Help me please thanks
Given:
Triangle ABC and triangle DEF are similar triangles.
To find:
The proportion that can be used to find the length of segment DE.
Solution:
We know that the corresponding sides of similar triangles are proportional.
Triangle ABC and triangle DEF are similar triangles. So, their corresponding sides must be proportional.
[tex]\dfrac{AB}{DE}=\dfrac{BC}{EF}=\dfrac{AC}{DF}[/tex]
[tex]\dfrac{AB}{DE}=\dfrac{BC}{EF}[/tex]
[tex]\dfrac{4}{DE}=\dfrac{3}{9}[/tex]
[tex]\dfrac{4}{3}=\dfrac{DE}{9}[/tex]
Therefore, the correct option is A.
The gym teacher uses 3/5of his kickballs in class. Half of the remaining balls are given to students for recess. What fraction of all the kickballs is given to students for recess?
Someone please help me out
Answer:
Im not so sure but I think the "b" point there is a right angle.
Step-by-step explanation:
I Hope that answered your question, If it did, please but me a brainliest because, that would be my first ever one!
Thank you!
-Brainly User
Apples cost $1.99 per pound. How much do 314 pounds of apples cost? $ How much do x pounds of apples cost? $ Clare spent $5.17 on apples. How many pounds of apples did Clare buy? pounds
Answer:
1. $624.86
2. 1.99x
3. 2.6 pounds
Step-by-step explanation:
1. Multiply 1.99 by 314 to get 624.86
2. With the equation 1.99x, you can substitute any variable into it and it will hold true.
3. Divide 5.17 by 1.99, the price, and you get 2.597 pounds, which rounds to 2.6
which figure is described below the locus of points in a plane equidistant between x=4 and x=6
A. 2 lines B. 2 planes C. 1 line D. 1 Plane
Answer:
The picture is black
Step-by-step explanation:
Dbddndnddnskskskssndjd
The lengths of a triangle are given below. Is the the triangle obtuse, acute, or right?
16, 12, 29
Answer:
The answer to this question should be acute
A math test is worth 100 points and has 30 problems.
Each problem is worth either 3 points or 4 points.
How many 4-point problems are there?
How do i change this into an algebraic expression
Answer:
I think 15
Step-by-step explanation:
15+15=30, so both 3 or 4 point questions have 15 problems each, hope this helped
4(x + 7)^2 – 49 = -13 solve the following quadratic equation for all values of x in the simplest form
Answer:
4(x²+14x+49)-49+13=0
4x²+56x+196-49+13=0
4x²+56x+160=0
D=3136-2560=576
x1=-56+24/8=-4
x2=-56-24/16=-10
An electrician charges $75 for a house visit $50 an hour for service. What is the independent variable and what is the dependent variable
Answer:
See the explanation below
Step-by-step explanation:
The independent variable is the time of the visit
The dependent variable is the total service charge, this depends on the amount of time spent working in the house
Miriarn's parents deposited $1000 in a savings account as a college fund when
she was born. How much money will Miriam have in this account after 18 years at
a yearly simple interest of 3.5%?
Answer:
$1630
Step-by-step explanation:
the interest one year
=$1000×3.5%
=$1000×3.5/100
=$35
the money that Miriam have after 18 years
=$1000+18($35)
=$1000+$630
=$1630
Help please emergency!!!
Brainiest
Find the slope and the y-intercept of the graph of y-1= 3x + 8.4.
The slope is
The y-
intercept is
I need this question nowwwww
PLZ HELP ME GUYS PLZ
Answer:
y=2x+3
x=(-1)
y=-5x+6
x=1
Step-by-step explanation:
Just find x in the equation
the question is in the image please help
Answer:
32 oz for $3.00
Step-by-step explanation:
1.25/12 = 0.10416666
1.65/16 = 0.103125
3/20 = 0.15
3/32 = 0.09375
Make A the subject of the formula r=√А/3
Answer:a = 9 r^2
Step-by-step explanation:
We need to make a subject of the formula given r = square root a / 3
Given r = √a / 3 -------------1
Now we can find a.
Squaring the given equation 1 we get
So r^2 = (√a / 3)^2
So r^2 = a / 9
The base of an isosceles triangle is 18 meters and its height is 40 meters. Find the
length of one of the legs of the isosceles triangle.
Answer:
What do u mean by legs please can you explain it further
Mark all of the transformations that will result in the object changing size.
A Dilation of a scale factor of 0.25
B Rotation of 180 degrees.
C Reection over the x-axis.
D Dilation of a scale factor of 3.
E Translation of 5 to the right and 3 up.
HELP PLEASE! WILL NE MUCH APPRECIATED❤
Paige started to make a rectangular prism using centimeter cubes, as shown below. When Paige completes the prism, the volume will be 60 cubic centimeters. What will be the height, in centimeters, of Paige's completed rectangular prism?
Answer:
The volume is 12.
Step-by-step explanation:
If you multiply l x w x h
4 x 3 x 1 = 12
l x w x h
Answer:
my guess is 5 cm
Step-by-step explanation:
im not really good at math but i think its 5 cm because 60 divided by 12 is 5
hope i helped some people :D
graph the line y=-1/4x-4
Answer:
Step-by-step explanation:
the temperature is 0 degrees the temperature decreases 1.5 each day what is the temperature 2 day from now
Answer:
temperature will remain 0° after 2 day
0.4 repeating as a fraction for a mixed number
Answer:
Step-by-step explanation:
1.Rewrite the decimal number as a fraction with 1 in the denominator
2.Multiply to remove 1 decimal places. Here, you multiply top and bottom by 101 = 10
3.Find the Greatest Common Factor (GCF) of 4 and 10, if it exists, and reduce the fraction by dividing both numerator and denominator by GCF = 2,
so the answer is
0.4= 2/5
Eric was rock climbing. At one point, he stopped and climbed straight down 2 1/2 meters. Then he climbed straight up 6 3/4 meters. Eric was wondering what his change in elevation was after these two moves.Which of the following equations matches the situation above?
Choice a: 2 1/2-6 3/4=?
Choice b: -2 1/2+6 3/4=?
Choice c: none of the above
NEED NOW
Answer:
Choice b
Step-by-step explanation:
He starts by going down, so that is descending, and would be a negative number. Then he is climbing, so that’s a positive number.
7.4g of sugar is needed for every cake made. How much sugar is needed for 7 cakes?
Answer:
Sugar for 1 cake = 7.4 g
Sugar for 7 cakes = 7.4 × 7 = 51.8 g.
I need help I hate math whoever helps thx and nobody put a scam link that’s annoying I’m not falling for it.
Answer:
y≤46
it's the third one. hope it helps
Find the area of quarter circle with the radius of 10
Answer: 78.5
Step-by-step explanation:
Formula: A=pi*r^2 or Area = 3.14*radius squared (by two)
A = 3.14*10^2
A = 3.14*100
A = 314
Divide it by 4, because it's a quarter of the circle: A = 314/4
A = 78.5
Answer: 78.5
Your welcome :)
If x = 15 units and h = 6 units, then what is the area of the triangle shown above?
Answer:
45
This is your answer.
HELP!!!!! Correct only!
Answer:811.5
Step-by-step explanation:
Answer:
Step-by-step explanation:
(7.5ftx9ftx12ft)+[5(9ftx12ft)+2(1/2x5x√(4.5^2+1.5^2)ft)]
=810ft+[540ft+2(1/2x5x6.75)ft]
=810ft+(540ft+33.75ft)
=1383.75ft
(sorry I'm not too sure if it is correct )
To three decimal places, find the value of the first positive x-intercept for the function f(x) = -2cos(x + 1). (6 points)
0.571
1.571
-1.081
-2.571
PLEASE HELP URGENT I AM TAKING IT NOW
I'm not 100% sure about this because this unit confused me but...
if you put it in your graphing calculator or in desmos, you can see that the first positive x -intercept (which is a point that is on the x-axis) is somewhere around one but it's not 1.571!! (other person is wrong!)
that point is (0.571, 0) so it's the first option
Two blocks of wood are shaped as a right rectangular prism the smaller block has a length of 9 cm a width of 3 cm and a height of 7 cm the dimensions of the larger block are double the dimensions of the smaller block what is the volume of the larger block of wood
Answer:
1512 cm^3
Step-by-step explanation:
the small ones dimentions are 9 by 3 by 7
if you double that then it is 18 by 6 by 14
to figure out the volume you have to multiply all the numbers together
and you get 1512 cm^3
A circular flower bed is 23 m in diameter and has a circular sidewalk around it that is 4 m wide. Find the area of the sidewalk in square meters. Use 3.14 for π.
Answer: 244.92 m
Step-by-step explanation:
The area of a circle is pir^2. First you will need to find the area of the concrete and subtract the area of the flower bed from that amount. The concrete is 3 feet wide so you will add that to 11.5 (half of the flower bed diameter) to find the radius. 14.5^2 pi is the entirety of the area. Then subtract 11.5^2 pi for the area of the concrete.