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3 years ago

Is 49 a perfect square yes or no

Mathematics

2 answers:

Romashka [77]3 years ago

4 0

Answer:

Yes

Step-by-step explanation:

7 x 7 = 49

slega [8]3 years ago

4 0

Yes

(this is me just adding characters so that it accepts it)

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Simplify 3^2 * 3^(-5). Express your answer as a fraction

murzikaleks [220]

Answer:

1 /27

1 over 27

Step-by-step explanation:

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3 0

2 years ago

Need help ASAP will vote brainliest

xeze [42]

Answer:

Step-by-step explanation:

7 0

2 years ago

PLEASE HELP!! if sec x=5/3 what is the value of b? NL=20 LM=3b angle of L is x degrees.

Readme [11.4K]

Answer:

a. b=4

Step-by-step explanation:

$\sec \theta =\dfrac{1}{\cos \theta} = \dfrac{Hypotenuse}{Adjacent}$

From the attached triangle drawn below:

NL=20, LM=3b, $\angle L=x^\circ$

$\sec x =\dfrac{20}{3b}$

Since we are told that:

$\sec x =\dfrac{5}{3}\\$Then:\\\dfrac{20}{3b} =\dfrac{5}{3}\\$Cross multiply\\5 \times 3b =20 \times 3\\15b=60\\$Divide both sides by 15\\15b \div 15 =60 \div 15\\b=4$

The correct option is A.

8 0

3 years ago

Shawna climbed 5 flights of stairs. There were 9 steps in each flight. How many steps did Shawna climb?

exis [7]

Shawna will climb 45 steps

The first step is to write out the parameters given in the question

Shawna climbed 5 flights of stairs

There were 9 steps in each flight

The number of steps can be calculated by multiplying the number of flight of stairs by the number of steps

= 9 × 5

= 45

Hence there are 45 steps for Shawna to climb