Answer:
[tex]\approx 2\ miles[/tex]
Step-by-step explanation:
Difference of 10 seconds between the lightning flash and its thunder clap.
Given that the speed of light is infinite.
So, lightning will be seen at the same time it happens.
10 seconds is the time taken by the sound to reach to the person.
Time taken = 10 seconds
Speed of sound = 1080 ft/sec
To find:
Distance from lightning flash in miles.
Solution:
First of all, let us a have a look at the formula:
[tex]Distance = Speed \times Time[/tex]
Putting the given values:
Distance = [tex]1080\times 10 = 108000\ feet[/tex]
5280 feet = 1 mile
1 feet = [tex]\frac{1}{5280}[/tex] miles
10800 feet = [tex]\frac{1}{5280}\times 10800 \approx 2\ miles[/tex]
Answer ASAP, will give brainliest
Answer:AFE
Step-by-step explanation:
Answer:
<DFE
Step-by-step explanation:
Plz help ASAP!!! WILL MARK YOU BRAINLIEST IF YOU ANSWER IS CORRECT!!! Question#6
Answer:
B
Step-by-step explanation:
Recall that the domain is the span of x-values covered by the graph, while the range is the span of y-values covered by the graph.
From the graph, we can see that the span of x-values covered goes from x=-2 to x=1.
However, note that while at x=-2, the dot is closed, while at x=1, the dot is open. This means that we do not include the point at x=1. Therefore, the domain is all values of x between x=-2 and x=1 not including x=1.
In set notation, this is:
[tex]\{x|-2\leq x<1\}[/tex]
Thus, the domain is all values greater than or equal to -2 but less than 1.
For the range, we can see that the graph spans from y=-4 to y=2. Again, at y=2, the dot is open. Thus, we do not include y=2 in our range.
In set notation, this is:
[tex]\{y|-4\leq y<2\}[/tex]
This is interpreted as all y-values greater than or equal to -4 but less than 2.
The answer is B
Solve each variable. Then match each equation with its correct answer. х -7 -15 = b - 18 4=n-2 b-(-16) = 17
Answer:
PLEASE READ EXPLANATION
1. [tex]x = 7[/tex]
2. [tex]b = 3[/tex]
3. [tex]n = 6[/tex]
4. [tex]b = 1[/tex]
Step-by-step explanation:
I’m going to assume the equations are as following - you made it a bit hard to read.
[tex]x - 7 = 0[/tex]
[tex]-15 = b - 18[/tex]
[tex]4 = n-2[/tex]
[tex]b-(-16) = 17[/tex]
I’m just shooting guesses here, if I said an equation wrong PLEASE let me know.
We can solve each equation by isolating x on one side.
Number 1:
[tex]x - 7 = 0\\\\x - 7 + 7 = 0 + 7\\\\x = 7[/tex]
Number 2:
[tex]-15 = b - 18\\\\-15 + 18 = b - 18 + 18\\\\3 = b[/tex]
Number 3:
[tex]4 = n-2\\\\4 + 2 = n - 2 + 2\\\\n = 6[/tex]
Number 4:
[tex]b-(-16) = 17\\\\b+16=17\\\\b + 16 - 16 = 17 - 16\\\\b = 1[/tex]
Hope this helped!
Colleen is touring an automobile plant. The tour guide tells her that they use 938 kg of aluminum to make 7 cars. All of the cars are the same so they use the same amount of aluminum for each car. If they have only used 100 kg of aluminum on the car they are building right now, how much more aluminum do they need to finish the car?
Answer:
34 kg
Step-by-step explanation:
(938/7) = 134 kg per car, so since they only have 100 kg, 34 kg are missing to complete the car.
A medical researcher measures the increase in heart rate of patients under a stress test. What kind of variable is the researcher studying?
The options in this question are not given; here is the complete question:
A medical researcher measures the increase in heart rate of patients under a stress test. What kind of variable is the researcher studying?
A. Identifier
B. Categorical
C. Quantitative
D. Qualitative
The answer to this question is C. Quantitative
Explanation:
In research, a quantitative variable refers to a variable or factor that involves using numbers, percentages, and in general, quantities to be understood. Moreover, this is the opposite of qualitative variables that involve using qualities. The medical research described includes a quantitative variable because heart rate can only be measured and understood through numbers. Also, other types of variables such as qualitative or categorical are not involved because these are related to qualities rather than numbers.
What is the total area, in square inches, of the figure shown below?
Answer:
264 in²
Step-by-step explanation:
The figure given can be divided into 5 parts as shown in the attachment below, and it would consists of the following with their dimensions:
2 triangles of the same dimensions labelled 1 and 2:
Base (b) = 16 in
Height (h) = 10 in
Area = 2*½*b*h = 2*½*16*10 = 160 in²
2 rectangles of the same dimensions labelled 4 and 5:
length (l) = 5 in
width (w) = 4 in
Area = 2(l*b) = 2(20) = 40 in²
1 rectangle labelled 3:
length (l) = 16 in
width (w) = 4 in
Area = l*w = 16*4 = 64 in²
Total area of the figure = 160 + 40 + 64 = 264 in²
What is the slope of the line passing through the point (2,-1) and the origin?
Answer:
y = - 1/2x
Step-by-step explanation:
can someone help me with this only if you know it’s algebra 2
Answer:
b) 33.75≤x≤34.25
Step-by-step explanation:
X could equal either 34.25 or 33.75 to give you exactly 0.25. Since the answer can be less than 0.25, it’s all numbers between 33.75 and 34.25, including those two numbers. (That’s why the circles are filled in, unlike answer a).
HELPP!!
if f(x) =x²-3, then f(3) - f(-1) is:
Answer:f8
Step-by-step explanation:
What is the median of the following numbers?
8, 10, 10, 10, 6, 7, 8
Evaluate 3xy- y + 6z when x = 1, y = - 2 and z = 3
Answer:
14Step-by-step explanation:
[tex]3xy- y + 6z \\\\x = 1\\ y = - 2 \\ z = 3\\\\3(1)(-2) - (-2) +6(3)\\-6 + 2 +18\\=14[/tex]
Answer:
[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{14}}}}}[/tex]
Step-by-step explanation:
Given, x = 1 , y = -2 , z = 3
[tex] \sf{3xy - y + 6z}[/tex]
Plug the value of x , y and z
⇒[tex] \sf{3 \times 1 \times ( - 2) - ( - 2) + 6 \times 3}[/tex]
Multiply the numbers
⇒[tex] \sf{ - 6 - ( - 2) + 6 \times 3}[/tex]
We know that , [tex] \sf{( - ) \times ( - ) = ( + )}[/tex]
⇒[tex] \sf{ - 6 + 2 + 6 \times 3}[/tex]
Multiply the numbers : 6 and 3
⇒[tex] \sf{ - 6 + 2 + 18}[/tex]
Add the numbers : 2 and 18
⇒[tex] \sf{ - 6 + 20}[/tex]
Calculate the difference
⇒[tex] \sf{14} [/tex]
Hope I helped !
Best regards!!
What is equivalent to 3x-4y=6
Answer:
y= (3/4) x - (3/2)
Step-by-step explanation:
3x - 4y = 6 (using algebra add the 4y to the other side & subtract the 6 to the other side >> 3x - 6 = 4y (then divide everything by 4 to get y by itself) >> 3/4x - 6/4 = y (then simplify) >> 3/4x - 3/2 = y
Sally had 1/2 of a candy bar. She gave half of what she had to Frank. Frank gave half of HIS piece to Peter. How much of a candy bar did Frank end up with?
Six friends all use $2-off coupons to buy themselves movie tickets. They spend a total of $42. What is the price of one movie ticket without the coupon?
Group of answer choices
what’s the square root of 5 times the square root of 5
Answer:
5
Step-by-step explanation:
Looked it up on google
Answer:
[tex] \sqrt{5} \times \sqrt{5} = 5[/tex]
Step-by-step explanation:
bc 5 isn't a perfect square I'll use another number as an example.
the square root of 36 is 6 right? so 6 × 6 is 36.
or it can be written as 6^2=36.
hope this makes sense
Please help me ?????
Answer:
the answer is 1
Step-by-step explanation:
it's in the picture
PLEASE HELP write 3/53 as a percentage.
Round your answer to the nearest tenth of a percent.
Answer:
5.7%
Step-by-step explanation:
hope this helps
Answer:
5.7%
Step-by-step explanation:
3/53=5.660377358491
5.660377358491≅5.7
4 7/9 divided by 1 7/12
Answer:
2 19/5
Step-by-step explanation:
4 7/9 ÷ 1 7/12
start by turning them into improper fraction by multiplying the denominator to the whole number and adding the product to the numerator , you will get :
42/9 ÷ 17/12
42/9 * 12/17 ( reciprocal )
42/3 * 4/17 (9 and 12 can be cut smaller because both are in 3's table)
= 172/51
turn this into mixed fraction by -
Divide the numerator by the denominator.
Write down the whole number answer
Then write down any remainder above the denominator
you will get = 2 19/5
4 7/9 divided by 1 7/12 will be 3 1/57.
The first thing to do is to change the mixed fraction to improper fraction and this will be:
= 4 7/9 ÷ 1 7/12
= 43/9 ÷ 19/12
Then we change the division sign to multiplication and this will be:
= 43/9 × 12/19
We then reduce to lowest term
= 43/9 × 12/19
= 43/3 × 4/19
= 172/57
= 3 1/57
In conclusion, 4 7/9 divided by 1 7/12 is 3 1/57.
Read related question on:
https://brainly.com/question/18624736
How is this solved..? Plz help
Answer:
I believe the answer is B...
Step-by-step explanation:
Ray collects cars and trucks. Over the years, the number of cars he collected is 8 less than twice
the number of trucks. If he has a total of 43 cars and trucks, how many trucks does Ray have?
Answer:
Number of Trucks = 17
Step-by-step explanation:
Given:
Total number of cars and truck = 43
Find:
Number of Trucks
Computation:
Assume
Number of Trucks = x
Number of Cars = 2x - 8
Total number of cars and truck = Number of Trucks + Number of Cars
43 = x + 2x - 8
51 = 3x
x = 17
Number of Trucks = 17
subract -x from 11+3x and the result from 4x+12
Answer:
2x+1
Step-by-step explanation:
11+3x- (-x)= 11+4x
4x+12-4x+11= 1
hope this helps and if you want please consider giving me brainliest.
Answer:1
Step-by-step explanation:
(11+3x)-(-x)=11+4x
(12+4x)-(11+4x)=1
PLEASE HELP MY FUTURE DEPENDS ON THIS QUESTION 6
Answer:
Five more than a number
Step-by-step explanation:
Coefficient of 'a'in the term
Answer: option 1. -3/4
Step-by-step explanation:
coefficient: the number before a variable (but must be bounded with it)
------------
-3/4 a
coefficient: -3/4 (-3/4a)
Hope this helps!! :)
Please let me know if you have any question
1250392 nearest thousand please answer me
Answer: 1,250,000
Step-by-step explanation:
What is the justification for 2y-40=-18 A the multiplication property of equality B the subtraction property C the division property D the addition property
Answer:
Addition and Division propertyStep-by-step explanation:
Addition property is used in an equation when the same value is added to both sides of the equation to simplify such equation.
Given the equation 2y-40=-18 to simplify the equation further we need to first add 40 to both sides of the equation thereby justifying the addition property as shown;
2y-40 + 40 =-18+40
2y = 40-18
2y = 22
We will also apply the division property here. Division property is used when both sides of an equation is divided by a number without affecting the equality rule.
Dividing the resulting equation by 2:
2y/2 = 22/2
y = 11
Hence the justification for the equation 2y-40=-18 are both adition and division property.
Rewrite the function by completing the square.
f(x) = x² - 9x + 14
F(x)=?(x+?)^2+?
Answer:
(x-9/2)²-25/4
Step-by-step explanation:
x² - 9x + 14
to complete the square , need to add a term (b/2)²: (-9/2)²=81/4
x² - 9x -81/4+ 14+81/4
x²-9x+81/4=(x-9/2)²
14-81/4=66-81/4=-25/4
(x-9/2)²-25/4
solve the following equation show your work -1/2w - 3/5 = 1/5w
Answer:
w = (-6)/7
Step-by-step explanation:
Solve for w:
-w/2 - 3/5 = w/5
Hint: | Put the fractions in -w/2 - 3/5 over a common denominator.
Put each term in -w/2 - 3/5 over the common denominator 10: -w/2 - 3/5 = (-5 w)/10 - 6/10:
(-5 w)/10 - 6/10 = w/5
Hint: | Combine (-5 w)/10 - 6/10 into a single fraction.
(-5 w)/10 - 6/10 = (-5 w - 6)/10:
(-5 w - 6)/10 = w/5
Hint: | Make (-5 w - 6)/10 = w/5 simpler by multiplying both sides by a constant.
Multiply both sides by 10:
(10 (-5 w - 6))/10 = 2 w
Hint: | Cancel common terms in the numerator and denominator of (10 (-5 w - 6))/10.
(10 (-5 w - 6))/10 = 10/10×(-5 w - 6) = -5 w - 6:
-5 w - 6 = (10 w)/5
Hint: | In (10 w)/5, divide 10 in the numerator by 5 in the denominator.
10/5 = (5×2)/5 = 2:
-5 w - 6 = 2 w
Hint: | Move terms with w to the left hand side.
Subtract 2 w from both sides:
(-5 w - 2 w) - 6 = 2 w - 2 w
Hint: | Combine like terms in -5 w - 2 w.
-5 w - 2 w = -7 w:
-7 w - 6 = 2 w - 2 w
Hint: | Look for the difference of two identical terms.
2 w - 2 w = 0:
-7 w - 6 = 0
Hint: | Isolate terms with w to the left hand side.
Add 6 to both sides:
(6 - 6) - 7 w = 6
Hint: | Look for the difference of two identical terms.
6 - 6 = 0:
-7 w = 6
Hint: | Divide both sides by a constant to simplify the equation.
Divide both sides of -7 w = 6 by -7:
(-7 w)/(-7) = 6/(-7)
Hint: | Any nonzero number divided by itself is one.
(-7)/(-7) = 1:
w = 6/(-7)
Hint: | Simplify the sign of 6/(-7).
Multiply numerator and denominator of 6/(-7) by -1:
Answer: w = (-6)/7
Answer:
-5/10w - 3/5 = 2/10w
- 3/5 = 7/10w
-30 = 35w
-30/35 = w
-6/7 = w
-----
Hope this helps!! - Maddy
(if this helps please make brainliest, rate, and thank so I know how I did!)
╰(*°▽°*)╯
A cherry farmer has 5,236 cherries to put into jars. It takes 77 cherries to fill one jar. How
many jars will the farmer be able to fill with cherries?
jars
Answer:
about 68 jars
Step-by-step explanation:
5,236 divided by 77, because there are 5,236 cherries and 77 fills one jar.
Can you please help me. Iḿ literally struggling. The question is mx+4y=3c for x
Answer:
x = [tex]\frac{3c-4y}{m}[/tex]
Step-by-step explanation:
Given
mx + 4y = 3c ( subtract 4y from both sides )
mx = 3c - 4y ( divide both sides by m )
x = [tex]\frac{3c-4y}{m}[/tex]
Last question! I’m finished after this! Most points I can offer ^^
Answer:
Only Annabelle is correct.
Step-by-step explanation:
So we have the expression:
[tex](4^27^5)(4^37^2)[/tex]
When multiplying exponents with the same base, we can use the following property:
[tex]x^ax^b=x^{a+b}[/tex]
Essentially, we add the exponents together.
So, first group them:
[tex]=(4^24^3)(7^57^2)[/tex]
Use the property:
[tex]=4^{2+3}7^{5+2}[/tex]
And so our answer is:
[tex]=4^57^7[/tex]
So, Annabelle's answer is correct.
Navene incorrectly used the property. The property adds the exponents, it doesn't multiply them.
So, only Annabelle is correct.
And that's our answer :)
P.S. Congratulations on finishing!