Mathematics High School

answer this guys.....​

Answer This Guys.....

Answers

Answer 1

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 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

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

A. EF=7
Because it would be the hypotenuse

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

5p+2=-43

I need help so bad please help

Answers

p = -9.

apologies if this is wrong.

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.

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

7h + 2t = 46

When t = 3 and h = 5

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

Step 2: 10y - 4 = 12 + 6y

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

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Answers

Answer:

Y=8x-32

Step-by-step explanation:

Point Form:

(4,0)

Equation Form:

x=4, y=0

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

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:

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 do you find the height of a cylinder when given the surface area and the diameter?

Answers

Use the formula H= V/ pi r

Solve for x and show your work.
12 = -4(-6x - 3) HELP​

Answers

Answer:

12= (24x+12) 0=24x Hope this helps

Answer:

x=0

Step-by-step explanation:

6 x 2/3 x 2 1/2 = what plss help

Answers

Answer:

10

Step-by-step explanation:

Answer

10

Step-by-step explanation:

pls find me this too I would appriciate it:(​

Answers

1/12 is the answer I think

Workings attached above.

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.

Plz sum 1 help quickkkkk

Answers

Answer:

D

Step-by-step explanation:

VW = FG

hope this helps...

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

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.

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:

the answer is C!
good luck!

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:

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

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

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.

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 ✅

Write the function for the graph.

Answers

Answer:

the answer is B

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.

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