Answers
Answer:
9
Step-by-step explanation:
90/10 =9
Related Questions
what's a rational number between 13 and 21
Answers
Answer:
21
Step-by-step explanation:
Simplify.
Remove all perfect squares from inside the square root. Assume x is positive.
√ 20x^8
Answers
Please help I’ll mark you as brainliest if correct
Answers
Answer:
B
Step-by-step explanation:
pls help!
find the area
Answers
Answer:
Area of circle = πr²
22/7*11*11
2662/7
380.13 in² is your answer ☺️☺️☺️
Solve for x using
cross multiplication.
4x - 4
4x - 4
7
x + 3
x = [?]
Answers
x=1 hope this helps
Answer:
x = 29
Step-by-step explanation:
Multiply both sides by 7:
[tex]4x-4=\frac{7x+21}{2}[/tex]
Multiply both sides by 2:
[tex]8x-8 = 7x+21[/tex]
Subtract 7x from both sides:
[tex]x-8=21[/tex]
Add 8 to both sides
[tex]x=29[/tex]
What is the slope of a line parallel to the line whose equation is 9x+3y=-27
Fully simplify your answer.
Answers
Answer:
One example would be y = -3x
Step-by-step explanation:
We can more easily find a line parallel to the given equation if it is put in slope intercept form.
3y = -27 - 9x
y = -3x - 9
So the slope is -3. You can choose any line also with a slope of -3.
Question 5 (1 point)
If y varies jointly as x and z and y = 18 when x = 2 and z = 3, find y when x is 5 and z is 6.
Answers
Answer:
y = 90
Step-by-step explanation:
If y varies jointly as x and z, then;
y = kxz
If y = 18 when x = 2 and z = 3
18 = k(2)(3)
18 = 6k
k = 18/6
k = 3
To get y when x = 5 and z = 6
y = kxz
y = 3(5)(6)
y = 15*6
y = 90
Hence the value of y is 90
The vertex of this parabola is at (2,-4). When the x value is 3, the y value is -1. What is the coefficient of the squared expression in the parabolas equation?
A.1
B.-2
C.5
D.3
Answers
Answer:
the coefficient of the squared expression in the parabolas equation: D. 3
Step-by-step explanation:
y = a (x-h)² + k parabola equation
y=-1 and x=3 vertex(h,k): (2,-4)
-1 = a * (3-2)² + (-4)
-1 = a - 4
a = -1 + 4 = 3
equation: y = 3 * (x-2)² -4
Answer:
d !
Step-by-step explanation:
The diameter of a circle is 10 ft. Find its area to the nearest tenth.
Answers
Answer:
15.70
Step-by-step explanation:
Answer:
78.5
Step-by-step explanation:
Formula: a = πr², r = d/2
Given: π = 3.14, d = 10
Sub: a = (3.14)r²
Find r.
r = 10/2
r = 5
Sub: a = (3.14)5²
Simplify: a = (3.14)25
Solve: a = 78.5
The answer is 78.5.
If this truly helped you, help me out by thanking me.
-Xax.
11x-6=7x+10 please help i need this bad for my grade
Answers
Answer:
x = 4
Step-by-step explanation:
Answer:
x=4
Step-by-step explanation:
Step 1: Subtract 7x from both sides.
11x−6−7x=7x+10−7x
4x−6=10
Step 2: Add 6 to both sides.
4x−6+6=10+6
4x=16
Then you divide both sides by 4
and get x=4
Hope it helps :)
I need help understanding these problems.
Answers
Answer: 7. x= 26, 9. x=11/y=3
Step-by-step explanation: Sorry for the terrible photo quality. Comment if you need more help : )
So, for the first examples given set all of the equations as equal to the other angle equation given.For problems like number 9, solve for the x's first (or whichever variable there's more of) you should solve for the x's like you did for the first problem, then set the equation to an A+B=180 format. The reason for this is two angles (in some cases more) on a straight line together will always equal 180 degrees. For 10. set the equations with x in them to that A+B=180 format. Then once you've found x plug it into 6x-7. When you have that answer set 8y+17 equal to the answer you got and solve for y.For 11 and 12. These ones can be a bit more complicated because of their visual appearance, however you just need to combine the earlier steps taken to solve the first couple of equations. Beginning with 12. If you ever see a Z pattern, know that the sides facing > and < ( the inside angles of the Z) are equal to each other. So you set the equations with x equal to each other, and once you get x plug it into the equation inside of the triangle. Since you've already been given 90, set the equation up like this: 43+90+(7y-20)=180. Because all the angles in a triangle are equal to 180 degrees. Then just solve for y. y=9Lastly for number 11. This one is by-far the hardest of all of them. You have to adjust how you look at the problem. You'll see that if you add (3x+49) it's actually congruent to (7x-23). once you figure out x you should then plug x into 3x giving you 54. The set up the equation like this 11y-1=54. That will give you y=5.Need help if you have the time and i need explanation for this (NO LINKS PLS)
Answers
Answer:
ask ur question i will try to help
Step-by-step explanation:
Which number has a greater value than |-2.6|?
A. -2.9
B. -|7|
C. -2.6
D. |-6|
Answers
Answer:
B (7)
Step-by-step explanation:
If you put a number in absolute value bars,
Hannah invested $96,000 in an account paying an interest rate of 6\tfrac{1}{2}6 2 1 % compounded quarterly. Evelyn invested $96,000 in an account paying an interest rate of 6\tfrac{1}{4}6 4 1 % compounded monthly. To the nearest hundredth of a year, how much longer would it take for Evelyn's money to double than for Hannah's money to double?
Answers
Answer:
.37 years
Step-by-step explanation:
I did this one in delta math
Please help me with this!
Answers
Answer:
Step-by-step explanation:
Its going to be a negative
negative, if wrong so sorry
What is the area of the right angle
Answers
Answer:
3.84 inches squared
Step-by-step explanation:
The area of a triangle is given by the formula:
Area = 1/2 * base * height
In this problem, our side lengths are:
Base = 2.4 inches
Height = 3.2 inches
So, our area can be found:
Area = 1/2 * 2.4 * 3.2 = 3.84 inches squared
Can someone help me with this?
Answers
Answer:
do you still need help?
Step-by-step explanation:
A. 16
B. 14
C. 18
D. 24
Answers
The midpoint AB is M (1,1). If the coordinates of A are (-3,-3), what are the coordinates of B
Answers
Answer:
(2,−4).
Step-by-step explanation:
Hope this helps and have a wonderful day!!!!
A survey found that 20% of the people in Fiji drive the car without seatbelt. If 3 people are randomly selected, find the probability that at least 2 drive without seat.
Answers
Answer:
0.104 = 10.4% probability that at least 2 drive without a seatbelt.
Step-by-step explanation:
For each person, there are only two possible outcomes. Either they drive without a seatbelt, or they do not. The probability of a person driving without a seatbelt is independent of any other person. This means that we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
And p is the probability of X happening.
20% of the people in Fiji drive the car without seatbelt.
This means that [tex]p = 0.2[/tex]
3 people are randomly selected
This means that [tex]n = 3[/tex]
Find the probability that at least 2 drive without a seatbelt?
This is:
[tex]P(X \geq 2) = P(X = 2) + P(X = 3)[/tex]
In which
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 2) = C_{3,2}.(0.2)^{2}.(0.8)^{1} = 0.096[/tex]
[tex]P(X = 3) = C_{3,3}.(0.2)^{3}.(0.8)^{0} = 0.008[/tex]
[tex]P(X \geq 2) = P(X = 2) + P(X = 3) = 0.096 + 0.008 = 0.104[/tex]
0.104 = 10.4% probability that at least 2 drive without a seatbelt.
-x+4=-9 help me please
Answers
Answer:
-13 = x
Step-by-step explanation:
:))
Answer: x = 13
Step-by-step explanation:
First subtract -4 on both sides because your adding by 4
-x + 4 = -9
- 4 -4
The 4 - 4 cancels out
So, -9 - 4 is -13
Then we change the sign because we cannot leave x negative.
-x = -13
x = 13
find the value for x
Answers
Answer:
X = 6°
Step-by-step explanation:
In a set of parallel lines, the opposite angles and corresponding angles are similar. Since the opposite angle of 110° is the corresponding angle of 19x - 4, you can conclude that 19x - 4 = 110° ⇒ 19x = 114° ⇒ x = 6°.
What number does point A represent???
Answers
Answer:
1 1/2
Step-by-step explanation:
Help with this please
Answers
Answer:
its 77 degrees
Step-by-step explanation:
the angles altogether are 180 so you subtract 61 and 42 and get 77
help is appreciated as soon as possible, look at the photo!
Answers
Use a net of the square puritans if Jessica ty to find the surface area of pyramid 8 and 8
Answers
Answer:
Step-by-step explanation:
Hhff
Select the value of x that makes the equation “16 = -4(x - 1) + 4” true?
• -2
• 2
• -4
• 4
Answers
Answer:
[tex] - 4(x - 1) = 16 \\ = > - 4x + 4 - 16 = 0 \\ = > - 4x - 12 = 0 \\ = > - 4x = 12 \\ = > x = - 3[/tex]
If you multiply four times the sum of my number and 2,
you get 28. What's my number?
Answers
Answer:
5
Step-by-step explanation:
5+2 = 7
7x4 = 28
What is the average weight of the kittens in the shelter?
Pls help
Answers
Answer:
0.41
Step-by-step explanation:
0.25 0.375 0.5 0.625
(ANSWER IN 2 MINUTES AND I SWEAR I'LL GIVE YOU BRAINLY!!!!!!!!!!!!!)
Analyze the following statements and indicate which one best describes the difference between the population and the sample.
A) The sample is all members of a specified group while the population is part of a sample used to describe the whole group
B) In Statistics, the terms population and sample are synonymous with one another and can be used interchangeably
C) The population is all members of a formal organization while the sample is the members of the organization that volunteer to participate in the study
D) The population is all members of a specified group while the sample is the part of a population used to describe the whole group