Answer:
Yes
Step-by-step explanation:
Because 12-15=-3, and -3<3
I need help with this problem if anyone can help me please do thanks;)
Answer:
c + c or 2c depending on what you're looking for
Step-by-step explanation:
5c - 4c + c
c + c
2c
what does cos mean in math?
Answer:
cosine
Step-by-step explanation:
"cos" is an abbreviation for "cosine," the name of the trig function that relates the hypotenuse of a right triangle to the length of the side adjacent to the angle of interest.
For an angle measured in radians, the value of the cosine of the angle is defined by the power series shown in the second attachment. Any scientific or graphing calculator can evaluate this function. Generally, best accuracy from a calculator is obtained for angles between -2π and +2π radians, or ±360°. Calculators generally can use angles expressed in degrees or radians, so care is required to make sure the calculator mode matches the units you are using. (Spreadsheet functions typically require angles to be in radians.)
The cosine function is periodic, with a period of 2π radians. Its value for x=0 is 1. A graph of the cosine and sine (abbreviated "sin") functions is shown in the third attachment. Each is a horizontal shift of the other.
__
The three primary trig functions relate pairs of sides of a right triangle to one of the acute angles. The relationship between trig functions and sides is summarized in the mnemonic SOH CAH TOA. The first attachment shows what that means.
How do I simplify linear expressions.
Answer:
Step-by-step explanation:
Simplify both sides of the equation and combine all same-side-like terms.
Combine opposite-side like terms to obtain the variable term on one side of the equal sign and the constant term on the other.
Divide or multiply as needed to isolate the variable.
Then double-check the answer.
Help ASAP
Polygons QRST and Q′R′S′T′ are shown on the coordinate grid:
A 180-degree clockwise rotation about the origin followed by a translation 1 unit to the right.
A 180-degree clockwise rotation about the origin followed by a translation 1 unit to the left.
A translation 1 unit to the left followed by a 270-degree counterclockwise rotation about the origin.
A translation 1 unit to the right followed by a 270-degree counterclockwise rotation about the origin.
Answer:
A 180-degree clockwise rotation about the origin followed by a translation 1 unit to the left.
Answer:
A 180-degree clockwise rotation about the origin followed by a translation 1 unit to the left.
Step-by-step explanation:
Jen bought 5 equal-priced items. If the total tax for all the
items was $2 and she paid a total of $42, how much did
each item cost?
Write and solve an equation to answer the question, and then identify the
statement that is not true.
A. x represents the cost of each item.
B. The equation is 5x + 2 = 42.
C. The first step in solving the equation is to subtract 2 from each
side.
O D. The solution is x = 5.
The distance from Remington to greenfield is 19 miles about how many miles is it , rounded to the nearest ten
Answer:
20 because 19 is the nearest number to 10
Step-by-step explanation:
Hope this helps you!!!!! :D
What is -5x squared - 2x squared?
If you're talking about (-5x^2 - 2x^2), It'd be -7x^2.
If you're talking about (-5x)^2 - (2x)^2, it'd be 21x^2.
I assume you're talking about the first one, though.
Which properties justify the steps taken to solve the system? {2a 7b=03a−5b=31 Drag the answers into the boxes to match each step. 10a 35b=0; 21a−35b=217 31a = 217 a = 7 2(7) 7b=0 14 7b = 0 7b=−14 b=−2.
The values of a and b are 7 and 2.
Linear systemIt is a system of an equation in which the highest power of the variable is always 1. A one-dimension figure that has no width. It is a combination of infinite points side by side.
Given
2a + 7b =0 .....1
and 3a - 5b = 31 .....2
To findThe solution of a and b.
How to find the solution of a and b?Equation (1) x 5 and equation (2) x 7, we get
10a + 35b = 0 and 21a - 35b = 271
Add the equation, we have
31a = 271
Divide both sides by 31
a = 7
Put value of a in equation 1
2x7 + 7b = 0
Subtract 14 from both sides
2b = -14
divide both sides by 2
b = -2
The values of a and b are 7 and 2.
More about the linear system link is given below.
https://brainly.com/question/20379472
is my answer right? if not break the hard news and give me the right one
Answer:
Yes
Step-by-step explanation:
12 - 8 / 4 - 2 --> Rise over Run
4/2 or 2
This is the slope
Y-Intercept:
12 (y2) - 8 (y1) = 4
112% of 97 is what? how do I solve this step by step?
112 percent *97
= (112/100)*97
= (112*97)/100
= 10864/100 = 108.64
1/7 + 3/14 can I have some help please
Answer:
5/14 or .36
Turn 1/7 into fourteenths and add.
Answer:
5/14
Step-by-step explanation:
Steps for adding fractions
Find the least common denominator or LCM of the two denominators:
LCM of 14 and 7 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14
For the 1st fraction, since 14 × 1 = 14,
3/14 = 3 × 1/14 × 1 = 3/14
Likewise, for the 2nd fraction, since 7 × 2 = 14,
1/7 = 1 × 2/7 × 2 = 2/14
Add the two like fractions:
3/14 + 2/14 = 3 + 2/14 = 5/14
So, 3/14 + 1/7 = 5/14
Ellen has 25 hair clips seven of them are blue and the rest are purple what percent of the hair clips were blue
A unit cube is shown below. Which of these can best be measured by using unit cubes?
A. Weight
B. Area
C. Volume
D. Temperature
On Tuesday, 280 people attended a play. 345 people attended the play on Friday. By what percent did the attendance increase? **STEP BY STEP EXPLANATION PLEASE AND THANK YOU!**
Answer:
23%
Step-by-step explanation:
345-280=65
65/280=0.232142857
0.232142857x100=
23.214285714
23%
a game used a standard of six sided dice what is the probability it will be a five
Answer:
1/6
Step-by-step explanation:
As mentioned, a regular dice has 6 sides: each labeled numbers 1 through 6. There are a total of 6 outcomes, so the denominator is 6. Since there is only a single 5 on the dice, the numerator is 1.
Therefore, the probability is 1/6.
Have a lovely rest of your day/night, and good luck with your assignments! ♡
There are 5 red crayons, 6 yellow crayons, and 11 blue crayons in a shoebox. What is the ratio of the total number of crayons to the number of yellow crayons
Answer:
6/16
Step-by-step explanation:
HELP PLS I DONT UNDERSTAND QUESTION IN PIC
9 + 10 i know what yall thinking its 19 but its not
Answer:
21
Step-by-step explanation:
i hope its right
19.explain The difference between (-12)^2 and -12^2
Answer:
See below
Step-by-step explanation:
(-12)²=144 while -(12²)=-144
I need help on subtracting mixed numbers this is one im stuck on 3 - 1 3/4. how do you get the answer i need help
Answer:
1 1/4
Step-by-step explanation:
3- 1 3/4= 1 1/4
could you help me again and explain how you do it please I will give you 50 points
Answer:
9 meters sorry if thats wrong
Step-by-step explanation:
Answer:
9 mStep-by-step explanation:
Sides of the new mural are:
1 m and 3 + 0.5 = 3.5 mIts perimeter is:
P = 2(l + w)P = 2(1 + 3.5) = 2*4.5 = 9 mwrite an approximate equation in slope intercept form (y=mx+b) of the line you drew in the scatterplot above
Answer:
y=3x+2
Step-by-step explanation:
Find the slope. Slope=Rise/Run=3. Use plot points to find intercept. 5=3(1)+b, 5=3+b, 2=b
Hello I’m in algebra and I need help on questions I’ll give brainlist ASAP ANSWER ALL OF THEM!
Answer:
i think you should try it as yes first the do the task again but as no if it was wrong!
Step-by-step explanation:
don't doubt yourself you properly will get it right!
how to calculate how much off a number is from another formula
Using substitution, determine the solution to the system of equations. Include a photo of your work
X=4
and.
y=2x+8
Answer:
I can't submit a photo but here:
x = 4, y = 16
(4,16)
You can choose whichever format
Step-by-step explanation:
We have x given to us already. Since we know the value of x, we can input the value into the other equation to solve for y
Solve:
Substitute 4 for x:
y = 2x + 8y = 2(4) + 8y = 8 + 8y = 16Our solution is x = 4 and y = 16, or (4,16)
-Chetan K
Ty, who weighs 120 lbs, sits 5 ft to the left side on a seesaw. In order to balance the seesaw, Charley has to sit 6 ft to the right. How much does Charley weigh?
Ans: 144
Step-by-step explanation:
24 pounds per foot.
120+24=144
pls mark brainliest
Carrie buys 7/8 pound of red apples and 15/16 pound of green apples. Which answer is the most accurate estimate for how many more pounds of green apples she buys than pounds of red apple?
0 Pounds
1 Pound
1/2 Pounds (10 Points)
Answer:
0 pounds
Step-by-step explanation:
To bring [tex]\frac{7}{8}[/tex] to 16ths it goes to [tex]\frac{14}{16}[/tex]
prove that
2tan(π/4-A)÷1+tan²(π/4-A) = cos2A
Recall the following identities,
• 1 + tan²(x) = sec²(x)
• sin(2x) = 2 sin(x) cos(x)
• sin(x + y) = sin(x) cos(y) + cos(x) sin(y)
as well as the following properties of sine and cosine,
• cos(-x) = cos(x)
• sin(-x) = -sin(x)
Then we have
2 tan(π/4 - A) / (1 + tan²(π/4 - A)) = 2 tan(π/4 - A) / sec²(π/4 - A)
… = 2 tan(π/4 - A) cos²(π/4 - A)
… = 2 (sin(π/4 - A) / cos(π/4 - A)) cos²(π/4 - A)
… = 2 sin(π/4 - A) cos(π/4 - A)
… = sin(2 (π/4 - A))
… = sin(π/2 - 2A)
… = sin(π/2) cos(-2A) + cos(π/2) sin(-2A)
… = cos(2A)
as required.
An ambulance travels at 40 mph and can follow a 20-mile route making no stops to get to the hospital. A helicopter travels at one mile per minute, and the air route is 15 miles to get to the same hospital. However, the helicopter takes three minutes for takeoff and three minutes for landing. How many fewer minutes does it take for the helicopter to complete its trip (takeoff, flight and landing) than for the ambulance to complete its trip
Answer:
9
Step-by-step explanation:
The time required by the ambulance is ...
time = distance/speed
time = (20 mi)/(40 mi/h) = 1/2 h = 30 minutes
The time required by the helicopter is ...
trip time = takeoff time + route time + landing time
= (3 min) + (15 mi)/(1 mi/min) +(3 min) = (3 + 15 + 3) min = 21 min
The difference in times is ...
(30 min) -(21 min) = 9 min
The helicopter takes 9 fewer minutes for the trip.
Find the selling price is a store pays $60 for a rug and the markup is 20%.
Answer:
$72
Step-by-step explanation:
in a calculator type 20%x60 and it will say 12
so 12 is 20% of 60
then just add 60 and 12 together and it equals 72
