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krok68 [10]
2 years ago
5

Solve 0 = -1.8y + 0.72. What is y = to? 1.0.4 2.-0.4 3.0.8 4.1.8

Mathematics
2 answers:
PIT_PIT [208]2 years ago
4 0

Answer:

0.4

Step-by-step explanation:

just solve it like an equation.

Mekhanik [1.2K]2 years ago
4 0
1) 0.4 (divide -1.8y by 0.72)
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What is the graph of x^2/9-y^2/4=1
adell [148]

Answer:

A is the answer.

3 0
2 years ago
Elijah gets paid $15.50 per hour in addition to a weekly salary of $50. This week he wants to earn more than $400. How many hour
8090 [49]
H=number of hours
m=total salary
m=15.50h+50
put 400 in for m
400=15.50h+50
now solve for h
400=15.50h+50
-50. -50
350=15.50h
Divide 350 by 15.50to get your final answer
you get a long decimal so I rounded it.
22.6 hours
4 0
3 years ago
What’s the answer?and how do you get it
Kay [80]

the solid is made up of 2 regular octagons, 8 sides, joined up by 8 rectangles, one on each side towards the other octagonal face.

from the figure, we can see that the apothem is 5 for the octagons, and since each side is 3 cm long, the perimeter of one octagon is 3*8 = 24.

the standing up sides are simply rectangles of 8x3.

if we can just get the area of all those ten figures, and sum them up, that'd be the area of the solid.

\bf \textit{area of a regular polygon}\\\\ A=\cfrac{1}{2}ap~~ \begin{cases} a=apothem\\ p=perimeter\\[-0.5em] \hrulefill\\ a=5\\ p=24 \end{cases}\implies A=\cfrac{1}{2}(5)(24)\implies \stackrel{\textit{just for one octagon}}{A=60} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \stackrel{\textit{two octagon's area}}{2(60)}~~+~~\stackrel{\textit{eight rectangle's area}}{8(3\cdot 8)}\implies 120+192\implies 312

7 0
3 years ago
The square ABCD is divided into eight equal parts. The shaded area is 25 cm². What is the area of the square ABCD​
Akimi4 [234]

Answer:

I think the answer is 200cm^2

Step-by-step explanation:

since the square is divided into eight equal parts

and one shaded part is =25cm^2

multiply the area of the shaded part by the number of equal parts

= 25cm^2 ×8

= 200cm^2

6 0
3 years ago
Which one is correct? Please hurry <3
Levart [38]
First one (20 characters) hope this helped
4 0
3 years ago
Read 2 more answers
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