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MrMuchimi
3 years ago
10

PLEASE HELP MATHS PROBLEM!!!

Mathematics
2 answers:
UkoKoshka [18]3 years ago
5 0

Step-by-step explanation:

\frac{5}{1 -  \sqrt{7} }  \\  multiply \: both \: by \: (1 +  \sqrt{7) }  \\  \frac{5(1 +  \sqrt{7)} }{(1 -  \sqrt{7})(1 +  \sqrt{7)}  }  \\ =   \frac{5(1 +  \sqrt{7)}}{1 -  { \sqrt{7} }^{2} }   \\  =  \frac{5(1 +  \sqrt{7)} }{1 - 7}  \\  =  \frac{5(1 +  \sqrt{7)} }{ - 6}  \\  =  \frac { - 5}{ \:  6} \frac{(1 +  \sqrt{7}) }{}

adoni [48]3 years ago
4 0

Just ask google ot will halp you better but i think its -48

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(it says 8.5 at the left edge of orange) Find the total area of the prisms
tiny-mole [99]

Answer:

273.295 m^3

Step-by-step explanation:

Well I'm going to assume your talking about the volume first. :> So, let's find the orange one first cuz yes.

The rectangular prism has the volume of 8.5 x 5.7 x 4.3 and I think you should just use a calculator but I'll just tell you that the volume of this one is 208.335

Now we need to find the volume of the triangular prism which has side lengths of 3.5 6.4 and 5.8 . Now we must remember the strategy for finding the volume of a triangular prism is different because the formula is
V =(1/2)× b × h × l so lets plug in our values. Well, first 3.5 x 6.4 x 5.8 is 129.92 and then we multiply that by 1/2 and I'll tell you that it's 64.96

Finally, let us add the two values to find the total area. 208.335 + 64.96 is... 273.295 now remember the units it meters cubed!

7 0
2 years ago
Determine the answer to (−3) + (−5) and explain the steps using a number line
ASHA 777 [7]

Answer:

-8

Step-by-step explanation:

When adding a negative number on a number line, we move to the left. This is because adding a negative number is the same as subtracting. If we start at -3 and move 5 to the left, we will end at -8.

8 0
3 years ago
Jillian is making curtains for her room. She has fabric for each curtain that is 1.6 meters in length. She folds the bottom of t
iogann1982 [59]
The curtains will be 152 cm or 1.52 m.

There are 100 cm in a meter. Therefore, 1.6 meters is equal to 160 cm. If we subtract 8 from 160, we have 152 cm. We can also write it as 1.52 m.
7 0
3 years ago
K² = 76<br><br>What is the answer?​
Dmitry_Shevchenko [17]

Answer:

k = 2 √ 19 , − 2 √ 19

Step-by-step explanation:

Take the root of both sides and solve.

3 0
2 years ago
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What is the measure of 0 in radians?
Allushta [10]

Answer:

Thus, the expression to find the measure of θ in radians is θ = π÷3

Step-by-step explanation:

Given that the radius of the circle is 3 units.

The arc length is π.

The central angle is θ.

We need to determine the expression to find the measure of θ in radians.

Expression to find the measure of θ in radians:

The expression can be determined using the formula,

where S is the arc length, r is the radius and θ is the central angle in radians.

Substituting S = π and r = 3, we get;

Dividing both sides of the equation by 3, we get;

3 0
3 years ago
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