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3 years ago

Ello please help me im lost

Mathematics

1 answer:

docker41 [41]3 years ago

7 0

Answer:

For the second image the answer is 1.2

Step-by-step explanation:

The others won’t load in ;-;

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A television and DVD player cost a total of 1132. The cost of the television is three times the cost of the DVD player. What is

lubasha [3.4K]

Let x rep cost of dvd in $
so the cost of tv is 3x
and x + 3x = 1132
4x=1132
x=1132/4
x= 283 and 3x=3(283)=849

7 0

2 years ago

A wire 48 m long carries a current of 18 A from west to east.

Arisa [49]

Step-by-step explanation:

Given that,

The length of a wire, L = 48 m

Current in the wire, I = 18 A (west to east)

The magnetic field in the wire, B = $8.3\times 10^4\ T$ (towards south)

The magnetic force acting on the wire is given by :

$F=I(L\times B)\\\\F=48\cdot18\cdot8.3\cdot10^{-4}\ N\\\\F=0.71\ N$

Using right hand rule, the direction of magnetic force is upwards.

4 0

2 years ago

A ball is dropped from a bridge which is 160 feet above a river. how long will it take the ball

S_A_V [24]

H(t)=-16t²+160
0=-16t²+160
16t²=160
t²=10
t=√10 or 3.16 seconds
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7 0

3 years ago

Copy the problems onto your paper, mark the givens and prove the statements asked. Given: ∠BTO ≅ ∠IWE WI ≅ BT , OW ≅ ET Prove: △

Varvara68 [4.7K]

Answer:

$\triangle BOT \cong \triangle IEW$

Step-by-step explanation:

We are given the following in the question:

$\angle BTO \cong \angle IWE\\WI \cong BT\\OT \cong EW$

We have to prove:

$\triangle BOT \cong \triangle IEW$

Proof:

$\text{In }\triangle BOT \text{ and } \triangle IEW$

we can write:

$\angle BTO = \angle IWE\text{ (Given)}\\WI \cong BT\text{ (Given)}\\OT \cong EW\text{ (Given)}$

Hence, the two triangle are congruent by SAS congruency rule.

$\triangle BOT \cong \triangle IEW$

The attached image shows the two triangle.

8 0

2 years ago

Need help with these

natulia [17]

Answer:

get a tutor 123456777654345678

Step-by-step explanation:

3 0

2 years ago