{\addvspace{0.2cm} \centering $ \;\; \, \;\; \;\; 150x+-50y $ } }\\[/tex]
Step-by-step explanation:
Let's simplify.
[tex]50x+100x-50y[/tex]
To solve this, we will have to combine the like terms.
[tex]50x+100x+-50y[/tex]
Let's add parenthesis.
[tex](50x+100x)+(-50y)[/tex]
This equals:
[tex]150x+-50y[/tex]
Hope this helps!
A sporting goods sold 2.5 times as many football as basketball last year drag footballs to represent the number of football sold for every 2 basketball sold.
Answer:
5 footballs were sold for every 2 basketballs sold.
Step-by-step explanation:
2.5 times as many football as basketball was sold last year
This can be represented as
1 basket ball sold = 2.5 footballs sold
for every 2 basketball sold, number of football sold = 2.5 x 2 = 5 footballs
Solve for p in the Ilteral equation 3p + 4r = q.
solve for p
Answer:
p = [tex]\frac{q}{3} - \frac{4r}{3}[/tex]
Step-by-step explanation:
[Giving Brainleist] What is 4x+2?
Answer:
4x + 2 = 0
4x = -2
x = -1/2
if you need it simplified it already is
Please help me solve this question with full solutions!!!
Answer:
first
|a+3|/2=1
|a+3|=1*2
|a+3|=2
a=2-3
so,a=-1
second
2|b+1|=6
|b+1|=6/2
|b+1|=3
b=3-1
so,b=2
now,|a+b|
= -1+2
= 1
therefore,|a+b|= 1
Dao receives an employee discount on the purchase of a new automobile. The automobile that he is interested in has a sticker price of $18,560. If his discount is 18 percent, what is the price that Dao will pay?
$3,340.80
$3,712.00
$12,992.00
$15,219.20
Answer:
D. $15,219.20
Step-by-step explanation:
given:
The automobile that he is interested in has a sticker price of $18,560.
If his discount is 18 percent,
find:
what is the price that Dao will pay?
solution:
sale price = $18,560 - (0.18 x $18,560) = $15,219.20
therefore,
Dao will pay $15,219.20
the answer is D.
im taking the test right now..
For each pair of polygons, describe a sequence of translations, rotations, and reflections that takes Polygon P to Polygon Q.
Answer:
1. It is a reflection across the y axis, a rotation and a translation to the right and down.
2. A reflection across the x-axis, translation left 2 and down 1, with a 45 degree clockwise rotation.
3. An 180 degree reflection on line bc and a translation
Step-by-step explanation:
Case 1 involves translation and rotation.
Case 2 involves translation, rotation and reflection.
Case 3 involves translation and reflection.
In this question, we are going to describe succinctly all Steps needed to turn each Polygon P into respective Polygon Q:
Case 1:
(i) Translation along a Vector between Points A and H.
(ii) Rotation around Point H.
Case 2:
(i) Translation along a Vector between Points B and J.
(ii) Rotation around Point J.
(iii) Reflection with respect to a "vertical" Lines passing through Point J.
Case 3:
(i) Translation along a Vector between Points B and F.
(ii) Reflection with respect to a Line passing through Segment FD.
Please see this question related to Operations with Polygons: https://brainly.com/question/12091224
Which has the lowest unit price ?
Answer:dd
Step-by-step explanation:d
Answer:
The answer is $0.33 for 11 oz
Step-by-step explanation:
All you have to do is divide the oz by the price and A is the lowest.
True or false? (-x)^4 = -x^4 Explain your answer.
Answer:
true, theres nothing inside the parenthesis meaning that you remove it as a first step
Step-by-step explanation:
Order of Operations
If the Order of Operations did not exist, how many
possible solutions can you find for this expression?
4 + 9 + 16 : 4 - 8 – 3 x 5
Given:
[tex]4 + 9 + 16 \div 4 - 8 -3 \times 5[/tex]
To find:
The number of possible solutions, if the Order of Operations did not exist.
Solution:
We have,
[tex]4 + 9 + 16 \div 4 - 8 -3 \times 5[/tex]
Now,
Case 1:
[tex][4 + 9 + 16] \div [4 - 8 -(3 \times 5)]=29\div (4 - 8 -15)[/tex]
[tex]4 + 9 + 16 \div 4 - 8 -(3 \times 5)=-\dfrac{29}{19}[/tex]
Case 2:
[tex][4 + 9 + 16] \div (4 - 8 -3) \times 5=29\div (-7\times 5)[/tex]
[tex]4 + 9 + 16 \div (4 - 8 -3) \times 5=-\dfrac{29}{35}[/tex]
Case 3:
[tex]4 + 9 + (16 \div 4) - 8 -(3 \times 5)=4+9+4-8-15[/tex]
[tex]4 + 9 + (16 \div 4) - 8 -(3 \times 5)=-6[/tex]
Many more possibilities are there.
Therefore, there are more than 3 possible solutions.
I NEED HELP PLEASE PLEASE HELP ME :(
Answer:
-1/125
Step-by-step explanation:
1/(-5)^3
evaluate
1/-125
Convert 15°C to °F (to the nearest tenth).
15°c = 59°f
because :
(15 °C × 9/5) + 32 = 59 °F
===
so to the nearest tenth its doing 60°f
(– 2y2 + 6y – 1) - (- 4y2 – 3y +9)
Answer:
Step-by-step explanation:
-2y^2 + 6y - 1 + 4y^2 + 3y - 9
2y^2 + 9y - 10
Please help! (-5)(16)(-3)(-2)
Answer:
-480
Step-by-step explanation:
(-5)(16)(-3)(-2) =
= (-80)(-3)(-2)
= (240)(-2)
= -480
Simplify the expression
3-5(2x-5)
Answer:
-10x + 28
Step-by-step explanation:
Step 1: Write expression
3 - 5(2x - 5)
Step 2: Distribute -5
3 - 10x + 25
Step 3: Combine like terms
-10x + 28
Answer:
= -10x+28
Step-by-step explanation:
The temperature at noon at a ski resort is 3 degrees F. The temperature drops 8 degrees F by midnight. What is the temperature at midnight?
Answer:
-5 degrees F
Step-by-step explanation:
subtract -9x-7 from 8x2 -5x +9
Answer:
8x2+4x+16
Step-by-step explanation:
first you would place as so
8x2-5x+9 - (-9x-7)
you would then change question to addition but do this you would have to switch the signs for the one in the parenthisis. it would look like 8x2-5x+9 + 9x+7
You then add like terms and put them into standard form.
hope this helps!!