Find the value of in the triangle shown below.
2.5
2
6.5
I have attached the complete question with the triangle.
Answer:
x = 6
Step-by-step explanation:
From the image attached we are told to find x in the triangle.
The triangle is a right angle triangle and so we can use pythagoras theorem to find x.
x² = 6.5² - 2.5²
x² = 42.25 - 6.25
x = √36
x = 6
Determine whether the conclusion is valid. Explain.
You want to determine the number of students in your school who have visited a science museum. You survey 50 students at random. Twenty have visited a science museum, and thirty have not. So, you conclude that 40% of the students in your school have visited a science museum.
A. yes; The sample is representative of the population, selected at random, and large enough to provide accurate data. So, the sample is unbiased and the conclusion is valid.
B. yes; The sample is representative of a specific group, selected based on age, and small enough to provide accurate data. So, the sample is biased and the conclusion is valid.
C. no; The sample is not representative of the population because students who are older have had more opportunities to visit a science museum. So, the sample is biased and the conclusion is not valid.
D. no; The sample is representative of the population, selected at random, and too large. So, the sample is unbiased and the conclusion is not valid
Answer:
e
Step-by-step explanation:
e
Which graph best represents y = -x2 + 6x - 1
Answer: Right below!
Answer:
i worked so hard on this graph please may i have brainiest
Step-by-step explanation:
25 points, need ASAP. Graph the line that passes through the two points then find the slope of the line.
Answer:
Slope is 2/3
Just plot the two points then draw a line through them.
help me answer i give brainiest Solve for x.
5=2x−3
Enter your answer in the box.
Answer:
5 - 3 = 2
2x =2
x = 2x ÷ 2 = 1
Answer is 1
Answer:
5=2x-3
collect like terms
if -3 crosses the equal to sign it will change to +3
5+3=2x
8=2x
divide both sides by 2
X=4
The radius of a regular hexagon is 8 cm.
Find the apothem, perimeter and area
of the regular hexagon.
the measure of the side = of the measure of radius because the regular hexagon have 6 sides = at each others
meaning the measure the perimeter is = 6 times the radius
and the radius = 8cm
so perimeter = 6× 8 cm
perimeter = 48cm
since the apothem is the segment perpendicular to a side thought the center and those segment are not promotional we have the notation as
r square root of 3 divided by 2
r = radius = 8 cm
by apply the formula
8square root 3 divided by 2
so the area will be
since the perimeter is 48cm
and the apothem is 8 square root of 3 divided 2
so the area will be 48 times 8 square root of 3 divided by 2 = 384 square of 3 divided by 2 .
hope that helps.
Rico spins the spinner twice and determines the sums of the spins. Fill in the sample space to determine the possible outcomes. What is the probability that Rico will get a sum less than or equal to 8? A 13\frac{1}{3} 3 1 B 23\frac{2}{3} 3 2 C 89\frac{8}{9} 9 8 D 59\frac{5}{9} 9 5
Answer:
2/3
Step-by-step explanation:
Sample space for the sum of 2 spins :
Number on spinner = 2, 5, 4
____ 2 ___ 5 _____4
2___ 4 ___ 7 _____ 6
|
5___ 7 ___ 10 ____ 9
|
4___ 6 ___ 9 ____ 8
Hence,
(4, 7, 6, 7, 10, 9, 6, 9, 8)
Probability of getting a sum less than or equal to 8;
Probability = required outcome / Total possible outcomes
Required outcome =, sum ≤ 8 = 6
Total possible outcomes = 9
P(sum ≤ 8) = 6/9 = 2/3
this is due in 1 minute PLZZZ HELP ME QUICK I will mark brainliest PLZZZ answer my teacher is so mad at me plzz help me answer this
Answer:
i think itd be -2? thats my best guess
I know it's a lot, but i would appreciate if you answered it :)
here's a picture help lol
I need help with letter A
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: 14
Explanation:
6 x 2 = 12
1 x 2 = 2
12 + 2 = 14
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer:
14
Step-by-step explanation:
6*3-2(2*1)
=18-4=14
what is the equation for this line
Answer:
y=-1.5x+0.5 or y+1.5x-0.5=0
PLSS HELP WITH THIS IMMEDIATELY!!!! only answer if u know. i’ll be giving brainiest if u don’t leave a link.
The electric current is I, is amperes, in a circuit varies directly as the voltage V. When 12 volts are applied the current is 4 amperes. What is the current when 18 volts are applied
Answer: 6 A
Step-by-step explanation:
Given
Current varies directly with Voltage
i.e.
[tex]I\ \propto V\ or\\V\ \propto\ I\\V=IR[/tex]
when V=12 V, I=4 A i.e.
[tex]\Rightarrow 12=4R\\\Rightarrow R=3\ \Omega[/tex]
When V=18 V
[tex]\Rightarrow 18=I\times 3\\\Rightarrow I=6\ A[/tex]
Current is 6 Ampere
sec(x+20)°=csc(x+20)°
very much secsc
Step-by-step explanation:
yes i love the secc
Help me please please please
The slope is 0.6
The answer is taken by solving from the graph
ILL GIVE BRAINLIEST PLEASE HELP ASAP
Answer:
4.4
Step-by-step explanation:
(-7/10 + 0.15) ÷ (-0.125)
(-70/100 + 15/100) ÷ (-0.125)
-55/100/-0.125
-.55/-0.125
4.4
Can someone plz help me with this one problem plz!!!
Debra and Alexandria can finish a plowing job in two hours if they work together. Debra can do the job in 7 hours by herself. How long would it take Alexandria to finish the same job alone?
Answer:
2 hours 48 minutes
Step-by-step explanation:
Debra=1 plowing job / 7 hours
Debra+Alexandra=1 plowing job / 2 hours
1/2-1/7
=7/14-2/14
=5/14
=1/14/5 (Alexandra can do 1 unit of plowing job per 14/5 hours)
14/5 hour=2 hours 48 minutes (hope hits helps)
Alexandria to finish the same job alone in, 2 hours 48 minutes
What is mean by Subtraction?Subtraction in mathematics means that is taking something away from a group or number of objects. When you subtract, what is left in the group becomes less.
Given that;
Debra and Alexandria can finish a plowing job in two hours if they work together.
And, Debra can do the job in 7 hours by herself.
Hence, We get;
For Debra = 1 plowing job / 7 hours
Debra + Alexandra = 1 plowing job / 2 hours
Hence, Time to take Alexandria to finish the same job alone is,
= 1/2 - 1/7
= 7/14 - 2/14
= 5/14
= 1/14/5 (Alexandra can do 1 unit of plowing job per 14/5 hours)
= 2 hours 48 minutes
Thus, Alexandria to finish the same job alone in, 2 hours 48 minutes
Learn more about the subtraction visit:
https://brainly.com/question/17301989
#SPJ3
Work out the area of the triangle.
20m 29m 25m and 36m
Answer:
Area Of Triangle=1/2bh
Step-by-step explanation:
tell Us The Base And Height Of The Triangle Briefly
Fill in the blanks:
(i) If two angles are complementary, then the sum of their measures is _______.
(ii) If two angles are supplementary, then the sum of their measures is ______.
(iii) Two angles forming a linear pair are _______________.
(iv) If two adjacent angles are supplementary, they form a ___________.
(v) If two lines intersect at a point, then the vertically opposite angles are always
_____________.
(vi) If two lines intersect at a point, and if one pair of vertically opposite angles are
acute angles, then the other pair of vertically opposite angles are __________.
Answer:
i) 90
ii) 180
iii) supplementary
iv) linear pair
v) equal
vi) obtuse
A cylinder with radius 3 feet and height 5 feet is there. What is the volume of the cylinder? Round answer to the nearest hundredth.
Answer:
volume of cylinder
= πr²h
= π×3²×5
= π×9×5
=45π
= 141.37 cubic feet
Two sides of a triangle have lengths 7 and 15. Which inequality represents the possible lengths for the third side , x?
Answer:
8 < x <22
Step-by-step explanation:
In this question we know the two sides of the triangle to be 7 and 15, let's all the other side x
One one side of the inequality we have:
7+15>x
22 > x
On the other side we have
7 + x > 15
X > 15-7
X>8
When we rearrange these inequalities above we have
8<X<22
We saw from the calculations that 8 is less than X and X is less than 22.
Can someone please help? I'll give brainlist!
Step-by-step explanation:
Use TOA method (tan angle = opposite / adjacent)
Given Opposite = x
adjacent = 6,
[tex] \tan(37) = \frac{opposite}{adjace nt} \\ \tan(37) = \frac{x}{6} \\ x = 6 \tan(37) \\ = 4.5units(nearest \: tenth)[/tex]
Sally's age is 2 plus 3 times John's age. Together, Sally and John's age equals 30. How old is Sally?
Answer:
Sally is 23 years old.
Step-by-step explanation:
John's age is completely unknown, so it is known as x
Meanwhile, Sally's age can be represented as 3x+2
The sum of both ages is 30.
So, x+3x+2=30
Combine like terms.
4x+2=30
Subtract 2 from both sides.
4x=28
Divide both sides by 4.
x=7
John is 7 years old.
Sally's age: 3(7)+2=23
Sally is 23 years old.
Find the limit of the function by using direct substitution. limit as x approaches three of quantity x squared plus three x minus one.
17
0
-17
does not exist
Answer:
17
Step-by-step explanation:
Given the limit of a function expressed as;
[tex]\lim_{x \to 3} x^2 + 3x - 1[/tex]
Substitute x = 3 into the function to have;
[tex]= 3^2 + 3(3) - 1\\= 9 + 9 -1 \\= 18 - 1\\= 17[/tex]
Hence the limit of the function as x tends to 3 is 17
Please help me I will give brainliest
Answer:
Hm?
Step-by-step explanation:
Why should i
Helpppppp! I’ll give 40
Answer:
x = -2 y = -4
x = -1 y = -1
x = 0 y = 2
x = 1 y = 5
5x + (x + 6) + 3x whats the answer?
first to answer CORRECTLY gets brainliest
Answer:
9x + 6
Step-by-step explanation:
5x + ( x + 6 ) + 3x
= 5x + 3x + x + 6
= 9x + 6
Algebra Find the volume of the three-dimensional figure in terms of x.
Please if anyone is available could you solve this I’m a bit stuck. Thank you!
Answer:
Step-by-step explanation: