Answer: 80
Step-by-step explanation:
Sin x = cos (90-x)
Like sin 30 = cos (90-30) =cos 60
So
90-x=90-80
Then
X=80
Verify your solution by finding the sum of the angles of sin and cos, it will be 90
Answer:
Step-by-step explanation:
Sin Ф = Cos (90 - Ф)
Comparing with this
Sin 80 = Cos (90 - 80) = Cos 10
So, x = 80
Write <, >, or = draw a quick picture if you need to.
Look at the attached picture
Hope it will help you.
Answer:
Answer is attached to the picture
hope this helps
brainliest appreciated
good luck! have a nice day!
I need help ! What's 2+2-8^2+208
Answer:
148
Step-by-step explanation:
Answer:
148
Step-by-step explanation:
4-64+208=148
Hope this helps...Pls Mark as Brainliest!!
what is 8h+7m
need help please!!!!
Answer: 14 hm
Step-by-step explanation:
Just add numbers together then put letters in order they show in equation
Answer:
I’m not 100% sure what you mean but if h is hours and m is minutes then it is 487 minutes but we need values for each letter if that is what the question is asking for.
Step-by-step explanation:
for 9-10+3 gives 2 , but doesnt we start from addition , e.g 10+3 is 13 then 9 -13 gives us -4 . can someone explain .
9 - 10 + 3 =2
START FROM ADDITION
-10 +3= -7+9= 2
Ur mistake was the negative 10
Use the order of operations to evaluate the expression. 4 × ( 3 4 − 1 2 ) + 3 × 6
A. 19
B. 20 1 2
C. 24
D. 33
Answer:
19
Step-by-step explanation:
4 × ( 3/ 4 − 1/ 2 ) + 3 × 6
PEMDAS
Parentheses first
4 × ( 3/ 4 − 2/4 ) + 3 × 6
4 × ( 1/4 ) + 3 × 6
Then multiply and divide from left to right
1 + 18
19
You will flip a coin 5 times and roll a die 10 times and record your findings.
What is the probability that you get heads and the number 1. Write your
answer as a percent.
Put your answer here:
P (Heads and 1)
=
Answer:
C
Step-by-step explanation:
The volume of a cylinder is 576Pi cubic inches. The radius of the circular base is 4 inches. What is the height of the cylinder? Recall the formula V = pi r squared h. 18 inches 24 inches 36 inches 72 inches
Answer: 36 inches
Step-by-step explanation:
Since we know that the volume of the cylinder is 576π and that the radius is 4 inches, we can fill in the given numbers before solving the unknown.
V = π * 4^2 * h
π(pi) is the same as 3.14
4^2 is the same as 4 * 4 which is 16
Volume = 1,808.64 (576π)
First, we will be replacing the variables with the given numbers:
V = π * 4^2 * h --> 1,808.64 = 3.14 * 16 * h
To get the unknown, we first have to make sure it is by itself. To do that, we must divide 1,808.64 by 3.14 which is 576. Now we have 576 = 16 * h, to get to 'h', we must divide one more time, 576 divided by 16 is 36.
We are left with 36 = h. So the final answer is 36.
Answer:
c
Step-by-step explanation:
Find two numbers whose square increased by 15 equals 8 times the number.
Answer:5 and 3
So we let the number take the letter b, anc the expression of the question is:
b^2+15=8×b.....so
b^2+15=8b
Then we take the 8b to the other side of the equal sign so that it becomes...
b^2+15-8b=0
Hence it becomes a quadatic equation following the principle ax^2+bx+c where x is the unknown...
From there we work out to get two different numbers...either b-5=0
b=5
Or b-3=0
b=3
So the two numbers are 5 and 3
Simplify: 9p - 2p2 + 5p
Answer:
p(9-4+5) = 0p = indeterminate
Step-by-step explanation:
there's no explanation, it's a simple concentration
Answer: 5p3 - 2p2 + 14p - 4
Factor completely: b^8+a^2b^4+1/4a^4
Answer:
(b^4+a^2/2)^2
Step-by-step explanation:
PLEASE ANSWER!!!!! I WILL MARK YOU AS BRAINLIEST!!!!! IT IS HIGHLY APPRECIATED!!! :)
Answer:
A number less than 4 was rolled 18 times.
The number cube was rolled 50 times. The relative frequency of rolling a number less than 4 is 36%.
what is 1.2 -0.145 because last time I did this I got it wrong
Answer:
1.055 is the answer
Answer:
1.055
Step-by-step explanation:
1.2-0.145=1.055
If 0 lies in the quadrant IV. What can be the value of cos 0?
Answer:
Positive one
Step-by-step explanation:
The angle 0 does not lie in any of the four quadrants, it lands directly in between quadrants I and IV. The value of cos 0 is always 1.
Answer:
d) 3/5
Step-by-step explanation:
how do you interpret the correlation coefficient?
Answer:
Perfect: value is near ± 1
High degree: coefficient value lies between ± 0.50 and ± 1
Step-by-step explanation:
Perform the following
mathematical operation, and
report the answer to the
appropriate number of
significant figures.
7.273 - 12.37 = [?]
Answer:
-5.10
Step-by-step explanation:
shrug
A normal distribution has a mean of 104 and a standard deviation of 1.9.
What is the z-score of 108?
Work Shown:
x = 108 is the raw score we want to transform
mu = 104 is the mean
sigma = 1.9 is the standard deviation
z = (x-mu)/sigma
z = (108-104)/1.9
z = 4/1.9
z = 2.10526315789473 which is approximate
z = 2.11 rounding to two decimal places
I'm rounding to two decimal places because many z tables will work with this level of precision.
14 Explain why adding 10% GST and then applying a 10% discount does not give you the
pre-GST price.
15 Other countries around the world also have a GST. In Canada the GST is 5%, in New Zealand it is
15% and in Singapore it is 7%.
Explain how you could find the pre-GST price on items sold in each of these countries?
Answer:
7% because the gst price is sold in cheacb countys
Step-by-step explanation:
because me got big brain
In ΔGHI, the measure of ∠I=90°, the measure of ∠G=34°, and HI = 7 feet. Find the length of GH to the nearest tenth of a foot.
Answer:
GH ≈ 12.5 ft
Step-by-step explanation:
Using the sine ratio in the right triangle
sin34° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{HI}{GH}[/tex] = [tex]\frac{7}{GH}[/tex] ( multiply both sides by GH )
GH × sin34° = 7 ( divide both sides by sin34° )
GH = [tex]\frac{7}{sin34}[/tex] ≈ 12.5 ft ( to the nearest tenth )
If two fair dice, one red and one white, are rolled, in how many ways can the result be obtained?
The sum of the two dice is less than 5.
O A. 4 ways
OB. 10 ways
OC. 6 ways
OD. 5 ways
Answer:
C. 6 ways
Step-by-step explanation:
When two fair dice are rolled, the sample space of the outcome is given below:
[tex](1,1) (1,2) (1,3) (1,4) (1,5) (1,6)\\(2,1) (2,2) (2,3) (2,4) (2,5) (2,6)\\(3,1) (3,2) (3,3) (3,4) (3,5) (3,6)\\(4,1) (4,2) (4,3) (4,4) (4,5) (4,6)\\(5,1) (5,2) (5,3) (5,4) (5,5) (5,6)\\(6,1) (6,2) (6,3) (6,4) (6,5) (6,6)[/tex]
Where in the pair (x,y), x represents the red die and y represents the white die.
The outcome in which the sum of the two dice is less than 5 are:
[tex](1,1) (1,2) (1,3) \\(2,1) (2,2) \\(3,1)[/tex]
Therefore, this result can be obtained in 6 ways.
The correct option is C.
Considering all the possible outcomes, it is found that the number of times a sum of the two dice less than 5 can be obtained is:
C. 6 ways
What are the possible outcomes when two dices are rolled?(1,1), (1,2), (1,3), (1,4), (1,5), (1,6)
(2,1), (2,2), (2,3), (2,4), (2,5), (2,6)
(3,1), (3,2), (3,3), (3,4), (3,5), (3,6)
(4,1), (4,2), (4,3), (4,4), (4,5), (4,6)
(5,1), (5,2), (5,3), (5,4), (5,5), (5,6)
(6,1), (6,2), (6,3), (6,4), (6,5), (6,6)
Of those, the ones with a sum of less than 5 are given by:
(1,1), (1,2), (1,3), (2,1), (2,2), (3,1)
6 ways, hence option C is correct.
A similar problem, in which the number of possible outcomes is found, is given at https://brainly.com/question/24314866
please help i will give brainliest, thanks and more points
THESE QUESTIONS ARE FOR THE SHAPE IN THE PICTURE!
1) how many vertices does it have
2) how many total faces, including bases does it have
3) how many edges does this figure have
Answer:
Vertices: 10
Faces: 7
Edges: 15
Step-by-step explanation:
Answer:
1. 10
2. 7
3. 15
Step-by-step explanation:
what is the explicit formula for this sequence? -6,-2,2,6,10...
Answer:
4
Step-by-step explanation:
For each number, you have to keep adding a positive 4 to get the next number in he sequence.
The picture is up there thank you :))
Answer:
14
Step-by-step explanation:
Do PEMDAS, it helps a lot.
Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction (PEMDAS)
3+ 6 x (5+4) /3 -7
3 + 6 x (9) /3-7
3 + 54/3 - 7
3 + 18 -7
21-7
14
Write a equation for the new circle obtained by translating the circle:
(x-2)^2+(y+4)^2=36 by 6 units to the right and 4 units up
Answer:
bruvulmuffin
Step-by-step explanation:
The diagram below shows the rectangle PLUM.
P
L
8
M
U
Find the area of rectangle PLUM.
Answer:
Area of rectangle PLUM = 75.00 square units
Step-by-step explanation:
Since diagonal of rectangle divides the rectangle into two equal triangles,
Therefore, area of the rectangle PLUM = 2× area of triangle PLM
By the mean proportional theorem,
In ΔPLM,
AP² = AM × AL
6² = AM × 8
AM = [tex]\frac{36}{8}[/tex]
AM = 4.5 units
Area of PLM = [tex]\frac{1}{2}(\text{Base})(\text{height})[/tex]
= [tex]\frac{1}{2}(ML)(AP)[/tex]
= [tex]\frac{1}{2}(8 + 4.5)(6)[/tex]
= 12.5 × 3
= 37.5 units²
Now area of rectangle PLUM = 2×37.5 = 75 units²
Therefore, area of the rectangle is 75.00 square units.
Answer: 75
Step-by-step explanation: Khan Academy
Which will hold more juice, 14 cans of 150 ml or 2L bottles?
Answer:
14 can of 150 ml
Step-by-step explanation:
14 times 150 ml is 2100 ml.
Then you have to convert 2100 into L.
Which will get you 2.1 L
And there is your answer
PLEASE MARK AS BRAINLIEST
Katie has 36 coins in her jar (nickels, dimes, and quarters) totalling $4.20. She has twice as many dimes as quarters. How many nickels does Katie have?
Answer:
I think you need to mutply those. And you will get your answer.
Step-by-step explanation:
there was a seller of horses, who sold all his horses to three people. To the first man he sold half of all his horses and a half of a horse. to the second man he sold half of what he had left and half of a horse. To the third man he again sold half of what was left and a half of a horse. How many horses did he have at first?
Answer:
17
Step-by-step explanation:
The total number of horses he had at first was 7 horses.
What are word problems?Word problems in mathematics involve careful understanding and they are those methods we use in solving real-life cases by using:
Basic arithmetic operations, Fractions, and/orAlgebraic expressions etc.From the given information:
Let the half of all his horses to the first man be x and half of a horse be yLet half of what is left to the second man be z and half of a horse be yLet half of what is left to the third man be a and half of a horse be y.Then, we can have the system of equations for the three cases to be:
[tex]\mathbf{\dfrac{1}{2}x + \dfrac{1}{2}y = 3 ---- (1)}[/tex]
Making (y) the subject and ignoring (x), we have:
[tex]\mathbf{y = \dfrac{3 - \dfrac{1}{2}}{\dfrac{1}{2}} = 5}[/tex]
y = 5
For the second man;
[tex]\mathbf{\dfrac{1}{2}z + \dfrac{1}{2}y = 3 ---- (2)}[/tex]
[tex]\mathbf{z= \dfrac{3 - \dfrac{1}{2}(5)}{\dfrac{1}{2}} = 1}[/tex]
z = 1
For the third man:
[tex]\mathbf{\dfrac{1}{2}a + \dfrac{1}{2}y = 3 ---- (2)}[/tex]
[tex]\mathbf{a= \dfrac{3 - \dfrac{1}{2}(5)}{\dfrac{1}{2}} = 1}[/tex]
a = 1
Thus, the total number of horses he had at first were:
= 5 + 1 + 1
= 7 horses
Learn more about word problems here:
https://brainly.com/question/13818690
Please help with the last part I don't get ti
21:20
In which step did Yvonne first make an error?
Yvonne is solving the quadratic equation 6x2 + 24x + 7 = 0
by completing the square. Her first four steps are shown in
the table.
Yvonne's Work
Step 1
Step 2
Step 3
Step 4
Step 1
Step 2
6x² +24x+7-0
6x² +24x - 7
6(x²+4x) -7
6(x²+4x+4) - 3+24
6(x+2)²-27
Step 3
Step 4
Mark this and return
Save and Exit
Next
Submit
Answer:
Step 2Step-by-step explanation:
Given the quadratic equation 6x² + 24x + 7 = 0, the following steps must be followed when finding the roots using the completing the square method.
Step 1: Subtract 7 from both sides
6x² + 24x + 7 - 7= 0 -7
6x² + 24x = -7
Step 2: divide through by the coefficient of x²
6x²/6 + 24x/6 = -7/6
x² + 4x = -7/6
Step 3: Add half of the coefficient of x (i.e 4/2 = 2) to both sides of the equation to complete the square of the equation x² + 4x.
x² + 4x + 2= -7/6 + 2
(x+2)² = -7/6 + 2
(x+2)² = 5/6
Step 4: taking the square root of both sides
√(x+2)² = √5/6
x+2 = ±√5/6
x = -2±√5/6
x = -2+√5/6 and -2-√5/6
Based on the conclusion above, it can be seen that Yvonne made the first error in step 2. Yvonne suppose to divide through by the coefficient of x² (i.e 6)
Find the missing factor.
(5 + 3) + 8 = 5 + (3 + ? )
Answer:
8
Step-by-step explanation:
(5 + 3) + 8 = 5 + (3 + ? )
8 + 8 = 5 + (3+x)
16 = 5 +(3+x)
-5. -5
11 = 3+x
-3. -3
8 = x
Or just guess 8 because its addition and it doesn't matter in what they are ordered