Answers
These are my notes on trig ratios from last year. Hope this helps! :)
Related Questions
discriminate of 2x2 – 9x + 2 = –1
Answers
Answer:
The discriminant is less than 0, so there are two complex roots.
Step-by-step explanation: i think
A line passes through (2, −1) with slope 3. What is the equation of the line in slope-intercept form? A. y=3x+5 B. y=3x−7 C. y=13x+5 D. y=−13x
Answers
Answer:
B
Step-by-step explanation:
y=3x+a
3*2+a=-1
a=-7
A house costs $18,000, which is 9/10 the cost of a car. A motorcycle costs 1/5 the cost of the car, or 4/5 the cost of 100 cards. How much is the cost of 30 cards?
PLZ PLZ PLZ PLZ PLZ HELP!!!!!!!!!!!!!
Answers
The ratio of the cards is 4:5, or 18000:22500
22500/100 is 225
225 times 30 is 6750
Find the value of g when 59+ 12 equals 29 + 18.
Answers
Answer:
i dont know if you typed this correctly but 59+12=29+18 is false
Step-by-step explanation:
i know if what your looking for but o well
(–6)² – (–7)²
I need a step by step process.
Answers
please help i don’t know how to do this
Answers
Answer:
1.) 25
2.)81
3.)49
Step-by-step explanation:
(I recommend getting a Texas instruments TI-84 you can just plug in the numbers and it does it for you :)
can someone help me with this
Answers
Answer:
The first one is 45 hours
The second is 1361
25.45
26.1361
You roll an eight-sided die. What is the chance that it will land on either a 2 or a 5? Write your answer as a fraction.
Answers
Answer:
2/8 and the simplified version is 1/4
Step-by-step explanation:
Answer:
2/8
Step-by-step explanation:
First you know that it is a eight- sided die. 2 or 5 are two numbers so it is 2/8.
you put all of the numbers and count them up on the top as numerators ex: 2/ Then the number of the sided die as the denominator.ex: 2/8 Hope this helped.
Angad,malachy and Jim share £30 in A ratio 1:3:1 how much does each person get
Answers
Answer:
Angad=6
Malachay=3×6=18
Jim=6
Step-by-step explanation:
Angad,malachy and Jim share =£30 ratio =1:3:1
Let the part of the Angad=X
=3x
=X
So X+3x+X=30
5x=30
X=30/5
X=6
So part of Angad=6
Malachay=3×6=18
Jim=6
Step-by-step explanation:
A:M:J
1:3:1
let total amt be 5x
5x = 30
x = 6
thus, A get 6dollars , M get 18 and J 6
Topic: ratio and proportions
If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!
i need help pls help me what is the answer to -2(8)
Answers
Answer:
-16
Step-by-step explanation:
hope this helps love <3
HURRYYYYYYY PLS BEFORE 11:59
The choices are
A. 35
B. 145
C. 55
D. 75
Answers
Answer:
Pretty sure it is A.
Step-by-step explanation:
m4 is equal to m8 because they are same side interior angles and so you set the 2 equations equal to each other to find x. Then plug it in.
Answer:
i think 75
Step-by-step explanation:
sorry if wrong
Find the probability of getting four consecutive aces when four cards are drawn without replacement from a standard deck of 52 playing cards.
Answers
Answer:
P=0.0000037
P=0.00037%
Step-by-step explanation:
Probability
A standard deck of 52 playing cards has 4 aces.
The probability of getting one of those aces is
[tex]\displaystyle \frac{4}{52}=\frac{1}{13}[/tex]
Now we got an ace, there are 3 more aces out of 51 cards.
The probability of getting one of those aces is
[tex]\displaystyle \frac{3}{51}=\frac{1}{17}[/tex]
Now we have 2 aces out of 50 cards.
The probability of getting one of those aces is
[tex]\displaystyle \frac{2}{50}=\frac{1}{25}[/tex]
Finally, the probability of getting the remaining ace out of the 49 cards is:
[tex]\displaystyle \frac{1}{49}[/tex]
The probability of getting the four consecutive aces is the product of the above-calculated probabilities:
[tex]\displaystyle P= \frac{1}{13}\cdot\frac{1}{17}\cdot\frac{1}{27}\cdot\frac{1}{49}[/tex]
[tex]\displaystyle P= \frac{1}{270,725}[/tex]
P=0.0000037
P=0.00037%
A construction company is setting up signs on a 6 3/4 mile stretch of road. If the company places a sign every 3/4 of a mile, how many signs will it need?
Note: the company will place a Sign at the beginning of the stretch,
then every 3/4 of a mile.
Answers
Answer:
10
Step-by-step explanation:
6 3/4 ÷ 3/4 = 9, and plus the sign at the start of the road it would be 10
hope this helps :)
i need help again sorry
Answers
Answer:
I want say it is C just by how close in proximity it is to E
Step-by-step explanation:
The length of a rectangle is 4 inches greater than the width. The perimeter of the rectangle is 24 inches. What are the dimensions of the rectangle
Answers
Answer:
L=8, W=4
Step-by-step explanation:
2L+2W=p
2(4)+2(8)=p
8+16=24
Answer:
length = 8 in.; width = 4 in
Step-by-step explanation:
PLEASE HELP DUE SOON!!!
Jordan is mowing lawns to save money for the Camp Rodeo Field Trip. The total cost for the excursions, travel, and food will be $130. Jordan has already saved $50. Which of the following equations represents how much more money Jordan needs to save in order to go on the field trip?
A. x + 50 = 130
B. x - 50 = 130
C. x - 130 = 50
D. x = 50 + 130
Answers
Answer:
X + 50 = 130
Step-by-step explanation:
This is actually a subtraction equation although addition is how you set it up initially. X is the variable. You already have $50. You need $130.
To solve, subtract 50 from each side,
X + 50 - 50 = 130 - 50, and simplify,
X = 120.
Jordan will need $120 more to go to the Camp Rodeo Field Trip.
Hope this helps.
Find the slope and y-intercept of the following equation (Encuentra la pendiente y la
intersección con el eje y de la siguiente seuación)
(2 Points)
y = - 3r +9
slope = -3; y-intercept = 9
slope = 9; y - intercept - 3
slope = 3; y - intercept = 3
slope = 9; y - Intercept =
- 27
Answers
Answer:
slope is -3 and y intercept is 9
Step-by-step explanation:
use y = mr + b where m is the slope and m is the y intercept
Which could be the first step in solving the equation represented by the model below?
A. Add 4 negative unit tiles to both sides.
B. Add 4 negative unit tiles to the left side, and add 6 negative unit tiles to the right side.
C. Add 4 positive unit tiles to both sides.
D. Add 6 negative unit tiles to the left side, and add 4 negative unit tiles to the right side.
Answers
Answer: A. Add 4 negative unit tiles to both sides.
Step-by-step explanation: Hope this helps
Which statement about rigid transformations is true?
A.
A rigid transformation preserves only the side lengths of a polygon.
B.
A rigid transformation preserves only the angle measures of a polygon.
C.
A rigid transformation preserves both the side lengths and the angle measures of a polygon.
D.
A rigid transformation preserves neither the side l
Answers
Answer:
The answer is B because it is only the measure of the polygon
what is this Find the value of |-6| - 3(42 - 1).
Answers
Answer:
-117
Step-by-step explanation:
The absolute value cancels out the negative sign for the 6.
6 - 3(42-1)
= 6 - 3*41
= 6 - 123
= -117
Which of the following relationships represents joint variation?
Answers
Answer:
y=7x
Step-by-step explanation:
that what I heard in math ok
PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELP ME I BEGGING YOU PLZZZZZZZZZZZZZZZ HELP!!!! (55 POINTS)
1. Evaluate 8a - b if a = 10 and b = 6
74
38
1000
9000
2. Evaluate expression if a=3 and b=4 . 4b-5a
2
1
-8
8
3. Evaluate Expressions a=3 b=4, 7a + 8b x 2
110
100
80
85
4.Strawberries are $1.95 a pound. Write an expression for p pounds of strawberries.
$1.95+p
$1.95-p
$1.95/p
$1.95p
5. Kenneth has g gumballs. Maggie has 29 fewer gumballs than Kenneth. Choose the expression that shows how many gumballs Maggie has.
g+29
29g
g-29
g ÷ 29
6) 5 + 36 ÷ 2 x 3 - 4
7
55
12
78
7)18 + (6 – 2) × 2
26
29
40
44
8.Expand -3( 2r + 5s).
-6r - 15s
-6r + 15s
-6r - 15
-6r + 2s
9. Expand and simplify 5(2 - 3y)
10 - 15y
10 + 15y
10 - 2y
10 - 3y
10.Factor: 7x + 49y
7(x + 7y)
7(x + y)
can't be factored
7(x + 48y)
11. Factor 6p − 36
6(p − 6)
2(3p − 36)
3(2p − 6)
can't be factored
12. Which expression contains exactly 3 terms?
A. 5 + 6xy
B. 8 + 2y - 5x
C. 9 + 4t
D. 24xy
13. What is the coefficient of x?8 + 5x - y
A. 8
B. 0
C. 5
D. -5
14. Identify the "like terms" in the expression: 2x + 4y - 3x + y - x
A. 2x and 4y and -3x
B. 2x and -3x and x; 4y and y
C. they are all like terms
D. there are no like terms
15. Factor 5x − 25
Answers
Answer:
1. 74 because 8(10) - 6
2.4(4) - 5(3) = 1
3. 7(3)+8(4) * 2 = 106
4. A
5.a
6. 20.5
7.26
8.a
9.a
10a
Step-by-step explanation:
What slope is perpendicular to:
m = 5/8
Answers
The slope that is perpendicular to m = 5/8 is given by; m' = -8/5
When dealing with slope - intercept form of equation of a line, the general equation is;y = mx + c
where;
m is the slope
c is the y-intercept
Now, for a line to be perpendicular to a line above that has it's slope as m, the slope of this new line will be the negative inverse of the first slope. This is; m' = -1/mApplying that to our question, it means the slope that is perpendicular to m = 5/8 is; m' = -1/(5/8) = -8/5Read more at; https://brainly.com/question/21441448
.
HELPPP
The equation of the line in slope Intercept form is
Answers
Answer:
y = 60x + 40
Step-by-step explanation:
It is in the form of
y = mx + b
m is the slope
b is the y intercept.
The y intercept is 40, so it will be y = mx + 40.
The slope is 60, so y = 60x + 40!
help meee will give brainlistq ( please i will do anything but ASAP)
Answers
Answer:
y = 7/5 x + 34/5
Step-by-step explanation:
A grocery store sells a bag of 6 oranges for $3.90. What is the unit cost?
Pls Answer and I shall give u a- Thank You - Vielen Dank
Answers
Answer:
it would be 0.64
Step-by-step explanation:
what is slope intercept form?
Answers
Answer:
y=mx+b
anajsjsjsjsjsjsjjsmsm
y = mx + b
Hope this helps :)
9. FLUENCY: ONLY USE A CALCULATOR TO CHECK!
1500 + (6 + 4*) 37
Your answer
Answers
Answer:
1870
Step-by-step explanation:
1500 + (6 + 4) * 37
= 1500 + 10 * 37
= 1500 + 370
= 1870
Answer:
1870
Step-by-step explanation:
1500+(6+4)37
=1500+10*37
=1500+370
=1870
what's (-9n^6) (8n) equal?
Answers
Answer:
skp
Step-by-step explanation:
The point (-3, -5) is on the graph of a function. Which equation must be true regarding the function?
SAAB
Of(-3) = -5
f(-3,-5) = 8
f(-5) = -3
O f(-5, -3) = -2
Answers
Answer:
F(-3) = -5
Step-by-step explanation:
I got it right on the test