Find the volume of a cone
What is the value of x in the equation −30x+855=−345?
The value of x in the given equation −30x+855=−345 is 4.
What is an equation?An equation is formed of two equal expressions, equated together with the help of an equal sign '='.
The value of x can be written as,
[tex]-30x+855=-345\\\\-30x=-345-855\\\\-30x=-1200\\\\30x=1200\\\\x=4[/tex]
Hence, the value of x in the given equation −30x+855=−345 is 4.
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Write down the next two terms of this pattern :8,18,30,44,......
Answer:
60, 78
Step-by-step explanation:
To find a pattern, try experimenting.
Going from 8 to 18 is + 10
Going from 18 to 30 is + 12
Going from 30 to 44 is + 14
We see that we add 2 more extra than the term before (+10, +12, +14)
So, we just add 2 for the next 2 terms which will be +16 and + 18
which are 44 + 16 = 60
and 60 + 18 = 78
Answer:
im not sure but the pattern im seeing is adding by even numbers i could be wrong but I think the next two numbers are 60, and 78
Step-by-step explanation:
8 + 10 is 18
18+ 12 is 30
30 +14 is 44
so i did
44+16 and got 60
and 60 + 18 is 78.
Oliver completed his project in no more than twice the amount of time it took Karissa to complete her project. Oliver spent 4 and one-fourth hours on his project. If k represents the amount of time that it took Karissa to complete her project, which inequality can be used to represent the situation? 4 and one-fourth less-than 2 k 4 and one-fourth less-than-or-equal-to 2 k 4 and one-fourth greater-than 2 k 4 and one-fourth greater-than-or-equal-to 2 k.
The time taken by Oliver to complete the work is less than or equal to twice the work done by Karissa.
Option B shows the correct equation of inequality to write the time taken to complete the work.
What is inequality?Inequality can be defined as a relation that makes a non-equal comparison between two numbers or other mathematical expressions.
Given that Oliver completed his project in no more than twice the amount of time it took Karissa to complete her project. Also, the time taken to complete the project is,
Oliver = 4 and one-fourth hours
Karissa = K hours
As per the given condition, the work done by Oliver should not be more than twice the work done by Karissa. It can be equal or less. So we can write this in equation form as,
Oliver [tex]\leq[/tex] 2 Karissa
[tex]4\dfrac {1}{4} \leq 2K[/tex]
Hence Option B shows the correct equation of inequality to write the time taken to complete the work.
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Answer:
b
Step-by-step explanation:
How would you explain the differences between graphing x > 4 and x ≥ 4 to a peer who missed this lesson?
Answer:
x > 4 you would graph with an open circle and x ≥ 4 you would graph with a closed circle. The question x is greater than or equal to 4 you would have the line going to the right, the same thing with x > 4. Hope this helped.
Step-by-step explanation:
What other information do you need in order to prove the triangles congruent using the SAS Congruence Postulate?
Answer:
Step-by-step explanation:
AC is perpendicular to BD.
Further explanation
We observe that both the ABC triangle and the ADC triangle have the same AC side length. Therefore we know that is reflexive.
The length of the base of the triangle is the same, i.e., .
In order to prove the triangles congruent using the SAS congruence postulate, we need the other information, namely . Thus we get ∠ACB = ∠ACD = 90°.
Conclusions for the SAS Congruent Postulate from this problem:
∠ACB = ∠ACD
- - - - - - - - - -
The following is not other or additional information along with the reasons.
∠CBA = ∠CDA no, because that is AAS with ∠ACB = ∠ACD and
∠BAC = ∠DAC no, because that is ASA with and ∠ACB = ∠ACD.
no, because already marked.
- - - - - - - - - -
Notes
The SAS (Side-Angle-Side) postulate for the congruent triangles: two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle; the included angle properly represents the angle formed by two sides.
The ASA (Angle-Side-Angle) postulate for the congruent triangles: two angles and the included side of one triangle are congruent to two angles and the included side of another triangle; the included side properly represents the side between the vertices of the two angles.
The SSS (Side-Side-Side) postulate for the congruent triangles: all three sides in one triangle are congruent to the corresponding sides within the other.
The AAS (Angle-Angle-Side) postulate for the congruent triangles: two pairs of corresponding angles and a pair of opposite sides are equal in both triangles.
Learn more
Which shows two triangles that are congruent by ASA? brainly.com/question/8876876
Which shows two triangles that are congruent by AAS brainly.com/question/3767125
About vertical and supplementary angles brainly.com/question/13096411
The pair of triangles that are congruent by the ASA criterion i:
The pair of triangles that are congruent by the SAS criterion is
Step-by-step explanation:
The pair of triangles that are congruent by the SAS criterion is Δ BAC and ΔRQP.hope this helps
Choose the sentence that explains how the bonding pattern in metals makes them good conductors of electricity
The sentence that explains how the bonding pattern in metals makes them good conductors of electricity is A. They are willing to give up their valence electrons.
What are valence electrons?Valence electrons are the electrons in the outermost shell, or energy level, of an atom, which participate in the formation of a chemical bond when the outer shell is open.
Answer Options:A. They are willing to give up their valence electrons.
B. Their nucleus has more protons than neutrons.
C. They are malleable.
D. They have a simpler electron arrangement.
Thus, the sentence that explains how the bonding pattern in metals makes them good conductors of electricity is Option A.
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Your sock drawer has two white socks, six brown socks, and six black
socks. You randomly pick a sock and put it on your left foot and then pick
another sock and put it on your right foot. You leave the house with a white
sock on your left foot and a brown sock on your right foot. *
Answer
The probability of this occurring is 1/7
Step-by-step explanation:
Okay, here is a probability question.
From the question, we can identify the following;
Total number of socks = 2 + 4 + 2 = 8 socks
Since we are not given the order in which the socks was worn, we can assume any order.
Let’s say the right leg socks was worn first.
From the question, the socks on the right leg is a brown one.
So now let’s calculate the probability of selecting a brown socks out of the mix
That would be ;
number of brown socks/ total number of socks = 4/8 = 1/2
Now, for the left foot, we are having white sock here.
Kindly recall that since we already have a sock on the right foot, we have 7 socks left to pick from.
Now we need the probability of picking a white sock from the total 7. That would be ; 2/7
So the probability of both action occurring is simply the product of both probabilities and that is ;
1/2 * 2/7 = 1/7
Two sides of the rectangle differ by 3. 5 cm find the dimension of the rectangle if its perimetre is 67cm
Answer:
Step-by-step explanation:
Two sides of the rectangle differ by 3.5 cm means that one side is 3.5 cm more than the other side.
If width = x cm, then length = x + 3.5
Perimeter = 67 m
2*(length +width) = 67
2*(x + 3.5 + x) = 67
2*(2x + 3.5) = 67
2*2x + 2*3.5 = 67
4x + 7 = 67
4x = 67 - 7
4x = 60
x = 60/4
x = 15 cm
Width = 15 cm
Length = 15 + 3.5
= 18.5 cm
PLEASE HELP MEEEEEE!!!?
Answer: The answer is B. 800 feet.
Step-by-step explanation: Look at the place on the x-axis (time) where 2.5 is. Now, look where the line intersects the vertical line of 2.5 minutes. It is at around 800 feet, so B is the correct answer.
geometry pls help plssss
find equations and without absolute value for the first one
Answer:
i can't rly read number 22 srry
b x+1>0=x>-1
c x+1<0=x<-1
Hope This Helps!!!
Lashonda made $95 for 5 hours of work.
At the same rate, how many hours would she have to work to make $342?
Answer:
I think 18
Step-by-step explanation:
95 divided by 5 is 19 and 342 divided by 19 = 18.
can someone help? just answer this
Answer:
D) 2•10^9
Hopes this helps wish you well
Combine like terms:
12x+4x-7y+45b+78a-44b+1a+1z+0d+1.1a+1.1a+2+2+2
PLEASE PLEASE HELP
Answer:
16x -7y +b +81.2a +z +6
Step-by-step explanation:
Coefficients of terms with the same variable are added when like terms are combined.
12x+4x-7y+45b+78a-44b+1a+1z+0d+1.1a+1.1a+2+2+2
=(12 +4)x +(-7)y +(45 -44)b +(78 +1 +1.1 +1.1)a +(1)z +(2+2+2)
= 16x -7y +b +81.2a +z +6
I just need the y on the last one
Thank you
Do these ratios form a proportion?
4 quarts : 6 weeks
12 quarts : 16 weeks
yes
no
Submit
Answer:
No, these ratios aren't proportional
Step-by-step explanation:
4:16 base ratio is 1:4
12:16 base ratio is 1:1.333333333
For a relationship to be proportional, the base ratios must be equal.
Please help, I’ll mark your answer as brainliest.
Already answered here: https://brainly.com/question/26919792
Xavier can work no more than 40 hours in a week. He has already worked 24 hours this week. What is the maximum number of 8-hour days Xavier can work for the rest of the week? 2 3 4 5
Answer:
The answer is A. He can only work 2 more days with 8 hours a day
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
Find the sum, if it exists, of the infinite geometric series = 102+112. 2+123. 42+…
Answer:
it does not exist
Step-by-step explanation:
if it is a geometric sequence, there must be a common ratio or multiplication factor between neighboring terms :
102 × r = 112.2
r = 112.2/102 = 1.1
is 112.2 × 1.1 = 123.42 ?
yes.
so, it is a geometric sequence with the common ratio of 1.1.
the problem is now : the ratio is > 1.
that means the sequence tends are growing, and growing, and the sum is therefore rather "exploding" than converging.
for the sum to converge to a specific number the individual terms need to get smaller and smaller in absolute numbers.
with r > 1 this is impossible, so there is no sum for this sequence (with n going to infinity, so does the sum, and as "infinity" is not a value per se, the sum does not exist).
Factor completely 2x2 9x 4. (2x 2)(x 2) (2x 1)(x 4) (2x 4)(x 1) (2x 2)(x 4).
Factors of the given expression are [tex](x+4), (2x+1)[/tex]
Given expression is
[tex]2x^2 + 9x+4[/tex]
What is a factor?A factor is a number that divides another number completely.
Let us split the middle term as:
[tex]2x^2 + 8x + x+4\\\\2x(x+4)+1(x+4)\\\\(x+4) (2x+1)[/tex]
Therefore, factors of the given expression are [tex](x+4), (2x+1)[/tex]
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Answer:
Your Answer Mate- (2x + 1)(x + 4)
Step-by-step explanation:
(2x^2 + 8x)(x + 4).
(2x^2 + 8x)
2x(x + 4)
1(x+4)
Your factors are now (2x + 1)(x + 4)
is the following data an example of a linear function
Answer:
Yes it is.
Step-by-step explanation:
(i will give u 10 extra points if you help) Thanks :)))
Answer:
D
Step-by-step explanation:
mr castle shares out 56 marbles between emily and asif in the ratio of 7:1 how many does each child get?
Answer:
Emily = 49
Asif = 7
Step-by-step explanation:
Let's take the number of marbles given to asif = x
Then, the marbles got by Emily will be 7 times that of asif 7x
Then,
7x + 1x = 56
8x = 56
x = 56/8
x = 7
So, number of marble asif got = x = 7
And number of marbles Emily got = 7x = 7 * 7 = 49
[RevyBreeze]
What is 2 +4s=16 on a graph
15-7 x 2 x 2 to the 3rd power
Answer:
5832
Step-by-step explanation:
15 - 7 = 8
8 × 2 = 16
16 + 2 = 18
18 × 18 × 18 = 5832
PLEASEEEE SIMPLIFYYYYY!!!!!!!!!
(3rs^2t^4)^2/21r^2s^3t^11
Answer:
3r4s7t19
————————
7
Step-by-step explanation:
help me solve the proportion please :(
All of the quadrilaterals in the shape below are squares. Find the area of the shaded
region.
12
3
the area of the shaded region : (9x3)+(12x3) = 27+36=63
The area of the shaded region is equal to the subtraction of the total area to the area of the two small squares and one big square. Then the area of the shaded region is 63 square units.
What is Geometry?It deals with the size of geometry, region, and density of the different forms both 2D and 3D.
All of the quadrilaterals in the shape below are squares.
Then the area of the shaded region will be
The area of the shaded region is equal to the subtraction of the total area to the area of the two small squares and one big square.
Area = 15 × 15 - 3 × 3 - 3 × 3 - 12 × 12
Area = 225 - 9 - 9 - 144
Area = 225 - 162
Area = 63
The area of the shaded region is 63 square units.
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