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3 years ago

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i have to get back to class in 12 mins plz help asapWhich problems result in a negative number? Choose all answers that are corr

ect. A. –3.5 – (–1.6) B. –4 + (–6.2) C. 8.4 – (–9) D. -1 1/2 + (-3 1/4)

2 answers:

Tatiana [17]3 years ago

8 0

The answers that result in negative numbers are: A, B, and D

Hope this helped

Artist 52 [7]3 years ago

3 0

A , B , and D all result in a negative number.

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If each of the following represents the slope of a line (or line segment), give the slope a line that is perpendicular to it. (a

Crank

Answer:

$m_2 = -\frac{3}{4}$ -- (a)

$m_2 = -\frac{7}{3}$ -- (b)

$m_2 = -\frac{1}{4}$ --- (c)

$m_2 = -3$ -- (d)

Step-by-step explanation:

Given

$a.\ m = \frac{4}{3}$

$b.\ m = \frac{3}{7}$

$c.\ m = 4$

$d.\ m = \frac{1}{3}$

Required

Determine the slope of a perpendicular line

In geometry, the condition for perpendicularity is:

$m_2 = -\frac{1}{m}$

This formula will be applied in solving these questions.

$a.\ m = \frac{4}{3}$

$m_2 = -\frac{1}{m}$

Substitute 4/3 for m

$m_2 = -\frac{1}{4/3}$

Express as a proper division

$m_2 = -1/ \frac{4}{3}$

Convert to *

$m_2 = -1* \frac{3}{4}$

$m_2 = -\frac{3}{4}$

$b.\ m = \frac{3}{7}$

$m_2 = -\frac{1}{m}$

Substitute 3/7 for m

$m_2 = -\frac{1}{3/7}$

Express as a proper division

$m_2 = -1/ \frac{3}{7}$

Convert to *

$m_2 = -1* \frac{7}{3}$

$m_2 = -\frac{7}{3}$

$c.\ m = 4$

$m_2 = -\frac{1}{m}$

Substitute 4 for m

$m_2 = -\frac{1}{4}$

$d.\ m = \frac{1}{3}$

$m_2 = -\frac{1}{m}$

Substitute 1/3 for m

$m_2 = -\frac{1}{1/3}$

Express as a proper division

$m_2 = -1/ \frac{1}{3}$

Convert to *

$m_2 = -1* \frac{3}{1}$

$m_2 = -\frac{3}{1}$

$m_2 = -3$

4 0

3 years ago

The book Kathy is reading is 540 pages long. So far, she has read 405 pages. What percent of the book does she have left to read

PIT_PIT [208]

The book is 540 pgs.....she has read 405....that leaves (540 - 405) = 135 pgs left to read.

135 / 540 = 0.25 = 25% <== what she has left to read

4 0

3 years ago

Read 2 more answers

Does anyone know how to do this I’m really confused

Levart [38]

<h3>Given:</h3>

Pentagon

<h3>To find:</h3>

The size of the unknown angle "x"

<h3>Solution:</h3>

The given polygon is a Pentagon so the sum of interior angle will be,

$\large\boxed{Formula: ( n − 2 ) × 180}$

n means the number of sides

Let's substitute the values according to the formula.

$(5-2)×180$

$=540°$

Now, we can find the sum of one interior angle.

$\large\boxed{\frac{sum \: of \: interior \: angles}{n}}$

n means the number of sides.

Let's substitute the values according to the formula.

$x=\frac{540}{5}$

$\large\boxed{x= 108°}$

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3 years ago

What is the ratio to 46 pull ups in two minutes

Ann [662]

Wouldn’t it be 46:2 and also 23:1?

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3 years ago

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What is the solution (ordered pair) for the following system of equations? 4x + 3y = 9 and 2x - y = 7?

Naddika [18.5K]

Solve for the first vaiable in one of the equation, then substitute the result into the other equation.

Point Form:

(3, -1)

Equation Form:

x = 3

y = -1

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3 years ago