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3 years ago

X=? Y=x+3 y=-2 pls help me

Mathematics

1 answer:

Vera_Pavlovna [14]3 years ago

5 0

Answer:

-5

Step-by-step explanation:

x=? Y=x+3 ; y=-2

replace -2 with Y

-2 = x + 3

Then subtract 3 from both sides

-2 = x + 3

-3 -3

Then the positive and negative 3 cancels out leaving only

-5 = x

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Which expressions are equivalent to the equation

Ivahew [28]

Answer:

The correct answer is option 3

2⁻¹⁰ and 1/1024

Step-by-step explanation:

Points to remember

1). ( xᵃ)ᵇ = xᵇ

2). x⁻ᵃ = 1/xᵃ

It is given that, (2⁵)⁻²

<u>To find the equivalent of (2⁵)⁻²</u>

(2⁵)⁻² = 2⁻¹⁰

<u>To find the value of 2⁻¹⁰</u>

2⁻¹⁰ = 1/2¹⁰

2¹⁰ = 1024

1/2¹⁰ = 1/1024

Therefore the correct answer is 3rd option

2⁻¹⁰ and 1/1024

5 0

3 years ago

Read 2 more answers

What answer is this?

klemol [59]

Answer:

option B

$\frac{31}{50}-\frac{4}{25} i$

Step-by-step explanation:

Given in the question a complex fraction

To divide complex numbers, you must multiply by the conjugate. To find the conjugate of a complex number all you have to do is change the sign between the two terms in the denominator.

$\frac{5+4i}{6+8i}(\frac{6-8i}{6-8i})$

Distribute (or FOIL) in both the numerator and denominator to remove the parenthesis.

$\frac{30+24i-40i-32i²}{36-64i^{2} }$

Simplify the powers of i, specifically remember that i² = –1.

$\frac{62-16i}{36+64}$

$\frac{62}{100}-\frac{16i}{100}$

simply

$\frac{31}{50}-\frac{4}{25}i$

8 0

4 years ago

) Asuka travels at an average speed of 50 mph for 20 miles.

Anuta_ua [19.1K]

Answer: 41.86 miles/hour

Step-by-step explanation:

Use Distance = Speed*Time to find the two missing values with the data that is provided for those two cases [<em>in brackets</em>].

MPH MILES HOURS

50 20 [<em>0.4]</em>

[<em>40</em>] <u>70</u> <u>1.75</u>

Totals 90 miles 2.15 hours

Average = 90 miles/2.15 hours

41.86 mph

5 0

3 years ago

Evaluate the following expression when x = 3 and y = 4:

SpyIntel [72]

Not 100% sure but I think that it is 14.6

4 0

3 years ago

Can you help me with this please cause I can't do math!

harina [27]

Answer:

Step-by-step explanation:

(3x-5)+(2x-1)+(x+1) = 6x-5 = 31

6x = 36

x = 6

4 0

3 years ago