Answer:
x = 83
Step-by-step explanation:
The two angles form a right angle, which is 90 degrees
25+ x-18 = 90
Combine like terms
x +7 =90
Subtract x from each side
x+7-7=90-7
x = 83
Answer:
Hello! answer: x = 83
Step-by-step explanation:
This is a Complementary angle meaning it will add up to 90 degrees so...
83 - 18 = 65 65 + 25 = 90 therefore x = 83 Hope that helps!
Which statement tells how to graph the point (3, 2) on a coordinate plane?
Answer:
Step-by-step explanation:
plot 3 unit right from the origin and then 2 units up.
the diagram of g||h, with transversal f,
Which solution finds the value of x in the triangle below?
p+q/2; use p=1, and q=-1
Answer:
0
Step-by-step explanation:
Plug p and q in
1+-1/2
0/2
0
If this helps please mark as brainliest
Answer:
see below
Step-by-step explanation:
p+q/2
If
p + q/2
1 + -1/2
1/2
If (p+q)/2
(1-1)/2
0
If you know the length of the side of the square, how can you figure out the area?
Answer:
By multiplying
If the sides were 5 then you would do 5x5 to get the area
Hope this makes sense :)
f(x) = x^2. What is g(x)?
Answer:
Step-by-step explanation:
(1;3) ∈ g(x) ⇒ Only D is
Answer:
Step-by-step explanation:
please help me fill in the blanks asap !!! the first question is a yes or no question. thankyou
Answer:
No, because the longest side is too short to be the hypotenuse of a right triangle.
Step-by-step explanation:
To see if the sides form a right triangle
6² + 8² = 9²
36 + 64 = 81
100 ≠ 81
The the 3rd side is too short
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Find x.
Do not round your answer.
8 cm
4 cm
X
x =
= [ ? ] cm
Answer:
x =12
Step-by-step explanation:
(whole secant) x (external part) = (tangent)^2
(4+x) * 4 = 8^2
Distribute
16+4x = 64
Subtract 16 from each side
4x = 48
Divide each side by 4
4x/4 = 48/4
x = 12
Answer: 12
Step-by-step explanation: 8*8 = 4(4+x), which is equal to 64 = 16 + 4x, subtract 16 from both sides, 48 = 4x, divide both sides by 4 to isolate x, 12 = x
7) y is inversely proportional to the square root of (x + 1).
When x = 8, y = 2. Find y when x= 99.
At what position on the number line is the red dot located
Answer:
A
Step-by-step explanation:
The range of the data: 6,14,20,16,6,5,4,18,25,15, and 5 is
a. 4
b. 21
c. 25
d. 20
Answer:
21
Step-by-step explanation:
Range is the largest value minus the smallest value
25 is the largest value
4 is the smallest value
25-4 =21
Answer:
b. 21
Step-by-step explanation:
biggest number - smallest number
25 - 4 = 21
Square units are used to measure?
1 width
2 volume
3 area
4 length
sec 2x =
Check all that apply.
Answer:
C,D
Step-by-step explanation:
that is the answer to the question
Find the perimeter and the area of the figure. I have been trying to figure this one out for hours.
Answer:
56 meters
Step-by-step explanation:
when calculating the perimeter, you need to take into account every side of the figure.
i will start at the top and go clockwise showing you my calculations
5 + 5 + 11 + 7 + 16 + 7 + 5
= 56
?
—— x 8 = 7
8
*please help and explain how you got the answer :)*
Answer:
7
Step-by-step explanation:
7 divided by 8 multiplied by 8 would be 7
Find the slope of the line that contains
the points (3, 2) and (-3, 8).
Answer:
-1
Step-by-step explanation:
To find the slope given two points
m = ( y2-y1)/(x2-x1)
= ( 8 - 2)/( -3 -3)
= 6 / -6
= -1
a. step one
b.step two
c. step three
d. Keisha did not make a mistake.
Answer:
d. Keisha did not make a mistake
Step-by-step explanation:
3+(-4)-7
3+(-4)+(-7) adding negatives is the same as subtracting
3+(-11) -4 and -7 do make -11
-8 3 and -11 do make -8
So she did it correctly, which means d is the right answer.
:) ur welcome
Find the percent change. Round to the nearest tenth of a percent when necessary. Indicate if the percent
change is an increase or decrease.
From 50 to 94.
46.8% derease
46.8% increase
88% derease
88% increase
Answer: 88% increase
[tex]x^{2} -7x-18[/tex]
Answer:
(x - 9)(x + 2)
Step-by-step explanation:
x² - 7x - 18
x² + 2x - 9x - 18
x(x + 2) - 9(x + 2)
(x - 9)(x + 2)
The (blank) of the following set of data is 6.
13, 7, 9, 5, 2, 3, 5, 4, 10, 12
A. Mode
B. Mean
C. Median
D. Range
PLZ HELP
Answer: Median!
Step-by-step explanation: If it's easier you can just use this website so your math will be easier: https://www.calculatorsoup.com/calculators/statistics/mean-median-mode.php
Answer:
Firstly arrange the numbers in order then cancel from the beginning numbers to end numbers then middle one is the answer
Please Help me need help
Answer:
-1 * (x/y)
Step-by-step explanation:
-x/y = x /-y
Factor out the negative
-(x/y) = -(x/y)
This is equal to -1 * (x/y)
Which expression will simplify (3a + 6) (7a - 2)?
Answer:
63a + 6
Step-by-step explanation:
we have to first simplify this
(3a+6)(7a-2)
21a-6+42a+12
63a+6
Answer:
Step-by-step explanation:
Use FOIL method
(3a+ 6)(7a - 2) = 3a* 7a + (3a)*(-2) + 6*7a + 6*(-2)
= 21a² - 6a + 42a - 12 {Combine like terms}
= 21a² + 36a - 12
What is the circumference of the circle below? Use the formula C = 2tr.
5 m
A 5 m
B 10T m
Answer: B
Step-by-step explanation:
The formula for circumference of a circle is 2 pie radius (2πr)
1. radius=5
2 so 2π(5)
3 2x5=10
4. 10π
What is the area of the right triangle shown in the image.
Answer:
24 sq. in
Step-by-step explanation:
To find the area of a triangle, you multiply both sides by one another, then divide the product in half.
In this case it would go along the lines of:
6 x 8 = 48
48/2 = 24
And 24 is the desired answer.
Hi can someone help me
Answer:
D. The average time spent is 11 average.
Step-by-step explanation:
The mean is the average. The average time spent is 11 average.
What is the approximate volume of the cylinder? Use 3.14 for π.
top of the cylinder is 9 bottom is 4
A. 324 cm3
B. 452.16 cm3
C. 734.76 cm3
D. 1,017.36 cm3
c. 734.76 cm3 espero que te sirva :)
Is this right or wrong ?
Answer:
[tex](3x - 2)(4x + 6) = 12 {x}^{2} + 18x - 8x + - 12 \\ = 12 {x}^{2} + 10x - 12 [/tex]
Solve the following trigonometric equation over the interval of [0,2π). Show your work, thank you!
[tex] \large{2sin \theta tan \theta = - 3}[/tex]
Answer:
[tex] \rm \displaystyle \theta = \{ {150}^{ \circ} , {240}^{ \circ} \}[/tex]
Step-by-step explanation:
we would like to solve the following equation:
[tex] \displaystyle 2 \sin( \theta) \tan( \theta) = - 3[/tex]
to do so we need to put the equation in term of a function of a angle therefore rewrite tanθ:
[tex] \displaystyle 2 \sin( \theta) \cdot \frac{ \sin( \theta) }{ \cos( \theta) } = - 3[/tex]
simplify multiplication:
[tex] \displaystyle \frac{ 2\sin^{2} ( \theta) }{ \cos( \theta) } = - 3[/tex]
cross multiplication:
[tex] \displaystyle 2\sin^{2} ( \theta) = - 3 \cos( \theta) [/tex]
isolate -3cosθ to left hand side and change its sign:
[tex] \displaystyle 2\sin^{2} ( \theta) + 3 \cos( \theta) = 0[/tex]
well we can rewrite sin²θ by applying Pythagorean theorem and that yields:
[tex] \rm \displaystyle 2(1 - \cos^{2} ( \theta)) + 3 \cos( \theta) = 0[/tex]
distribute:
[tex] \rm \displaystyle 2 - 2\cos^{2} ( \theta) + 3 \cos( \theta) = 0[/tex]
now notice that our equation ended up with a pattern and that is Quadratic thus by letting cosθ be x to transform the equation:
[tex] \rm \displaystyle 2 - 2 {x}^{2} + 3 x = 0[/tex]
rearrange it to standard form:
[tex] \rm \displaystyle - 2 {x}^{2} + 3 x + 2 = 0[/tex]
divide both sides by -1:
[tex] \rm \displaystyle 2 {x}^{2} - 3 x - 2 = 0[/tex]
well we can factor the quadratic to do so rewrite -3x as -4x+x:
[tex] \rm \displaystyle 2 {x}^{2} - 4 x + x - 2 = 0[/tex]
factor out 2x:
[tex] \rm \displaystyle 2x ({x}^{} - 2)+ x - 2 = 0[/tex]
factor out 1:
[tex] \rm \displaystyle 2x ({x}^{} - 2)+ 1(x - 2 ) = 0[/tex]
group:
[tex] \rm \displaystyle (2x + 1)(x - 2 ) = 0[/tex]
by Zero Product property we obtain:
[tex] \rm \displaystyle \begin{cases} 2x + 1 = 0\\ x - 2 = 0 \end{cases}[/tex]
cancel 1 from the first equation and add 2 to the e equation:
[tex] \rm \displaystyle \begin{cases} 2x = - 1\\ x = 2\end{cases}[/tex]
substitute back:
[tex] \rm \displaystyle \begin{cases} 2 \cos( \theta) = - 1\\ \cos( \theta) = 2\end{cases}[/tex]
since cosθ is only defined for the interval [1,-1] the second equation is false for any value of θ but we can still continue the first equation
[tex] \rm \displaystyle \begin{cases} 2 \cos( \theta) = - 1\\ \cos( \theta) \neq 2\end{cases}[/tex]
divide both sides by 2:
[tex] \rm \displaystyle \cos( \theta) = \frac{ - 1} {2}[/tex]
by unit circle we acquire:
[tex] \begin{cases} \rm \displaystyle \theta = {150}^{ \circ} \\ \theta = {240}^{ \circ} \end{cases}[/tex]
add period of 2nπ:
[tex] \begin{cases} \rm \displaystyle \theta = {150}^{ \circ} + 2n\pi\\ \theta = {240}^{ \circ} + 2n\pi \end{cases}[/tex]
for the interval [0,2π) θ is only defined when n is 0 Thus:
[tex] \begin{cases} \rm \displaystyle \theta = {150}^{ \circ} + 2(0)\pi\\ \theta = {240}^{ \circ} + 2(0)\pi \end{cases}[/tex]
simplify:
[tex] \begin{cases} \rm \displaystyle \theta = {150}^{ \circ} \\ \theta = {240}^{ \circ} \end{cases}[/tex]
hence,
θ is equal to 150° and 240°
Arithmetic and Geometric Sequences
When an object is dropped from a tall building, it falls about 16 feet in the first second, 48 feet in the second second, and 80 feet in the third second, regardless of its weight.
How many feet would an object fall in the tenth second?
Answer:
the object will fall 5060 feet in 10 second.
Step-by-step explanation:
g= 9.8m/s^2 and 9.8×3.33=32.67 feet/s^2.
initial velocity (u)= 16 feet/second
time taken(t)=10 second
final velocity(v)= ?
now,
V= u+ GT
=16+32.67×10
=342.67feet/second
again
distance covered= VT+1/2gt^2
=342.67×10+1/2×32.67×100
=3426.7+1633.33
=5060 feet
a rectangle is 12 feet long and 5 feet wide. if the length of the rectangle is increased by 25% and the width is decreased by 20% what is the change in the area of the rectangle
Answer:
60% decrease in area
Step-by-step explanation:
12 x5 == 60 sq feet (original area)
9 x 4 == 36 sq feet (new area)
36/60 = 6/10 = 60%