Answer:
x=-11/3
Step-by-step explanation:
Help!!
Find the volume. Around to the nearest Hundredth.
1326cm
1026.04mi
1526.82mi
6104.16mi
Answer:
V=1526.82 mi³
Step-by-step explanation:
The formula for the volume of a right circular cone is V=πr²(h/3).
The radius is half of the diameter of 18, so it is 9 mi.
The height is 18 mi.
Plug in your numbers into the formula.
V=π9²(18/3)
V=π81(6)
V=π486
V=1526.82 mi³
You have $15. a. How much money do you have left if you ride each ride once? You have $ left. b. Do you have enough money to ride each ride twice? Explain. It costs $ to ride each ride once, and you have $ left.
Answer:
a.) Money left = $1
b) No
Step-by-step explanation:
Given - You have $15. It costs $ to ride each ride once,
To find - a. How much money do you have left if you ride each ride once?
b. Do you have enough money to ride each ride twice? Explain.
Proof -
As it is not given in the question that, how much cost to ride each ride once.
Let us assume that,
The cost for each ride = $2
Total rides = 7
Now,
Total money we have = $15
a.)
Given, cost for 1 ride = $2
⇒ Cost for 7 rides = 7×$2 = $14
∴ Money left = $15 - $14 = $1
b.)
Given,
Cost for 1 ride = $2
Cost of 1 ride if we ride twice = 2×$2 = $4
Cost of 7 rides if we ride twice = 7×$4 = $28
As $28 > $15
So, we cannot ride each ride twice.
Write a formal proof
Will give brainliest
Please answer with the full proofs
Answer:
Step-by-step explanation:
In ΔMOT and ΔMPR,
OT║PR and MR is a transverse,
Therefore, ∠MTO ≅ ∠MRP [Corresponding angles]
Similarly, OT║PR and MP is a transverse,
Therefore, ∠MOT ≅ ∠MPR [Corresponding angles]
ΔMOT ~ ΔMPR → [By AA postulate of similarity]
[tex]\frac{MP}{MO}= \frac{MR}{MT}[/tex] [Reason → Corresponding sides of the similar triangles are proportional]
[tex]\frac{MO+OP}{MO}=\frac{MT+TR}{MT}[/tex] [By segment addition postulate]
1 + [tex]\frac{OP}{MO}[/tex] = 1 + [tex]\frac{TR}{MT}[/tex]
[tex]\frac{OP}{MO}=\frac{TR}{MT}[/tex]
In ΔTSR,
∠1 ≅ ∠2 [Given]
Therefore, TR ≅ SR [Sides opposite to the equal angles in a triangle are equal]
Therefore, [tex]\frac{OP}{MO}=\frac{SR}{MT}[/tex]
Or [tex]\frac{MO}{OP}=\frac{MT}{SR}[/tex]
Hence proved.
A truck can carry a 3.5 ton load. How many packs of roof shingles weighing 80 lb each can it carry?
Answer:
25
Step-by-step explanation:
it can carry 25 packs of shingles because
1 ton = 2000 ponds
and 80 can go into 2000 25 times
hope this helps!
What is the slope of a trend line that passes through the points (1, 3) and (10, 25)?
O -15/2
O -1/2
O 22/9
O 24/7
If the cost of petrol is R10,05 per litre, calculate how far the
car will be able to travel if R150,00 worth of petrol is filled in the car.
Answer:
I dont know lol...........
someone please help me
Answer:
can't see the question ⁉️
Please simplify the expression to standard form:
−1/2(8x −4) + (−5 + 3x)
inverse equation t=120r/r+120 R=???
9514 1404 393
Answer:
r = 120t/(120-t)
Step-by-step explanation:
Multiply by the denominator, isolate r terms, then divide by the coefficient of r.
[tex]t=\dfrac{120r}{r+120}\qquad\text{given}\\\\t(r+120)=120r\qquad\text{multiply by $(r+120)$}\\\\120t=120r-tr\qquad\text{subtract $tr$}\\\\\dfrac{120t}{120-t}=r\qquad\text{divide by the coefficient of $r$}\\\\\boxed{r=\dfrac{120t}{120-t}}[/tex]
Please help ASAP it’s due tomorrow at 12
Answer:
value of x is 22°
Step-by-step explanation:
It is 22 degrees because it is originally a right angle which is 90°. If you do 90-68 you would get 22. The reason you would subtract is because 68 is already used of the 90° angle. My explanation isn't that good.
(2x-5y)^2
Find the square using identity
Class 8
Answer:
=4x^2−20xy+25y^2
Step-by-step explanation:
(2x−5y)^2
=(2x+−5y)(2x+−5y)
=(2x)(2x)+(2x)(−5y)+(−5y)(2x)+(−5y)(−5y)
=4x^2−10xy−10xy+25y^2
=4x^2−20xy+25y^2
Hope it helped!
Answer:
(2x)^2- 2*(2x)*(5y)+(5y)^2= 4x^2-20xy+25y^2
Step-by-step explanation:
Identity- (a-b)^2= a^2-2ab+b^2
The coefficient of a² in 5 a² + 8 ab is (im asking something normal this time lol)
Answer:
5
Step-by-step explanation:
coefficient is a number before a letter in this case itz 5
A triangle has two angles with measures of 40 degrees and 60 degrees. What is the measure of the third angle?
_________ degrees
Question 1 options:
75
Answer:
I think it's 80. if it's an isosceles triangle.
All triangles are 180
so we will add the two sides and then subtract them with 180 get the 3rd side.
Answer:
80 is the right answer for that questrion
What is the value of the expression 20 ÷ 4 + (6 x 2) − 2?
15
17
22
28
There are 15 counters. One-third of the counters are yellow. How many
counters are yellow? *
Answer:
3
Step-by-step explanation:
15*1/5= 3
question in photo—————————-
Answer:
there is two solutions to that problem. you can find x is equal to two numbers.
Answer this question to get marked as brainliest!!!
Answer:
∠ R = 120°
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Subtract the sum of the 2 angles from 180 , that is
subtract 60 from 180
∠ R = 180° - 60° = 120°
Add 4 kg 250 g, 2 kg 90 g and 19kg 3 g.
Answer:
=25343 grams or 25 kg 343 g.
Step-by-step explanation:
1 kg = 1000 g
∴ 4 kg = 4000 grams
and the 4 kg 250 g would equal = 4250 grams.
∴ 2 kg = 1000 g
2 kg 90 g = 2000 grams + 90 g = 2090 grams
∴ 19 kg = 19000 grams
and 19 kg 3 grams = 19000 grams + 3 grams = 19003 grams
now we will add all of the values together to get the final answer.
4250 grams + 2090 grams + 19003 grams = 25343 grams or 25 kg 343 g.
Hope this helps!!
The scores on a mathematics exam have a mean of 70 and a stadard deviation of 7. Find the x-value that corresponds to the z-score -1.45.
Answer:
59.85
Step-by-step explanation:
The scores on a mathematics exam have a mean of 70 and a stadard deviation of 7. Find the x-value that corresponds to the z-score -1.45.
We solve the above question using z score formula
z = (x-μ)/σ, where
x is the raw score
μ is the population mean = 70
σ is the population standard deviation = 7
z = -1.45
Hence:
-1.45 = x - 70/7
Cross Multiply
-1.45 × 7 = x - 70
-10.15 = x - 70
x = -10.15 + 70
x = 59.85
Determine if the two triangles are congruent. If they are, state how you know.
Answer:
SAS
Step-by-step explanation:
Sas states that if two sides and the angle of one triangle are congruent to two sides and the include angle of another triangle, then these two triangle are congruent.
Please solve as soon as possible I really appreciate it thank you!
Answer: d) 60
Step-by-step explanation:
so two numbers a+b=90 and also a-b=30
Lets assume a is the larger number. So we can plug and chug for time purposes I will explain why 60 is the answer. so 60-30=30 so b would be 30 and a would be 60. Also a+b or 60+30= 90 and that is the case the smaller number is 30 and the larger number is 60
A circular lawn has a row of bricks around the edge. The diameter of the lawn is about 50 feet A. How much grass is in this lawn?
Answer:
hope it helps this what I think the answer is
Need help!!!! PLZ I don't know
Answer:
Step-by-step explanation:
First factor the polynomials and reduce the fractions.
Help me please and thank you
Answer:
i think your answer would be 12
Step-by-step explanation:
there are 12 dots, so 12 robots were built
hope this helps! have a nice day!
Please I need help please!!!!!!!
Answer:
1/3= 137.51 so b
Step-by-step explanation:
Answer:
B, θ=137,51°Step-by-step explanation:
[tex]\alpha =\frac{l}{r}[/tex]
alpha are the angle in radian.
l= lenght of de arc=12cm
r=radius=5cm
[tex]\alpha =\frac{12}{5} \\\\[/tex]
Converting the radian angle to degrees:
α--->θ
π--->180°
θ=(180°*α)/π
using the fact that: α=12/5
θ=(180°*12)/5
θ=432°/π
θ=137,5098°
θ=137,51°
x^2-4x+3=0 write it in standard form.
solve by completing the square.
solve by quadratic formula
Answer:
x
=
2
±
√
7
Explanation:
there are no whole numbers which multiply to - 3
and sum to - 4
we can solve using the method of
completing the square
the coefficient of the
x
2
term is 1
∙
add subtract
(
1
2
coefficient of the x-term
) 2 to x2 − 4 x ⇒ x 2 +2(− 2 ) x + 4 − 4 − 3 = 0 ⇒ ( x − 2 )2 − 7 =0 ⇒ ( x − 2 ) 2 = 7
take the square root of both sides
⇒ x − 2 = ± √ 7 ←
note plus or minus
⇒ x = 2 ± √ 7←
exact solutions
Step-by-step explanation:
x²-4x+3=0
x²-4x=-3
take half of -4 square it and add it to both side
x²-4x+(-2)²=4-3
(x-2)²=1
x-2=±1
x=2±1
x=1,3
Sorry for asking again.
The options are cut out so it says
2
3
4
5
Answer:
2
Step-by-step explanation:
For A and B, count to the y axis (vertical line)
Can someone help me? The first person to get it correct gets brainliest.
) The diagram shows a quadrant of a circle . If the curved edge is 15 cm long, what is the length of a straight edge?
Answer:
9.55 cm
Step-by-step explanation:
A quadrant of a circle is 1/4 of a circle.
Since the curved edge is 15 cm, a full circle would be 60 inches.
60/Pi = diameter
diameter = 60/3.14 = 19.11 cm
diameter/2 = radius
radius = 19.22/2 = 9.55 cm which is the length of a straight edge.
Elia rode her bicycle from her house to the beach at a constant speed of 18 1818 kilometers per hour, and then rode from the beach to the park at a constant speed of 15 1515 kilometers per hour. The total duration of the rides was 1 11 hour and the distances she rode in each direction are equal. Let b bb be the number of hours it took Elia to ride from her house to the beach, and p pp the number of hours it took her to ride from the beach to the park.
Answer: hello your question is not well written but it seems you are asking for the Total distance covered during the rides hence i will give you a general solution
Total distance travelled during rides = 16.36 km
Total duration of rides = 1 hour
Step-by-step explanation:
Given that :
b = number of hours from house to beach
p = number of hours from beach to park
since the total duration of the rides = 1 hour
hence: b + p = 1 ------ ( 1 )
Also ; speed from house to beach = 18 km/hr
speed from beach to park = 15 km/hr
Given that distance covered in both directions are equal and distance = s * t
Hence distance covered : 18b = 15p ------ ( 2 )
determine the total distance travelled
b + p = 1 ------ ( 1 )
18b = 15 p ----- ( 2 )
from equation 1 : b = 1 - p
18 ( 1 - p ) = 15p
18 = 15p + 18p
p = 18 / 33 = 6/11
back to equation 1
b + 6/11 = 1
hence b = 1 - 6/11 = 5/11
Distance covered in one direction
18 ( 5/11 ) = 15 ( 6/11 )
90 / 11 = 90 /11
hence Total distance covered = ( 90 / 11 ) * 2 = 16.36 km