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2 years ago

Look at picture because I cannot put square roots in

Mathematics

1 answer:

monitta2 years ago

7 0

Answer:

Step-by-step explanation:

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Please someone help me ITS URGENT I WILL BRAINLIST UUUU AND MARK U 5 star!! ANYONE WHO IS GOOD AT MATHS?..

adell [148]

Answer:

28260 cubic cm

Step-by-step explanation:

Given,

Diameter of the cylinder = 30cm

So, radius of the cylinder = 30cm ÷2 = 15 cm

Height of the cylinder = 40 cm

There, volume of the cylinder,

$= \pi {r}^{2} h$

$= 3.14 \times 15cm \times 15cm \times 40cm$

$= {28260cm}^{3}$

6 0

2 years ago

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What is tanA? A. 15/17 B. 8/17 C. 8/15 D. 15/8

Hoochie [10]

Tangent(Angle) = Opposite / adjacent

Tangent(A) = 15 / 8

The answer is D. 15/8

4 0

2 years ago

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Please simplify the following trigonometric identity.

lesya692 [45]

Examining the question:

We are given the expression:

$\frac{1}{Sec(\alpha)-Tan(\alpha)}$

We know from Basic trigonometry that:

$Sec(\alpha) = \frac{1}{Cos(\alpha)}$

$Tan(\alpha) = \frac{Sin(\alpha)}{Cos(\alpha)}$

Simplifying the expression:

Replacing these values in the given expression, we get:

$\frac{1}{\frac{1}{Cos(\alpha)} -\frac{Sin(\alpha)}{Cos(\alpha)} }$

Since the denominator of both the values in the denominator is the same:

$\frac{1}{\frac{1-Sin(\alpha)}{Cos(\alpha)} }$

We know that $\frac{1}{\frac{a}{b} }$ = $\frac{b}{a}$ , using the same property:

$\frac{Cos(\alpha)}{1-Sin(\alpha)}$

and we are done!

7 0

2 years ago

Read 2 more answers

I need help with 63 64 and 65 please please please help

snow_tiger [21]

#64
Let x represent the time spent for valleyball
Then swimming will be 2x

x + 2x = 4.5
3x = 4.5
x = 4.5/3
x = 1.5

Time spent on valleyball: 1 1/2 hours
Time spent on swimming: 3 hours

5 0

2 years ago

( please help, 20 points!! )

deff fn [24]

Measure of anfle 5=150

7 0

2 years ago