Answers
Answer:
28.75 degrees
Step-by-step explanation:
The missing angle in the triangle and 120 add up to 180 so the missing angle must be 60 degrees
all the angles of the triangle add up to 180 degrees so
x + 3x + 5 + 60 = 180
4x = 180 - 65
4x = 115
x = 28.75
Answer:
x = 28.75°
Step-by-step explanation:
First, you have to solve for the angle that is supplementary with 120°.
180° - 120° = 60°
The inside angles must add up to 180°, so the equation will be:
(3x+5)° + x° + 60° = 180° ––Now combine like terms (the x's)
(4x + 5)° + 60° = 180° ––Combine the like terms on the left (5 and 60)
4x° + 65° = 180° –– Get the x term all alone by subtracting 65 from both sides
4x° = 115° –– Divide both sides by 4 to get x by itself
x = 28.75°
Check by substituting:
[(3•28.75)+5]° + 28.75° + 60° = 180
(86.25 + 5)° + 28.75° + 60° = 180°
91.25° + 28.75° + 60° = 180°
120° + 60° = 180°
180° = 180°
This is correct.
Related Questions
Can someone create and solve a multiplication problem to show that the product of a whole number and a fraction will be equal to the whole number?
Answers
Answer:
12
Step-by-step explanation:
what is the quotient of 6,726 and 19
Answers
Answer:
354
Step-by-step explanation:
I'm smart............
math math math ill cry
Answers
Answer:
yes
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
2(4x - 2) = 8(x - 7)
Answers
Answer:
no solution
Step-by-step explanation:
2(4x - 2) = 8(x - 7)
8x - 4 = 8x - 56
0x = -52
no solution
Answer:
2(4x-2) = 8(x-7)
Distribute on both sides
2(4x)-2(2) = 8(x)-(7)(8)
Simplify
8x - 4 = 8x - 56
Subtract 8x from both sides to balance the equation.
-4 = -56
This is not equal.
Therefore the answer is no solution
How can you find 75% of any number?
Answers
Answer:
Multiply the number by 0.75
Step-by-step explanation:
75% of a number is also a number * 75/100
Now 75/100=3/4 so 75% of a number is the number *3/4.
So to find 75% of any number, you just multiply it by 3 and divide it by 4.
Select the correct answer from each drop-down menu.
The simplified form of [look at the picture] is ____ (-pi, pi, 2 times pi). It’s estimated value is ____ (3.14, 6.28, -3.14)
Sorry if this was confusing the read! One of the answers in the parentheses are supposed to fill in the blank!
Answers
Answer:
The answer is pi and the estimate is 3.14
Step-by-step explanation:
Just took the test for plato and Edmentum users only
The estimated value of the expression is π which is approximately equal to the number 3.14.
What is simplification?Simplification is to make something easier to do or understand and to make something less complicated.
The expression is given below.
[tex]\Rightarrow \dfrac{5\sqrt2 \pi - 4\sqrt2 \pi}{\sqrt2}[/tex]
Taking √2and π common, then we have
[tex]\rightarrow \dfrac{(5 - 4)\sqrt2 \pi}{\sqrt2}\\\\\\\rightarrow \dfrac{\sqrt2 \pi}{\sqrt2}\\\\\\\rightarrow \pi \approx 3.14[/tex]
The value of the expression is 3.14.
More about the simplification link is given below.
https://brainly.com/question/12616840
#SPJ2
w-13=27
[tex]w - 13 = 27[/tex]
how do i do this?
Answers
Which dot plot matches the tally chart below?
A 2-column table with 5 rows. Column 1 is labeled Pull-ups Completed in one minute with entries 1, 2, 3, 4, 5. Column 2 is labeled Tally with entries 2, 5, 3, 1, 2.
A dot plot titled Pull-ups completed in one minute goes from 0 to 6. 0 has 0 dots, 1 has 2 dots, 2 has 5 dots, 3 has 3 dots, 4 has 1 dot, 5 has 2 dots, and 6 has 0 dots.
A dot plot titled Pull-ups completed in one minute goes from 0 to 6. 0 has 0 dots, 1 has 2 dots, 2 has 2 dots, 3 has 3 dots, 4 has 1 dot, 5 has 2 dots, and 6 has 0 dots.
A dot plot titled Pull-ups completed in one minute goes from 0 to 5. 0 has 0 dots, 1 has 2 dots, 2 has 5 dots, 3 has 3 dots, 4 has 1 dot, 5 has 0 dots.
A dot plot titled Pull-ups completed in one minute goes from 0 to 6. 0 has 0 dots, 1 has 2 dots, 2 has 5 dots, 3 has 3 dots, 4 has 1 dot, 5 has 1 dot, and 6 has 0 dots.
Answers
Answer:
option 1
Step-by-step explanation:
Answer: 1st one
Step-by-step explanation:
For the given hypothesis test, determine the probability of a Type II error or the power, as specified. A hypothesis test is to be performed to determine whether the mean waiting time during peak hours for customers in a grocery store has increased from the previous mean waiting time of 8.3 minutes. Preliminary data analyses indicate that it is reasonable to apply a -test. The hypotheses are H 0: μ = 8.3 H1: >8.3 The population standard deviation is 3.8 minutes. The sample size is 50. The significance level is 0.05. Find the probability of a Type II error if in fact the mean waiting timeu, is 9.8 minutes. A. 0.125 B. 0.05 C. 0.875 D. 0.95
Answers
Answer:
the probability of a Type II error if in fact the mean waiting time u, is 9.8 minutes is 0.1251
Option A) is the correct answer.
Step-by-step explanation:
Given the data in the question;
we know that a type 11 error occur when a null hypothesis is false and we fail to reject it.
as in it in the question;
obtained mean is 9.8 which is obviously not equal to 8.3
But still we fail to reject the null hypothesis says mean is 8.3
Hence we have to find the probability of type 11 error
given that; it is right tailed and o.5, it corresponds to 1.645
so
z is equal to 1.645
z = (x-μ)/[tex]\frac{S}{\sqrt{n} }[/tex]
where our standard deviation s = 3.8
sample size n = 50
mean μ = 8.3
we substitute
1.645 = (x - 8.3)/[tex]\frac{3.8}{\sqrt{50} }[/tex]
1.645 = (x - 8.3) / 0.5374
0.884023 = x - 8.3
x = 0.884023 + 8.3
x = 9.18402
so, by general rule we will fail to reject the null hypothesis when we will get the z value less than 1.645
As we reject the null hypothesis for right tailed test when the obtained test statistics is greater than the critical value
so, we will fail to reject the null hypothesis as long as we get the sample mean less than 9.18402
Now, for mean 9.8 and standard deviation 3.8 and sample size 50
Z = (9.18402 - 9.8)/[tex]\frac{3.8}{\sqrt{50} }[/tex]
Z = -0.61598 / 0.5374
Z = - 1.1462 ≈ - 1.15
from the z-score table;
P(z<-1.15) = 0.1251
Therefore, the probability of a Type II error if in fact the mean waiting time u, is 9.8 minutes is 0.1251
Option A) is the correct answer.
What is the reciprocal of 1 3/13
Answers
Answer:
13/16
Step-by-step explanation:
First, write 1 3/13 as a fraction.
1 3/13 = 1 + 3/13 = 13/13 + 3/13 = 16/13
The reciprocal of 16/13 is 13/16.
Answer: 13/16
calculate the surface area of the region obtained by revolving the region under the graph of f(x) about the x-axis for x=1 to x=2
Answers
Answer:
a
Step-by-step explanation:
The complex numbers u and v are given by u = 1 + 2sqrt3i and v = 3 + 2i. In an Argand diagram,
u and v are represented by the points A and B. A third point C lies in the first quadrant and is
such that BC = 2AB and angle ABC = 90Å. Find the complex number z represented by C, giving
your answer in the form x + iy, where x and y are real and exact
Answers
Please answer for instant brainliest .
Answers
Answer:
Its the last one
Step-by-step explanation:
functions please helpp
Answers
Answer:
Functions:
3. The chart with arrows
4. The graph
Not Functions:
1. (1,1), (2,2), (3,3), (1,4)
2. (1,17), (0,16), (0,15), (-2,17)
Step-by-step explanation:
Functions do not have repeating domains (x-coordinates).
Hope it helps!
A bowling alley has a one-time charge of $2.50 to rent a pair of shoes and a charge of $2.00 for each game bowled. The function f (x)
represents the total cost to bowl x games.
Which equation represents f (x)?
O A f(x) = 2.5x + 2
O B. f (x) = 2x + 2.5
O c f(x) = (2.5 + 2)x
OD. f (x) = (2.5 - 2)x
Answers
Answer:
B. f (x) = 2x + 2.5
Step-by-step explanation:
Linear function:
A linear function has the following format:
[tex]y = mx + b[/tex]
In which m is the value that y changes by when x increases by 1, and b is the flat fee.
A bowling alley has a one-time charge of $2.50 to rent a pair of shoes and a charge of $2.00 for each game bowled.
This means that [tex]m = 2, b = 2.50[/tex]
So
[tex]f(x) = 2x + 2.5[/tex]
And the correct answer is given by option b;
please help i will mark the person that gets this right
Answers
Answer:
Maria made more
Step-by-step explanation:
Solve for u.
–8u-16 =-6(u-5)
Simplify your answer as much as possible.
Answers
Answer:
-8u-16=-6u+30
-8u+6u=30+16
-2u=46
u=-46/2
u=-23
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
First multiply 6 by u and 7 to get 6u+7
next add -8u + 6u and get -2u
then subtract 42 from both sides of the equation (28-42)
finally divide -2u from both sides of the equation and get 7
how can i rewrite that with exponents instead of repeated multiplication
Answers
Answer:
10^12
Step-by-step explanation:
Add the exponents when you multiply numbers with exponents
please help me with these two questions!! show work too!
Answers
Answer:
x 37 y 30
Step-by-step explanation:
hopes it helps yo
Nine times a number is 30 more than three times that number. Find the number
Answers
Answer:
From this question, we can write
Let n be the number.
9n=3n+30
6n=30
n=5
We find that the number is 30.
Hi there!
it would be 10.. if your asking for what multiply by 9 and 3 more than the number.
1.Find common multiply:
[tex]9,18,27,36,45,54,63,72,81,90,99[/tex]
[tex]30,60,90,120[/tex]
2.Find what nine can multiply to and 30 can also:
[tex]=90[/tex]
3.Divide two terms:
[tex]90*9=10[/tex]
This means, the number would be 10.
Geometry
please help asap!
Answers
Step-by-step explanation:
AB = 3
by similaritiy criterion
CE/ CB= ED/AB
4/6= 2/AB
AB = 3
plz mark my answer as brainlist plzzzz also vote me ..if you find it useful.
Please anyone help me on this
Answers
Step-by-step explanation:
iiiiii wiiish iit iis correeeeect
The rectangle has an area of x^2-9 square meters and a width of x-3 meters
Answers
We get length as (x+3).
So length is (x+3) meters
–5(–x + 4)
need help
Answers
Answer:
5x−20
Step-by-step explanation:
−5(−x+4)
=(−5)(−x+4)
=(−5)(−x)+(−5)(4)
=5x−20
Matthew wanted a laptop for his birthday. He
found one on sale for 15% off the original price.
If the original price was $1,200, how much did
the laptop cost before taxes were applied?
Answers
Answer:
$1020
Step-by-step explanation:
0.155x1200
1200-180=
1020
Help me pls
Is it A B or C
Answers
Answer:
b
Step-by-step explanation:
Answer:
a. 80°
b. Corresponding Angles
Step-by-step explanation:
We are given lines with a certain amount of angles, we are then asked how much is angle A and which answer justifies question A.
A.We can see that in angle E, it is 80 degrees, look at a again and realize that they no different from eachother, their angle length is the exact same, therefore angle A is also 80°.
B.
Let's define all the types given :
Corresponding - Two angles crossed by another line
Alternate - Angles that are in opposite positions
Vertically Opposite - Angles formed when two lines intersect.
Which would fit this description?
Corresponding Angles
3y - 7 + 5 - 4y + 9y
Answers
Answer:
8y-2
Step-by-step explanation:
3y - 4y = -1y
-1y + 9y = 8y
-7 + 5 = -2
Solve 5|x – 4| ≥ –10
Question 20 options:
A)
No solution
B)
2 ≤ x ≤ 6
C)
x ≤ 2 or x ≥ 6
D)
All real numbers
Answers
Answer:
This question doesn't have a solution
Step-by-step explanation:
1.2m=8.4 inverse operation
Answers
Answer:
m = 7
Step-by-step explanation:
1.2m = 8.4
m is being multiplied by 1.2
to get m alone, we do the inverse operation to multiplication which is division.
Divide both sides by 1.2
1.2m/1.2 = 8.4/1.2
m = 7
Answer:
m=7
Step-by-step explanation:
8.4/1.2=7
Sue played the same computer game.
She won 12 of the games she played, and so she estimated the probability of winning each game to be 0.4
How many games did Sue play?