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larisa86 [58]
3 years ago
6

Simplify the following expression 5^2 - 4

Mathematics
2 answers:
LenaWriter [7]3 years ago
4 0
Omg this is an elementary answer
5^2 - 4 is
Five to the power of 2 minus 4
5 times 5 = 5 ^ 2 so it would be
25 - 4

In equations it would be 25-4= 21 BUT THIS IS AN EXPRESSION just remember that.
murzikaleks [220]3 years ago
4 0
<span>he following expression 5^2 - 4 is 21</span>
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Use rhombus TQRS below for questions<br> what is the value of x?<br> what is the value of y?
sladkih [1.3K]

The value of x is 1.

The value of y is 4.

Solution:

Given TQRS is a rhombus.

<u>Property of rhombus: </u>

Diagonals bisect each other.

In diagonal TR

⇒ 3x + 2 = y + 1  

⇒ 3x – y = –1 – – – – (1)

In diagonal QS

⇒ x + 3 = y

⇒ x – y = –3 – – – – (2)

Solve (1) and (2) by subtracting

⇒ 3x – y – (x – y) = –1 – (–3)

⇒ 3x – y – x + y = –1 + 3

⇒ 2x = 2

⇒ x = 1

Substitute x = 1 in equation (2), we get

⇒ 1 – y = –3

⇒ –y = –3 – 1

⇒ –y = –4

⇒ y = 4

The value of x is 1.

The value of y is 4.

6 0
3 years ago
The coastline of the US is 12,383 miles long. Canada's coastline is 113,211 miles longer than the coastline of the US. How long
Vanyuwa [196]
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8 0
3 years ago
If ln(4x+y)=2x-3,then dy/dx=
Viktor [21]

\ln(4x+y)=2x-3

Differentiate both sides wrt x:

\dfrac{\mathrm d(\ln(4x+y))}{\mathrm dx}=\dfrac{\mathrm d(2x-3)}{\mathrm dx}

By the chain rule, we get

\dfrac1{4x+y}\dfrac{\mathrm d(4x+y)}{\mathrm dx}=2

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4+\dfrac{\mathrm dy}{\mathrm dx}=8x+2y

\boxed{\dfrac{\mathrm dy}{\mathrm dx}=8x+2y-4}

4 0
3 years ago
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Mademuasel [1]
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Hint: when you see two negative sign just turn them into plus sign.  

7 0
3 years ago
Read 2 more answers
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alukav5142 [94]

Answer:

idk

Step-by-step explanation:

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3 0
3 years ago
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