Answer:
29.40 cm
Step-by-step explanation:
total length = length of each rod x number of rods
4.2 x 7 = 29.40cm
A lawn sprinkler is set in the corner of the backyard. Thomas has the sprinkler set to rotate at 90 degrees. He knows that the sprinkler will spray 30 feet. If his backyard is 850 square feet, does Thomas have the sprinkler set to reach most of his yard? Explain your reasoning and any suggestions you might have for Thomas if you find he does not have the sprinkler set properly.
Answer:
yes I think he does because of the distance of the sprinklers reach.
Stephan has a piece of wood that measures 18 inches long and 12 inches wide. He wants to make a tray with sides 2 inches high. Maurice says that he can make a tray that has a base measuring 10 1/2 inches by 10 1/2 inches. Is he correct?
Answer:
he isn't
Step-by-step explanation:
The wood has dimensions of 18 x 12
If He wants the tray to have a height of 2, subtract 2 x 2 from both the length and the width
18 - 4 = 14
12 - 4 = 8
the highest possible dimensions of the tray can be 14 x 8
10 1/2 x 10 1/2 is greater than 14 x 8. so he is not correct
The ratio of boys to girls in a volleyball club was 6: 8. There were 36 boys.
How many girls were there in the club?
Answer:
Might be wrong but 27. Hope this helps
Answer:
48 girls!
Step-by-step explanation:
boys = 6x
girls = 8x
6x = 36
x = 36/6 = 6
girls = 8x = 8 x 6 = 48
I hope im right!
the product of -5 and the number is 35 what is the number
a. 40
b. 30
c. -7
d. 7
Step-by-step explanation:
-5y=35
=35÷(-5)
= -7
=-5×-7
=35
Find the surface area of the figure.
11.1 m
3.5 m
4 m
4 m
4 m
Answer and Step-by-step explanation:
Work is in picture.
#teamtrees #PAW (Plant And Water)
yo please i just need the right answers fr fr i’ll give u a brainliest
Answer:
Step-by-step explanation:
Sphere
1.V≈113.1m³
V=4 /3πr3=4/ 3·π·33≈113.09734m³
Sphere
2.R =6cm
Volume of sphere = 4/3πr^3
4/3πr^3=288π
r^3=288*3/4
r^3=216
r=6cm
Cone
3.V≈314.16m³
V=πr^2h/ 3=π·52·12/ 3≈314.15927m³
Cone
4. h≈2.55m
Using the formula
V=πr^2h/ 3
Solving for h
h=3V/ πr^2=3·96/ π·6^2≈2.54648m
Cylinder
5.V≈75.4m³
Solution
V=πr2h=π·22·6≈75.39822m³
Cylinder
6.h≈0.95m
Using the formula
V=πr2h
Solving for h
h=V/ πr^2=75/ π·5^2≈0.95493m
Hope this helped!!!
The high temperatures for the last seven days are: High Temperatures: 81, 78, 83, 89, 80, 87, 78
Find the RANGE of the temperatures.
Answer:
78 is the range of high temperature
Help with this plz.
Solve the system of equations using the elimination method.
Let's solve your system by elimination.
8x+y=−16;3x−y=5
8x+y=−16
3x−y=5
Add these equations to eliminate y:
11x=−11
Then solve: 11x=−11 for x:
11x=−11
11x
11
=
−11
11
(Divide both sides by 11)
x=−1
Now that we've found x let's plug it back in to solve for y.
Write down an original equation:
8x+y=−16
Substitute: −1 for x in 8x+y=−16:
(8)(−1)+y=−16
y−8=−16(Simplify both sides of the equation)
y−8+8=−16+8(Add 8 to both sides)
y=−8
Answer:
x=−1 and y=−8
Answer:Multiply each equation by a suitable number so that the two equations have the same leading coefficient.
Subtract the second equation from the first.
Solve this new equation for y.
Substitute y = 2 into either Equation 1 or Equation 2 above and solve for x.
Step-by-step explanation:
PLEASE HELP!!! What is the value of x?
A. 4
B. 4√3
C. 8
D. 8√3
Answer:
65
Step-by-step explanation:
PLS I NEED HELP
Which angle pair relationship shows that two lines are parallel?
a. Two alternate interior angles are supplementary.
b. Two vertical angles are congruent.
c. Two corresponding angles are congruent.
d. Two adjacent angles are supplementary.
Answer:
The answer is C I know that is right
can you guys help me?? I’m still learning this topic and I can’t do it
Answer:
15
Step-by-step explanation:
Because the first house is 5 toothpicks and the rest are all 4 toothpicks
14*4=56 (the amount of the houses that are 4 toothpicks)
56+5=61 (The house that is 5 toothpicks)
7th grade math unit 5 class review#1 equations and inequalities
A red, green, and blue book are on a shelf. You randomly pick one of the books. Without replacing the first book, you choose another book. What is the probability that you picked the red and blue book?
Answer: The probablity is 1/3 I think :)
Step-by-step explanation:
Four aliens were born in two year intervals. The sum of
their ages is 36. How old is each alien?
Show work
Answer:
6, 8, 10, and 12
Step-by-step explanation:
x + (x + 2) = (x + 4) + (x + 6) = 36
4x + 12 = 36
subtract 12 rom each side of the equation:
4x = 24
divide both sides by 4:
x = 6
x + 2 = 8
x + 4 + 10
x + 6 = 12
How does theoretical probability of the event flip heads change when a coin is flipped more times in a experiment
Answer:
The theoretical probability will not change.
Step-by-step explanation:
The theoretical probability will always be based on logic. If a fair coin has a head and tail, then it’s an even 50/50 chance of the coin landing on either side. If the coin is flipped more than once, the theoretical probability will stay the same.
The theoretical probability of the event flip heads does not change when a coin is flipped more times in a experiment.
What is theoretical probability?Theoretical probability of an event is the ratio of number of favorable outcome to the total number of outcome of that event.
As the probability of an event can not be more than the number 1. Thus he probability of failure of a event is equal to the difference of the 1 to the success of the event.
The binomial experiment is the experiment in which the total number of output values is 2, therefore it is known as binomial experiments.
The number of independence variable in case of binomial experiments is fixed. Both the two output has the 1/2 chances to occur.
The theoretical probability, of an event is always remain same. It does not depends on the number of experiments or trial.
For the experiment of flipping a coin, there would only be two outcomes either a head or a tail. The theoretical probability to occur head will be 1/2 or 50 percent. This will be similar for the tail face.
Hence, the theoretical probability of the event flip heads does not change when a coin is flipped more times in a experiment.
Learn more about the probability here;
https://brainly.com/question/24756209
help pleaseeeeeeeeee
Answer:
8 students in each van, 22 students in each bus
Step-by-step explanation:
Let's say v is number of students in each van
and b the number of students in each bus.
Let's make the equations:
8v + 8b = 240
4v + 1b = 54
8v + 8b = 240
v + b = 30
b = 30 - v
now let's use b = 30 - v and insert it into 4v + 1b = 54
4v + (30 - v) = 54
3v + 30 = 54
3v = 24
v = 8
b = 30 - v = 30 - 8 = 22
Abigail and Grace collected clovers. Abigail collected clovers with
4 leafs and Grace collected clovers with 5 leafs. They counted the
number of leafs in both collections and realized that it is the
same. What is the least number of leafs that each collection must
have?
Answer:
20
Step-by-step explanation:
To find the least number of leafs that each collection must have, we find the L.C.M of both numbers. So L.C.M of 4 and 5.
The prime factors of 4 = 2²
The prime factors of 5 = 5
So L.C.M of 4 and 5 = 2² × 5 = 20
So, the least number of leafs that each collection can have is 20 leafs.
I need to solve these two equations using either substitution or elimination
1/4x - 1/2 = 5
3x + 2/3y = -40
Answer:
y = -15
x = -10
Step-by-step explanation:
1/4x - 1/2 = 5 (1)
3x + 2/3y = -40 (2)
Multiply (1) by 4
1/4x - 1/2 = 5
1/4x * 4 - 1/2y * 4 = 5 * 4
4/4x - 4/2y = 20
x - 2y = 20 (3)
Multiply (2) by 3
3x + 2/3y = -40 (2)
3x * 3 + 2/3y * 3 = -40 * 3
9x + 6/3y = -120
9x + 2y = -120 (4)
x - 2y = 20 (3)
9x + 2y = -120 (4)
Using elimination method, Add (3) and (4)
9x + x = -120 + 20
10x = -100
x = -100/10
x = -10
Substitute x = -10 into (3)
x - 2y = 20 (3)
-10 - 2y = 20
-2y = 20 + 10
-2y = 30
y = 30/-2
y = -15
y = -15
x = -10
what are these links people send when they answer a question what do they mean
Answer:
I'm not sure what you mean by this question. Please clear it up.
Step-by-step explanation:
Answer:
they are possibly ip grabbers/will redirect you to some scam page don't click on them (obviously)
Step-by-step explanation:
Doug is going on a 340-mile trip. If he drives for 5 hours at an average speed of 55 miles per hour, how many miles will he still have left to go on his trip?
Lisa's bedroom is 6 meter long and 4 meters wide how much carpet will Lisa need to cover the whole floor of her bedroom?
Answer:
24 m²
Step-by-step explanation:
Given that:
Dimension of bedroom = 6 meter by 4 meter
To obtain how much carpet Lisa would need to cover the floor of her bedroom, we calculate the area of the room.
From the dimension given, the area of the room can be obtained using the Area if a rectangle formular :
Area of room = Length * width
Area of room = 6m * 4m
Area of room = 24 m²
Carpet required is 24m² of carpet
Answer:
24m
Step-by-step explanation:
if you times 6 and 4 that equals 24 really easy problem.
HELP ASAP!!!!!! please show work too! tysm!
Answer:
9/50
Step-by-step explanation:
18/100 they will both be divided by two 18 divided by two is 9 and 100 divided by two is 50.2 is the only number both can be divided by.
Answer:
Option A 9/25 is correct.
Step-by-step explanation:
so his data shows that the yellow balloon was chosen 18 times out of 50 so it is a 18/50.
now if we simplify that we get 9/25.
Have a nice day!
Find the Volume of a cylinder with a diameter of 16 inches and a height of 9 inches
Answer:
d = 16 in then r = 8 in
V = h * π * r²
V= 9in * π * (8 in)²
V = 1809.55 in³
Answer:
It's D
Step-by-step explanation:
SOMEONE PLZ HELP ME plzzzzzzz
Answer:
B
Step-by-step explanation:
What is the volume of this sphere
Use π=3.14 and round your answer to the nearest hundredth
make a conjecture as to what number comes is next
-15,-10,-4, 3, 11, ______
Given:
The sequence is:
-15,-10,-4, 3, 11, ______
To find:
The next number.
Solution:
We have,
-15,-10,-4, 3, 11, ______
Here, the difference between two consecutive terms are:
[tex]-10-(-15)=-10+15[/tex]
[tex]-10-(-15)=5[/tex]
Similarly,
[tex]-4-(-10)=6[/tex]
[tex]3-(-4)=7[/tex]
[tex]11-3=8[/tex]
It is clear that the difference difference between two consecutive terms is increasing by 1. So, the next difference must be (8+1)=9.
Let the next number be x. Then,
[tex]x-11=9[/tex]
[tex]x=9+11[/tex]
[tex]x=20[/tex]
Therefore, the next number of the sequence is 20.
PLEASE HELP ASAP WILL MARK BRAINLIEST
Answer:
6 -> 4/10
7 -> s √144 in
8 -> 0.4
9 -> s = ∛999 in
10 -> d = 3
Lateena solved the equation below. Is her solution correct? Explain why or why not?
Answer:
No
Step-by-step explanation:
she should have just factored x² - 6x - 7 = 0
(x + 1)(x - 7) = 0
x = -1, x = 7
Which expression is equivalent to 3\tfrac{1}{3}-8\tfrac{2}{3}3
3
1
−8
3
2
?
Answer:
and yeah ikr I don't understand why
Hello, I need help! The question is "Today you will look over the following problem that Nancy worked and explain what she did incorrectly and why it does not work. Then tell me what information Nancy would need to know in order to use this theorem correctly"
Answer:
Step-by-step explanation:
Remark
The ratios are certainly correct but that doesn't mean that they show similarity. SSA is a very dangerous proposition to use. Redraw triangle DEF of that DF is going to upwards to your right hand side. Make E as it was before. Why isn't this right?
It isn't right because E has gone from being an acute angle to an obtuse angle (an angle larger than 90 but less than 180).
The ratios are still true, but the angles do not match. So the whole answer is incorrect.