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const2013 [10]
3 years ago
15

Complete this statement 45ax^2+27 ax+18a=9a

Mathematics
1 answer:
hichkok12 [17]3 years ago
5 0
Hello :
45ax²<span>+27 ax+18a=9a
45ax² +27ax +9a =0
</span><span>this statement is :
</span><span> - if : a= 0   this expression = 0
- if : a </span>≠ 0    this expression = 45x²+27x+9

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Mortar is made by mixing cement, sand and quicklime in the ration 1:2:3
timurjin [86]

Answer with step-by-step explanation:

If the ratio for the ingredients is 1:2:3, then the total would be 6. If so, we have to divide 2.1 by 6, which is 0.35. Now, you need to multiply 0.35 to the according ingredient amounts.

Cement: 1 x 0.35 = 0.35

Sand: 2 x 0.35 = 0.70

Quicklime: 3 x 0.35 = 1.05

If you add it up, you will get 2.1, which is the volume.

Hope this helped! (brainliest please)

3 0
3 years ago
Two pentagons are similar. the area of one of the Pentagon is 9 times that the other. determine the ratio of the length of the c
kolbaska11 [484]
<h2><u><em>Answer:</em></u></h2><h2><u><em></em></u></h2><h2><u><em>The ratios of the lengths of the corresponding  sides of the two pentagons is 3:1</em></u></h2><h2><u><em></em></u></h2><h2><u><em>The ratios of the perimeters of the two pentagons is 3:1</em></u></h2><h2><u><em></em></u></h2><h2><u><em>Step-by-step explanation:</em></u></h2><h2><u><em></em></u></h2><h2><u><em>Let the first pentagon be X and the second pentagon be Y.</em></u></h2><h2><u><em></em></u></h2><h2><u><em>Ratio of area of the two pentagons is </em></u></h2><h2><u><em>9</em></u></h2><h2><u><em>Ratio of sides of the pentagon is equal to</em></u></h2><h2><u><em></em></u></h2><h2><u><em>3</em></u></h2><h2><u><em></em></u></h2><h2><u><em>Ratio of perimeters is equal to ration of sides</em></u></h2><h2><u><em></em></u></h2><h2><u><em>Hence,</em></u></h2><h2><u><em>The ratio of the perimeter is 3 as well</em></u></h2>

<u><em></em></u>

<em></em>

7 0
2 years ago
Tan2(θ) − 3 = 0<br> Find all solutions for the given equation.
kondaur [170]
Hello :
tan²(θ) = 3.. equi : tan(θ) = √3  or tan(θ) = -√3
1 ) tan(θ) = √3
tan(θ) = tan(<span>π/3)
</span>θ = π/3 +kπ  k in Z
2)tan(θ) = -√3
tan(θ) = tan(-π/3)
θ = -π/3 +kπ  k in Z


4 0
3 years ago
What is the volume of this rectangular prism?
sergiy2304 [10]

Answer:

V =\frac{12}{5}\ cm^3

Step-by-step explanation:

<u>The Volume of Rectangular Prism</u>

Given a rectangular prism of dimensions W, L, and H, its volume is the product of the three dimensions:

V = WLH

The figure shows the dimensions:

L=3 cm

W=\frac{4}{3}\ cm

H=\frac{3}{5}\ cm

Thus, the volume is:

V =3*\frac{4}{3}*\frac{3}{5}\ cm^3

V =\frac{36}{15}\ cm^3

Simplifying:

\boxed{V =\frac{12}{5}\ cm^3}

5 0
3 years ago
Can anyone explain this to me? I don’t get it
Mama L [17]

Answer:

Sin x = 0.56976744186

Step-by-step explanation:

Sin x = 4.9/8.6

8 0
3 years ago
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