Answer:
1.5 sec by meters
Step-by-step explanation:
90 meters/60 sec=1.5
Darrel walks at a unit rate of 1.5 m/sec.
What is speed?Speed is defined as the rate of change of position in unit time.
Mathematically,
Speed = Distance/Time
Now it is given that,
Distance in walk by Darrell = 90 meters
Time taken by Darell to walk 90 meters = 60 seconds
Therefore Speed i.e unit rate of walk is given as,
Unit rate of walk = Distance in walk by Darrell / Time taken by Darell to walk 90 meters
⇒ Unit rate of walk = 90/60 m/sec
⇒ Unit rate of walk = 3/2 m/sec
⇒ Unit rate of walk = 1.5 m/sec
Thus, Darrel walk at a unit rate of 1.5 m/sec.
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Which is greater 1/5, or 19%
Answer:
1/5 is 20% which means that it's greater than 19%
Step-by-step explanation:
Hope this helped :)
hey everyone im back!!!!!!! But im in Texas now! :D
Answer:
Hiii when I went to Florida Miami I landed in Texas
PLEASE HELP!!!!!!!!!!! I NEED THIS RN!!!!! NO LINKS, JUST THE ANSWER!!!!!!!
THIS IS NOT MULTIPLE CHOICE!!!!!!
B. Find another city whose population starts larger than the city in part (a), but
that during this same time experienced population decline. Determine its
population for January 1st of the same year you picked for part (a). Write an
exponential function to represent the city’s population, y, based on the
number of years that pass, x after a period of population decline. Describe
the variables and numbers that you used in your equation.
-
c. Explain the similarities and differences between your equations in (a) and (b).
d. During what year will the population of city (a) first exceed that of city (b)?
Show all of your work and explain your steps.
e. During what year will the population of city (a) be at least twice the size of
the population of city (b)? Show all of your work and explain your steps.
Answer:
Step-by-step explanation:
We need the actual base question put that in the comments or edit the question
How many quart are 8/1/4 gallons
Given:
Consider the given gallons are [tex]8\dfrac{1}{4}[/tex] gallons.
To find:
The number of quarts in [tex]8\dfrac{1}{4}[/tex] gallons.
Solution:
We know that,
1 gallons = 4 quarts
Using this conversion, we get
[tex]8\dfrac{1}{4}\text{ gallons}=4\times 8\dfrac{1}{4}\text{ quarts}[/tex]
[tex]8\dfrac{1}{4}\text{ gallons}=4\times \dfrac{32+1}{4}\text{ quarts}[/tex]
[tex]8\dfrac{1}{4}\text{ gallons}=4\times \dfrac{33}{4}\text{ quarts}[/tex]
[tex]8\dfrac{1}{4}\text{ gallons}=33\text{ quarts}[/tex]
Therefore, there are 33 quarts in [tex]8\dfrac{1}{4}[/tex] gallons.
4. What is the half-life of the radioactive isotope with amount A, whose rate of decay in t hours is shown in the graph below?
(0,40)
(20,15)
Answer:
15, 25
Step-by-step explanation:
Answer:The half life is the time taken for the amount of a substance to become half of its original value. If we take the initial value to be 30 on the y-axis, the half of 30 is 15. We check the time at which the substance has reduced to 15 atoms and this is about 40 seconds. The answer is C.
Step-by-step explanation:
Two angles are supplementary. One angle is 50° more than the other. Find the measure of the two angles.
Answer: If one of these angles measures 50 degrees more than the other, find the measure of the smaller angle. A+A+50=180 Subtract 50 from each side. A=65 degrees ANSWER The smaller angle is 65 degrees.
Step-by-step explanation:
Answer:
130°
Step-by-step explanation:
the other angle is 130°
A support wire is attached to the top of an antenna. The support wire connects
to the ground 15 feet from the bottom of the antenna. The support wire and the
ground meet at an angle with measure 70°, as shown.
Antenna
70°
15 ft-
To the nearest foot, what is the height of the antenna?
The antenna is
feet tall.
Answer:
Step-by-step explanation:
The antenna height is 41.23 feet if the support wire is attached to the top of the antenna.
What is trigonometry?Trigonometry is a branch of mathematics that deals with the relationship between sides and angles of a right-angle triangle.
We have:
A support wire is attached to the top of an antenna. The support wire connects to the ground 15 feet from the bottom of the antenna.
Let x be the height of the antenna.
We can find the length of the antenna using the trigonometric ratios:
As we know, the trigonometric ratio is defined as the ratio of the pair of a right-angled triangle.
Applying tan ratio in the right angle triangle:
tan70 = x/15
x =15tan70
x = 41.212 feet ≈ 41.23 feet
Thus, the height of the antenna is 41.23 feet if the support wire is attached to the top of the antenna.
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Similar triangles (please explain how to do this)
Answer:
Step-by-step explanation:
plz help i will give brainliest
Answer:
[tex] m\angle XYZ = 70\degree [/tex]
Step-by-step explanation:
By exterior angle theorem:
4x° = 2x° + 70°
4x° - 2x° = 70°
2 x° = 70°
2x = 70
x = 70/2
x = 35
[tex] m\angle XYZ = 2x\degree [/tex]
[tex] m\angle XYZ = 2\times 35\degree [/tex]
[tex] m\angle XYZ = 70\degree [/tex]
5 points
If f(x) = 3 sin 2x + c, what is the maximum value
of f(x)?
A) c+5
B) c+2
C) c
D) c +3
A
B
Answer:
D
Step-by-step explanation:
The maximum value of sin is 1. The Ampltiude is 3 so the maximum value of sin is 3 now.
The vertical shift is c so whatever value of c would be add to the maximum value z 3
D is the answer.
A 90% confidence interval is found to be (72, 78). What is the margin of error?
A. 6
B. 2.7
C. 5.4
D. 3
Answer:
Step-by-step explanation:
D. 3
What is the IQR of:
45, 32, 62, 26, 22, 29
Answer:
The first quartile is 26.
The third quartile is 45
The median is 30.5
The interquartile range is 19.
Hope that helped :)
Step-by-step explanation:
Express the area of the entire rectangle.
Your answer should be a polynomial in standard form.
Answer:
Area= height x width = (x + 6) (x+ 2) = x^2 + 2x + 6x + 12= x^2 + 8x + 12
CAN SOMEONE HELP ME PLEASE IM SO FRUSTRATED BECAUSE NO ONE IS HELPING ME PLS JUST BE NICE AND HELP ME PLS :’) NO LINKS NO BOTS OR JUST ANSWERS TO GET POINTS I WILL REPORT !!!Which of the following equations describes the line shown below? Check all
that apply.
(12,6) (4,4)
Answer:
I'm sorry that no one is helping you, the correct answers are A and F.
Step-by-step explanation:
The line's equation is [tex]y=\frac{1}{4} +3[/tex]. You know this because the slope of the line is found by subtracting the y-value of the two points and dividing it by the difference of the x-values, which would be [tex]\frac{6-4}{12-4} = \frac{2}{8} = \frac{1}{4}[/tex]. Using the slope, you can calculate the y-intercept of the equation, which you just multiply the slope by the distance to the y-axis and subtract that from the y-value of (4, 4), which you will get [tex]4 + (-4*\frac{1}{4}) = 4+(-1) = 3[/tex]. So the equation of the line is [tex]y=\frac{1}{4} +3[/tex]. When you simplify all the choices below, you'll get that only A and F are equivalent to the equation, so those are the correct choices.
What variable in the equation y=mx+b represents the rate of change?
A) y
B) m
C) x
D) b
Answer:
D) b
Step-by-step explanation:
Rise Over Run = Rate of change.
Write 7/12-11/16 as a fraction in simplest form
Answer:
3/4
Step-by-step explanation:
7/12-11/16
7-11=3
12-16=4
3/4
Rachel ran 3 miles when she was training for a race. How many feet did she run?
Answer:
15,840 i did this in test and got 100%
Step-by-step explanation:
The total feet ran by Rachel is given by the equation A = 15,840 feet
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
Let the total miles ran by Rachel be A = 3 miles
Now , the value of 1 mile = 5,280 feet
Substituting the values in the equation , we get
The distance of 3 miles in feet = 3 x value of 1 mile
On simplifying the equation , we get
The distance of 3 miles in feet = 3 x 5,280
The distance of 3 miles in feet = 15,840 feet
Therefore , the distance ran by Rachel A = 15,840 feet
Hence , the equation is A = 15,840 feet
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Find the arc length of the semicircle. Enter an exact answer in terms of . units
Answer:
The answer is 37.699111848 units or 0 units, pick
Step-by-step explanation:
2πr (θ/360)
how to make percent to decimal?
ex. 76% = #/#
Answer:
divied by 100 and remove the "%" sign.
Step-by-step explanation:
1.)example 10% becomes 10/100=0.10
2.) example 67.5% becomes 67.5/100=0.675
what is 2 divide 74
Answer:
about 0.027028
Step-by-step explanation:
0.0270270270270270 it gos on
If you get a student loan for $2,000 at 8% interest, what is the simple interest for one year?
The SUM OF THE INTERIOR ANGLES of a regular polygon is 540°. How many sides does the polygon have? Show all work
Answer:
5
Step-by-step explanation:
number of sides = (sum of interior angles / 180) + 2
(540 / 180) + 2 = 5
Help Asap please, If you dont know it please dont!
Answer:
D. 22 2/3 square yards
Step-by-step explanation:
To find the area of a rectangle or the workshop, you just have to multiply the two measurements together.
Hope this helps!
-Luna
If 10 apples cost $8.95, how much will 4 apples cost?
Step-by-step explanation:
here's your solution
=> cost of 10 apple = $ 8.95
=> cost of 1 apple = $8.95/10 = $ 0.895
=> cost of 4 apple = $ 0.895*4
=> cost = $3.580
hope it helps
40% of the flowers in a garden are red. If 70
flowers are growing in the garden, how many
red flowers are growing?
Answer:
40% of 70 = red flower hence red flower are 28
Answer:
So there are 28 red flowers are growing
Step-by-step explanation:
=40/100 ×70
= 28
Plz mark me as Brainest answer
what is the vertex of the parabola? y + 1 = -1/4 (x-2)^2
Answer: i took a screen shot hope it helps
Step-by-step explanation:
Quickly answer, I only have a few minutes left!!!!
Answer:
3) x=11
4) x=65 degrees
I can explain more if you need but since you need it quick basically theyre just the same as the other side since its a 90 degree angle and the line is going through the center
Answer: x is 11 and 65 like they said
Step-by-step explanation:
You 5-year loan of $14,000 is at 4.3% compounded annually. How much will you have paid in total for your loan?
Answer:
$17,276
Step-by-step explanation:
Given data
Time= 5 years
Principal= $14,000
Rate= 4.3%
We want to find the final amount
A=P(1+r)^t
Substitute
A= 14000(1+0.043)^5
A= 14000(1.043)^5
A= 14000*1.234
A=$17276
Hence the total amount is $17,276
What is the name of the type of data that a scatterplot is used to analyze? univariate data bivariate data trivariate data quadvariate data
Answer:
bivariate data
Answer:
it's Bivariate data
Step-by-step explanation:
Its right cause I'm right, pls gimme 5 star and brainliest cause it's brainy ty
is 4/20 and 3/12 proportional
Answer:
no it is not
Step-by-step explanation:
you would have to get a common denominator which would be 60 so 12 times 5 is 60 and 20 times 3 is 60
then you multiply 4 by 3 and thats 12 and 3 times 5 is 15 so no they arent perportional