i dont know how to do this??
Answer:
21 m²
Step-by-step explanation:
Area of a trapezoid is given by the formula:
A = (a+b)/2×h
(where h is the vertcial height, and a and b are the parallel lines)
Substituting values given gives us:
A = (5+9)/2×3
A = 14/2×3
A = 7×3
A = 21
Units will be m² as this is area.
Answer:
21
Step-by-step explanation:
the formula is:
[(base1+base2)/2]*height
[(9+5)/2]*3
21
HELP HELP I NEED HELP
Answer:
a. 1385.44 ft²
Step-by-step explanation:
Area of a circle
πr²Given
r = 21 ftSolving
22/7 x 21 x 2122 x 3 x 2166 x 211386 ft²Option A is the closest answerThe following triangle is an isosceles triangle. What is the length of the missing side?
Answer:
D.11 in
Step-by-step explanation:
isosceles triangles have two congruent sides
The missing side length is congruent with the longer side ( this is pretty obvious )
If the longer side has a length of 11in and the missing side is congruent to the longer side then the missing side length equals 11 in
The area of rectangle field is 12 3/5 m² if the length of the field is 6 2/3 m . Find its breadth
Answer:
[tex]1\frac{89}{100}[/tex] m
Step-by-step explanation:
The formula to find the area of a rectangle: [tex]l * b[/tex], where [tex]l[/tex] is the length and [tex]b[/tex] is the breadth.
1) Substitute the values into the formula.
[tex]12\frac{3}{5} = 6\frac{2}{3} * b[/tex]
2) Change it to an improper fraction and solve for [tex]b[/tex].
[tex]\frac{63}{5} = \frac{20}{3} * b[/tex]
[tex]\frac{3}{20}[/tex] * [tex]\frac{63}{5}[/tex] = [tex]b[/tex]
[tex]\frac{189}{100} = b[/tex]
3) Change it to a mixed fraction because the length is in a mixed fraction. To do it, do a long division.
= [tex]1\frac{89}{100}[/tex]
help with this question (100 points)
Answer:
y = [tex]\frac{\pi}{3}[/tex]
Step-by-step explanation:
using the addition formula for sine
sin(x + y) = sinxcosy + cosxsiny
then
sinxcosy + cosxsiny = [tex]\frac{1}{2}[/tex] sinx + [tex]\frac{\sqrt{3} }{2}[/tex] cosx
for the 2 sides to be equal , then
cosy = [tex]\frac{1}{2}[/tex] and siny = [tex]\frac{\sqrt{3} }{2}[/tex]
then
y = [tex]cos^{-1}[/tex] ([tex]\frac{1}{2}[/tex] ) = [tex]\frac{\pi }{3}[/tex]
and
y = [tex]sin^{-1}[/tex] ( [tex]\frac{\sqrt{3} }{2}[/tex] ) = [tex]\frac{\pi }{3}[/tex]
thus y = [tex]\frac{\pi }{3}[/tex]
[tex]\\ \rm\Rrightarrow sin(x+y)=\dfrac{1}{2}sinx+\dfrac{\sqrt{3}}{2}cosx[/tex]
[tex]\\ \rm\Rrightarrow sinxcosy+cosxsiny=\dfrac{1}{2}sinx+\dfrac{\sqrt{3}}{2}cosx[/tex]
Cancel sin and cos[tex]\\ \rm\Rrightarrow cosy+siny=\dfrac{1}{2}+\dfrac{\sqrt{3}}{2}[/tex]
[tex]\\ \rm\Rrightarrow cos\dfrac{\pi}{3}+sin\dfrac{\pi}{3}=\dfrac{1}{2}+\dfrac{\sqrt{3}}{2}[/tex]
y=π/3Option B
I need help it’s a major grade
Answer:
Look to explanation
Step-by-step explanation:
The question says the original mosaic is surrounded by a 3 inch by 5 inch frame. The length has 5 squares & the width has 3 squares, so that means each square is an inch long.
1. Perimeter is adding up how long all the sides are. So for the original you add 3 + 5 + 3 + 5 = 16 inches
2. Area is length x width, so we multiply 3 x 5 = 15 inches squared
3. Since each square is an inch, to find the length we add up all the squares & we get 10. Then we do the same for the width & get 6. To figure perimeter, we add up all the sides 10 + 6 + 10 + 6 = 32 inches
4. Area is length x width, so 10 x 6 = 60 inches squared
5. For the original we needed 16 inches of steel. For the larger one, we needed 32 inches. 32 inches is 2x bigger than 16.
6. For the original we had an area of 15 inches squared. For the larger one we had 60 inches squared. 60 is 4x bigger than 15.
Which system of equations is satisfied by the solution shown in the graph?
9
2 3 4 5 X
-5
-4
3
8
N
6
51
3.
Answer:
The two equations of each line is
y = x + 10 and y = -x + 5
I am unable to idenfity your option choices due to formating
Step-by-step explanation:
I've attached my work
Hope it helps, let me know if you have any questions/concerns !
Have a nice rest of your day :)
Find the measure of the missing angles.
с
105
b.
Answer:
b = c = 75°
Step-by-step explanation:
b and 105° are adjacent angles and sum to 180° , then
b + 105° = 180° ( subtract 105° from both sides )
b = 75°
b and c are vertically opposite angles and are congruent , so
c = b = 75°
is this a one-to-one function? yes or no
Answer:
YesStep-by-step explanation:
Each x-value corresponds to only a single y-value.
Here, the relation is : y = 5x
This relation is injective, meaning it is a one-to-one function.
Answer:
Yes
Step-by-step explanation:
Each value in the domain corresponds to exactly one value in the range.
81.
1. The yearbook has 87 pictures.
If there are 3 pictures on
each page, how many
pages are there?
Answer:
29
Step-by-step explanation:
87/3 is 29 its that easy
write the linear equation in slope intercept form: 5x + y= -17
x= -1/5y - 17/5
y= -5x - 17
y= -5x + 17
y= 5x - 17
Answer:
[tex]y = - 5x + 17[/tex]
Step-by-step explanation:
[tex]i n \: slope \: intercept \: form \: y = mx + c \\ for \: the \: \: liear \: equaton = 5x + y = 17 \\ y = - 5x + 17[/tex]
What's the equation of the line that passes through the points (–8,4) and (0,22)?
Answer:
C
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 8, 4 ) and (x₂, y₂ ) = (0, 22 )
m = [tex]\frac{22-4}{0-(-8)}[/tex] = [tex]\frac{18}{0+8}[/tex] = [tex]\frac{18}{8}[/tex] = [tex]\frac{9}{4}[/tex]
the line crosses the y- axis at (0, 22 ) ⇒ c = 22
y = [tex]\frac{9}{4}[/tex] x + 22 ← equation of line
What is the surface area of this right prism?
Enter your answer in the box.
cm²
Right triangular prism. The right triangle base has a horizontal leg labeled 4 centimeters and the vertical height of 3 centimeters. The other side is labeled 5 centimeters. The height of the prism is labeled 7 centimeters.
Answer:
117 cm²
Step-by-step explanation:
Right triangular prism: 5 surfaces
SA: 2 triangles + 3 rectangles
Triangles
A = bh/2
A = (4 · 3)/2 = 12/2
6 cm²
Rectangles
A = bh
A = 5 · 7
35 cm²
Total
SA: 2 triangles + 3 rectangles
SA: 2(6) + 3(35)
117 cm²
Hope this helps and God bless!
An element with mass 630 grams decays by 18.8% per minute. How much of the
element is remaining after 7 minutes, to the nearest 10th of a gram?
Answer:
-199.1
Step-by-step explanation:
18.8% × 7= 131.6%
630×131.6=82908 move the decimal two places to the left you get 829.08
630-829.08= -199.08 round to the nearest tenth you get -199.1
Find the product. Write your answer in scientific notation.
Answer:
5.6 x [tex]10^{4}[/tex]
Step-by-step explanation:
7 x 8 = 56
[tex]10^{-2}[/tex] x [tex]10^{5}[/tex] = [tex]10^{3}[/tex]
56 x [tex]10^{3}[/tex]
5.6 x [tex]10^{4}[/tex]
Answer:
The answer is
[tex]5.6 x 10^{4}[/tex]
The last one d 16 is d.people in the local area
14. People who buy a pair of shoes from the store
15 did not include those who visited the store, but did not buy a pair of shoes
16. every 5th buyer
Mike earned $28 on Monday. On
Wednesday, he earned some more money
He earned $42 total. How much did Mike
earn on Wednesday?
Answer:
14 dollars
The trick is to subtract the known value by the result of the subtraction problem to get the missing value as shown below;
[tex]42 - 28 = 14[/tex]
Answer:
Mike earned 14 dollars on Wednesday.
Step-by-step explanation:
You take the total($42) and subtract what he earned on monday($28), and you get $14, which is how much he earned on wednesday.
Hope this helps!
Which expression gives the volume of a sphere with radius 15?
WILL MARK BRAINLIEST IF CORRECT!!!
Answer:
D
Step-by-step explanation:
volume of a sphere is = to
v= 4/3pi(r^3)
what is area of the polygon
Answer:
Area = (number of sides × length of one side × apothem)/2, where the value of apothem can be calculated using the formula,
PLEASE HELP! I WILL GIVE BRAINILEST !!! what is the slope of the line ?
Answer:
1/2
Step-by-step explanation:
Find two easy-to work with points
-3,2 and -1,3
slope, m = (y1-y2 ) / ( x1-x2)
(2-3) / ( -3 - -1) = -1/(-2) = 1/2
( it does not matter which point you select as x1 ,y1 or x2, y2 )
Find the slope of the following equation. Simplify your answer.
5x + 2y = -10
m= -5/2
m= 5
m= 2
m= 2/5
Answer:
1st option
Step-by-step explanation:
theequation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
given
5x + 2y = - 10 ( subtract 5x from both sides )
2y = - 5x - 10 ( divide terms by 2 )
y = - [tex]\frac{5}{2}[/tex] x - 5 ← in slope- intercept form
with slope m = - [tex]\frac{5}{2}[/tex]
A circular serving tray has a diameter of 15 inches what is the area write your answer using pi show your work
Answer: 176.625
Step-by-step explanation: pie × r² = 3.14 × 7.5 × 7.5
I NEED HELP ASAP IM IN HIGHSCHOOL TAKING A TEST I DONT KNOW THIS I HAVE 24 MINUTES
Answer:
$21,389.79
Step-by-step explanation:
A saleswoman earns 30% commission on all the merchandise that she sells. Last month she sold $300 worth of merchandise. How much commission (in dollars) did she earn last month?
Answer:
$90
Step-by-step explanation:
To find commission, you multiply the amount made by the rate of which they can earn.
300*.3 (As this is a 30 percent commission)
Laurel wants to read at least 15 pages of her assigned reading for English tonight.
The inequality that can be used to represent the situation is x + 15 ≥ y
How to solve inequality?Let
y = total pages in her Englishx = number of pages Laurel has read at least means greater than or equal toThe inequality:
x + 15 ≥ y
This means, the number of pages read plus 15 pages read tonight is greater than or equal to the total number of pages in the textbook.
Learn more about inequality:
https://brainly.com/question/25275758
100PT AND BRAINLIEST! For the scatter plot below, analyze the plot in terms of correlation. Give evidence for your observations. // I've attached the scatter plot below. Please explain your answer fully - I learn better from a full explanation than a few words. Thanks so much in advance for any help you can give!
Answer:
There is a strong correlation with one outlier and this forms a pattern going up
Trust me I had trouble and my teacher showed me how to get it.
Answer:
There are 6 points and one outlier in this graph. Excluding the lowest and highest points, four dots are left to set up the trend line. Among these points, we can see the dots lowering when moving to the right side.
This means the trend line is negative.
For correlation, it is clear that the four dots are well organized in descending manner. Because of this, the graph will still have a high negative correlation even with the outlier(s). Therefore the plots in this graph have a strong negative correlation.
Can someone please help me? :(
Answer:
Area of the parallelogram is 96 m^2
Step-by-step explanation:
The formula of Area of parallelogram: Area = Base * Height
Area = Base * Height
Area = 12 m * 8 m = 96 m^2.
Answer:
96m squared
Step-by-step explanation:
BxH=Area of parallelogram
12x8=96
What is the slope of the line that passes through the points (4,1) and ( 0 , − 19 )? Write your answer in simplest form.
Answer:
Therefore, the slope is 5.Step-by-step explanation:
Use the slope formula.
SLOPE:
[tex]:\Longrightarrow \sf{\dfrac{y_2-y_1}{x_2-x_1} }[/tex]
y2=(-19)y1=1x2=0x1=4[tex]\sf{\dfrac{-19-1}{0-4}=\dfrac{-20}{-4}=\boxed{\sf{5}}[/tex]
The slope is 5.
I hope this helps. Let me know if you have any questions.
16. If a baseball player hits for an 324 batting average, what percent of the time does this player get a hit?
The average is written as 0.324
To change it to a percent multiply it by 100
0.324 x 100 = 32.4%
Answer: 32.4%
1. A woman deposits $10000 in a bank. The interest rate per annum is 8%. How much will she have in the account in 15 years to the nearest $?
Answer:
31,772
Step-by-step explanation:
10,000(1.08) = 10,800
Do this 14 more times, your answer times 1.08. You will end up with 31,721.6911418... round it and u will get $31,772