Answer:
It will take 500 seconds before the scientist sees the solar flare
Step-by-step explanation:
From the question, the Earth-Sun distance is 1.5×10¹¹ m and the speed of light is approximately 3×10⁸ m/s.
Now, we are to determine how long it will take before a scientist sees a solar flare after it has occurred. That is, we are to determine time.
From the formula
Speed = Distance / Time
Time = Distance / Speed
From the question,
Distance = 1.5×10¹¹ m
and speed = 3×10⁸ m/s
Therefore,
Time = 1.5×10¹¹ m / 3×10⁸ m/s
∴ Time = 0.5 × 10³ s
Time = 500 s
Hence, it will take 500 seconds before the scientist sees the solar flare.
The height, h, in feet of the tip of the minute hand of a wall clock as a function of time, t, in minutes can be modeled by the equation h = 0.75 cosine (StartFraction pi Over 30 EndFraction (t minus 15)) + 8. Which number (from 1 to 12) is the minute hand pointing to at t = 0?
Answer:
C. 9
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
Michelle kayaked 3.22 miles on monday. She kayaked three more miles on tuesday than wendsday. She traveled one mile less on wendesday than she did on tuesday. How many miles did she kayak over the three days?
Answer:
11.66
Step-by-step explanation:
Linda has 57 coins consisting of nickels, dimes, and quarters. She has twice as many dimes as nickels. If the coins are worth a total of $7.25, write system of equations is used to determine how many of each coin Linda ha
Answer:
64.25
Step-by-step explanation:
57+7.25=64.25
ASAP ASAP ASAP
help me please
Answer:
The answer is b
Step-by-step explanation:
Answer:
B; 22.75 square meters
Step-by-step explanation:
I got it correct. Trust me.
What is the value of this expression -4.2(0.35-3.5)
Enter your answer in the box as a decimal
Answer:
13.23
Step-by-step explanation:
Answer: When we use the order of operations to solve this expression we get the Answer 13.23 Hope this helps
Step-by-step explanation:
-6=v-19w solve for v
Si al triple del cuadrado de un número se le suma siete veces el mismo número se obtiene por resultado 10. ¿Cuál es ese número?
Answer:
The value of the number is either 1 or -10/3
Step-by-step explanation:
If the same number is added to triple the square of a number seven times, the result is 10. What is that number?
Let the number = x
Therefore, we have;
3·x² + 7·x = 10
Therefore, we have;
3·x² + 7·x - 10 = 0
Dividing by 3 gives;
x² + 7/3·x - 10/3 = 0
Factorizing gives;
(x - 1)·(x + 10/3) = 0
x = 1 or -10/3
The number is either 1 or -10/3.
Kayla and her children went into a restaurant and she bought $63 worth of hotdogs
and tacos. Each hotdog costs $3.50 and each taco costs $4. She bought 3 more
hotdogs than tacos. Write a system of equations that could be used to determine the
number of hotdogs and the number of tacos that Kayla bought. Define the variables
that you use to write the system.
Answer:
I think the equation would be 3.5x-4y=63
x=10
y=7
Step-by-step explanation:
in what quadrant can you find the point (-5,4)
Answer:
Quadrant II
General Formulas and Concepts:
The top right square of the Cartesian Plane is the First Quadrant.
The top left square of the Cartesian Plane is the Second Quadrant.
The bottom left square of the Cartesian Plane is the Third Quadrant.
The bottom right square of the Cartesian Plane is the Fourth Quadrant.
Read the Cartesian Plane counterclockwise starting from the top right.
Step-by-step explanation:
Step 1: Define
(-5, 4)
x = -5
y = 4
Step 2: Find
We know since x = -5, our point is either going to be in Quadrant II or IIISince y is positive (4), it will go up, meaning that the point will be in Quadrant III NEED THE ANSWER PLEASE
Answer:
Not a function because some x values have multiple y values
Step-by-step explanation:
The meaning of a function is that an x value can only have on y value. If we were to pass a vertical line through this graph, we would find that about 2 points would be hit every time. This tells us that the x values have multiple y values and it's not a function.
I NEED HELP ASPS PLZZ
Answer:
The answer would be C
Step-by-step explanation:
If you take 24 and divide 2 you get 12 so 12 times 2 would be 24.
Graph f(x)=−0.25x+4.
Use the line tool and select two points to graph the line.
My graph only goes from 1-10!
the sum of three and number x is 20.
Answer:
x=17
Step-by-step explanation:
What does the solution of a linear inequality represent?
Find the product.
(9a^2 +8b) (a^2 - b)
Answer:
9a4−a2b−8b2
Step-by-step explanation:
=(9a2+8b)(a2+−b)
=(9a2)(a2)+(9a2)(−b)+(8b)(a2)+(8b)(−b)
=9a4−9a2b+8a2b−8b2
y=x^2-8 is linear or nonlinear
Answer:
Nonlinear.
Step-by-step explanation:
Slope-Intercept Form: y = mx + b
m - slope
b - y-intercept
We notice that if the line is linear, x will NOT go over a degree of 1.
x² is a quadratic function, and its slope is not proportional like a linear line.
I’ll mark brainliest!
Please help
Answer:
-6
Step-by-step explanation:
because the last number in the slope intercept form equation is always the y intercept
Answer:
y-intercept = -6Step-by-step explanation:
[tex]y = -4x -6[/tex]
Let x equal 0
[tex]y= -4(0) -6\\\\y =0-6\\\\y = -6[/tex]
please helppppp me i need answers really fast I'm so confused!! i'll give brainliest to the correct answer
Find the values of x and y.
A. x = 129, y = 51
B. x = 51, y = 129
C. x = 66, y = 17
D. x = 17, y = 66
Answer:
C
Step-by-step explanation:
129=2x-3
132=2x
x=66
129+3y=180
180-129=3y
51=3y
y=17
Two angles are supplementary. If one angle measures 46 degrees, how many degrees are in the other angle? *
Answer:
134
Step-by-step explanation:
180-46=134
1. (02.01 LC)
Simplify (4.5)(5)(-2).
Answer:
-45
Step-by-step explanation:
i took the test and it was right
At the same time a 12-foot pole casts an 18-foot shadow, a nearby tree casts a 30-foot shadow. How tall is the tree in feet?
Answer: 20 Feet
Step-by-step explanation:
Answer:
45ft
Step-by-step explanation:
This is just a ratio.
12:18
30:?
30/12=2.5
so do, 18*2.5=45
so, the tree is 45 ft
You spin the spinner shown below once. Each sector shown has an equal area. What is P(beaver ) P(beaver)start text, P, left parenthesis, b, e, a, v, e, r, end text, right parenthesis? If necessary, round your answer to 2 22 decimal places.
Answer:
0.8
Step-by-step explanation:
If you look at the wheel it has a total of 5 sections and 4 of the sections are beaver.
Therefore, 4/5 = 80% or 0.8
Answer:
it was 1/3
Step-by-step explanation:
i know because i got it right on khan academy adn sorry if im am late
Mary sells lemonade, and she sells 10 cents from ever cup she sells to charity. The cups of lemonade are 45 cents. One day she made $17.10. How much money did she to charity that day.
Answer:
$3.80
Step-by-step explanation:
Given that:
One cup of lemonade is sold at 45 cents.
Total money made = $17.10
Number of cups of lemonade sold can be found by dividing the total money made with the sale price of one cup of lemonade.
Number of cups of lemonade sold = [tex]\frac{\$18.10}{45\ cents} = \frac{\$18.10}{\$0.45} =38[/tex]
For each cup sold, 10 cents are donated.
Total money donated = 38 [tex]\times[/tex] 10 = 380 cents = $3.80
Therefore, the answer is:
Total money donated by Mary is $3.80
GIVING BRAINLIST PLEASE HELP
In the figure at the right, if PQ is perpendicular to QR,
then a + b + c + d =?
P
A) 180°
B) 225°
C) 270°
D) 360°
Answer:
a + d = 90
c + b = 180
==> C) 270
Find the sum (c- 4) + (3c + 9)
Answer:
4c+5
Step-by-step explanation:
add the c values which is 4. then add all other values which is 5
I believe its
4c+5
If I'm wrong srry
Use absolute value to find the distance between −112 and 114 .
Enter your answer, as a mixed number in simplest form, in the box.
Answer:
2
Step-by-step explanation:/-112/=112 and /114/=114 then you subtract and the answer is 2
Marshall bought 20 refills and sold Them at $4 each. If it had cost $ 50 for the refills, what his profit or loss percentage
Answer:
cost = 50
sold price = 20 × 4 = 80
he have profit
percent =
the profit percent is 62.5
HOPE ITS HELPFUL
AND MARK AS BRAINIEST
Step-by-step explanation:
Hurry PLEASE!. i need help
Answer:
a)102 b)76.5%
Step-by-step explanation:
20 percent of 85 is 17 so you would add the two to get 102. For the second one, 65 is x percent of 85, of means multiply so 85x/100=65 85x=6500
6500/85= approximately 76.4705, rounding this to the nearest hundredth to get 76.50
a²+3a²ta
Could someone answer for me please?
Thanks
Answer:
a^2x(1+3at)
Step-by-step explanation:
--3.6 - 1.9t + 1.2 + 5.1t please help me solve it
Answer:
the correct answer is 8. hope this helps
Answer:
3.2t -2.4
Step-by-step explanation:
-3.6 - 1.9t + 1.2 + 5.1t
(add like terms)
3.2t - 2.4
