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Mekhanik [1.2K]
4 years ago
15

A two step equation that results in 15

Mathematics
2 answers:
Helga [31]4 years ago
8 0

Answer:

3x-0=45

Step-by-step explanation:

when you work this out it gives you 15 hope this helps :)

sertanlavr [38]4 years ago
4 0

Answer:

3×5 please lmk if that is what u need

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List the following numbers from least to greatest -5/3, 7/3, -3/4, 7/5.
sukhopar [10]
-3/4, -5/3, 7/5, 7/3
6 0
3 years ago
Show work and Factor 4x^2+xy-18y^2
grigory [225]

Answer:

4x^2+xy-18y^2=(4x+9y)\,(x-2y)

Step-by-step explanation:

Let's examine the following general product of two binomials with variables x and y in different terms:

(ax+by)\,(cx+dy)= ac\,x^2+adxy+bcxy+bdy^2

so we want the following to happen:

a\,c = 4\\ad+bc=1\\bd--18

Notice as well that ad+bc =1 means that those two products must differ in just one unit so, one of them has to be negative, or three of them negative. Given that the product bd=-18, then we can consider the case in which one of this  (b or d) is the negative factor. So let's then assume that a\,\,and \,\,c are positive.

We can then try combinations for  a\,\,and \,\,c  such as:

a = 4;\,\,c=1\\a=2;\,\,c=2\\a=1;\,\,c=4

Just by selecting the first one (a=4;\,\,c=1)

we get that 4d_b=1\\b=-4d-1

and since

bd=-18\\(-4d-1)\,d=-18\\-4d^2-d=-18\\4d^2+d-18=0

This quadratic equation give as one of its solutions the integer: d = -2, and consequently,

d=-18/(-2)\\d=9

Now we have a good combination of parameters to render the factoring form of the original trinomial:

a=4; \,\,b=9;\,\,c=1;\,\,d=-2

which makes our factorization:

(4x+9y)\,(x-2y)=4x^2+xy-18y^2

6 0
3 years ago
2. A sphere has surface area 16π. Find the radius of the sphere.
KiRa [710]

Answer:

The answer to your question is: 2.29 units

Step-by-step explanation:

Data

Volume = 16π

radius = ?

Formula

V = \frac{4}{3}π r^{3}

Process

                         16 π =  \frac{4}{3}π r^{3}

                         \frac{16(3)}{4} = r^{3}

                         r³ = 12

                        r = 2.29

7 0
3 years ago
PLZZ HELPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Stells [14]
Ok so for number one is 6in the radius? And for number two your answer is C. 250 in. Squared.
7 0
3 years ago
Y=1/8x <br><br><br> pls help pls cmon ill but u chicken nuggets
kramer

Answer:

  y-(1/8*x)=0

Step-by-step explanation:Slope=  

2.000

0.250

​  

=0.125

x−intercept=  

−1

0

​  

=−0.00000

y−intercept=  

8

0

​  

=0.00000

8 0
3 years ago
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