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emmainna [20.7K]
3 years ago
10

2 Sqrt5  + 3 sqrt8 equals ?

Mathematics
1 answer:
fomenos3 years ago
3 0
2 * Sqrt 5 = 4.4
Sqrt 5 = 2.2
3* Sqrt 8 = 8.4
Sqrt 8 = 2.8
8.4 + 4.4 = 12.8

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Find the value of y in the given triangle
Andre45 [30]

Given:

In the given triangle,

With respect to y, Perpendicular = 10 cm and Base = 8 cm

To find the value of y.

Formula

By Trigonometric Ratio we get,

tan\theta = \frac{Perpendicular}{Base}

Now,

Putting the values of perpendicular and base we get,

tan\theta = \frac{10}{8}

or, \theta = tan^{-1} (\frac{10}{8})

or, \theta = 51.34 ^\circ

Rounding off to the nearest tenth, we have;

\theta = 51.3 ^\circ

Hence,

The value of y is 51.3°.

7 0
3 years ago
Jared and maila will usually both run 3 miles each time they go running .This month,jared ran an additional 21 miles. Which answ
jeyben [28]

Answer:

Total = m + j

= 3 + m + 21

Step-by-step explanation:

Mails = 3 miles

Jared = 3 miles + 21 miles

j = m + 21

m = 3

Total = m + j

= 3 + m + 21

Where,

m = 3

Total = 3 + m + 21

= 3 + 3 + 21

= 27

3 0
3 years ago
Which equation is the inverse of 2(x - 2)2 = 8(7 + y)?
Marina86 [1]

Answer:

The inverse of 2(x - 2)^2 = 8(7 + y) is y=\sqrt{(4x+28)}+2

Step-by-step explanation:

Given equation :2(x - 2)^2 = 8(7 + y)

\Rightarrow \frac{2(x-2)^2}{8}=7+y\\\Rightarrow \frac{2(x-2)^2}{8}-7=y

Replace x with y and y with x

So, \Rightarrow \frac{2(y-2)^2}{8}-7=x\\\Rightarrow \frac{2(y-2)^2}{8}=x+7\\\Rightarrow 2(y-2)^2=8(x+7)\\\Rightarrow (y-2)^2=4(x+7)\\\Rightarrow (y-2)=\sqrt{4(x+7)}\\\Rightarrow y=\sqrt{4(x+7)}+2\\\Rightarrow y=\sqrt{4x+28)}+2

So, Option C is correct

Hence The inverse of 2(x - 2)^2 = 8(7 + y) is y=\sqrt{(4x+28)}+2

4 0
2 years ago
108 identical books have a mass of 30 kg. Find
Lynna [10]

Answer:

(i) 540kg

(ii) 5.56 (rounded off to 3 significant figures)

Step-by-step explanation:

108  \div 30 = 3.6kg

(i)3.6 \times 150 = 540kg

(ii)3.6 \times x = 20

3.6x = 20

x =  \frac{20}{3.6}

x = 5 \frac{5}{9}

4 0
3 years ago
Two planes leave airport at the same time, one traveling south and one traveling west. If three hours later they are 500 miles a
Snezhnost [94]
It traveled 300 miles
4 0
3 years ago
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