Which of the following expressions is correctly written in scientific notation?
Answers
Answer:
The 3rd choice.
Step-by-step explanation:
The third choice has what it takes to be a scientific notation.
Related Questions
Find the midpoint of the segment with endpoints:
(9,8) and (3,5).
pls pls pls pls help!!!! for geometry final
Answers
Answer:
Step-by-step explanation:
here x1=9 y1=8 x2=3 y2=5
midpoint=(x2+x1/2 , y2+y1/2)
=(3+9/2 , 5+8/2)
=(12/2 , 13/2)
=(6 , 13/2)
WILL GIVW BRAINLIEST AND THANKS. find the circumference
Answers
Answer:
69.115
Step-by-step explanation:
( 2+ 3y)(2-3Y) pls help meeeeeeeeee
Answers
Answer:
4-9y^2
Step-by-step explanation:
(2+3y)(2-3y)
2*2
2*-3y
3y*2
3y*-3y
4-6y+6y-9y^2
4-9y^2
Answer:
[tex]4−9 {y}^{2} [/tex]
Step-by-step explanation:
[tex](2+3y)(2−3y)[/tex]
[tex]2(2−3y)+3y(2−3y)[/tex]
[tex]2 \times 2+2(−3y)+3y(2−3y)[/tex]
[tex]2 \times 2+2(−3y)+3y \times 2+3y(−3y)[/tex]
[tex]4−6y+6y−9 {y}^{2} [/tex]
[tex]4+0−9 {y}^{2} [/tex]
[tex]4−9 {y}^{2} [/tex]
Hope it is helpful...Solve for x: 1.5x - 8 = 7
PLS ANSWER
Answers
Answer:
x = 10Step-by-step explanation:
1.5x - 8 = 7
=> 1.5x = 7 + 8
=> 1.5x = 15
[tex] = > \frac{15x}{10} = 15[/tex]
[tex] = > x = 15 \times \frac{10}{15} [/tex]
=> x = 10 (Ans)
Answer:
x=10
Step-by-step explanation:
Simplifying
1.5x + -8 = 7
Reorder the terms:
-8 + 1.5x = 7
Solving
-8 + 1.5x = 7
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '8' to each side of the equation.
-8 + 8 + 1.5x = 7 + 8
Combine like terms: -8 + 8 = 0
0 + 1.5x = 7 + 8
1.5x = 7 + 8
Combine like terms: 7 + 8 = 15
1.5x = 15
Divide each side by '1.5'.
x = 10
Simplifying
x = 10
Jacob travelled 708 km on a bus in 8 hours. Alissa travelled 496 km on a
train in 5 hours. What was the speed per hour of the faster vehicle?*
99.2 km/h
62.0 km/h
141.6 km/h
88.5 km/h
Answers
Answer:99.2
Step-by-step explanation:
Speed = distance÷time
496÷5=99.2
I NEED AN ANSWER ASAP!!!
Answers
What is the Value of X please help!
Answers
Answer:
x = 7cm
Step-by-step explanation:
[tex]\frac{36}{6} = \frac{42}{x}\\\\6 = \frac{42}{x}\\\\x = \frac{42}{6} = 7[/tex]
IMA In a certain Algebra 2 class of 23 students, 7 of them play basketball and 12 of them play baseball. There are 9 students who play neither sport. What is the probability that a student chosen randomly from the class plays basketball or baseball
Answers
Answer:
19/28 or about 68%
Step-by-step explanation:
7 + 12 + 9 = 28
7 + 12/28
19/28
Write the following equation in the general form Ax + By + C = 0.
2x + y = 6
Answers
Answer:
2x + y - 6 = 0
Step-by-step explanation:
Here, C represents a constant value. So the only thing we really need to do here is subtract 6 because 6 is a constant value and because we would get 0 on the right side. I know this isn't a very good explanation so feel free to ask me any questions that you may have.
I need help ill give you 15 points. no links or I will like report you.
Answers
all real numbers are greater than or equal to 2
Joseph is 5 feet 9 inches tall, and Roberto is
6 feet 4.5 inches tall. What is the difference in
height, in inches, between Roberto and
Joseph?
Answers
Answer:
7.5 inches
Step-by-step explanation:
If he is 5 feet 9 inches tall and Roberto is 6 foot 4.5 inches tall just count the inches until you get to 6"4
Page
1) In which quadrant do the following point lie?
1) (-5,4), (ii)(4,-2) (iii) 7,2) (iv) (-3,-7)
Answers
Answer:
Step-by-step explanation:
(-5,4)=since x coordinate is negative and y coordinate is positive it lies on 2 nd quadrant.
(4,-2)=x coordinate is positive and y coordinate is negative so it lies on 4 th quadrant
(7,2)=both x coordinate and y coordinate are positive so they lie in 1 st quadrant.
(-3,-7) =both x and y coordinate are negative so they lie on 3 nd quadrant
100 POINTS IF YOU GET IT RIGHT
Use the Rational Root Theorem to list all possible rational roots of the polynomial equation
x^3 – 5x^2 - 4x + 8 = 0. Do not find the actual roots.
Answers
The person above this should have the answer. It seems like nobody else is answering.
Which of the following ordered pair are equal. a) (6,2) and (2,6)
Answers
SOMEONE HELP ME PLEASE
How many people worked in service jobs?
A. 1,898.40
B. 18,984
C. 189,840
D. 1,898,400
E. 18,984,000
Answers
Answer:
number of people work in service jobs
[tex]949 \: 200 \times \frac{20}{100} \\ 189 840[/tex]
answer is option C
Which of these ordered pairs is a solution to the linear inequality y ≤ 2x + 5?
(–2, 5)
(–2, 4)
(0, 5)
(1, 9)
Answers
Step-by-step explanation:
(-2, 5)=35.00 Php agency daily expensive weekly 30-40-70=13858
The height, h metres, of a springboard diver above the surface of the water t seconds after she leaves the board is given by h=-5t-12+7. Find the maximum height reached by the diver? How long does it take for the diver to reach maximum height? Find the height of the diving board?
Answers
Answer:
[tex]h_{max} = 14.2m[/tex]
[tex]t = 1.2[/tex]
The height of the diver is 7m
Step-by-step explanation:
Given
[tex]h(t) =-5t^2 + 12t + 7[/tex]
Solving (a): The maximum height reached
First, we calculate the time to reach the maximum height using:
[tex]t = - \frac{b}{2a}[/tex] --- maximum of a function
Where
[tex]a = -5; b = 12; c = 7[/tex]
So, we have:
[tex]t = -\frac{12}{-2 * 5}[/tex]
[tex]t = \frac{12}{10}[/tex]
[tex]t = 1.2[/tex]
So, the maximum height is:
[tex]h(t) =-5t^2 + 12t + 7[/tex]
[tex]h(1.2)=-5 * 1.2^2 + 12 * 1.2 + 7[/tex]
[tex]h(1.2)=14.2[/tex]
Hence:
[tex]h_{max} = 14.2m[/tex]
Solving (b): Time to reach maximum height
This has been calculated in (a)
[tex]t = 1.2[/tex]
Solving (c): Height of the board.
This can be calculated by setting [tex]t =0[/tex] --- i.e. the height of the diver before diving
So, we have:
[tex]h(t) =-5t^2 + 12t + 7[/tex]
[tex]h(0) = -5 * 0^2 + 12 * 0 + 7[/tex]
[tex]h(0) = 7[/tex]
find the outputs.. please help
Answers
Answer:
see below
Step-by-step explanation:
The steps are +2 then *4 then -8 then ÷2
Input is 5
5 +2 =7 *4 = 28-8 = 20 ÷2 = 10 Output is 10
Input is 9
9 +2 =11 *4 = 44-8 = 36 ÷2 = 18 Output is 18
Input is 14
14 +2 =16 *4 = 64-8 = 56 ÷2 = 28 Output is 28
Input is 18
18 +2 =20 *4 = 80-8 = 72 ÷2 = 36 Output is 36
Input is 23
23 +2 =25 *4 = 100-8 = 92 ÷2 = 46 Output is 46
Input is 7.5
7.5 +2 =9.5 *4 = 38-8 = 30 ÷2 = 20 Output is 20
Input is 11.54
11.54 +2 =13.54 *4 = 54.16-8 = 46.16 ÷2 = 23.08 Output is 23.08
Answer:
Output:
5 + 2 x 4 - 8 ÷ 2 = 9
9 + 2 x 4 - 8 ÷ 2 = 13
14 + 2 x 4 - 8 ÷ 2 = 18
18 + 2 x 4 - 8 ÷ 2 = 22
23 + 2 x 4 - 8 ÷ 2 = 27
7.5 + 2 x 4 - 8 ÷ 2 = 11.5
11.54 + 2 x 4 - 8 ÷ 2 = 14.54
Pls help ASAP!I will mark u brainliest, and pls answer correctly or I will report u
A printing company is enlarging the image on a postcard to make a greeting card. The enlargement of the postcard’s rectangular image is done using a scale factor of 125%. Be sure to show all other related math work used to answer the following questions.
(a)Represent a scale factor of 125% as a fraction and decimal.
(b)The postcard’s dimensions are 7 inches by 5 inches. What are the dimensions of the greeting card?
(c)If the printing company makes a poster by enlarging the postcard image, and the poster’s dimensions are 28 inches by 20 inches, represent the scale factor as a percent.
(d)Write an equation, in terms of the scale factor, that shows the relationship between the areas of the
postcard and poster. Explain your equation.
(e)Suppose the printing company wanted to start with the greeting card’s image and reduce it to create the postcard’s image. What scale factor would they use? Represent this scale factor as a percent.
(f). In math class, students had to create a scale drawing that was smaller than the postcard image. Azra
used a scale factor of 60% to create the smaller image. She stated the dimensions of her smaller image as 4 1/6 inches by 3 inches. Azra’s math teacher did not give her full credit for her answer. Why? Explain Azra’s error, and write the answer correctly
Answers
Answer:
Step-by-step explanation:
Does anyone know this ?
Answers
116 / 2 = 58 :)
Check: 58 + 58 + 64 = 180
Graph the compound inequality on the number line. x 3<=-4 or x>= 3
Answers
Answer:
Is included in the photo
Step-by-step explanation:
Hope I helped, have a nice day :)
How many degrees are in the angle formed by the hands of the clock?
A, 9
B, 90
C, 180
D, 270
Answers
Answer:
90°
Step-by-step explanation:
15 mins = 1/4 of full circle
1/4 of 360 = 90
90°
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Answer:
B, 90
Step-by-step explanation:
a right angle is exactly 90 degrees
PLLEASEEE HELPPP!!! ILL BRAINLIST.
2) Using Pythagoras’ Theorem, which is the correct statement (A, B or C)
that describes the relationship between the three side lengths in this
triangle? Explain your choice.
A 262 = x2 + 242 B 242 = x2 + 262 C x2 = 242 + 262
Answers
Answer:
The answer is most likely C.
Step-by-step explanation:
Using the Pythagoras' Theorem, c^2 = a^2 + b^2
I'm not sure if 242 and 262 were 24^2 and 26^2 respectively but I'm using 24^2 and 26^2 for this answer.
The c^2 is in fact x^2 where x is the hypotenuse.
However, the answer could be A if x has to be whole number. In this case, x^2 + 24^2 = 26^2
x^2 = 26^2 - 24^2 = 100
x = sqrt (100) = 10
Which of the following is an arithmetic sequence?
A. -4,-2, 0, 2, ...
B. -8, -4,-2, -1, ...
C.-4, -3, -1, 2, ...
D. -4, 0, -4, 0, ...
Answers
is equal to zero if. a) a, b, c are in arithmetic progression ... progression. d) α is a root of the equation ax2 + bx + c = 0.Missing: 4,
Explanation:
This is because we are adding the same thing to each term to get the next term. That is the common difference d = 2
second term = (first term)+d = -4+2 = -2third term = (second term)+d = -2+2 = 0fourth term = (third term)+d = 0+2 = 2Sketch a graph of
y=3(x − 2)(x + 1) (x – 4)
ASAPP!
Answers
Answer:
Use the distributive property to multiply 3 by x−2.
y=(3x−6)(x+1)(x−4)
Use the distributive property to multiply 3x−6 by x+1 and combine like terms. y=(3x 2 −3x−6)(x−4)
Use the distributive property to multiply 3x 2 −3x−6 by x−4 and combine like terms. y =3x 3 −15x 2 +6x+24
Step-by-step explanation:
I also up a link there of a graph. Please tell me if you can open it. Hope this helps! :P
Helen rented a kayak at the lake. There is a charge of $10 as an initial fee and then $2 an hour for every hour that she uses the kayak. If the total charge is $22 , how many hours did she kayak?
Answers
Answer:
She kayaked for 6 hours.
Step-by-step explanation:
If $10 is the initial fee, subtract $22 - $10 = $12.
If it charges $2 per hour, divide $12 by $2 which equals 6 hours.
Answer:
6 hours
Step-by-step explanation:
Cost = fee + charge per hour * number of hours
22 = 10 +2h
Subtract 10 from each side
22-10 = 10+2h-10
12 = 2h
Divide
12/2 = 2h/2
6 = h
Help
Will give the
Brainlist
Answer
:-)))
Answers
Help
Will give
Brainlist
:))).
Answers
thanks me later, pa brainliest po ako
Can someone help me please
Answers
Answer:
Here you go
Step-by-step explanation:
BTW what is meant by point in the last blank?
Answer:
equation y = 3x-1
slope = 3
about the point blank I'm not sure what it is asking for
can someone please identify one solution please?
Answers
y ≥ 2x - 3