Answers
9514 1404 393
Answer:
(b) 25 cm²
Step-by-step explanation:
The ratio of areas is the square of the ratio of linear dimensions.
ar(ΔABC)/ar(ΔDEF) = (AB/DE)² = (1/2)² = 1/4
Then ...
ar(ΔABC) = (1/4)(100 cm²) = 25 cm² . . . . . multiply by ar(ΔDEF)
The area of ΔABC is 25 cm².
Related Questions
A rectangle is 2 √7 feet wide and 3 √7 feet long. What is the area, in square feet, of
the rectangle?
Answers
Answer:
[tex]42ft^{2}[/tex]
Step-by-step explanation:
[tex]2\sqrt{7}[/tex] × [tex]3\sqrt{7}[/tex]
Multiply the numbers outside the root and inside the root.
[tex]2x3=6[/tex] [tex]7x7=49[/tex]
[tex]6\sqrt{49}[/tex]
Simplify whats under the root
[tex]\sqrt{49} = 7[/tex]
[tex]6[/tex]×[tex]7=42[/tex]
HelP I have to turn this in tomorrow!!!
Answers
Answer:
$7.22 per foot squared
Step-by-step explanation:
hope this helps
Answer:
$7.22/ft² (Verified Answer) ✅Step-by-step explanation:
We need the unit rate here. The best way to do this is to write a proportion.
Let x = the $ for 1 ft.
130/18 = x/1
130 = 18x
Divide by 18
x = $7.22
Now, we check to make sure we are correct.
130/18 = 7.22/1
130 = 130 ✅
Linear Equation, Need Solved Asap <3
Answers
Step-by-step explanation:
y = 5x - 4
When x = 0, y = 5(0) - 4 = -4.
When x = 1, y = 5(1) - 4 = 1.
When x = 2, y = 5(2) - 4 = 6.
The 3 ordered pairs we have are (0,-4), (1,1) and (2,6).
We now check the point (-5,-29):
(-29) : 5(-5) - 4
-29 : -25 - 4
-29 : -29 => -29 = -29.
Since Left hand side = Right hand side, the point (-5,-29) is a solution.
Answer:
1. (1,1) (2,6) (3, 11)
2. Yes
Step-by-step explanation:
1. 5(1)-4 = 5-4 = 1
5(2)-4 = 10-4 = 6
5(3)-4 = 15-4 = 11
(I just chose 3 simple x values and plugged them into the equation to get the y values then wrote it as an ordered pair)
2. 5(-5)-4 = -25-4 = -29
-29 = -29
(Same as number 1 but I used the given x value then I checked if the y value I got matched the ordered pair)
Which expression is equivalent to V8x7y8 ?
Answers
Answer:
the third one
Step-by-step explanation:
good luck!
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
Answers
Answer:
Y=8x-32
Step-by-step explanation:
Point Form:
(4,0)
Equation Form:
x=4, y=0
If f(x) = 2^{5x}-3f(x)=2
5x
−3, what is the value of f(2)f(2)
Answers
Answer:
what does "^" mean in this equation?
Step-by-step explanation:
how do you find the height of a cylinder when given the surface area and the diameter?
Answers
Eva say it's $60 each week since she needs to save at least $2400 to go on a trip to Europe she will need to say 40 weeks
Answers
Answer:
The answer would be true.
Step-by-step explanation:
60*40=2400
Answer:
She will need to save for 40 weeks
Step-by-step explanation:
Find an ordered pair (x, y) that is a solution to the equation.
5x - y = 8
Answers
(2,2) could be a solution. :)
(0,-8) could be another.
In order to convert 3.6 meters into yards, Evin used the following product:
Answers
Answer:
2
Step-by-step explanation:
Number 2 was written wrong because it should have been 1 inch / 2.54 centimeters, not the other way around.
This is because the units of the number on the top of the previous one (in this case, centimeters) has to be the same as the units on the bottom of the fraction. This means that if you have cm on top of one, the next one has to have cm on the bottom of the fraction.
How many times do 8 go into 5
Answers
it goes into five 0 times
Answer:
0 Times
Step-by-step explanation:
The answer is 0 times!
This is due to the concept in which 8 is a bigger number than 5.
The net of a right rectangular prism is shown below. The measurements are given to the nearest tenth of a centimeter. What is the surface area of the prism?
Answers
Answer: c. 352.50 cm²
Step-by-step explanation:
Looking at the shape one can see that it is made up of 3 rectangles and 2 triangles.
The surface area will therefore be the sum of the areas of these 5 shapes.
Rectangle area = Length * width
= 7.5 * 13.5
= 101.25 cm²
There are 3 of them:
= 101.25 * 3
= 303.75 cm²
Triangles = 1/2 * base * height
= 1/2 * 7.5 * 6.5
= 24.375 cm ²
There are two of them:
= 24.375 * 2
= 48.75cm²
In total:
= 303.75 + 48.75
= 352.50 cm²
BRAIN TWISTER/6TH GRADE MATH
Create (1) mathematical problem or mathematical sentence where the answer is "46". For the variables, use t = 3 and h= 5 or t and h for equations.
Answers
When t = 3 and h = 5
1. Identify the parallel lines.
2. Identify the transversal.
3. How many angles are formed by the transversal?
4. Which of the angles are congruent?
5. If ∠5 is 110°, what is the measure of ∠1?
Answers
Answer:
1. The parallel lines are m and n
2. The transversal is line t.
3. 8 angles are formed by the transversal.
4. Angles 7 and 5, 1 and 3, 2 and 4, 6 and 8, 6 and 2, 7 and 3, 1 and 5, 4 and 8, 3 and 5, 2 and 8, 4 and 6, and 1 and 7.
5. If m<5 is 110°, then m<1 is also 110°
Hope this helps
Let the cost of a pen be dollars. Write an expression for the total cost of four pens and seven mechanical pencils in terms of .
Answers
Answer:
4x +7 = ?
Step-by-step explanation:
It was easy except you need more info to solve the equation
find the geometric mean of the numbers:
2 and 8
10 and 12
Answers
Answer:
2 and 8: negative and positive 4
10 and 12, sqrt 120, which simplifies to 2 sqrt 30
Step-by-step explanation:
apparently geometric mean... is taking the product... and square rooting it? okay
h=(500-260)divided by 2
Answers
Answer:
h = 120
Step-by-step explanation:
The required, division of h=(500-260)divided by 2 is 120..
The division is a mathematical operation that involves distributing or sharing a quantity into equal parts. It is the inverse operation of multiplication. In division, a dividend is divided by a divisor to obtain a quotient.
h = (500 - 260) divided by 2
To solve this expression, we first perform the subtraction within the parentheses:
h = (240) / 2
Simplifying further:
h = 120
Therefore, the value of h is 120.
Learn more about division here:
https://brainly.com/question/9934431
#SPJ6
pls find me this too I would appriciate it:(
Answers
Workings attached above.
PLEASE HELP ILL GIVE U BRAINLEST PLUS 50 POINTS IF U GET IT RIGHT
Answers
Answer:
3x^2-10x+1
I would explain it but i think you need the answer quick so.
5p+2=-43
I need help so bad please help
Answers
apologies if this is wrong.
A fisherman can row upstream at 2mph and downstream at 8mph. He started rowing upstream till he got tired and the rowed downstream to his starting point. How far did the fisherman row if the entire trip took 2 hours
Answers
Answer:
The fisherman row 6.4 miles total.
Step-by-step explanation:
Let the distance from his starting point to the point he turn around is "d" miles.
Given upstream speed is 2 mph and downstream speed is 8 mph.
We now that time = distance /speed
So the time required to row "d "miles upstream = d/2 hours
The time required to row "d" miles downstream = d/8 hours.
As the entire trip took 2 hours so the equation will be :
d/2 +d/8 = 2
( 4d + d ) /8 = 2
5d = 16
d = 16/ 5 = 3.2 miles
So the fisherman rowed a total of ( 3.2 x 2 ) miles = 6.4 miles.
PLEASE HELP!
On a piece of paper, use a protractor to construct
right triangle DEF with DE = 4 in., m∠D = 90°, and m∠E = 45°.
What statement is true about the triangle?
A. EF = 7 in.
B. DF = 4 in.
C. DF = 2 in.
D. EF = 4 in.
Answers
Because it would be the hypotenuse
Please help me, I'll give brainliest ♥♥
Answers
in the rigid class structure of the colonies, native-born Spaniards who held all the important positions in government were known as peninsulares. Those of Spanish descent born in the colonies were called creoles. Poor colonists of mixed race, Spanish and Indian, were called mestizos. At the bottom of the social structure were the indians/native peoples, who were poor and did most of the work.
Could you please Help Me?
The work of a student to solve the equation
2(5y − 2) = 12 + 6y is shown below:
Step 1: 2(5y − 2) = 12 + 6y
Step 2: 7y − 4 = 12 + 6y
Step 3: y − 4 = 10
Step 4: y = 14
Step 5: y = 7
In which step did the student first make an error and what is the correct step? Step 2: 7y − 4 = 6 + 3y
Step 2: 10y − 4 = 12 + 6y
Step 3: 5y − 2 = 2(10 + 3y)
Step 3: 2(5y − 2) = 10 + 3y
Answers
Write the function for the graph.
Answers
Answer:
the answer is B
Step-by-step explanation:
Solve for x and show your work.
12 = -4(-6x - 3) HELP
Answers
Answer:
12= (24x+12) 0=24x Hope this helpsAnswer:
x=0
Step-by-step explanation:
A line passes through the point (6,-1) and is perpendicular to the line with equation - 2x + 3y = -6.
Which is the equation of the line?
Answers
Answer: y = − 3/2 x + 8
Step-by-step explanation:
Find the Perpendicular Line
Solve −2x + 3y = −6.
y = −2 + 2x/3
Find the slope when y = −2 + 2x/3 .
m = 2/3
The equation of a perpendicular line must have a slope that is the negative reciprocal of the original slope.
[tex]m[/tex] perpendicular = [tex]-\frac{1}{\frac{2}{3} }[/tex]
Simplify to find the slope of the perpendicular line.
perpendicular = −3/2
Find the equation of the perpendicular line using the point-slope formula.
y + 1 = − 3/2
⋅ (x − 6)
Write in y = mx + b form.
y = − 3/2 x + 8
6 x 2/3 x 2 1/2 = what plss help
Answers
Answer:
10
Step-by-step explanation:
Answer
10
Step-by-step explanation:
Plz sum 1 help quickkkkk
Answers
Answer:
D
Step-by-step explanation:
VW = FG
hope this helps...
PLZ I NEED HELP so im just write this bc i need more than 20 letters so <3
Answers
Answer:
The area is 24 (In)
Step-by-step explanation:
A=h^b x b/ 2
Hope this helps ^^
~PurpleMist