MATHEMATICS MIDDLE SCHOOL

if two solids below are similar and the ratio between the lengths of their edges is 4 7 what is the ratio of their surface areas

Answers

Answer 1

Answer:

Answer:

Answer: 16/49

Step-by-step explanation:

(4/7)^2 = 16/49

Answer 2

Answer:

Answer: 16:49

Step-by-step explanation: took quiz

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What is 0.04 10 times as much as what

Answers

it would 0.4 because your getting rid of one decimal point by adding 10

0.4 would be the answer

If a right triangle has legs with the lengths of 10 in and 4 in, what is thelength of the hypotenuse?*

A. 114
B. 26
C. 5.1
D. 10.8

Answers

It’s 11.8 I think but that’s not an answe

Answer:

D. 10.8

Step-by-step explanation:

a^2 + b^2= c^2

a and b are legs and c is the hypotenuse

10^2 + 4^2= c^2

100+16= 116

Find the square root of 116= 10.77 round to 10.8

Which of these graphs represents the graph of line y = -x + 1?

Answers

Answer:

See attached picture.

Step-by-step explanation:

To graph the equation, use the slope intercept form of the line to identify the slope and y-intercept.

y = -x + 1 y = mx+b

m=-1 and b=1

This means start at 1 on the y-axis and plot a point. From this point (0,1), move down 1 unit and to the right 1 unit. Plot this point (0,1). Connect the two points.

Please help me solve

Answers

if the area of a rectangle is width time length, then we have all of the info we need.

the width is 6 less than 3 times the length. let the length be x and put your words into math! 6 less is -6. 3 times a number is 3x, so width=3x-6.

so we have area=l×w which becomes x×(3x-6)=105

solve
$x(3x - 6) = 105 \n 3 {x}^(2) - 6x = 105 \n 3( {x}^(2) - 2x) = 105 \n (1)/(3) * 3( {x }^(2) - 2x) = 105 * (1)/(3) \n {x}^(2) - 2x = 35 \n {x}^(2) - 2x - 35 = 0$
factor and solve!

you will get one positive and one negative. pick the positive since lengths cannot be negative

Hi really need 1, 2 and 3!!!!! Thank you all in advance! Again just ONE, TWO, and THREE thanks!