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2 years ago

Model 3 divided by 3/4

Mathematics

1 answer:

IRINA_888 [86]2 years ago

3 0

You have not made clear what sort of model you have in mind. Here is one kind of model. The length of 3 is shown together with the number of 3/4 lengths that make it up.

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What is the equivalent fraction of 21/10 with denominater 10 (pls help its urgent also then i will mark brainlist)

mart [117]

Answer: u can research it up

Step-by-step explanation: 210/100 i guess

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2 years ago

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Write the converse of this statement.

rusak2 [61]

If two angles are equal, then they are both obtuse

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2 years ago

(1+tanx)/(sinx+cosx)=secx

jek_recluse [69]

$\frac{1+\tan x}{\sin x+\cos x}=\sec x$ is proved

<h3><u>Solution:</u></h3>

Given that,

$\frac{1+\tan x}{\sin x+\cos x}=\sec x$ ------- (1)

First we will simplify the LHS and then compare it with RHS

$\text { L. H.S }=\frac{1+\tan x}{\sin x+\cos x}$ ------ (2)

$\text {We know that } \tan x=\frac{\sin x}{\cos x}$

Substitute this in eqn (2)

$=\frac{1+\frac{\sin x}{\cos x}}{\sin x+\cos x}$

On simplification we get,

$=\frac{\frac{\sin x+\cos x}{\cos x}}{\sin x+\cos x}$

$=\frac{\sin x+\cos x}{\cos x} \times \frac{1}{\sin x+\cos x}$

Cancelling the common terms (sinx + cosx)

$=\frac{1}{c o s x}$

We know secant is inverse of cosine

$=\sec x=R . H . S$

Thus L.H.S = R.H.S

$\frac{1+\tan x}{\sin x+\cos x}=\sec x$

Hence proved

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3 years ago

What is the value of x in the equation 7k-5x=2/3x(ax-6)

olga55 [171]

Firstly, you have to isolate the X on one side if the equation by doing that you have to divide the numbers that are on the same side of the equation as part of the X.

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2 years ago

Suppose you choose a marble from a bag containing 3 red marbles, 3 white marbles, and 5 blue marbles. You return the first marbl

pav-90 [236]

Answer:

B.15/121

Step-by-step explanation:

red-3
white-3
blue-5

total-11

P(red)= 3/11
P(blue)=5/11
P(red+blue)= 3/11*5/11= 15/121

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2 years ago