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3 years ago

Create an expression equivalent to 2 (3x =1) 3x+4 using the least number of terms

Mathematics

1 answer:

Mariana [72]3 years ago

6 0

Answer:

$18x^2 + 18x -8$

Step-by-step explanation:

To use the least number of terms, simplify the expression. To simplify, distribute into the parenthesis and combine like terms.

$2(3x-1)(3x+4) = 2(9x^2-3x+12x-4) = 2(9x^2+9x-4) = 18x^2 + 18x -8$

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1. In which table is y not a function of x? <br> please help!!

Hatshy [7]

Answer:

Step-by-step explanation:

because All Of The Value Of X Is The Same

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3 years ago

Please help help help thank you

Alex787 [66]

The side RS is 7 cm. For a similar triangle, the ratio of the opposite side of the two similar triangle are the same.

<h3>What is SAS similarity theorem?</h3>

ΔABC ~ ΔDEF only if the ratio of two sides of ΔABC and corresponding two sides of ΔDEF is equal, and the angle included in both sides are congruent.

Suppose the two sides of ΔABC are AB and BC, and that of DEF be DE and EF, then for SAS similarity, we need

For the similar triangle;

$\rm \frac{HG}{TS} = \frac{FG}{RS} \\\\ \frac{12}{4} =\frac{21}{RS} \\\\ RS= 7 cm$

Hence, the side RS is 7 cm.]

To learn more about the SAS similarity theorem, refer to link;

brainly.com/question/22472034

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2 years ago

Which is the value of g(−5) if g(x)=3.4x−8?

Usimov [2.4K]

I believe it is 9
The given function :
To find the value of g(5) , we need to substitute (Using substitution property) the value of x= 5 in the above function.
Now, put x= 5 in g(x), we get

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3 years ago

What is the value of r+s+t when r = 26 , s= -12 , t= -8?

Len [333]

R + s + t

Plug in the values.
r = 26
s = -12
t = -8

r + s + t
26 + (-12) + (-8)
26 - 12 - 8
14 - 8
6

Remember these rules:

a + (+b) = a + b
a + (-b) = a - b
a - (+b) = a - b
a - (-b) = a + b

5 0

3 years ago

Let v1=(3,5) and v2=(-4,7).

Nat2105 [25]

PART A

The given vectors are,

$v_1 = \: < \: 3 , \: 5 \: >$

$v_2 = \: < \: - 4 , \: 7 \: >$

The magnitude of the vector

$v= \: < \: x , \: y \: > \:$

is given by:

$|v| = \sqrt{ {x}^{2} + {y}^{2} }$

This implies that,

$|v_1| = \sqrt{ {3}^{2} + {5}^{2} }$

$|v_1| = \sqrt{9 + 25}$

$|v_1| = \sqrt{34}$

$|v_2| = \sqrt{ {( - 4)}^{2} + {7}^{2} }$

$|v_2| = \sqrt{ 16+ 49}$

$|v_2| = \sqrt{65}$

PART B

To find the unit vector in the direction of a given vector, we divide by the magnitude of that vector.

$^{ - } _{v_1} = \: < \: \frac{3}{ \sqrt{34} } , \: \frac{5}{ \sqrt{34} } \: >$

Rationalize the denominator.

$^{ - } _{v_1} = \: < \: \frac{3\sqrt{34}}{ 34 } , \: \frac{5\sqrt{34}}{ 34 } \: >$

Also,

$^{ - } _{v_2} = \: < \: \frac{ - 4}{ \sqrt{65} } , \: \frac{7}{ \sqrt{65} } \: >$

$^{ - } _{v_2} = \: < \: \frac{ - 4\sqrt{65}}{ 65 } , \: \frac{7\sqrt{65}}{ 65 } \: >$

PART C

The sketch of the given vectors as well as their unit vectors are shown in the attachment.

3 0

3 years ago