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cricket20 [7]
4 years ago
7

Solve the equation, and check the solutions √(x+6)=3.

Mathematics
1 answer:
posledela4 years ago
8 0

Answer:

The solution is x = 3

Step-by-step explanation:

We have the following equation:

\sqrt{x+6} = 3

Elevating both sides to 2, we can isolate x

\sqrt{x+6}^{2} = 3^{2}

x + 6 = 9

x = 9 - 6

x = 3

Checking

\sqrt{x+6} = \sqrt{3+6} = \sqrt{9} = 3

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Find the common difference of the arithmetic sequence 20,18,16,...
Liono4ka [1.6K]

Answer:

It goes down by 2 every time so -2 i'm pretty sure

8 0
3 years ago
( I NEED THIS FAST)A speedometer has a percent error of 10%. The actual speed of the car is 40 mph. Select from the drop-down me
ikadub [295]

Answer = 36.0 mph


As per the question,


Actual speed of the car = 40 mph.

Speedometer has a percent error of 10%.

The error can be negative as well as positive.

If the error is negative, it means speedometer is showing less speed than actual speed= - 10%

10  % of 40 = 4

speed shown by speedometer = 40 - (10% of 40) = 36 mph

If the error is positive, it means speedometer is showing more speed than actual speed = +10%

speed shown by speedometer = 40 + ( 10% of 40) = 44 mph

as per the given options, correct option is 36.0 mph

6 0
4 years ago
Read 2 more answers
I'm so<br> Confused about what they are saying In this question
Serhud [2]
If every one of the 8 people shakes hand with one anouther, they need you to calculate how many handshakes are happening.
3 0
3 years ago
11. &lt; ABE and &lt; DBE are supplementary
Ilya [14]

Answer:

119°

Step-by-step explanation:

< DBE = 180° - < ABE

or, < DBE = 180° - 61°

or, < DBE = 119°

hope it works, fanks !!

7 0
3 years ago
The diagonal of a TV is 26 inches long. Assuming that this diagonal forms a pair of 30-60-90 right triangles, what are the exact
Tema [17]
Hello,
let's assume a the width, b the heigth.

sin 30°=a/26=1/2==>a=26/2=13 (in)
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4 0
3 years ago
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