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2 years ago

Thrice a number decreased by 5 exceeds twice the number by a unit find the number

Mathematics

1 answer:

viktelen [127]2 years ago

6 0

Working attached below. Hope this helps! Any questions let me know :)

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PLEASE SHOW WORK OR EXPLAIN

timofeeve [1]

Answer:

Step-by-step explanation:

You must use the trigonometric function.

In this case, it will be tangent.

$tangent=\dfrac{opposite}{adjacent}$

We have

$\theta=38^o,\ opposite=r,\ adjacent=20$

$\tan38^\approx0.7813$

Substitute:

$\tan38^o=\dfrac{r}{20}$

$\dfrac{r}{20}=0.7813$ <em>multiply both sides by 20</em>

$r=15.626$

Tree height is r + 5.

Therefore

$r+5=15.626+5=20.626\approx20.6\ ft$

7 0

3 years ago

Which one that doesn’t belong ? 1/20, 20/25, 2/3, 5,4 <br> Need help!!

Setler [38]

Answer:

$\frac{5}{4}$

Step-by-step explanation:

Out of the given options, $\frac{5}{4}$ is the only fraction that is improper. All other options are not improper. Therefore, $\frac{5}{4}$ would not belong is the given group of fractions.

Hope this helps.

3 0

3 years ago

Read 2 more answers

Write an expression<br> for: "the quotient of<br> a number and 7<br> increased by 10"

yarga [219]

Answer:

(n / 7) + 10 = x

Step-by-step explanation:

7 0

3 years ago

If x<0 and y>0, determine the sign of the real number x-y/xy ...?

Ludmilka [50]

If x<0 and y>0, then the sign of the real number x-y/xy would be positive. <span>If x is negative and y is positive then x-y is negative and xy is negative. A negative number divided by another negative number would be positive. Hope this answers the question.</span>

4 0

3 years ago

Need help with this question plz

Leto [7]

Y should definitely get that phonw I ah eggs same but it’s red

5 0

3 years ago