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3 years ago

Which is the length of a student's textbook?

Mathematics

2 answers:

Volgvan3 years ago

5 0

The answer is 30 centimetres

BabaBlast [244]3 years ago

5 0

30 centimeters

Hope it helps you

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What is the relationship between 0.8 ÷ 10^2 and 0.8×10^2

AleksandrR [38]

$0.8\times10^2\ \text{is 10,000 times greater than}\ 0.8\div10^2\\\\\dfrac{0.8\times10^2}{0.8\div10^2}=\dfrac{10^2}{1\div10^2}=\dfrac{10^2}{\frac{1}{10^2}}=10^2\times10^2=10^4=10,000$

5 0

3 years ago

#26 What are the solutions to the equation 4x2 - 52x + 169 = 121?

Sloan [31]

Answer:

D. {1, 12}

Step-by-step explanation:

4X^2-52x+169=121

The equation can be summarized thus:

4X^2-52x+169-121=0

4X^2-52x+48=0

divide the each number of the equation by 4

4X^2/4-52x/4+48/4=0

x^2-13x+12=0

we need to numbers that when we multiply them the result is 12 and -13 when we add together

-1 and -12(-1-12=-13 and -1*-12=12)

x^2-x-12x+12

x(x-1)-12(x-1)

(x-1)(x-12)

x-1=0 or x-12=0

x=1 or x=12

3 0

3 years ago

Which points are 4 units apart?

xz_007 [3.2K]

The points that are 4 units apart are B and D

<h3>Complete question</h3>

Which points are 4 units apart? On a coordinate plane, point A is at (-2, 4), point B is at (3, -6), point C is at (-1, 0), point D is at (3, -2).

B and C

C and D

A and C

B and D

<h3>How to determine the points?</h3>

To do this, we simply calculate the distance using the following equation

$d = \sqrt{(x_2-x_1)^2 + (y_2-y_1)^2$

Using the given points, we have:

$BC = \sqrt{(3+ 1)^2 + (-6 -0)^2} = 7.2$

$CD = \sqrt{(-1 - 3)^2 + (0 +2)^2} = 4.5$

$AC = \sqrt{(-2 + 1)^2 + (4 -0)^2} = 4.1$

$BD = \sqrt{(3 - 3)^2 + (-6 +2)^2} = 4$

Hence, the points that are 4 units apart are B and D

Read more about distance at:brainly.com/question/15821277

#SPJ1

3 0

2 years ago

Which pair of equations represents parallel lines?

suter [353]

Answer:

A) parallel

B) not

C) not

D) parallel

7 0

3 years ago

Read 2 more answers

4^4÷4^7 as a fraction

elena-s [515]

Answer: multiply it by the bisector of the photosynthesis.

obviously

Step-by-step explanation:

3 0

3 years ago