Answer:
10 days
Step-by-step explanation:
if hes started off with 10 minutes and wants to get to 30 by adding 2 minutes each day itll take him 10 days
The area of the triangle below is centimeters. What is the length of the base? Express your answer as a fraction in simplest form.
Answer:
of the question is in the simple 0.45
A fair coin is tossed four times. a. Find the probability that the outcome is HTTH in that order. b. Find the probability that exactly two heads are obtained.
Answer:Four heads trust me.
A tree grows at the rate of 1½ inches every week. At this rate, how many weeks will it take the tree to grow 20.25 inches?
Can someone help me please
9 bags sorry for the other answer
she has 7 boxes at home, then she goes and buys 6 more from the store, now she has 7 + 6 = 13 boxes of chips, each box of chip has 13 bags, so the total amount of potato chips I guess is 13 * 13 = 169 bags total.
So she split it even among her 9 students, so how many times does 9 go into 169? 169 ÷ 9, has a quotient of 18 with a remainder of 7.
18 * 9 = 162, plus 7 = 169, which is the total amount of potato chips bags.
A rectangle is drawn so that the width is 2 feet shorter than the length. The area of the rectangle is 48 square feet. Find the length of the rectangle.
Given :
Rectangle is drawn so that the width is 2 feet shorter than the length.The area of the rectangle is 48 sq feet.⠀
To Find :
The Length of the rectangle⠀
Solution :
We know that,
[tex]\qquad { \pmb{ \bf{Length \times Width = Area_{(rectangle)}}}}\: [/tex]
So,
Let's assume the width of the rectangle as x and the length will be (x + 2).
⠀
Now, Substituting the given values in the formula :
[tex]\qquad \sf \: { \dashrightarrow (x + 2) \times x = 48 }[/tex]
[tex]\qquad \sf \: { \dashrightarrow {x}^{2} + 2x = 48 }[/tex]
[tex]\qquad \sf \: { \dashrightarrow {x}^{2} + 2x - 48 = 0 }[/tex]
[tex]\qquad \sf \: { \dashrightarrow {x}^{2} +8x -6x- 48 = 0 }[/tex]
[tex]\qquad \sf \: { \dashrightarrow {x} (x +8) -6(x+8) = 0 }[/tex]
[tex]\qquad \sf \: { \dashrightarrow (x +8) (x - 6) = 0 }[/tex]
[tex]\qquad \sf \: { \dashrightarrow x = -8, \: \: x = 6 }[/tex]
⠀
Since, The width can't be negative, so the width will be 6 which is positive.
⠀
[tex]\qquad { \pmb{ \bf{ Width _{(rectangle)} = 6\:ft}}}\: [/tex]
[tex]\qquad { \pmb{ \bf{ Length _{(rectangle)} = 6+2=8 \: ft}}}\: [/tex]
Help me pls fractions pls and thanks
Answer:
A
Step-by-step explanation:
2 x 4 = 8
3 x 4 = 12
2/3 = 8/12
Pls help me I don’t know
Answer: Please give me more information, I am sorry :(
Step-by-step explanation: Please give me more information, I am sorry :(
( But I think is the length of the prism is 2cm ......)
Answer:
Step-by-step explanation:
The length of the prism is 2cm
Hope this helps!
PLS HELP ME, PLS THIS IS DUE FIRST CORRECT ANSWER GETS BRAINLIEST
Answer:
c
Step-by-step explanation:
the number goes to both of the numbers in the equation
arron takes his dog for a walk afer school, he walks 5 blocks east and then 4 blocks north. if he was able to take a direct route home, how many blocks would he need to travel
Hi!
We are given the information found in the picture below.
Note: The directions aren't correct, but the triangle works for this problem.
The "direct path" is the hypotenuse of this triangle.
To find this, we use the Pythagorean Theorem, where [tex]a[/tex] and [tex]b[/tex] are 2 legs of the triangle, and [tex]c[/tex] is the hypotenuse, aka the longest side of any triangle:
[tex]a^2+b^2=c^2[/tex]
We know [tex]a[/tex] and [tex]b[/tex] and want [tex]c[/tex]
[tex]4^2+5^2=c^2[/tex]
[tex]16+25=c^2[/tex]
[tex]41=c^2[/tex]
Therefore, [tex]c[/tex] is approximately [tex]6.403[/tex]
Let I stand for radiation experienced by the person, r stand for distance, and k be the constant of variation. Write an equation of variation representing the relationship between I, r, and k.
The radiation experienced is inversely proportional to distance, Therefore the required equation will be l = k/r
Equation of variationsVariation is defined as the changing of variable parameters. In problems relating to two or more variables, it is seen that the value of variable changes with respect to the other.
Variation can be direct, inverse, partial and joint in nature
Given the following parameters
Let I stand for radiation experienced by the personr stands for distancek be the constant of variation.The radiation experienced is inversely proportional to distance, Therefore the required equation will be l = k/r
learn more on variation here: https://brainly.com/question/6499629
How to do the math for 2d -9= -29
Answer:
d = -10
Step-by-step explanation:
Hey there!
Let's Solve:
2d - 9 = -29 => Step 1: Add 9 to both sides(becasue we are subtracting 9)2d = -20 =>Step 2: Divide both sides by 2(because we are multiplying by 2 in 2d)d = -10-Chetan K
Which is greater 2/4 or 2/3
Answer: I would say 2/3
Step-by-step explanation:
U can see that 2/3 is almost a whole (3/3) while 2/4 is just halfway there
Or
you can turn 2/4 and 2/3 to a decimal
2/4 = 0.5
2/3 = 0.666
0.5 < 0.666
2/4 < 2/3
hope this helps
Answer:
2/3
Step-by-step explanation:
2/3 is greater because 2/4 = 1/2 and 2/3 is a bit greater than 1/2.
3k-4m - 1
2k+3m12
Solve the following equation using elimination method
Step-by-step explanation:
Let's solve your system by elimination.
3k−4m=−1;2k+3m=12
Multiply the first equation by 3,and multiply the second equation by 4.
3(3k−4m=−1)
4(2k+3m=12)
Becomes:
9k−12m=−3
8k+12m=48
Add these equations to eliminate m:
17k=45
Then solve17k=45for k:
17k=45
----
17k
=17
45
17
(Divide both sides by 17)
k=
45
17
Now that we've found k let's plug it back in to solve for m.
Write down an original equation:
3k−4m=−1
Substitute
45
17
forkin3k−4m=−1:
3(
45
17
)−4m=−1
−4m+
135
17
=−1(Simplify both sides of the equation)
−4m+
135
17
+
−135
17
=−1+
−135
17
(Add (-135)/17 to both sides)
−4m=
−152
17
−4m
−4
=
−152
17
−4
(Divide both sides by -4)
m=
38
17
Answer:
k=
45
17 and m=
38
17
what is the value of x in units
Answer:
x = 25
Step-by-step explanation:
ΔBDR ~ ΔQDC
so
(24 + 40)/(15 + x) = 40/x
or
(24 + 40)/40 = (15 + x)/x
24/40 + 40/40 = 15/x + x/x
3/5 + 1 = 15/x + 1
3/5 = 15/x
Cross multiply,
3x = 15*5 = 75
x = 75/3 = 25
A circle has a radius of 10.4 cm the angle at the centre of the sector is 120 calculate the area of the sector
Answer:
sector area: 113.3
Step-by-step explanation:
Convert 18 kilograms to ounces.
Answer:
634.931315 ounces
Step-by-step explanation:
Like that
How many 2/5 pieces of rope can be cut out of 4 4/5 of rope?
Answer:
12 pieces
Step-by-step explanation:
4 4/5 = 24/5 / 2/5 = 12
Can someone please help me
Answer:
is this science or math ?
Step-by-step explanation:
(1) The scores ou an aptitude test for finger dexterity are uonually distributed with meau 250 and
standard deviation 65.
a) What is the probability that a person selected at random will score between 240 and 270 on the
test?
b) Test is given to a random sample of seven people. What is the probability that the mean score,
I for the sample will be between 240 and 270?
Using the normal distribution and the central limit theorem, it is found that there is a:
a) 0.1813 = 18.13% probability that a person selected at random will score between 240 and 270 on the test.
b) 0.4501 = 45.01% probability that the mean score for the sample will be between 240 and 270.
Normal Probability DistributionIn a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
It measures how many standard deviations the measure is from the mean. After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.By the Central Limit Theorem, the sampling distribution of sample means of size n has standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].In this problem:
The mean is of [tex]\mu = 250[/tex].The standard deviation is of [tex]\sigma = 65[/tex].Item a:
The probability is the p-value of Z when X = 270 subtracted by the p-value of Z when X = 240, hence:
X = 270:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{270 - 250}{65}[/tex]
[tex]Z = 0.31[/tex]
[tex]Z = 0.31[/tex] has a p-value of 0.6217.
X = 240:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{240 - 250}{65}[/tex]
[tex]Z = -0.15[/tex]
[tex]Z = -0.15[/tex] has a p-value of 0.4404.
0.6217 - 0.4404 = 0.1813.
0.1813 = 18.13% probability that a person selected at random will score between 240 and 270 on the test.
Item b:
We have a sample of 7, hence:
[tex]n = 7, s = \frac{65}{\sqrt{7}} = 24.57[/tex]
X = 270:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
By the Central Limit Theorem
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{270 - 250}{24.57}[/tex]
[tex]Z = 0.81[/tex]
[tex]Z = 0.81[/tex] has a p-value of 0.7910.
X = 240:
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{240 - 250}{24.57}[/tex]
[tex]Z = -0.41[/tex]
[tex]Z = -0.41[/tex] has a p-value of 0.3409.
0.7910 - 0.3409 = 0.4501.
0.4501 = 45.01% probability that the mean score for the sample will be between 240 and 270.
To learn more about the normal distribution and the central limit theorem, you can check https://brainly.com/question/24663213
Use the graph to solve the system of equations.
Answer:
( -2 , 1 )
Step-by-step explanation:
Add the 2 equations downwards.
( -x+4y=6 ) + ( 2x-y=-5 )...consider the sign of each term.
= x + 3y = 1
Put -2 in x because that's where the graph above shows an intersection of the 2 equations.
-2 + 3y = 1
3y = 3
y = 1.
( x , y) = ( -2 , 1 )
evaluate if x=5 xsquard+10=
Answer:
35!
Step-by-step explanation:
5squared is 25 so you then do 25+10 wich = 35!
FIND THE AREA OF THR FIGURE!
WILL MARK BRAINLIEST IF CORRECT!
I HAVE 5 MINS PLS HURRY
Answer:
231.04
Step-by-step explanation:
Answer:
229.14
Step-by-step explanation:
Multiply 7.5 by 19 for the area of the rectangle.This gets you 142.5.The area of the triangle is 86.64.Now add them together.If I am incorrect in my reasoning, please let me know so that I can plan better for my future answers. Have an amazing day.
please help me I need help
Answer:
23.16 your welcome
Step-by-step explanation:
How do you determine an end behavior of a logarithmic graph?
The end behavior of the parent function is consistent.
As x approaches infinity, the y-values slowly get larger, approaching infinity. As x approaches 0 from the right (denoted as x → 0+), the y-values approach negative infinity.
Help me please.......
Answer:
decompose
numerator
mixed number
Step-by-step explanation:
1. To DECOMPOSE is to break apart a number.
e.g. to decompose 853: 800 + 50 + 3
2. The NUMERATOR is the top number in a fraction (the bottom number is the denominator).
3. A number that has whole number part and fraction part is a MIXED NUMBER, e.g. [tex]6\frac23[/tex]
How to divide 400 by 40
Answer:
10 ez
Step-by-step explanation:
400÷40 it like. 10 ÷ into 100
How many places do you need to move the decimal to the left to write the
number below in scientific notation?
60,000,000,000
O A. 11
B. 12
C. 9
D. 10
Can someone help me pls
Answer: The second option would be the answer
Step-by-step explanation:
Factoring the number is just listing all the whole numbers it can be divided by, and in this case it includes the variable. 16a is dividable by 1, 2, 4, 8, 16, and a; since 16a / a = 16. Apply this to 18b, and 1, 2, 3, 6, 9, 18, and b.
75% of the students are boys. There are 24 boys. What is the total number of students?
Answer: 32
Step-by-step explanation:
We can write the problem like this:
[tex]\frac{75}{100}x=24[/tex]
Then, we can multiply 100 to the equation:
[tex]75x=2400[/tex]
Now, we can divide 2400 and 75:
[tex]x=32[/tex]
Now we can conclude that the amount of students is 32.
Use the drop-down menus below to state the sequence of transformations that maps Figure K onto Figure L in the animation below. Then use those transformations to determine: are the two figures congruent? Use the drop-down menus to explain why or why not.
Answer:
1)Reflection,reflection
2)are congruent because reflections are used
Step-by-step explanation:
You reflect figure K so it's upside down.
Then reflect over the y-axis to make it to figure L
The process of two reflections, one horizontally, then vertically will map the two figures
-Chetan K
