3 years ago

(-9z - 8) - (4z - 7)

Mathematics

1 answer:

inn [45]3 years ago

7 0

The answer is -13z - 1

You might be interested in

The graph of the function y = x^2 - x -2

svp [43]

I hope this graph helps

8 0

3 years ago

Which decimal is greater 0.03 or 0.205?

34kurt

0.205 is greater than 0.03

5 0

4 years ago

Read 2 more answers

Find the area of triangle ABC with vertices A(2,1), B (12,2), C (12,8). Hence, or otherwise find the perpendicular distance from

Lapatulllka [165]

<h2>The area of a triangle is =54 square units</h2><h2>The perpendicular distance from B to AC is = $\frac{108}{\sqrt{149} } units$ </h2>

Step-by-step explanation:

Given a triangle ABC with vertices A(2,1),B(12,2) and C(12,8)

$x_1=2,y_1=1,x_2=12,y_2=2,x_3=12 and y_3=8$

The area of a triangle is= $\frac{1}{2} [x_1(y_2-y_3) +x_2 (y_3- y_1)+x_3(y_1-y_2)]$

= $|\frac{1}{2} [2(2-8+12(8-1)+12(1-2)]|$

= $|-54|$ = 54 square units

The length of AC = $\sqrt{(x_1-x_3)^{2} +(y_1-y_3)^2}$

= $\sqrt{(2-12)^{2} +(1-8)^2}$

= $\sqrt{149}$ units

Let the perpendicular distance from B to AC be = x

According To Problem

$\frac{1}{2} \times x \times \sqrt{149} = 54$

⇔ $x =\frac{108}{\sqrt{149} }$ units

Therefore the perpendicular distance from B to AC is = $\frac{108}{\sqrt{149} } units$

5 0

3 years ago

In 2013, the population of the state of New York was approximately 19.65 million, and the population of New York City was 8,406,

bonufazy [111]

Approx. 11.244 million people

6 0

3 years ago

Read 2 more answers

Fint the roots for h(x) = (2x + 3) (x - 7)

prohojiy [21]

Answer:

Step-by-step explanation:

7 0

3 years ago