Answer:
3.456 x 10^11
Step-by-step explanation:
= 3.456 × 10¹¹
scientific notation
= 3.456e¹¹
scientific e notation
= 345.6 × 109
engineering notation
billion; prefix giga- (G)
= 3.456 × 10¹¹
standard form
= 345600000000
(real number)
==============================================
Explanation:
Place the decimal point between the first two nonzero digits. So we'll place the decimal point between the 3 and 2 to get 3.245
Now ask yourself "how many spots to the right must I move the decimal point to get back to 324.5?" The answer is "2 spots to the right"
That "2" from "2 spots to the right" is the exponent over the 10.
So that's how we get to the answer 3.245 * 10^2
Using your calculator, you should find that 3.245 * 10^2 = 324.5
--------------
Side note: if the exponent over the 10 is negative, then the decimal point will move left that number of spaces.
For example, 3.2 * 10^(-2) = 0.032 showing it has moved 2 spaces to the left.
A Girl Scout troop is selling varieties of cookies. The troop earns a profit of $0.40 for every box of cookies sold. Write a equation to show the profit, P, for any number of boxes sold, b.
Answer:
P=0.40b
Step-by-step explanation:
For every box(b) sold, the profit(P) will increase by 0.40.
Eighteen students passed the Science Test. If 18 students is 72% of the total number of students in the class, how many students are in the class?
Answer:
There are 25 students in the class.
Step-by-step explanation:
Let the total number of students in the class= x
No. of students who passed the test = 18 = 72% of x = 72x/100
Therefore, 72x/100=18
=72x=18*100=1800
=x=1800/72= 25 students.
Hence, total number of students in the class= 25 students
Help please don’t understand
Answer:
x = 105
Step-by-step explanation:
75 and x are on a line that forms 180 degree.
to find x, substract 75 from 180
x = 180-75
40% of 25 is?.. help!
Answer:
40% of 25 is 10
Step-by-step explanation:
Answer:
10 is the answer
Step-by-step explanation:
.40 times 25 is 10 :) if you could mark brainliest that would be great!
Guys please please help me with this question
The table models how the population of a city has changed over time. What does the y-intercept represent?
(5 pts)
Years since 1985
0
5
10
15
20
25
30
35
40
Population
122,000 119,000 118,000 119,000 122,000 127,000 134,000 143,000 154,000
The y-intercept represents the initial population of the city
What is the y-intercept?The y-intercept is the point where the line on a graph crosses the y-axis. The y-intercept is the value of the data set when x is zero. It is the initial population of the city. The y-intercept in this question is 122,000.
To learn more about y-intercept, please check: https://brainly.com/question/21527145
#SPJ1
A circle is to be cut from a 12 ft square board. What will be the area, in square feet, of the inscribed circle? Leave your answer in terms of π.
Answer:
3π sq.feet
Step-by-step explanation:
Area of the square = L²
L is the length of the square
Given
Area of the square = 12 ft square
12 = L²
L = √12
L = 2√3 feet
Since the circle is inscribed in the square, the length of the square will be the diameter of the circle;
Area of the circle = πd²/4
Area of the circle = π(2√3)²/4
Area of the circle = 12π/4
Area of the circle = 3π sq.feet
helppppp i need to round the answer to one decimal place
Answer:
4.5 , and my answer needs to be 20 characters long, but I'm pretty sure it's 4.5
3 feet
4 feet
inches
6 inches
Is Inches
What is the volume, in cubic feet, of the
cement used to make the steps? Show or
explain all of the steps you used to determine
your answer.
Answer: 12 for the main square
Step-by-step explanation:
take the 4 and the 3 and multiply it, makes 12. you see how each stair is 6 inches and there is 3 full steps which makes it 1.50 feet. 12 x 1.50 is 18. that makes your main square. I'm sorry but I cant really help you with the steps but that was also confusing to me.
j² - jk +k²= 7
J⁴ +j²k² + k⁴ = 133
Answer: You can search it up...
Step-by-step explanation: Have a nice day!
Gloria placed 2 apples into each of 14 boxes. Let a represent the total number of apples she had. Which of the following best represents this situation?
A
B
C
D
Answer:
A. a=14×2
Step-by-step explanation:
Since there are 2 apples per box, you just need to multiply to get your answer which would be 28.
help pls
Which of the following statements does NOT represent the data?
A. The scores in Mrs. Ruiz’s class have less variability than the scores in Mrs. Moore’s class.
B. The median of Mrs. Moore’s class is equal to the first quartile of Mrs. Ruiz’s class.
C. The interquartile range of both classes is equal.
D. The scores in Mrs. Moore’s class have a greater spread than the scores in Mrs. Ruiz’s class.
Pls pls help I don’t understand
Answer:
[tex]Given~quadratic ~function : 1=x^2-6x[/tex]
[tex]here,a=1,b=-6[/tex]
[tex]so, the~numbers~which ~we ~need ~to ~add....[/tex]
➜ [tex](\frac{b}{2} )^2[/tex]
➜ [tex]=(\frac{-6}{2})^2[/tex]
➜[tex]=(-3)^2[/tex]
➜ [tex]=9[/tex]
---------------------
hope it helps...
have a great day!!
Pls help will mark brainliest
Find the solutions to the system:
x2 + y2 = 9
x+y = 3
A. (-3,0),(3,0)
B. (0,3), (3,0)
C. (9.0),(6,-3)
D. (0,9), (3,-6)
E. (-6,3), (3,0)
Answer:
[tex]x = 3 - y\\ {(3 - y)}^{2} + {y}^{2} = 9 \\ \\ y = 0 \: \: x = 3 \\ y = 3 \: \: \: x = 0\\ \\ \\ b \: is \: corret \: answer[/tex]
Mary wears an outfit everyday that consists of one top one bottom and one scarf.Her wardrobe consist of 3 bottoms 5 tops, and 2 scarfs. how many different outfits can Mary put together?
Answer:
30
Step-by-step explanation:
You simply just mutliply them
3*5*2=30
Which is the equation of a hyperbola with directrices at x = ±2 and foci at (5, 0) and (−5, 0)?
The required equation of the hyperbola is expressed as
[tex]\frac{x^2}{10}- \frac{y^2}{15}=1 \\[/tex]
The standard form for calculating the equation of a parabola along the x-axis is expressed as:
[tex]\frac{(x-k)^2}{a^2}-\frac{(y-h)^2}{b^2} = 1 \ ............. 1[/tex] where:
(h, k) is the center
(k±c, h) are the foci
[tex]x=h\pm\frac{a^2}{c}[/tex] is the directrix
From the question given, we can see that foci = (±5, 0)
k±c, h = ±5, 0
k = 0
h = 0
c = 5
From the directrix,
[tex]x=h\pm\frac{a^2}{c}\\x =0\pm\frac{a^2}{5}\\\pm2 = \pm\frac{a^2}{5}\\a^2 = 10\\[/tex]
Also, we need to know that;
a²+b² = c²
10 + b² = 5²
b² = 25 - 10
b² = 15
Substituting the gotten values into the equation of a hyperbola;
[tex]\frac{(x-0)^2}{10}- \frac{(y-0)^2}{15} =1\\\frac{x^2}{10}- \frac{y^2}{15} =1\\[/tex]
This gives the required equation of the hyperbola
Learn more on the equation of hyperbola here: https://brainly.com/question/20409089
Answer:
The answers are between C and D
Step-by-step explanation:
It can't be A or B because they create a horizontal hyperbola, when the directrices are vertical.
use distributive property to write an equivalent expression 3(2x+3y)
Answer:
6x + 9y
Step-by-step explanation:
3 * 2x = 6x
and
3 * 3y = 9y
then combine them with a plus sign
Marcia sells bracelets. She sells each one for $1.50. This year she spent $32.76 on supplies. At the end of the year, she made $292.74 in profit. Write an equation to represent this situation.
Answer:
$1.5b - $32.76 = $292.74
Step-by-step explanation:
Profit = total revenue - total cost
total revenue = price per unit x total unit of bracelet sold
total revenue = $1.50 x b = $1.50b
b = total units of bracelets sold
total cost = $32.76
$1.5b - $32.76 = $292.74
Jess says that two of the three points below are on a line through the origin.
(3.8), (6, 21), and (9, 24)
Part A
Which two points could lie on the same line through the origin? Explain why. Explain why
the third point could not.
* I will give brainliest*
Answer:
(3, 8) and (9, 24) lie on the same line through the origin.
because (9, 24) is the result of dilatation of (3, 8) with scale factor 3.
(6, 21) is not the result, because 21 ≠ 2×8, even 6 = 2×3
Find the missing value of x and y.
Answer:
x = 9.7 y = 11.4
Step-by-step explanation:
tan 45 = x/6
x = tan 45 (6)
= 9.7
c² = a² + b²
c² = 9.7² + 6²
= 94.09 + 36
= 130.09
= 11.4
Carmela made $270 working at a pet store last week. she worked a total of 30 hours. How much money did carmela make per hour?
Answer:
Carmela made $9 per hour
270÷30=9
Hope this helps !
Find the image of the given point under the given translation. PLEASE HELP! WILL GIVE BRAINLIEST ANSWER !!!
Answer:
(0,-3)
Step-by-step explanation:
PLZ HELP PLZ PLZ ILL MARK AS BRAINLIESTT!!!
Answer: D lol-
Step-by-step explanation:
Answer: 37
Step-by-step explanation:
25 x.75 = 18 but x 2 = 37.5
The product of a number n and 8 is 32
50 POINTS WILL MARK BRAINLIEST
if the question is finding the area then the answer would be 89m^2
HELP PLEASE THANK YOU
Answer:
4(x+2)^2
(2x+4)^2
4x^2 + 16x + 16
Exercise 5:It will be rectangle the JKL triangle, Show all your work and explain its answer. PLZZZZ HELP AND NO OBSURD ANSWER I REALLY NEED THIS ANSWER AND SHOW WORK PLZ THX.
Answer:let me get
uhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
Step-by-step explanation:
Here is a rectangular prism. 2.4 in 1.5 in 8 in
1. What is the volume of the prism?
Hello!
The answer is 28.8, When finding the Volume of a shape, you multiply all numbers.
out of 40 students in class eight 20% will be absent how many students were present
Answer:
32 would be present and 8 would be absent
Step-by-step explanation:
A linear equation, in terms of x, is correctly solved. The final step in the solution process shows that there are infinitely many solutions of the equation. Which could be the final step? A. x = 0
В. 312 = 427
C. 5,678 = 5,678
D. x = 100,000,000
Answer:
C)
Step-by-step explanation:
infinite number of solutions means the left side equals the right side of the equation
no solution means the left side does not equal the right side
x = {whatever} means there is one solution
