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valkas [14]
3 years ago
5

t="\sqrt[3]{-8/27} = -2/3" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
sasho [114]3 years ago
5 0
The equation is true because both sides are identical.
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2.144 to the nearest decimal place
nikklg [1K]

Answer:

2.14

Step-by-step explanation:

6 0
3 years ago
Trigonometry
Natasha_Volkova [10]

Answer:

Step-by-step explanation:

For a triangle the area is

A=\frac{1}{2}bh

If our triangle is isosceles and the 2 congruent sides each measure 4 and they include an angle of 40 degrees, let's say that the vertex angle is 40 and the sides that are not the base each measure 4.  If we drop an altitude from the vertex to the base, we cut the triangle into 2 right triangles, with the vertex angle being 20 degrees and the hypotenuse being 4.  To find the base, then, which is opposite the angle, we use the sin ratio:

sin(20)=\frac{b}{4} and

4sin(20) = b so

b = 1.368

But we need the whole base, and that is only half of it.  So

2b = 2.736

To find the height, which is adjacent to the angle, we use the cos ratio:

cos(20)=\frac{h}{4} and

4cos(20) = h so

h = 3.759

Now we have enough info to find the area of the triangle using the triangle area formula from above:

A=\frac{1}{2}(2.736)(3.759) and

A = 5 meters squared.

7 0
3 years ago
Tallulah has 40 dimes and some nickels. The total value of her change is $5.00. How many nickels does Tallulah have?
Verdich [7]
40 dimes is $4.00. you would need $1 in nickles. 2 nickles is 10 cents. so you would need 20 nickles.

10x+160=300
      -160  -160
10x=140
divide both sides by 10
x=14
$14
8 0
3 years ago
Read 2 more answers
Find the value of 5x - 4x^2 for x=2
photoshop1234 [79]

Answer:

=10

Step-by-step explanation:

5x-4x². (x=2)

5(2)-4(2)²

=10-0

=<em>1</em><em>0</em>

4 0
3 years ago
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BaLLatris [955]

\large\underline\red{\sf \implies Solution :- }

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<h3><u>I </u><u>hope</u><u> </u><u>it </u><u>helped </u><u>ツ</u></h3>
4 0
3 years ago
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