Let |a| = 12 at an angle of 25° and |b| = 7 at an angle of 105°. What is the magnitude of a + b? Round to the nearest decimal.
12.8
14.9
15.4
17.3
Answers
Answer:it’s 15.4
Step-by-step explanation:
I just took the test
Answer: B. 14.9
Not C.
Step-by-step explanation:
Related Questions
What is the equation of the line with a slope of 4 and a y-intercept of —2?
Answers
m = 4
y-int = -2
thus , the equation is y = 4x - 2
Each exterior angle of the regular n-gon has a measure of 3 degrees. How many sides does the polygon have?
Answers
Answer:
8 sides for this one
Step-by-step explanation:
hope this helps
Use x for the unknown number.
Twice an unknown number added to 48 is six times the same unknown number.
Answers
Answer:
2x+48=6x
Step-by-step explanation:
Total Cost of Computer Repair = $1,444.50
Shipping = 2 percent of Total Cost
If Sarah wanted to include a 15 percent gratuity, based on the total cost of the computer repair, excluding shipping, how would you find her new total cost?
Answers
Answer:
Its D
Step-by-step explanation:
0.02 ($1,444.50)
Answer:
D
Step-by-step explanation:
. Naty bought a dress for $24.95 and a skirt for $14.95. The sales clerk said the total cost including 9.5% sales tax was 49.40. Below are the steps the clerk completed.
Step 1: 24.95 + 14.95 = 39.90 Step 2: 39.90 + 9.5 = 49.40
Are the clerk's steps correct? If she is incorrect, identify her mistake and explain her error. Explain in writing how to accurately calculate the sales tax, total cost, and state the correct total. ( Round final answer to the nearest hundredth)
Answers
Answer:
39.995=40.00
Step-by-step explanation:
0.095 is tax he just added 9.5 he is not correct
Solve the following quadratic equation.
(x - 16)2 = 256 The 2 is the exponent so please don't misunderstand it lol, thank you for who ever helps me.
A. x = 30 and x = 8
B. x = -30 and x = -8
C. x = -32 and x = 0
D. x = 32 and x = 0
Answers
Answer:
D. x = 32 and x = 0
Step-by-step explanation:
You can solve it a multitude of ways one of the easiest ways for me was the quadratic formula.
A and B are independent events.
PA) = 0.6
P(B) = 0.4
What is P(AB)?
O A. 0.24
B. 0.6
O c.0.4
D. Not enough information
Answers
Answer:
not enough information
Answer:
It's 0.6
Step-by-step explanation:
Solve – 4y – 10 = 4(y - 3)
Answers
Answer:
y= 1/4
Step-by-step explanation:
Answer:
y=-7/8
Step-by-step explanation:
-4y-10=4y-3
add 10 on both sides
-4y=4y+7
subtract the four on the right from both sides
-8y=7
divide -8 on both sides
answer: -7/8
I need help with my math homework
Answers
Answer:
See below, sorry for taking so long
Step-by-step explanation:
1.
A. Slope is rise over run or y2 - y1 divided by x2 - x1
We have (-5, 1) and (-3, 7)
7 - 1 / -3 - (-5)
6 / -3 + 5
6 / 2 = 3
Slope = 3
B. So point slope form is y - y1 = m(x - x1)
We know the slope so:
y - 1 = 3(x - (-5))
C. Using the point slope we can move things around to get slope-intercept:
y - 1 = 3(x + 5)
y - 1 = 3x + 15
y - 1 + 1 = 3x + 15 + 1
y = 3x + 16
D. Standard form is Ax + By = C:
y = 3x + 16
y - y = 3x + 16 - y
0 = 3x + 16 - y
0 - 16 = 3x + 16 - y - 16
-16 = 3x - y
3x - y = -16
In a study investigating the effect of car speed on accident severity, the vehicle speed at impact was recorded for 5,000 fatal accidents. For these accidents, the mean speed was 46 mph and the standard deviation was 13 mph. A histogram revealed that the vehicle speed distribution was mound shaped and approximately symmetric. (Use the Empirical Rule.) (a) Approximately what percentage of vehicle speeds were between 33 and 59 mph
Answers
Answer:
68%
Step-by-step explanation:
Given that:
Mean speed (m) = 46
Standard deviation (s) = 13
Approximately what percentage of vehicle speeds were between 33 and 59 mph
Obtain the Zscore for P(Z < x) for both values and subtract :
For x = 33
Zscore :
Z = (x - m) / s
Z = (33 - 46) / 13 = - 1
p(Z < - 1) = 0.15866 ( Z probability calculator)
For x = 59
Zscore :
Z = (x - m) / s
Z = (59 - 46) / 13 = 1
p(Z < 1) = 0.84134 ( Z probability calculator)
Hence, 0.84134 - 0.15866 = 0.68268 = 0.68
0.68 * 100% = 68%
Enuncia 5 vectores que pertenecen a un mismo sub espacio
Answers
Answer:
what?
Step-by-step explanation:
26. Which is NOT a zero of the following function?
f(x)= x + 3x? – X-3
A. 1
B. -1
C. 3
D. -3
Answers
Answer:
i think it is B i think im not too aure
31.8 dived 0.58 answer
Answers
Answer:
54.8275862069
Step-by-step explanation:
If you want rounded than 54
There are 40 marbles in a bin and 25% of the marbles are red how many in the bin are red
Answers
25% of 40=10
Answer:
10 marbles
Step-by-step explanation:
25% * 40= 1000
1000/100=10
=10 marbles
I NEED HELP PLZ ITS FOR MY FINAL
Answers
Help me please please
Suppose that the water level of a river is 34 feet and that it is receding at a rate of 0.5 foot per day. Write an equation for the water level, L, after d days. In how many days will the water level be 26 feet?
Answers
Answer:
L = 34 - 0.5d
21 feet
Step-by-step explanation:
The initial water level ; 34
the amount is rises per day; 0.5
"L" is the water level,
"d" is the days passed.
In order to find the water level, one will have to multiply the amount the water rises each day, by the days passed. Then one will have to subtract that from the initial water level, hence the equation formed is the following;
L = 34 - 0.5d
Substitute in 26 for "d", to solve for the water level after 26 days.
L = 34 - 0.5(26)
L = 34 - 13
L = 21
Paul spent $48.00 on three tickets to a concert. Janis spent $90.00 on five tickets to the same concert. How much did each ticket cost for the cheaper individual ticket?
Answers
Answer:
Paul's tickets costed 16 dollars each
while
Janis' s tickets costed 18 dollars each
Answer:
$16
Step-by-step explanation:
48 divided by 3 is 16. 90 divided by 5 is 18. Paul is getting the better deal. Each ticket is $2 less.
____________________
Answers
9514 1404 393
Answer:
x = 5
Step-by-step explanation:
We can subtract 3x, add 12, and divide by 4.
7x -12 = 3x +8
4x -12 = 8 . . . . . . . . subtract 3x
4x = 20 . . . . . . . . . . add 12
x = 5 . . . . . . . . . . . . divide by 4
qustion to give kagimatoby a brainly
Answers
Answer:
wdym
Step-by-step explanation:
Which is the best description for the graph?
O The graph is increasing everywhere.
O The graph is decreasing everywhere.
O The graph is increasing, then decreasing.
O The graph is decreasing, then increasing.
Answers
What is the slope of line that passes through the points (-3, 5) and (0, -1).
Answers
Answer:
[tex]m=-2[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Point (-3, 5)
Point (0, -1)
Step 2: Find slope m
Simply plug in the 2 coordinates into the slope formula to find slope m.
Substitute [SF]: [tex]m=\frac{-1-5}{0+3}[/tex]Subtract/Add: [tex]m=\frac{-6}{3}[/tex]Divide: [tex]m=-2[/tex]I don't understand 1/2 +1/6 what the answer
Answers
Answer:
4/6
Step-by-step explanation:
1/2=3/6+1/6=4/6
Answer:
4/6. If you reduce it you get 2/3
Step-by-step explanation:
Help please I don’t understand
Answers
Answer:
$52.00
if you need the difference, its $28.00
Answer:
$52
Step-by-step explanation:
The length of a rectangle is 3 centimeters less than five times its width. Its area is 14 square centimeters. Find the dimensions of the rectangle.
Find the Width and the Length
W=
L=
Answers
Answer:
The length of rectangle is 7 cm and width is 2 cm.
Step-by-step explanation:
Given that:
Area of rectangle = 14 square centimeters
The length of a rectangle is 3 centimeters less than five times its width.
Let,
L be the length and W be the width of the rectangle.
L = 5W - 3
Area of rectangle = Length * Width
14 = (5W-3)*W
[tex]14=5W^2-3W\\5W^2-3W-14=0[/tex]
Factorizing the equation;
[tex]5W^2-10W+7W-14=0\\5W(W-2)+7(W-2)=0\\(5W+7)(W-2)=0[/tex]
Either,
5W+7 = 0
5W = -7
W = -7/5
Or,
W-2 = 0
W=2
As width of rectangle cannot be negative, therefore,
Width = 2 centimeters
Length = 5(2) -3 = 10-3 = 7
Hence,
The length of rectangle is 7 cm and width is 2 cm.
What is the length of the line segment with endpoints (-1, -2) and (4, 10)?
Answers
Answer:
u smart biy
Step-by-step explanation:
PLEASE HELPPPP
Find the equation of the linear function represented by the table below in slope-
intercept form.
X
O
1
2
3
4
y
6
14
22
30
38
Answer: y =
Submit Answer
Answers
Answer:
yo done so easy
Step-by-step explanation:
A spinner that is equally divided into 6 sections and contains one yellow section is spun at the same time that a fair die is rolled. What is the probability that the spinner will land on the yellow section and the number rolled on the die will be 4?
Answers
Answer:
32%
Step-by-step explanation:
1/6=32%
Solve the equation.
-5r-1=7r+5
Answers
Answer:
r=-1/2
Step-by-step explanation:
(-5*-1/2=2.5)( 2.5-1=1.5) (7x -1/2= -3.5)-3.5+5 =1.5
You can save a significant amount of mortgage interest paid if you make one additional principal and interest payment a year. This will reduce a 30-year mortgage by around 6 years. It also increases your equity in the home faster. If you choose to pay one additional mortgage payment a year by paying 1/12 of it each month (make certain to note the extra money is to reduce principal), how much will you pay each month for a mortgage of $152,000 at 3.5% for 16 years?
Answers
Answer:
A = $237,120.00
I = A - P = $85,120.00
Equation:
A = P(1 + rt)
Calculation:
First, converting R percent to r a decimal
r = R/100 = 3.5%/100 = 0.035 per year.
Solving our equation:
A = 152000(1 + (0.035 × 16)) = 237120
A = $237,120.00
The total amount accrued, principal plus interest, from simple interest on a principal of $152,000.00 at a rate of 3.5% per year for 16 years is $237,120.00.
Which step(s) would create equations so that the coefficients of one of the variables are
opposites?
(A) Multiply the first equation by 7.
Multiply the second equation by 3.
(B) Multiply the first equation by -2.
Multiply the second equation by 4.
(C) Multiply the first equation by 2.
(D) Multiply the second equation by 4.
Answers
The second equation would become 8x - 8y = -28, and the 8y from the first equation and the -8y from the second would cancel out and you can solve for x.