Fill in the blank with a number to make the expression a perfect square.
U^2 + 2u + ?
Answers
Answer:
u² + 2u + 1
Step-by-step explanation:
In the question it's asking to find the the number in the blank to make the expression a perfect square.
Let the number in the blank be 'x'.
To guess 'x' , use the algebraic identity :- [tex](a + b)^2 = a^2 + (2 \times a \times b) + b^2[/tex]
While matching the expression with identity , the expression will look like this :- u² + 2ux + x²
In the expression given in the question , it's "2u" but after matching the expression with identity , it is found to be "2ux".
⇒ x = 1 (∵ If x will be 1 , then 2ux = 2×u×1 = 2u)
⇒ x² = 1
∴ The number in the blank is 1.
Related Questions
5th grade math. correct answer will be marked brainliest
Answers
Answer:
4ft, 7 inches
Step-by-step explanation:
4 ft (48 inches), 7 inches
Can someone please help?
Answers
Answer:
it's the top right box
Step-by-step explanation:
start from the first box and count how many units was added
Planes A and B intersect. Which describes the intersection of plane A and line m? Oline k B m Olinen À point X O point W X 3 k Y Z
Answers
The intersection of plane A and line m can be describes as line m .
What is reflectional symmetry?Let's a plane. Consider a design or shape on that plane. Now consider an axis.
If we think of that axis as a mirror, and on the opposite side of that axis create the image of the considered shape, then if the shape's image looks exactly as the shape itself, therrefore that shape is called to have a reflectional symmetry.
Given that Planes A and B intersect.
We can see the two walls as planes in geometry.
A plane can be thought of as a wall or a floor of a room also a flat surface that has no thickness.
When two planes intersect, their intersection is a line.
Learn more about symmetry here:
https://brainly.com/question/7783612
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Use systems of linear equations solve x+2y=4
Must include;
Step to solve problem
Answers
Answer: y=2-2x
Step-by-step explanation:
7/12 3/7 in simplest form
Answers
Answer:
Both fractions are in their simplest forms.
Plz help ASAP plz help
Answers
Answer:
no solution for the answer
Carl is filling flowerpots with soil. Each flowerpot is a cylinder with a radius of 7cm and a height of 10 cm. If Carl has 24,000 cubic centimeters of soil, how many flowerpots can he fill? Explain.
Answers
Answer:
see below
Step-by-step explanation: 5 26 9 17
cylinder with a radius of 7cm and a height of 10 cm
find the value of each flower pot and divided it into 24000 cm³
flower pot = π r² h = π × 7² × 10 = π490 = 1539.38 cm³
24000 cm³ / 1539.38 cm³ = 15.59 flower pots
so Carl could only FILL 15 flower pots
Carl is filling flowerpots with soil. Each flowerpot is a cylinder with a radius of 7cm and a height of 10 cm. If Carl has 24,000 cubic centimeters of soil. So, Carl could only fill 15 flower pots.
What is the volume of a right circular cylinder?Suppose that the radius of considered right circular cylinder be 'r' units.
And let its height be 'h' units.
Then, its volume is given as:
[tex]V = \pi r^2 h \: \rm unit^3[/tex]
The cylinder with a radius of 7cm and a height of 10 cm.
The flower pot = π r² h
[tex]= \pi \times 7^2 \times h\\ = 490 \pi \\ = 1539.38 cm^3[/tex]
= 24000 cm³ / 1539.38 cm³
= 15.59 flower pots
So, Carl could only fill 15 flower pots.
Learn more about the volume of the cylinder here:
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Volume answer rn djdjd
Answers
Answer:
133.7π cm^3 or approximately 418.77430072 cm^3.
Step-by-step explanation:
For the cylinder half, use the formula: π*r^2*h, or pi times radius squared times height.
Since the diameter is 8, which means the radius is 4, and the height is 6, the volume of the cylinder would be 96π or 301.59289474...
For the cone on top, use the formula 1/3 (π*r^2*h), or one third pi times radius squared times height. Don't forget to calcuate the part in parentheses before dividing it by three.
Because the overall height was 13, you can subtract the 6 from the cylinder to get the cone's height. It has a height of 7 and a radius of 4 just like the cylinder. The volume of the cone is 112π/3 or 37.3π.
Now add both volumes together to get 133.7π cm^3 or approximately 418.77430072 cm^3.
Brenden spent 24 minutes playing a computer game. He stopped playing at 3:55 P.M. and went outside to ride his bike. What time did he start playing the computer game?
Answers
Answer:
3:31
Step-by-step explanation:
3 hours 55 minutes - 24 minutes = 3 hours 31 minutes
Answer:
3:31 PM
Step-by-step explanation:
55 - 24 = 31
So,
3:31 is the answer :)
Surface area of a solid figure can be found by multiplying the area of the base by the height of the figure.
True
O False
Answers
Answer:
Surface area of a solid figure can be found by multiplying the area of the base by the height of the figure.
it's false
Step-by-step explanation:
Answer:
False
Step-by-step explanation:
The set of life spans of an appliance is normally distributed with a mean y = 48 months and a standard deviation or
8 months. What is the z-score of an appliance that stopped working at 64 months?
Answers
Answer:
The set of life spans of an appliance is normally distributed with a mean µ= 48 months and a standard deviation σ= 8 months. ... Thanh finds that his grade on the test has a z-score of -2.5. ... are normally distributed, and the probability that the city gets more than 43.2 inches of rain in a year is given by P(z≥1.5)=0.0668.
Step-by-step explanation:
=============================================================
Explanation:
The raw score is x = 64, and we want to find its corresponding z score.
The mean and standard deviation are mu = 48 and sigma = 8 respectively.
The z score is...
z = (x-mu)/sigma
z = (64-48)/8
z = 16/8
z = 2
A z score of 2 means we're 2 standard deviations above the mean.
As the formula above implies, we find the difference from the raw score (x) to the mean (mu). Then we divide over sigma to find out how many sigma steps we have to take to go from mu to x.
A negative z score would indicate the raw score is below the mean.
3 (a - 1) + 31 - 11a = 4 ( 2a + 3)
Answers
Answer:
-⅖
Step-by-step explanation:
We need to simplify the given equation and find out the value of a , as ,
=> 3(a-1)+31-11a = 4(2a+3)
=> 3a -3+31-11a = 8a + 12
=> -8a -28 = 8a + 12
=> 16a = -28-12
=> 16a = -40
=> a = -2/5
• Hence the value of a is -⅖ .3 ( a - 1 ) + 31 - 11a = 4 ( 2a + 3 )
____________________Solution :-Given Information :-Equation ➢ 3 ( a - 1 ) + 31 - 11a = 4 ( 2a + 3 )To Find :-The value of 'a'Calculation :-⇒ 3 ( a - 1 ) + 31 - 11a = 4 ( 2a + 3 )
Opening the brackets and multiplying the terms, We get,
⇒ 3a - 3 + 31 - 11a = 8a + 12
⇒ -8a + 28 = 8a + 12
⇒ 8a + 8a = - 28 - 12
⇒ 16a = 40
Transposing 16 to Right Hand Side, We get,
⇒ a = [tex] \sf \frac{40}{16} [/tex]
⇒ a = [tex] \sf \frac{-2}{5} [/tex]
____________________Final Answer :-The value of 'a' is [tex] \bf \frac{-2}{5} [/tex]____________________can someone help me :(
Answers
Answer:
A is the correct answer
.......................
Answer:
A. y+116+30=180
Step-by-step explanation:
A straight angle is 180°.
all the given angles make up a straight angle, so they add to 180°.
-12-(-7)+2+(-4)
/............
Answers
Answer:
-7
Step-by-step explanation:
so -12--7+2+-4 is the same as -12+7+2-4. Simplify this to get -5+-2. We know that -5+-2 is equal to -7.
If this helps please mark as brainliest
Haley is going on a vacation to Australia. Her flight leaves at 10:20 A.M. It takes 1 hour and
20 minutes to get to the airport, and Haley wants to be at the airport 55 minutes before her
flight leaves. What is the latest time that Haley can leave for the airport?
HELPPPPP FACTUAL ANSWERS
Answers
Answer:
8:05 am is the time she will have to leave her house to get to the airport on time.
Step-by-step explanation:
First, subtract 55 minutes from 10:20.
10:20 - 20 = 10:00
10:00 - 35 = 9:25
This is the time she wants to arrive. 9:25
Now, we have to subtract an hour and 20 minutes
9:25 - 1:00 = 8:25
8:25 - 20 = 8:05
Hope this helped and have a great day! :)
A recipe uses 1 ¼ cups of milk to make 10 servings. If the same amount of milk is used for each serving, how many servings can be made using 2 gallons of milk?
Answers
Answer:
128 is your answer
Step-by-step explanation:
1 gallon of milk will make 128 servings.
100% Correct hope this helps ツ
Answer:
25
Step-by-step explanation:
16 cups = 1 gallon
1 1/4 * 12 = 15 (12 cups)
15 * 2 = 30 (24 cups)
30 + 1 1/4 = 31 1/4 (25 cups)
Brainliest please UwU
PLEASE PLEASE HELP
what is the slope of the line
A. 0
B. 1
C. -2
D. no slope
Answers
Answer:
a.0
Step-by-step explanation:
The slope of any horizontal line is 0
Answer:
A, 0
Step-by-step explanation:
The slope of a line is Change in Y / Change in X. This line is parallel to X-axis, meaning the Y will always be the same. This means that the change in y is 0, meaning the slope is 0 / Change in X, which is 0.
What is the absolute value of a number?
Answers
Answer:
It is the distance from the zero on a number line. Also, it is never negative.
Step-by-step explanation:
What is the distance between (2, 5) and (2, -7)?
Question 1 options:
2
5
12
14
Answers
Answer:
12
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
Mona has a bag containing 4 red marbles, 12 green marbles, and 8 black marbles. Without looking, she pulls out one marble from the bag and places it in an empty jar. She then pulls a second marble from the bag and places it in the jar. WHat is the probability that she will have 2 green marbles in the jar?
A. 12/24 x 11/23
B. 12/24 x 12/24
C. 1/12 x 1/11
D. 12/24 x 12/23
Answers
4+j3 amps and resistance of 5-j3 ohms what is the voltage of the circuit
Answers
Answer:
V = 29 + j3
Step-by-step explanation:
4+j3 amps and resistance of 5-j3 ohms what is the voltage of the circuit
V = IR I = 4+j3 amps R = 5-j3 ohms
V = 4+j3 × 5-j3
V = [4 × 5]+[j3 × -j3] + [4 × -j3] + [j3 × 5]
V = 20 + (-j²)9 + (-j12) + j15
V = 20 - 9 + j3 j3 × -j3 = 9 not -9 j = -1 j × j = -1 not 1 my mistake
V = 11 + j3 WRONG
my daughter's old TI 84 Plus Silver Edtion calculator got 29+j3
0.125,0.25,0.5,1 sequence
Answers
Answer:
1,2,4,8,16,32
Step-by-step explanation:
power of two sequence
A circle has a diameter of 10 centimeters.
What is the best approximation of its area?
Use 3.14 to approximate for π.
15.7 cm²
31.4 cm²
78.5 cm²
314 cm²
Answers
Answer:
78.5 (please put brainliest)
Step-by-step explanation:
r = diameter / 2 = 5
area = π * r^2 = 25 * 3.14 = 78.5
Answer:
78.5 m^2
Step-by-step explanation:
What is the volume of a sphere with a radius of 3.1 cm, rounded to the nearest tenth
of a cubic centimeter?
Answers
Rounded to the nearest tenth It’s 124.8
Find the area of each figure. Round to the nearest tenth. Use 3.14 or 22/7
a. 18.8
b.9.4
c. 113
d. 28.3
Answers
Answer:
d. 28.3
Step-by-step explanation:
Given
Radius ( r) = 3 m
Area of the circle
= π r²
= 3.14 * 3* 3
= 28.26
= 28.3 ft²
What is 8% of 200?
4
16
25
Done
Answers
Answer:
16
Step-by-step explanation:
8% of 200 is 16
Answer: 16
Explanation: That's an i-Ready Diagnostic!! Heh...
Help me wit this ASAP!!!!!!!!!!!!!!
Answers
Answer:
Hi, there your answer will be 176pi ft^2
Step-by-step explanation:
pi(8)(14)+pi(8)^2
112pi+64pi
176pift^2
Hope this helps if you still don't understand just ask me and I can help you
Hank wants to rent a bike. Bike rentals cost $1.25 per hour plus a one-time
fee of $3. Which equation represents the relationship between the number
of hours h Hank rents the bike and the total cost c?
Answers
Answer:
c = 3 + (1.25 x h)
A. 35
B. 96
C. 51
D. 80
Answers
Answer:
Its D
Step-by-step explanation:
Does anybody know the answer please.
Answers
Answer:
The sign of each y-coordinate changed.
Step-by-step explanation:
This was a reflection over the x-axis.
If you look at point F, it is (-5, -1) the corresponding point F' is (-5,1). Notice the numerical values of x and y are the same, but the sign of y flipped from negative to positive. The other four points all follow the same pattern.