Answer:
if Rama road 1 mph Sophie waited (20-4) = 16 hours
Step-by-step explanation:
Sophie road 5 mph for 20 miles
distance = rate of speed times time traveled
d = st
20 =5t
t = 20/5 = 4 hours
Rana road r mph for 20 mile
d=rt
20=rt
t =20/r
Sophie waited 20/r - 4 hours
20/r -4 = (20-4r)/r
if Rana road at 4 mph, Sophie waited (20-4(4))/r = 4/4 = 1 hour
If Rana road at 3 mph, Sophie waited (20-4(3))/3 = 8/3 = 2 hours 40 minutes
if Rama road at 2 mph Sophie waited (20-4(2))/2 = 12/2 = 6 hours
if Rama road 1 mph Sophie waited (20-4) = 16 hours
[tex]3\sqrt{x} 6-4\sqrt{x} 6[/tex]
i need help with this problem this is radicals can you please explain to me how to do this it would be very helpful
7
.
Marisela wants to create a trophy in the shape of a rectangular
pyramid with volume 0.1875 cubic foot. Complete the descriptions
by writing in the missing measurements. 7.6.6
Design #1: pyramid height = 1.5 ft; base width = 0.75 ft;
Answer:
Volume of a rectangular pyramid:
[tex]V=\dfrac13lwh[/tex]
where:
[tex]V[/tex] = volume[tex]l[/tex] = length of base[tex]w[/tex] = width of base[tex]h[/tex] = heightGiven:
[tex]V[/tex] = 0.1875 ft³[tex]w[/tex] = 0.75 ft[tex]h[/tex] = 1.5 ftSubstitute given values into the formula and solve for [tex]l[/tex]:
[tex]\implies 0.1875=\dfrac13 \cdot l \cdot 0.75 \cdot 1.5[/tex]
[tex]\implies 0.1875=\dfrac{1.125}{3} l[/tex]
[tex]\implies 0.1875=0.375 l[/tex]
[tex]\implies l=\dfrac{0.1875}{0.375}[/tex]
[tex]\implies l=0.5[/tex]
Therefore, the base length is 0.5 ft
I NEED HELP ASAP!!!!!
i need the answer pls help pls
Answer:
B
Step-by-step explanation:
x² - 8x + 97 = 0
the general form to solve such quadratic equations is
x = (-b ± sqrt(b² - 4ac))/(2a)
in our case
a = 1
b = -8
c = 97
so, we get
x = (8 ± sqrt((-8)² - 4×1×97))/(2×1) =
= (8 ± sqrt(64 - 388))/2 = (8 ± sqrt(-324))/2 =
= (8 ± sqrt(324×-1))/2 = (8 ± 18×i)/2 = 4 ± 9i
Find the area of the figure.
answer:
4.5m²
explanation:
1. find area of the circle
A(circle)=πr²
A=π(2.3²)
A=16.62m²
2. find area of the square
the diameter of a circle is twice its radius. when you multiply 2.3 by two, you get 4.6. since the circle reaches to the sides of the square, the diameter is also the length of a side on the square.
A(square)=s²
A=4.6²
A=21.16m²
3. subtract the two areas
to find the area of the shaded sector, we need to subtract the area of the circle from the area of the square.
A(shaded)=21.16-16.62
A=4.54097487m²
(be sure to round as necessary)
--
if this helped, please consider giving brainliest !
PLEASE HELP WITH THIS! IM FALLING BEHIND
Original side length: A'C'=5
Original angle: 37 degrees
By dilating with a scale factor over one, you are making it bigger. For this, you would multiply A'C' by 5. However, the angle doesn't change.
Resulting side length: A'C'=25
Resulting angle: 37 degrees
The correct answer is C.
ans this question pleasepleasee i need it now 11:19 am
Step-by-step explanation:
Just times all the number for every question like the first one, 4×4×4=64(units)
=64ft
Same for the rest
Round your answer to the nearest hundredth.
Answer:
67.98°
Step-by-step explanation:
Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Also remember to rate answers to help other students, While leaving thanks to answers that help you. Have a great day!
Solve the following system of equations algebraically:
x + 5y = -19
3x - y=-9
Answer:
x= -4, y=-3
Step-by-step explanation:
solving the two equations simultaneously you'll get x to be-4 and y to be -3
x+ 5y= -19
3x-y=-9
multiplying the second equation by5
15x-5y=-45
adding eqn 1 and eqn 3
16x= -64
x= -4
substituting into eqn 2
3(-4)-y= -9
-y= -9+12
-y= 3
y=-3
The graph of a function g is shown below.
Find g(1) and find one value of x for which g(x)=-1.
1) g (1) = ?
2) one value of x for which g (x) = -1 ?
Answer:
this is wrong
is the answer
if you like my answer please like comment and mark me as brilliant
Mr. Andade had supply bag with three mechanical pencils, four blue pens, and five black pens. If he selects a writing utensil without looking, what is the probability he will select a mechanical pencil?
Answer:
1/6
Step-by-step explanation:
The sum of all writing utensils are 3+4+5 = 12,
Therefore the probability he will select a mechanical pencil is 3/12 or 1/4.
.
.
.
.
.
.
.
.
For additional info,
Probability of selecting a blue pen and black pen respectively is 4/12 or 1/3 and 5/12.
Find the area of a circle with a radius of 5 feet. Round your answer to the nearest tenth.
area: about
ft2
Answer:
78.6
Step-by-step explanation:
Area of circle = Pi*r^2
r=5
for pi use calculator or pi=3.142
area =Pi*r2=(3.142)*5^2=(3.142)*25=78.55 = 78.6 (1 decimal place which is same with tenth)
A farmer has 160 ft. of fencing and wants to fence off a rectangular field that borders a straight river. He needs no fencing along the river.
a) What are the dimensions of the field that has the largest area?
b) What is the maximum area?
Answer:
L and B be the dimensions of field.
L+2B =2400ft.
AreaA = L×B=L×(2400-L)/2=1200L-L^2
For max.area to use the fencing dA/dL=1200-2L=0 or L=600ft
B=(2400-600)/2=900ft.
Total area = 540000ft^2.
Maybe?
Step-by-step explanation:
Quora
What is a[tex]\frac{1}{3}[/tex] As a ratio?
Find the surface area of the triangular prism.
A triangular prism. The base has sides of 17 meters, 17 meters, and 16 meters. The height of the prism is 10 meters. Apothem goes from the base vertex to the midpoint of the base edge, 16 meters, and measures 15 meters.
The surface area is
square meters.
If m∠D = 96°, what will be the m∠C to have a supplementary angle.
Answer:
84
Step-by-step explanation:
supplementary means two angles that add to 180
180-96=84
What is the area of this trapezoid
Answer:
468
Step-by-step explanation:
Area of trapezoid=1/2 *h(l1+l2)
=1/2*18*(15+37)
=9*52
=468
Please help!!!
John's water bill this month was $19.67. Looking at the water bill, it says he used exactly 10,000 gallons of water. How much does he pay per gallon of water used?
Answer:
$0.001967/gallon
Step-by-step explanation:
John uses alot of water.... and it sure is cheap.
19.67/10000 =
Please help me with this problem thank you!
Answer:
the awnser is or I'm 4th grade
Pls answerrrrrrrrrrrrrrrrrrrrrr
Answer:
13
Step-by-step explanation:
the two lines with y in them are the same length
6y = y+65
5y = 65
y = 13
Please help me find the area for this hexagon (please show work to) ,:)
Check the picture below.
so the area of the hexagon is really just the area of two isosceles trapezoids.
[tex]\textit{area of a trapezoid}\\\\ A=\cfrac{h(a+b)}{2}~~ \begin{cases} h=height\\ a,b=\stackrel{parallel~sides}{bases}\\[-0.5em] \hrulefill\\ a=2\\ b=4\\ h=2 \end{cases}\implies \begin{array}{llll} A=\cfrac{2(2+4)}{2}\implies A=6 \\\\\\ \stackrel{\textit{twice that much}}{2A = 12} \end{array}[/tex]
valerie drives 500 meteres up a hill that makes an angle of 15 degrees with the horizontal. To the nearest tenth of a meter, what horizontal distance has she covered?
Answer:
Answer:
The horizontal distance she has covered is:
x = 483.0m
Step-by-step explanation:
For further info look at this : https://brainly.com/question/9437065
Scott has 2 six-sided dice. What is the probability that the sum of the roll is one?
Answer: 0, it’s not possible to roll 2 dice with the sum ending up being one.
Find the length of the midsegment of the trapezoid.
Answer:
So 18+-10=8, 18+-8=10. So the answer is 8 I guess.
When Tim was 5, he got 20 birthday gifts. When Tim was 13, he got 6 birthday
gifts. (Show your work)
a. What is the percent of change?
b. Is the change an increase or a decrease?
Answer:
A) 6.66% B) It's a decrease
(Hi! Hope this was helpful. Please tell me if you needed a different answer. Have a great day:)
$117 per week is proportional to $234 per 2 weeks.
The proportion is____?
A proportion is a comparison between two ratios.
A ratio is a proportion between two numbers.
To write a proportion, create two comparisons with two numbers and set them equal to each other.
Solving the QuestionWe're given:
$117 per week$234 per 2 weeksThese ratios are proportional to each otherWrite two ratios:
[tex]\dfrac{117\hspace{3}dollars}{1\hspace{3}week}[/tex]
[tex]\dfrac{234\hspace{3}dollars}{2\hspace{3}weeks}[/tex]
Set them equal to each other:
[tex]\dfrac{117\hspace{3}dollars}{1\hspace{3}week}= \dfrac{234\hspace{3}dollars}{2\hspace{3}weeks}[/tex]
Answer[tex]\dfrac{117\hspace{3}dollars}{1\hspace{3}week}= \dfrac{234\hspace{3}dollars}{2\hspace{3}weeks}[/tex]
18. Simplify the expression.
(5)10 - (5)13
Answer:
Answer:
-15 is the answer
Step-by-step explanation:
According to the BODMAS (bracket of Division Multiplication Addition Subtraction) rule
=5*10-5*13
=50-65
=-15
please hurry im crying
Answer:
Step-by-step explanation:
it shows that the line is the same becuase it is perfectly lined up :)
You buy x bags of chips for $.75 per bag. How much do you spend on chips.
Answer:
Step-by-step explanation:
Equation
Cost = 0.75 * x
The answer is Cost = 0.75 * x
Keisha is jogging from her house to school. Her school is 4 1/2 miles from her house. She has gone 3/8 miles so far. How many miles does Keisha still have to jog?