the answer is 3.5
Step-by-step explanation:
c² ::: a² + b²
(4)² ::: (2)² + b²
16 ::: 4 + b²
16-4 ::: b²
/12 ::: b2
b ::: 3.5
pleeeaaasseeee help (questions in photo) will mark brainliest
Answer:
a. 0.8727rad
b. 5.585rad
that should be correct, if not, i apologize T_T
Write the equation of the line tangent to
y = x^3 – 2x + 3 at x = -1.
Answer: y = x + 5
Step-by-step explanation:
When three squares are joined at their vertices to form a right triangle, the combined area of the two smaller
squares is equal to the area of the largest square. Which three squares support this statement?
5 cm
3 cm
Answer:
Top right (one what has 16cm^2 and 9cm^2)
Step-by-step explanation:
The one in the top right and even though I cannot see what the area is of the biggest square, I can tell what it should be the two smaller squares combined
Hope this helps :)
What is the least natural number which when divided by 3,5,6,8,10 and 12 leaves in each case remainder 2 but when divided by 13 leave no remainder.
Answer:
962
Step-by-step explanation:
MMM for step by step its kinda just plug and check
962/3 = 320 R2
962/6 = 160 R2
962/8 = 120 R2
962/10 = 96 R2
962/12 = 80 R2
and finally 962/13 = 74
Connor filled his 150 gallon pool with water in 6.25 hours. How many gallons per hour did he use?
Answer:
24 gallons per hour
Step-by-step explanation:
Connor filled his 150-gallon pool with water in 6.25, to find out how many gallons per hour he used, we have to divide the amount of gallons into every hour. Therefore:
150/6.25
24 gallons per hour.
5. A population has a normal distribution with a mean of 50 and a standard deviation of
10. If a random sample of size 9 is taken from the population, then what is the
probability that this sample mean will be between 48 and 54?
a. 0.060
b. 0.228
c. 0.385
d. 0.399
e. 0.611
Using the normal distribution and the central limit theorem, it is found that the probability is given by:
e. 0.611
Normal Probability DistributionThe z-score of a measure X of a normally distributed variable with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex] is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The z-score measures how many standard deviations the measure is above or below the mean. Looking at the z-score table, the p-value associated with this z-score is found, 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 parameters are given as follows:
[tex]\mu = 50, \sigma = 10, n = 9, s = \frac{10}{\sqrt{9}} = 3.3333[/tex]
The probability that this sample mean will be between 48 and 54 is the p-value of Z when X = 54 subtracted by the p-value of Z when X = 48, hence:
X = 54:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
By the Central Limit Theorem:
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{54 - 50}{3.3333}[/tex]
Z = 1.2
Z = 1.2 has a p-value of 0.885.
X = 48:
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{48 - 50}{3.3333}[/tex]
Z = -0.6
Z = -0.6 has a p-value of 0.274.
0.885 - 0.274 = 0.611, hence option e is correct.
More can be learned about the normal distribution and the central limit theorem at https://brainly.com/question/24663213
what is the total EXACT area of the composite figure made up of two triangles, a rectangle, and a semicircle.
Answer:
637
Step-by-step explanation:
rectangle =
12*16*2 = 384
triangle = 12*16/2
= 96
semi circle = pie*hyp^2/2
= pie * (sqrt(12^2+16^2))^2/2
=157
Three $1 bills are equal to _____ cents.
Answer: 300 cents and/or pennies
Step-by-step explanation:
Prove that equation ax^2+2hxy+by^2 always represent a pair of straight lines passing through the origin
Find the missing
information.
Arc length-1.5 ft
Radius-?
Central angle-pie/4 rad
Round to the nearest thousandth.
Answer:
1.91 ft
Step-by-step explanation:
Formula
l = rαwhere :
l = arc lengthr = radiusα = central angleSolving for r
l = rαr = l/αr = 1.5/(π/4)r = 6/πr = 1.90985932 ftr = 1.91 ft (nearest thousandth)What do we do to both sides of this equation to solve?
x/3 =5
Question 4 options:
Add 3 to both sides
Subtract 3 from both sides
Multiply both sides by 3
Divide both sides by 3
Answer:
Multiply both sides by 3
Step-by-step explanation:
x/3 = 5
x/3 × 3 = 5×3
x = 15
Answer:
multipy both sides by 3
Step-by-step explanation:
Is the following shape a square?, How do you know?
Answer:
C. No, because the sides aren't congruent
Step-by-step explanation:
Find the length of the segment indicated. Round your answer to the nearest tenth if necessary.
See picture for full problem. Please and thank you so very much!
Answer:
Step-by-step explanation:
List three solutions for the inequality x≥5 and give one example of a number that is not a solutions.
Answer:
Many simple inequalities can be solved by adding, subtracting, multiplying or dividing both sides until you are left with the variable on its own. But these things will change direction of the inequality: Multiplying or dividing both sides by a negative number. Swapping left and right hand.JUST FOLLOW THE TEXT TO GET THE ANSWER OF THE INEQUALITY ×>5
help pls with these two about surface area
Answer:
6) 152.6
7) 348.4
Step-by-step explanation:
For question number 6, calculate the surface area of the two triangles first. And then, calculate each of the surface area for the rectangles. Finally, total up the area of the two triangles and the rectangles.
[tex](6.6 \times 9) + (4 \times 9) + (5.2 \times 9) \times (\frac{1}{2} \times 5.2 \times 4) = 152.6[/tex]
For question number 7, given that the area of a triangle is 28.4. Hence calculate the area of the three rectangles. Lastly, total up the area of two triangles and three rectangles.
[tex]28.4 + 28.4 + 3(12 \times 8.1) = 348.4[/tex]
Hope this helps =)
The graph below shows the cost, in
dollars, per notebook at the school store.
Which equation represents the total cost, T, per n notebooks?
Answer:
t = 2.4n
Step-by-step explanation:
y = mx + c
t = mn + c
c = y-intercept (where the graph line crosses the cost line)
c = 0
mx/mn= gradient ( rise/run, up/across)
mn= 12/5 ( you could have picked any point in the graph )
mn= 2.4
the m is unnecessary now so we discard it
t = 2.4n + 0
Find the volume of the rectangular prism
Answer:
336
Step-by-step explanation:
V=whl=8·7·6=336
f(x)=x^2. What is g(x)?
A. g(x)=-4x^2
B. g(x)=-x^2-4
C. g(x)=x^2+4
D. g(x)=x^2-4
Answer:
g(x)=(-x²-4)
Step-by-step explanation:
[tex] - {x}^{2} - 4 \: is \: th \: requied \: equation[/tex]
In the figure shown below, cos 0 =
[tex]\cos \theta = \dfrac{\text{Base}}{\text{Hypotenuse}}\\ \\\\~~~~~~~=\dfrac{3}{\sqrt{3^2 +2^2}}~~~~~~~;[\text{Pythagorean theorem.}]\\\\\\~~~~~~~=\dfrac{3}{\sqrt{9+4}}\\\\\\~~~~~~~=\dfrac{3}{\sqrt{13}}[/tex]
Hello, I am a little confused on how to do this problem. If anyone can help and explain also that will be awesome.
Answer:
4(5x-2)= 6(x+8)
20x-8=6x+48
20x-6x=48+8
14x=56
[tex]x = \frac{56}{14} [/tex]
x=4
Step-by-step explanation:
hope this helps you!!
XXITSCHOCOLOVERXX
Answer:
x = 4
Step-by-step explanation:
[tex]\frac{5x-2}{6}=\frac{x+8}{4} < == cross\ multiply\\\\4(5x-2)=6(x+8) < ==distribute\\\\4(5x)+4(-2)=6(x)+6(8)\\\\20x-8=6x+48 < ==subtract\ 6x\ from\ both\ sides\\-6x\ \ \ \ -6x\\\\14x-8=48 < == add\ 8\ to\both\ sides\\\ \ \ +8 \ \ \ \ \ \ \ +8\\\\14x=56 < ==divide\ both\ sides\ by\ 14\\/14 \ \ \ /14\\\\x=4 < ==final\ answer[/tex]
Check your answer:
[tex]\frac{5x-2}{6}=\frac{x+8}{4}\\\\\frac{5(4)-2}{6}=\frac{4+8}{4}\\\\\frac{20-2}{6}=\frac{12}{4}\\\\\frac{18}{6}=\frac{12}{4}\\\\3=3[/tex]
This statement is correct
Hope this helps!
2.) Mila completed a half marathon race over the weekend. The full race was
13.1 miles and she jogged the first 4/5 of the race, then walked the remaining
distance.
How many miles did she jog?
Answer:
10.48 miles.
Step-by-step explanation:
That is 4/5 * 13.1
= 10.48 miles.
what is 13 x 350?
My calculator does not work
what is 8(4 - x) = 7x + 2
Answer: x = 2
Step-by-step explanation:
8(4 - x) = 7x + 2= 8(-x + 4) = 7x + 2= -8x + 32 = 7x + 2= -8x + 32 - 32 = 7x + 2 - 32= -8x = 7x + 2 - 32 = -8x = 7x = 30= -8x - 7x = 7x + 30 - 7x= -15x = 7x - 30 - 7x= -15x = 30 -15x/-15 = -30/-15 = x = -30/-15= x = 2And thats how you get the answer!
The measure of an angle is 88 degrees. FInd the measure of its complement and the measure of its supplement.
Answer:
Step-by-step explanation:
Complementary angles add to 90 degrees, so the measure of its complement is 90-88=2 degrees.
Supplementary angles add to 180 degrees, so the measure of its supplement is 180-88=92 degrees.
Ana y Maria vieron 2 hombres robar una joyería y también vieron como alcanzaron a salir. cuando fueron interrogadas por la policía, las jóvenes dieron información sobre la placa del auto que vieron alejarse: constaba de dos letras seguidas de cuatro dígitos. María aseguraba que la segunda letra era una O o una Q y que el último dígito era un 3 a un 8. Y Ana dijo que la primera letra era una C o una G y que el primer dígito de la definitivamente un 7. ¿Cuántas placas diferentes tendrá que verificar la policía para dar a conocer el auto que vieron Ana y María?
have a government
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Step-by-step explanation:
yan napo lahat answer
What is the domain of the function y = √√x+6-7?
x>_-7
x>_-6
x>_6
x>_7
the domain is
[tex]x \geqslant - 6[/tex]
Select Statistical or Not Statistical to classify each question.
1. How many feet are in 4 yards?
2. How many siblings do you have?
3. How many weeks are in a year?
Answer:
1. Not statistical
2. Statistical
3. Not statistical
Answer:
lol cant belive he could lie like that- anyways here is half the test since you can only post 5 pictures
Step-by-step explanation:
The number of students in sixth grade is 1.03 times the number of students in seventh grade. What percent is equivalent to 1.03?
2/3a-1/6=1/3 what is the solution
Here is your Answer:
3/4
Which to integers is Sqrt 58
between?
A. 7 and 8
B. -8 and -7
C.-6 and -5
D. 5 and 6
Option A
Solution:First, let's find the square root of 58.The square root of 58 is equivalent to:√58≈7,62 (approximately equal to)Now, which two integers is 7.62 between?Is it between 7 and 8? Yes.Is it between -8 and -7? No. 7.62 is positive.Is it between -6 and -5? No.Is it between 5 and 6? No.Therefore, √58 is between 7 and 8.Hope it helps.
Do comment if you have any query.