Answer:
a) 33
b) 50
c) 66%
Step-by-step explanation:
a) 3+30
b) 20+50
c) 33/50 * 100% = 66%
Find the missing angles indicated by small letters in each of the diagram.
Answer:
a) X=75°
y= 105°
b) b= 120°
a=45°
d) r=75°
q=37°
p= 37°
e) y=100°
X= 143°
Step-by-step explanation:
soln no. a
here,
X+50+55=180(sum of all angle of triangle)
or, X= 180-105
or, X= 75°
again,
X+y = 180 (straight angle)
or, y= 180-75
or, y= 105°
soln no b
here,
b+60=180(straight angle)
or, b = 180 - 60
or, b = 120°
again,
a+60+75=180(sum of all angle of triangle)
or, a = 180- 135
or, a = 45°
soln no. d
here,
r=70°( alternate angle)
again,
73°+q+r=180( sum of all angle of triangle)
or,q=180-143
or,q=37°
again,
p=q=37(alternate angle)
soln no. e
y+80=180(straight angle)
or,y= 180-80
or, y = 100°
again,
63+80+<RMB=180(sum of all angles of triangle)
or, 143+<RMB=180
or, <RMB=180-143
or,<RMB= 37°
again,
X+ <RMB= 180(straight angle)
or,X= 180°-37°
or, X = 143°
A new car that is a gas- and electric-powered hybrid has recently hit the market. The distance traveled on 1 gallon of fuel is normally distributed with a mean of 65 miles and a standard deviation of 7 miles. Find the probability of the following events: a. The car travels more than 69 miles per gallon. Proba
Answer:
0.28386
Step-by-step explanation:
Given that :
Mean, μ = 65 miles
Standard deviation, σ = 7 miles
Probability that car travels more than 69 miles per gallon :
Recall,
Z = (x - μ) / σ ; x = 69
Z = (69 - 65) / 7 = 0.5714
The probability :
P(Z > z) = P(Z > 0.5714) = 1 - P(Z < 0.5714)
P(Z > 0.5714) = 1 - P(Z < 0.5714) = 1 - 0.71614 = 0.28386
P(Z > 0.5714) = 0.28386
What is the value of y?
A. 55°
B. 850
C. 10°
D. 110°
Tìm x
(x+1)^2=x+1
Help me!!Pls
This is for geometry, please help ASAP
Answer:
Option C,
y² = 18x, since the graph opens right
Answered by GAUTHMATH
What is the total surface area of the square pyramid below?
14 cm
10 cm
10 cm
O 100 cm
O 200 cm
O 280 cm?
O 380 cm?
a
Answer:
D
Step-by-step explanation:
380
cho tam giác ABC vuông tại A < góc B=a chứng minh: a) 1+[tex]tan^{2}[/tex]a=[tex]\frac{1}{sin^{2}a }[/tex]
làm giúp mình với
[tex]\\ \sf\longmapsto 1+tan^2A[/tex]
[tex]\boxed{\sf tanA=\dfrac{sinA}{cosA}}[/tex]
[tex]\\ \sf\longmapsto 1+\dfrac{sin^2A}{cos^2A}[/tex]
[tex]\\ \sf\longmapsto \dfrac{cos^2A+sin^2A}{cos^2A}[/tex]
[tex]\boxed{\sf cos^2A+sin^2A=1}[/tex]
[tex]\\ \sf\longmapsto \dfrac{1}{cos^2A}[/tex]
[tex]\\ \sf\longmapsto \dfrac{1}{1-sin^2A}[/tex]
[tex]\\ \sf\longmapsto \dfrac{1}{1}-\dfrac{1}{sin^2A}[/tex]
[tex]\\ \sf\longmapsto \dfrac{1}{sin^2A}[/tex]
Hence verified
1. The sum of x and 10 is -1. Find x.
Answer:
0 ,1cyvkdcbdfiiihh7v6ctc6e5a5ise5aasusti
ILL GIVE POINTS!!
Suppose a triangle has two sides of length 3 and 4 and that the angle
between these two sides is pi/3 What is the length of the third side of the
triangle?
A. sqrt13
B. 4sqrt3
C. sqrt3
D. 3
Answer:
no A
Step-by-step explanation:
sqrt13 is the ans
hope it helps
If p:q=3:4 and q:r=14:9, find p:r
Answer:
7/6
Step-by-step explanation:
p=3/4*q
q=14/9*r
so p=3/4*14/9r=7/6r
Have to finish these by the 23rd :(
Answer:
5/6
Step-by-step explanation:
x²- 3x + 7 / x + 4
when [x = 2]
Putting the value of x,
2² - 3(2) + 7 / 2 + 4
= 4 - 6 + 7 / 6
=5 / 6
Graph the relation shown in the table. Is the relation a function? Why or why not?
Answer:
what can i help u with
Step-by-step explanation:
No; the relation passes the vertical-line test. Yes; only one range value exists for each domain value
Yes; two domain values exist for range
yes; only one range value exists for each domain.
solve for x. Round to the nearesr tenth of a degree if necessary.
Answer:
im not sure but i got 30.1
Step-by-step explanation:
[tex] \cos(x) = \frac{45}{52} \\ x = 30.1[/tex]
Solve for both x and y in the parallelogram below.
Answer:
x is 14 and y is 13
Step-by-step explanation:
[tex]{ \sf{(4y - 5) = (3y + 8)}} \\ { \sf{y = 13}}[/tex]
[tex]{ \sf{(x + 12) = 2y}} \\ { \sf{x + 12 = 2(13)}} \\ { \sf{x + 12 = 26}} \\ { \sf{x = 14}}[/tex]
4y-5=3y+8( opposite sides of parallelogram are equal)
or, 4y-5-3y=8
or, 4y-3y=8+5
.•. y=13
now,
x+12=2y
x+12=2*13
x=26-12
.•. x=14
What are the solutions to the system of equations graphed below?
Answer:
The answer is B (4, 8) and (0, -8)
A spinner numbered 1 to 6 is spun ten times, giving the results : 2, 5, 3, 5, 1, 2, 3, 3, 4, 6. The experimental probability of getting a 2 is:
Answer:
1 / 5
Step-by-step explanation:
Given the outcome of number cube spin : 2, 5, 3, 5, 1, 2, 3, 3, 4, 6
The experimental probability of an event, A is given as :
P(A) = number of times A occurs / total number of trials
Therefore, the experimental probability of getting 2 ;
P(getting 2) = Number of times 2 occurs / total number of trials
P(getting 2) = 2 / 10 = 1/5
I think of a number I multiply it by 4 subtract by 6 and the divide by 5 if the answer is 10 what was the original number
Answer:
Step-by-step explanation:
(4x-6)/5 = 10
4x-6 = 50
4x = 56
x = 14
x+y=4
x-2y=-5
If the first equation is multiplied by 2 and then the equations are added, the result is
=3
3 = 13
o3х=3 3
Answer:
3x = 3
Step-by-step explanation:
x + y = 4 × 2
= 2x + 2y = 8
2x + 2y = 8 + x - 2y = -5
3x = 3
PLEASE HELP! ASAP
Sarah is five years old. When she asked her father about his age, he gave her this answer. "When you are my age, I will be 67." How old is her dad?
Her dad = 36
Sarah = 5
After 31 years sarah = 36
And her dad = 67
Answered by Gauthmath must click thanks and mark brainliest
If mBAC = 90°, and mZDAC = 68°,
then mBAD = [?]
Answer:
22 degrees
Step-by-step explanation:
BAC=90 and DAC=68
DAC+BAD=BAC=90
so BAD=BAC=DAC
so BAD=90-68
= BAD=22 degrees
Answer:
The answer according to my calculations would be 22 degrees
Step-by-step explanation:
Fill in the box 22
calculate the area of a sector with radius 13m and angle 93
Answer:
137.16
Step-by-step explanation:
we have a formular of the area of a sector:
S= pi*(its angle)/360*R^2
so apply to it
S= pi*(93/360)*13^2=137.16
Solve for x in the drawing above.
Answer:
x is 28°
Step-by-step explanation:
Alternate angles of parallel lines:
[tex]{ \sf{x = \frac{1}{2} \times 56 \degree }} \\ { \sf{x = 28 \degree}}[/tex]
Answer:
Hello,
28°
Step-by-step explanation:
Calculate the complementary angle of x =y
In the triangle on the right :
y+y+56°=180°
y=62°
So x=90°-62°=28°
Write the function for the graph.
Answer:
B)
Step-by-step explanation:
exponential function given by:
[tex] \displaystyle f(x )= a \cdot{b}^{x} [/tex]
where:
a is the y-interceptb can be any numbersince the function crosses y-axis at (0,4) point
[tex]a = 4[/tex]to find a we can consider (1,8) point it tells us when x is 1 then y is 8 thus:
[tex] \displaystyle 8= 4 \cdot{b}^{1} [/tex]
[tex] \displaystyle 8= 4 \cdot{b}^{} [/tex]
divide both sides by 4:
[tex] \displaystyle \boxed{b = 2}[/tex]
altogether substitute:
[tex] \displaystyle f(x)= 4 \cdot{2}^{x} [/tex]
hence our answer is B)
Wich graph is the result of the reflection f(x) =1/4(8)^x across the y axis and then across the x- axis
Answer:
I assume that the function is:
[tex]f(x) = \frac{1}{4}*8^x[/tex]
Now let's describe the general transformations that we need to use in this problem.
Reflection across the x-axis:
For a general function f(x), a reflection across the x-axis is written as:
g(x) = -f(x)
Reflection across the y-axis:
For a general function f(x), a reflection across the y-axis is written as:
g(x) = f(-x)
Then a reflection across the y-axis, and then a reflection across the x-axis is just:
g(x) = -(f(-x)) = -f(-x)
In this case, we have:
[tex]f(x) = \frac{1}{4}*8^x[/tex]
then:
[tex]g(x) = -f(-x) = -\frac{1}{4}*8^{-x}[/tex]
Now we can graph this, to get the graph you can see below:
If a^2+1/a^2=79 where (a>0), find the value of a^3 +1/a^3
Note the binomial expansion,
(a + 1/a)³ = a ³ + 3a + 3/a + 1/a ³
so
a ³ + 1/a ³ = (a + 1/a)³ - 3 (a + 1/a)
Similarly,
(a + 1/a)² = a ² + 2 + 1/a ²
We're given a ² + 1/a ² = 79, so
(a + 1/a)² - 2 = 79
(a + 1/a)² = 81
a + 1/a = ±9
but a > 0, so we ignore the negative solution.
Then
a ³ + 1/a ³ = 9³ - 3×9 = 702
The slope of a line is -4 and Y negative intercept is -3 what is the equation of the line written in slope intercept form
Answer:
y = mx + c
m = -4
at y intercept x = 0
(x,y) =(0,-3)
-3 = -4(0) + c
c = -3
therefore the answer is y = -4x + c
Can someone help me with this answer?
[tex](4.2 \times {10}^{5}) \times (3.2 \times {10}^{6}) = 15.54 \times {10}^{11} = 1.554 \times {10}^{12} [/tex]
I hope I helped you ^_^
PLEASE HELPPP
Which statement correctly compares the reading speed of Danika and Kevin?
A. Each hour, Kevin reads 10 fewer pages than Danika.
B. Each hour, Kevin reads 10 pages more than Danika.
C. Each hour, Kevin reads 5 fewer pages than Danika.
D. Each hour, Kevin reads 5 pages more than Danika.
Answer:
No.B is correct statement
What is the value of x in the equation 1/5x - 2/3y
=
30, when y = 15?
Answer:
x = 200
Step-by-step explanation:
Plug in 15 as y into the equation and solve for x:
1/5x - 2/3y = 30
1/5x - 2/3(15) = 30
1/5x - 10 = 30
1/5x = 40
x = 200
So, when y = 15, x = 200
The perimeter of a rectangular park is 300 feet. The length of the park is 10 feet longer than the width.
Find the length of the park.
What is the length of the park?
feet=?
Answer:
80 ft
Step-by-step explanation:
width = w
length = w+10
Perimeter of a rectangle
P = 2(l+w)
300 = 2(w+10+w)
300 = 2(2w+10)
Divide by 2
300/2 = 2/2(2w+10)
150 = 2w+10
Subtract 10
150-10 = 2w+10-10
140 = 2w
Divide by 2
140/2 = 2w/2
70 = w
l = w+10
l = 70+10
w = 80
