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3 years ago

Help on number 7 please

Mathematics

2 answers:

WARRIOR [948]3 years ago

6 0

Answer:

Meh

Step-by-step explanation:

vazorg [7]3 years ago

6 0

Answer:

1/2

Step-by-step explanation:

$\frac{3}{8} * 72 + x = 63\\$

x = 36

$\frac{36}{72} = \frac{1}{2}$

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Simplify<br> ^3<br> V-27n^27

Sauron [17]

Apply the radical rule to separate terms:

Cubicroot(-27) and cubic root(n^27)

Cubicroot(-27) = -3

Now you have -3 cubicroot(n^27)

Using the exponent rule

N^27 can be rewritten as (n^9)^3

Now you have -3 cubicroot((n^9)^3)

The cubic root and the 3rd power cancel out to get the final answer of

-3n^9

8 0

3 years ago

Two of the exterior angles of a triangle are $158^\circ$ and $99^\circ.$ Find the third exterior angle, in degrees.

Lisa [10]

Answer:

The third exterior angle is $103^o$

Step-by-step explanation:

Given

$\theta = 158^o$

$\alpha = 99^o$

Required

The third exterior angle $(\beta)$

The exterior angles of a triangle add up to 360 degrees.

So:

$\theta + \alpha + \beta = 360^o$

Make $\beta$ the subject

$\beta = 360^o - (\theta + \alpha)$

Substitute known values

$\beta = 360^o - (158^o + 99^o)$

$\beta = 103^o$

4 0

3 years ago

What is the solution to log 25x = 3?

MrMuchimi

$\log(25x)=3\\10^3=25x\\25x=1000\\x=40$

5 0

3 years ago

Can any one solve this problem

ElenaW [278]

Answer:

sorry i can't

please mark me as brainlest

6 0

3 years ago

Indigo Depot is having a clearance sale of their fall items. A jacket that originally cost $120 before any discount is on sale f

Sauron [17]

Answer:

The final price is $66.

Step-by-step explanation:

This question can be solved by a rule of three.

The initial price was of $120.

Initially, there was a discount of 15%. Then, there is another discount on the initial price. So the total discount is of 15+30 = 45%.

So the final price will be 100-45 = 55% = 0.55 of the initial price.

$120 - 1

x - 0.55

$x = 0.55*120 = 66$

The final price is $66.

5 0

4 years ago