The triangle shown below has an area of 20 units.
Find the missing side.
8.
2
2
units
Is the number -14 irrational ?
Answer:
yes
Step-by-step explanation:
it's irrational cuz it's negative
Find cos(a) Reduce the ratio if necessary
Answer:
3/5 Choice 4.
Step-by-step explanation:
Remember SOH, CAH, TOA.
Sine=opposite/hypotenuse
Cosine=Adjacent/hypotenuse
Tangent=Opposite/adjacent.
Since we are looking for Cosine, we would need to locate the adjacent and hypotenuse of angle a.
The hypotenuse is the easiest to find because that will simply be the longest side of the triangle(50)
The adjacent would be 30 because 40 is the opposite(right across from theta).
So, A=30
H=50
Simply that to get Cos(A)=[tex]\frac{3}{5}[/tex].
please show work 7r + 21 = 49r
Answer:
1/2 = r
Step-by-step explanation:
7r + 21 = 49r
Subtract 7r from each side
7r-7r + 21 = 49r-7r
21 = 42r
Divide each side by 2
21/42 = 42r/42
1/2 = r
Answer:
r = 0.5
Step-by-step explanation:
First you need to isolate the r variable.
7r + 21 = 49r
-7r -7r
21 = 42r
Then Divide both sides by 42
0.5 = r
Now check your answer by inserting it back into the original equation.
7(0.5) + 21 = 49(0.5)
3.5 + 21 = 24.5
24.5 = 24.5
The equation is true so r = 0.5
Part B If Ivy conducted her survey of 25
students on a volunteer basis, are the
results representative of the school?
Why or why not?
Answer:
Step-by-step explanation:
No, the results are not necessarily representative of the school as a whole.
What is the random survey?A random survey is a research technique that is used to gather information from a sample of people or things in a population. The results of a random survey are more likely to be representative of the population as a whole since every member of the population has an equal chance of being chosen to take part in the research.
Given:
Ivy randomly surveys students in her school to learn more about mobile phone password use.
Of 25 respondents, 14 use a password.
If the survey was conducted on a volunteer basis, it is possible that the respondents who chose to participate may have different characteristics or behaviors than those who did not participate.
This could lead to a biased sample that does not accurately represent the entire school population.
Additionally, even if the sample is representative of the school population, a sample size of 25 is relatively small, which can increase the margin of error and make it more difficult to draw accurate conclusions.
Therefore, it is important to consider the limitations of the survey method and sample size when interpreting the results.
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The complete question:
Ivy randomly surveys students in her school to learn more about mobile phone password use.
Of 25 respondents, 14 use a password.
If Ivy conducted her survey of 25 students on a volunteer basis, are the
results representative of the school?
Can someone please help and answer this problem
Answer:
Use Desmos Graphing Calculator if you have more problems like this
How would this triangle be classified ..
Answer:
This given triangle is an equilateral triangle.
For a 48 foot fence there is a post every 6 foot. Traci said that she will need 8 posts total. Is
she correct? Explain in words.
Answer:she is right
Step-by-step explanation:
If you have to make a 48 foot long fence and each post is 6 feet then you would need 8. 6 times 8 =48
Answer:
She will need 9 posts. 1 in each end and 7 in the middle = 2+7=9
Step-by-step explanation:
Find the value of this expression if x = 7 and
y = 1
xy^2/-8
Answer:
[tex] \frac{x {y}^{2} }{ - 8} \\ x = 7 \\ y = 1 \\ then \\ \frac{7 \times {1}^{2} }{ - 8} = \frac{7}{ - 8} = \frac{ - 7}{8} \\ thank \: you[/tex]
Find the lest number which is exactly divisible by 36 & 90 Maths
Answer:
180Step-by-step explanation:
You need to find the HCF of 36 and 90.
Prime factors of each:
36 = 2*2*3*390 = 2*3*3*5HCF includes all prime factors of both numbers:
HCF(36, 90) = 2*2*3*3*5 = 180To find the least number,
Which is exactly divisible by 36 and 90. We have to find the HCF of 36 and 90.
→ 36 = 2 × 2 × 3 × 3
→ 90 = 2 × 3 × 3 × 5
Then the required HCF will be,
→ 2 × 2 × 3 × 3 × 5
→ 180 (HCF)
Thus, 180 is the least number which is exactly divisible by 36 and 90.
Use the map below. Find the distance between the cities Everett and Fairfield to the nearest tenth
thousands
thousands
hunarcos
5. Lee and Gary visited South Korea. They exchanged their dollars for South Korean bills,
Lee received 15 ten thousand South Korean bills. Gary received 150 thousand bills. Use
disks or numbers on a place value chart to compare Lee's and Gary's money,
10000
Answer:
Lee and Gary received the same amount of money (150,000)
Step-by-step explanation:
HELP MEEEEE PLEASEEEEEE!!!
Please solve correctly
It would equal 5/12
Step-by-step explanation:
Simple maths..
there are 45 students in a speech contest. Yesterday, 2/3 of them have their speeches. Today, 3/5 of the remaining students give their speeches. How many students still haven't given their speeches?
Answer:6 students remaining
Step-by-step explanation:Multiply 2/3 *45 which equals 30. If 30 students gave their speech on the first day there are 15 students remaining. Then multiply 3/5 * 15 which equals 9. If 9 of the 15 remaining students gave their speech than 15-9= 6 students remaining.
Plz help, I give Brainliest :-)
Answer:
8.754592 km
Step-by-step explanation:
5.44 × 1.6093 = 8.754592
How do u solve x+8-x=2
1) soln,
or,x+8-x=2
or,x-x=2-8
•°•-6 Ans#
its asking to calculate the mean and median of jonhathan grades and tristian grades?
Study the pattern of numbers given below and write the rule that describes the pattern 1,3,9,27,81
Gabriella goes for a power walk every three days, and Mona walks every fivedays. They both walked on Monday this week.a.After how many days will they both walk again on the same day?[3 pts]b.What day of the week will it be when they walk again on the same day?
Power Walking has been at the top of a natural range to walk with such a speed. A walk defines as a walking journey, and the further discussion can be defined as follows:
Given:
Power walking by the Gabriella by every 3 days
Walking by the Mona by every 5 days
Both walk on Monday then They both walked together,
after taking LCM of 5 and 3 that is = 15 days
For question a:
When both walk again after the same day is = 15 days
For question b:
"Tuesday" is the weekday that will it be when they walk again on the same day.
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What inequality does this number line show?
PLSSS HELP I WILL MARK U BRAINLEST!!!
Answer:
Equation: 11-2x=5. -2x=-6.
x=3
Coom
ements
The formula for the volume of a cylinder is V = xrh. The cylinder to the right has an exact volume of 720x cubic
meters. Find its height.
.6 m
The height of the cylinder is
(Simplify your answer.)
Answer:
You have the formula wrong.
The volume of a cylinder = PI * radius^2 * height
To find the height, the formula is:
height = volume / (PI*radius^2)
I'm assuming the radius = .6 meters so
height = 720 / (3.14159265 * .6^2)
height = 720 / 1.130973354
height = 636.61977 meters
Tp check your answer use this calculator: https://www.1728.org/diam.htm
Step-by-step explanation:
Is 5 5/6 + 1 3/4=5 1/12 reasonable
Answer:
No, it is unreasonable.
Step-by-step explanation:
5/5/6+1/3/4=35/6+7/4
=70/12+21/12
=91/12
=7 7/12
Find the sum of two consecutive numbers if the smaller one is 43
Answer:
87
Step-by-step explanation:
Smaller number = 43
Bigger number= 44
Sum = 43+44
Question Answer: 44+43 = 87
find slope that is perpendicular to the line 4−2=12 ?
Answer:
m = -1/2
Step-by-step explanation:
4 − 2 = 12
= −2 = 12 − 4
= = (12 − 4) ÷ (−2)
= = 2−6
So, the slope is 2.
Now, keep this rule in mind: the product of a slope of two perpendicular lines will be -1.
Thus, the slope of the line that is perpendicular to this line is -1/2
Solve
6
x
+
7
k
=
p
+
2
for x
Answer:
[tex]6x + 7k = p + 2 \: for \: x \\ 6x = p + 2 - 7k \\ 6x = 2p - 7k \\ \frac{6x}{6} = \frac{2p}{6} - \frac{7k}{6} \\ x = 3p - 1 \frac{1}{6} k[/tex]
What are the missing factors in the factor tree for 45?
45
5
A
B
С
Answer:
c
Step-by-step explanation:
the missing factors in the factor tree
One of the legs of a right triangle measures 1 cm and the other leg measures 17 cm.
Find the measure of the hypotenuse. If necessary, round to the nearest tenth.
Answer:
using phythagoras formula of right angles we can calculate the hypotenuse
1^2=x^2+17^2
x^2=17^2-1^2(transpose)
×^2=288 (introduce a square root)
x=15.01(round of to the nearest tenth)
Step-by-step explanation:
x=10
The measure of the hypotenuse is 17.029
What is Pythagoras Theorem?If ABC is a triangle with AC as the hypotenuse and angle B with 90 degrees then we have Pythagoras theorem:
|AC|^2 = |AB|^2 + |BC|^2
where |AB| = length of line segment AB. (AB and BC are rest of the two sides of that triangle ABC, AC being the hypotenuse).
Given;
The legs of a right triangle measures 1 cm
The other leg measures 17 cm
Now,
|AC|^2 = |AB|^2 + |BC|^2
|AC|^2 = |1|^2 + |17|^2
|AC|^2 = 1 + 289
AC=17.029
Therefore, by pythagoras theorem answer will be 17.029.
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f(x) = -x^2+3
find f(-2)
f(x) = -x² + 3
f(-2) = -(-2)² + 3 = -4 + 3 = -1
Answer → f(-2) = -1
