In the right triangle, if a = 3 and b = 6, what is the value of c?
a 3 times the square root of 5
b 9
c 9 times the square root of 5
d 45
Answer:
A
Step-by-step explanation:
Using the pythagorean theorem, [tex]a^{2} +b^{2} =c^{2}[/tex]
we plug the numbers in; [tex]3^{2} + 6^{2} =c^{2}[/tex]
9+36=c^2
45=c^2
sqr root of 45 is [tex]\sqrt{45}[/tex]
next find the positive perfect sqr root of 45 which will be 9.
9 goes into 45 5 times so it will be [tex]\sqrt{9x5}[/tex]
Sqr root of 9 is 3 so it will be [tex]3 \sqrt{5}[/tex]
plzzzzzzzzzzzzzzzzzzzzz help
Answer:
i think its 3/8 because if 5/8 are male the rest are female so you de 8/8 - 5/8 and you will get 3/8 but i dunno why it says about the aquariaum when the question is about how many female staff therer are
simplify the 3 problems below
(-2x + 4) + 2(2x + 1)
2(3x + 5) − 4(x − 1)
2(x − 7) + (8x + 20)
Answer:
sure
Step-by-step explanation:
(-2+4)+2(2x+1)
2x+1 answer for first one
second one is 2x +14
third is 10x+6
A new cream was developed to reduce the irritation caused by poison ivy. To test the effectiveness, researchers placed an ad online asking volunteers to participate in the study, and 100 subjects replied. They are informed that one group will receive a new cream and the other group will receive a cream with no active ingredient. The researchers believe that sun exposure may affect the cream’s effectiveness. The subjects are then asked about their outdoor activity, and 42 of the subjects state they spend more than 50% of their day outside. The 42 subjects are randomly assigned to the two treatments. The remaining 58 subjects are also randomly assigned to the two treatments. All subjects are exposed to poison ivy and given their cream. They are asked to return in three days and report their level of irritation.
Is this a randomized block design?
A.) Yes, the subjects could be randomly assigned to two different treatments.
B.) Yes, the participants are grouped by sun exposure, and then both treatments are randomly assigned within each group.
C.) No, the groups have an equal number of subjects.
D.) No, the subjects were not paired by age to determine if it affected the cream’s effectiveness.
Answer:
B: Yes, the participants are grouped by sun exposure, and then both treatments are randomly assigned within each group.
Step-by-step explanation:
Randomized block design is one in which the experimental units are categorized into groups which we call blocks. Thereafter, treatments will be randomly allocated to the experimental units inside each of the blocks.
Now, from the question, we can see that they were grouped in Blocks according to their outdoor activity which is degree of exposure to the sun. Thereafter the individual groups are randomly assigned treatments.
Thus, Option B is correct.
Answer:
b
Step-by-step explanation:
Building A is 883 feet tall and contains 70 stories. Building B contains 104 stories. If the two buildings have the same number of feet per floor , approximate the height of building B
Answer:
1311.88
Step-by-step explanation:
Feet:stories
883:70
x:104
To solve this we need to multiply 883 by 1.48 because this is what we multiplied 70 to get to 104
x=1311.88=1312
Mango and her friends are running an 8 mile relay. Each friend will run 1/3 mile. How many friend will run with Mango?
Answer:
24
Step-by-step explanation:
Danny charges $36 for 3 hours of swimming lessons, Martin charges $90 for 5 hours of swimming lessons. Who offers a better deal?
Answer:
Step-by-step explanation:
36 divided by 3= 12
90 divided by 5= 18
Therefore Danny's lessons are a better deal.
8y – 3(y – 2) >2y + 4(2y + 4)
Answer:
y<-2
Step-by-step explanation:
8y-3y+6>2y+8y+16
-3y-2y>16-6
-5y>10
y<-2
Answer:
y > -2
Step-by-step explanation:
Please look at the attachment:
Marcus is sharing a bag of chips. He gives 3/5 of his chips to Ryan and 1/10 of chips to Kyle. How much of the bag has he shared?
Answer:
Marcus is sharing a He gives 3/5 o
Step-by-step explanation:
Consider the following sequence:
7, 11, 15, 19, 23, . . .
The common difference is ______
What is the Explicit equation for the sequence?
t(n) = ____n + ______
What is the 20th term?
Answer:
Common difference= 4, Equation; t(n)=4n+3, 20th= 83
Step-by-step explanation:
d=11-7=4
Equation
Recall, t(n)=a_1+(n-1)d
Replacing a_1 =7 and d=4
t(n)=7+(n-1)4
t(n)=7+4n-4
t(n)=4n+3
20th item
t(20)=4(20)+3=83
I hope that is helpful
Answer:
Step-by-step explanation:
This is an arithmetic progression.
It starts at 7 and keeps on adding 4.
The common difference is 4
The explicit equation is
t_n = a + (n - 1)*d
a = 7
d = 4
t_n = 7 + (n - 1)*4
t_n = 7 + 4n - 4
t_n = 4n + 3
t_20
t_20 = 4*20 + 3
t_20 = 83
A salesperson earns a commission of $504 for selling 2,800 in merchandise. Find the commission rate. Write your answer as a percentage.
Answer:
18%
Step-by-step explanation:
[tex]\frac{504}{2800}[/tex] = [tex]\frac{x}{100}[/tex] ----> cross multiply
504(100) = 2800x
50400 = 2800x
[tex]\frac{50400}{2800}[/tex] = [tex]\frac{2800x}{2800}[/tex]
18 = x
Commission Rate: 18%
1. A field in the form of a parallelogram has one
diagonal of 42 m long and the perpendicular
distance of this diagonal from either of the
outlying vertices is 10 m as shown in the figure.
Find the area of the field.
Answer:
420m²
Step-by-step explanation:
Given that:
Length of diagonal = 42m
Lenght of outlying vertice = 10 m
Area of paralellogram = 2 " (area of triangle)
Area of triangle = 1/2 * base * height
Hence,
Area of parallelogram :
Area = 2(0.5 * 42 * 10)
Area = 2 (210)
Area = 420m²
Caleb wants to buy a package of Skittles. Which is the better value?
A. 8 oz. for $1.60
B. 10 oz. for $1.80
C. 12 oz. for $2.04
D. 15 oz. for $3.50
Answer:
I think 8 oz. of skittles is better cause it's the same as 10 oz but 8 oz is cheaper
12. You downloaded a new movie for 19.99 and have to pay a
sales tax of 6%. How much in all will you pay for the movie?
The price of the movie itself is $19.99.
19.99 x 6% = 1.1994
19.99 + 1.1994 = 21.1894
Answer: $21.19
Sarah mixes ⅓ cup of sugar with ½ cup of cream cheese to make a topping for cupcakes. Sarah uses 3/12 cup of the mixture to top each cupcake. How many cupcakes can Sarah top?
Answer:
thanks for the points
Step-by-step explanation:
please help me on this
please help. i’ll give brainliest to the correct answer
which number line models the sum of 8 + (-12)
Write an equation of the line that passes through the points (0,4) and (2,10).
Answer:
y = 3x+4
Step-by-step explanation:
Use the coordinates of the points to find the slope of the line passing through them.
slope = Δy/Δx = (10-4)/(2-0) = 6/2 = 3
Point-slope equation for line of slope 3 that passes through (0,4):
y-4 = 3(x-0)
Slope-intercept form of the equation:
y = 3x+4
Write the following statement in if-then form
Two opposite rays form a straight line.
Which of the following is the hypothesis?
if two rays are opposite
if a straight line is formed
Othen rays are opposite
can I get some help with changing the decimal 1.5 to a fraction please
Answer:
I do believe that 1.5 as a fraction is 3/2 or 1 and 1/2
Step-by-step explanation:
Hope this helps you:)
Answer:
1 ½ or 3/2
Step-by-step explanation:
Decimals can be written in fraction form. To convert a decimal to a fraction, place the decimal number over its place value. For example, in 0.6, the six is in the tenths place, so we place 6 over 10 to create the equivalent fraction, 6/10. If needed, simplify the fraction. - Khan Academy
Hope this helps :D
Using the given diagram, solve for x.
x=
Step-by-step explanation:
since the whole biggest triangle is a right triangle so ,
[tex] {x}^{2} = {20}^{2} + {18}^{2} \\ {x}^{2} = 400 + 324 \\ {x}^{2} = 724 \\ x = \sqrt{724} = 26.907 = 26.91[/tex]
7321694 is divisible by???????? PLEASE HELP
Answer:
2 and 3660847 are the only prime factors. Therefore, the number 7321694 is divisible by itself, by 2, by 366-0847 (which is a prime number) , or by the unity.
Step-by-step explanation:
2 and 3660847 are the only prime factors of this number. Therefore, the number 7321694 is divisible by itself, by 2, by 366-0847 (which is a prime number) , or by the unity.
2) Key components of financial planning include all of the following except:
A) Write out a detailed plan for accomplishing your goals
B) Replace money myths with money truths
C) Allow your financial planner to make all of your major money decisions
D) Regularly monitor and reassess your financial plan
Answer:
b
Step-by-step explanation:
i took the test pls mark me the brainliast
Prove: The difference of the cubes of two
successive integers is odd.
(n + 1)3-n3 = [ ? ]n2 + [ ]n + 1
= [ ](n + 1) + 1
= 6m + 1 (since n or n+1 is even)
= odd
(n + 1)³ - n³ = (n³ + 3n² + 3n + 1) - n³
… = 3n² + 3n + 1
… = 3n (n + 1) + 1
… = 6m + 1
where m is another integer. We can say this because, as the second-to-last step says, either n or n + 1 is even, which makes their product also even, so we can write it as a multiple of 2:
n (n + 1) = 2m
Then 6m is even, and adding 1 to it makes it odd.
The volume of a 9 inch cube is?
A. 729 cu in
B. 818 sq in
C. 243 cu yd
D. 1243 cu in
Help me solve showing work
Answer:
3x + 8.75 Or 3x + ³⁵⁄₄Explanation:
I'm going to convert all the fractions into decimals⁻¹⁄₂x + 9.5 + x - ¾ + 2.5x
= -0.5x + 9.5 + x - 0.75 + 2.5xGroup like terms-0.5x + x + 2.5x + 9.5 - 0.75
Add similar elements: -0.5x + x + 2.5x = 3x= 3x + 9.5 - 0.75
Add / subtract: 9.5 - 0.75 = 8.753x + 8.75 Or 3x +³⁵⁄₄- PNW
Fayyaz bought a mobile phone for £180
He sold it at a profit of 15%
How much money did Fayyaz sell the mobile phone for?
Answer:
207
Step-by-step explanation:
180+0.15*180=207
Step-by-step explanation:
profit amount =15×£180/100
=£27
Fayyaz sell the mobile phone for=180+27=207
Which graph represents the solution set of the system of inequalities? {y≥13x−3y<−3x−3
Answer:
see below
Step-by-step explanation:
in any circle, the ratio of the _ to the radius is 2.
a. diameter
b. radius
c. circumference
d. pi
PLEASE HURRY! 15 points
Answer:
The answer should be C
Step-by-step explanation:
Write a system of equations to represent the scenario.
2) Clark and Bruce went to Taco Hut for lunch. Clark bought 4 burritos and 5 tacos, which cost him $6.71. Bru
bought 5 burritos and 3 tacos, which cost him $7.12.
Answer:
Step-by-step explanation:I need the same answer lol
Answer:
Step-by-step explanation:
