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3 years ago

Anybody know the answer to 4x + 9 + 11x - 61

Mathematics

2 answers:

Luden [163]3 years ago

6 0

Answer:

15x-52

Step-by-step explanation:

Tanzania [10]3 years ago

5 0

Answer:

15x - 52

Step-by-step explanation:

Hi,

All you have to do is combine like terms. 4x + 11x is 15x. 9 + (-61) is simply -52.

Hope this helps :)

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4 years ago

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Step-by-step explanation:

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3 years ago

Ind the value of Z in the following equation: 8Z = 64.

Savatey [412]

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4 years ago

Read 2 more answers

The value of a mountain bike Y(in dollars) can be approximated by the model Y=200(1-.0025) to the t power, where T is the number

tino4ka555 [31]

Answer:

It will take 554 years

Step-by-step explanation:

Here, we want to estimate the time when t will be $50

We can rewrite the exponential equation as;

y = 200(1-0.0025)^t

In this case, y = $50 and we want to calculate t

so, we simply proceed to substitute the value 50 for y

we have this as ;

50 = 200(1-0.0025)^t

50/200 = (1-0.0025)^t

1/4 = 0.9975^t

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Take the natural logarithm of both sides

ln 0.25 = ln 0.9975^t

ln 0.25 = t ln 0.9975

t = ln 0.25 / ln 0.9975

t = 553.8 = 554 years

The bike will be $50 in 554 years

5 0

3 years ago

Simplify the expression: sin (2x) cos (5x) − sin (5x) cos (2x).

pantera1 [17]

Given:

The given expression is $sin (2x) \ cos (5x) - sin (5x) \ cos (2x)$

We need to determine the simplified value of the given expression.

Simplification:

Since, the given expression is in the form of $sin a \ cos b-\cos a \ sin b$ , the given expression can be simplified using the identity $\sin (a-b)=\sin a \cos b-\cos a \sin b$

Comparing the given expression with the identity, we get;

$a=2x$ and $b=5x$

Using this in the identity, we get;

$sin (2x) \ cos (5x) - sin (5x) \ cos (2x)=sin(2x-5x)$

Simplifying, we get;

$sin (2x) \ cos (5x) - sin (5x) \ cos (2x)=sin(-3x)$

Thus, the simplified value of the given expression is $sin (-3x)$

Hence, Option c is the correct answer.

7 0

4 years ago