Answer:
−2x 2−2+2
Step-by-step explanation:
Find the direction of the vector <-3, -5>
Answer:
The vector
V
=
(
4
,
-
3
)
is at an angle of
−
36.67
°
to the positive
x
-axis.
Explanation:
I'll presume you're looking for the angle which the vector makes with the
x
-axis.
We use our old friend
tan
for this.
tan
θ
=
y
x
⇒
θ
=
tan
−
1
(
y
x
)
⇒
θ
=
tan
−
1
(
−
3
4
)
=
tan
−
1
(
−
0.75
)
⇒
θ
=
−
0.64
⇒
θ
≈
−
36.67
°
Because
tan
−
1
can only return angles between -90° and +90° (that is, in
Q
IV
or
Q
I
), we then check which quadrant the point
(
4
,
-
3
)
is in, to confirm whether we can keep this answer or if we need to add 180°.
(
4
,
-
3
)
is in quadrant 4, and so the value given by
tan
−
1
is fine as it is.
The vector
V
=
(
4
,
-
3
)
is at an angle of
−
36.67
°
to the positive
x
-axis.
A sample of 68 college students yields a mean annual income of $3248 and a standard deviation of $885. Find the margin of error in estimating μ at the 99% level of confidence.
Answer:
can put this solution on YOUR website!
margin of error is t(0.995 df=67)*s/sqrt(n)
t=2.65
the margin of error is 2.65*885/sqrt(68)=$284.40
Pls help me out I’m very confused
Answer:
7
Step-by-step explanation:
C= 2 pi r
14 pi= 2 pi r
7=r
The first three steps for completing the square to solve a quadratic equation are shown. What number goes in the boxes to complete the third step?
9514 1404 393
Answer:
C. 16
Step-by-step explanation:
The x-coefficient is -8. Half that is -4. The number that goes in the boxes is the square of -4: (-4)² = 16.
_____
It can help to keep in mind what the square of a binomial looks like:
(x -a)² = x² -2ax +a²
The coefficient of x is -2a. The constant is the square of half that (-2a/2)² = a².
Answer:
16
Step-by-step explanation:
The x-coefficient is -8. Half of -8 is -4. The number that goes in the boxes is the square of -4: (-4)² = 16.
Can someone please help me with these two I will mark u brilliant
Answer:
The first answer is $4.97. The second answer is 1 over 16.
Step-by-step explanation:
For the first question you have to subtract the money that the total price, $26.73 from the money that she has, $21.76 and you will get the find the difference that she needs.
For the second question think about it as mulitplying one quarter 4 times. So 1 multiplied four times still remains one and 4 x 4 is 16.
PLS HELPP
Find the surface area.
Answer:
To find the area of the rectangle, just multiply the two edges together. Area (bottom edge) = length times width = lw.
Step-by-step explanation:
l=12in
w=5in
h=3in
Area(all)=lw+lw+wh+wh+lh+lh
Area(all)=12×5+12×5+5×3+5×3+12×3+12×3
Area(all)=222 square inches
Pls help ! Find the value of x .
Answer:
101
Step-by-step explanation:
180-79=101
have a great day
Answer:
the value of x is 101 degrees
Please explain. will give brainliest
Answer:
[tex]parallelogram \: area = 9.5 \times 13 = 123.5[/tex]
Answer:
A. 123.5
Step-by-step explanation:
The formula for a parallelogram is A=bh
So, if you plug in both numbers you get
A=9.5*13
9.5*13 is 123.5
A is correct
I hope this helps!
What is volume of cube 3 2/3 all sides
3. Terry wants to buy 3 toys.
He can choose trucks or robots.
Complete the table to show three
different ways Terry can choose
the 3 toys.
Answer:
Robot truck robot
truck robot truck
robot robot robot
truck truck truck
Step-by-step explanation:
pls i will give 50 points
Answer:
y = |x - 1| - 1Step-by-step explanation:
This is a translation of the absolute value function:
y = |x| is translated down 1 unit and right by 1 unit:The function is:
y = |x - 1| - 1Joe wants to place plants around each of four sides of a square yard. If he’s planned for each of the four sides to show six plants (including corner plants), how many plants will he need?
Answer:
21
Step-by-step explanation:
1 side = 6 plants (including one in the corner)
3 sides = 5 plants each
6+15 = 21
38%
Find the whole number that satisfies all of the following conditions.
• It is a whole number between 1 and 100 inclusive.
• 10% of the number is greater than 1 but less than 7.
of the number is a square number.
• The number is not a multiple of 6.
.
1/3
공
[3]
Note: Make your final answer clear by writing 'The number is ...'
(the question is formatted a bit weird, but I'm assuming the third statement is meant to be '1/3 of the number is a square number'. If not, let me know and I'll adjust my answer accordingly)
Answer:
The number is 27
Step-by-step explanation:
Let the number be called x.
10% of x is greater than 1 but less than 7. Written mathematically, this is 1<0.1x<7. Multiply this by ten to get 10<x<70.
1/3 of x is a square number. The squares 4, 9, and 16 are the only squares that satisfy this statement, because the if the square was 1, x would be 1, which doesn't fit x>10, and if the square was 25 or higher, x would be greater than 70, which doesn't fit x<70.
x isn't a multiple of six. If the square is 4, x is 12, which is a multiple of six so this doesn't work. If the square is 16, x is 48, which is a multiple of six too, so this doesn't work. But if the square is 9, x is 27, which isn't a multiple of six and satisfies the statement.
Double check that x=27 is a valid answer.
Is 27 a whole number between 1 and 100? Yes
Is 10% of 27 greater than 1 and less than 7? Yes (10% of 27 is 2.7)
Is 1/3 of 27 a square number? Yes (1/3 of 27 is 9, which is the square of 3)
Is 27 not a multiple of 6? Yes (27 isn't divided evenly by 6)
Therefore, the number is 27.
Please help?
(I learned this way back so I kinda forgot)
Answer:Question
Please help?
(I learned this way back so I kind forgot)
1 Which model represents 2(-3)
figure c represents 2(-3)
Answer:
1 Which model represents 2(-3)
figure c represents 2(-3)
Step-by-step explanation:
connie poured 200 milliliters of juice into a glass from a juice carton. She then poured 225 milliliters into a second glass. What is the final change in the volume of the carton?
Answer:
425 ml
Step-by-step explanation:
200+225= 425 ml
Which one is correct?
The radius of the planet Saturn is 945% of the radius of Earth. What is 945% expressed as a fraction and as a decimal?
PLZ HELP
(don't send link and there no photo)
Answer:
Decimal: 9.45 Fraction: 236.35/25
Step-by-step explanation:
sorry if the fraction one is wrong.
Show your full solution
1. How much larger is the pizza in a circular pan with a 14-inch diameter than a pizza made in square pan with sides measuring 14 inches?
2. A photograph measuring 10 cm by 4 cm is mounted on a rectangular cardboard, to leaving a margin of 3 cm all around. What is the area of a photograph?
Answer:
1.the square pan is larger by 12 inches
40 cm^2
Step-by-step explanation:
The difference in size can be determined by calculating the difference between the perimeter of the square pan and the circumference of a circle
perimeter of a square = 4 x length
14 x 4 = 56 inches
Circumference of a circle = πD = (22/7) x 14 = 44 inches
Difference in size = 56 - 44 = 12 inches
Area of a rectangle = length x width
10 x 4 - 40 cm^2
Use the graph at the right. Find the vertices of the image of QRTW for a dilation with center (0,0) and a scale factor of 12.
Answer:
you need to insert the graph's picture lol
Step-by-step explanation:
The marketing manager of a tourist company wants to be able to predict the number of calls to a toll free number asking for pamphlets, maps and other tourist related information based upon the number of advertisements placed the previous week, the number of calls received the previous week, and the number of airline tour bookings for the current week.
What statistical technique is describe above?
Answer:
multiple regression
Step-by-step explanation:
In the field of statistics, the multiple regression is the statistical technique which uses the various explanatory variables for predicting the outcome of the response variable. It is the extension of the simple linear regression. It explains the relation between the multiple predictor variables or independent variables and one dependent variable or criterion variable.
In the context, the manager of a tourist company predicting the number of calls to the toll free number is using the statistical technique of multiple regression.
4. How many inches long is the hammer?
0_1
2
3
4
5
6
Maggie wants to pack 20 cookies equally in boxes each box holds 5 cookies how many boxes does she need
Answer:
4 boxes
Step-by-step explanation:
20/5 is 4 therefore 4 boxes with 5 in each
Answer:
20/5 = 4
Step-by-step explanation:
She needs 4 boxes
PLZ ANSWER I WILL MARK BRAINLIEST
Step-by-step explanation:
There is a difference between the numbers that is 6
So...
y=6x+5
Answer:
6x+5
Step-by-step explanation:
1 x 6=6+5=11
. The table shows the dimensions of four boxes. Which is the order of the volumes of the boxes from least to greatest?
Answer:
D
Step-by-step explanation:
multiply tge length × width x height fir each and the least to greatest is D
what is the slope of the line.
Answer:
1 ..................or 1/1
Answer:
-1 is the slope
..................
Help me I wanna get this over with
Answer:
D
Step-by-step explanation:
Area is L×W
Perimeter is L+L+W+W
If the die is rolled 100 times, predict the number times it would land on an
even number. *
Answer:
50
Step-by-step explanation:
there are 6 numbers on a dice 3 even 3 odd you would have a 50 chance of getting even
You toss a coin 15 times. P( heads) 2/5=
The perimeter of a triangle is 29. One side of a triangle is 5 less than twice the side of the shortest length. The third side is 6 more than the shortest side. What are the lengths of the triangle?
Answer:
7, 9, 13Step-by-step explanation:
Let the sides of the triangle be a, b and c.
We have:
P = a + b + c = 29a = 2b - 5c = b + 6Substitute values and solve for b:
2b - 5 + b + b + 6 = 294b + 1 = 294b = 28b = 7Find a and c:
a = 2*7 - 5 = 14 - 5 = 9c = 7 + 6 = 13The sides are: 7, 9, 13
Each triangle in the net has a base length that measures 6 inches and a height that measures 4 inches. What is the surface area of the pyramid that can be formed from this net? 12 inches squared 24 inches squared 36 inches squared 48 inches square
Answer:
Surface area of triangular pyramid = 48 inch²
Step-by-step explanation:
Given:
Base length of triangle = 6 inches
Height of triangle = 4 inches
Find:
Surface area of triangular pyramid
Computation:
Surface area of triangular pyramid = 4 x [Surface area of triangle]
Surface area of triangular pyramid = 4 x [(1/2)(b)(h)
Surface area of triangular pyramid = 4 x [(1/2)(6)(4)
Surface area of triangular pyramid = 4 x [(1/2)(24)]
Surface area of triangular pyramid = 4 x 12
Surface area of triangular pyramid = 48 inch²