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qaws [65]
3 years ago
8

BRAINLIEST!!PLEASE HELP!!

Mathematics
2 answers:
s2008m [1.1K]3 years ago
7 0
Your answer would be 360

450 times 40%= 180
450 minus 180= 270

450 plus 180= 630
630-270=360
ANEK [815]3 years ago
4 0
The price of the camera is after the 40% increase, would be $378.

Since the camera's original price was $450, and there was a 40 percent discount, you first find the discount of the original cost. Multiply $450 by 40% (0.4) to get $180. You then subtract $180 from $450 to get $270.
Now they added a 40% increase in price, but this increase is for the current cost $270. So, you multiply $270 by 40% (0.4) to get $108. Finally add $108 to $270. Thus getting $378 as a final answer.

I hope this helps!
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Help with #5 above!!!!!
Serggg [28]
<h3>Answer:  38.66 degrees</h3>

==========================================

Explanation:

As you stated in problem 4, tan(angle) = opposite/adjacent

We'll use this idea to help find angle Z. First lets set up the proper tangent ratio for this problem

tan(Z) = XY/YZ

tan(Z) = 8/10

tan(Z) = 0.8

To isolate Z, we need to undo the tangent function. We will use the inverse tangent or the arctangent function to do this.

tan(Z) = 0.8

arctan( tan(Z) ) = arctan(0.8)

Z = 38.6598 which is approximate

This rounds to 38.66

5 0
3 years ago
2.49 Encuentre los errores en cad uno de las siguientes aseveraciones: a) las probabilidades de que un vendedor de automóviles v
Yuki888 [10]

Answer:

Step-by-step explanation:

a) Si se suman las probabilidades de venta, es decir:

Probabildad de vender 0 auto ( es decir que no vendió) = 0,19

Probabildad de vender 1 auto                                              = 0,38

Probabildad de vender 2 autos                                            = 0,29

Probabildad de vender 3 autos                                            =0,15

Da por resultado:  1,01

1,01 > 1  

Ninguna probabilidad puede ser mayor que

b) LLover y no llover son condiciones excluyentes en relación al evento, es decir en relación a lluvia cualquier día o llueve o no llueve de tal forma

que las dos situaciones conforman el universo completo y deben sumar 1. en este caso el error s que suman 0.92 cando deberían sumar 1

c) No existen probabilidades negativas ( en este caso señalan -0,25 como una probabilidad

d) La probabilidad de sacar una carta de corazones es 1/4 (correcta pues hay la misma cantidad de carta de las cuatro viras  tipo ( diamante, trebo, corazones y el otro).

La mitad de las cartas son negras, de tal modo que 1/2 es correcto valor para esta probabilidad.

La probabilidad de que sea corazones y negra s 1/4*1/2  = 1/8

Luego no hay error en esta aseveración

5 0
3 years ago
Solve the equation. Round the answer to the nearest tenth.
shepuryov [24]
Hello,

1) Answer B
2.8x=5.1
==>x=51/28
==>x=1.821428...
==>x≈1.8

2) Answer D
1.26x+2.16=7.71
==>x=(7.71-2.16)/1.26
==>x=4.404761904...
==>x≈4.4

3) Answer C
5x+3=10
==>x=7/5
==>>1.4

4) Answer B

4(x-8)=18
==>4x=18+32
==>x=12.5

8 0
3 years ago
Read 2 more answers
Find the exponential function that passes through the points (1, 3) and (2, 9). A) y = 12x B) y = 9x C) y = 6x D) y = 3x
Dmitriy789 [7]

Answer:

D

Step-by-step explanation:

An exponential function which crosses through (1,3) and (2,9) will have a base of 3 since the y values are multiples of 3.

3^1 = 3

3^2 = 9

This means that the function is y = 3^x.

7 0
3 years ago
Read 2 more answers
The chart shows Nina's workout schedule. Today she worked out with weights and had a long run. When is the next time Nina will h
Dafna1 [17]

Answer:

Weights every 6 days and long run every 8 days

Step-by-step explanation:

Weights every 6 days and long run every 8 days

7 0
3 years ago
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