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steposvetlana [31]

4 years ago

12

In addition to the information given in the drawing, which statement is sufficient to prove △STW ~ △XYZ?

2 answers:

Paraphin [41]4 years ago

5 0

I’m pretty sure the answer is C

mafiozo [28]4 years ago

3 0

Answer:

I belive the answer is D

Step-by-step explanation:

27/9=3

multiply all other sides by three and you get D

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Which is the factorization of 8x2 13x – 6? (8x – 3)(x 2) (x – 6)(8x 1) (2x – 2)(4x 3) (4x – 1)(2x 6)

vagabundo [1.1K]

we have

$8x^2+13x - 6$

Equate the function to zero

$8x^2+13x - 6=0$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$8x^2+13x = 6$

Factor the leading coefficient

$8(x^2+\frac{13}{8}x) = 6$

Complete the square. Remember to balance the equation by adding the same constants to each side.

$8(x^2+\frac{13}{8}x) = 6$

$8(x^2+\frac{13}{8}x+\frac{169}{256}) = 6 +\frac{169}{32} \\ \\ 8(x+\frac{13}{16} )^{2} =\frac{361}{32} \\ \\ (x+\frac{13}{16} )^{2} =\frac{361}{256}\\ \\ (x+\frac{13}{16} ) =(+/-)\sqrt{\frac{361}{256}} \\ \\ (x+\frac{13}{16} ) =(+/-)\frac{19}{16} \\ \\ x1=-\frac{13}{16} +\frac{19}{16} =\frac{6}{16}\\ \\ x2=-\frac{13}{16} -\frac{19}{16}=-2$

the factorization is equal to

$8*(x-\frac{6}{16} )*(x+2)=(8x-3)*(x+2)$

therefore

<u>the answer is</u>

$(8x-3)*(x+2)$

3 0

3 years ago

Read 2 more answers

What is the turning point of the quadratic y=4x^2+24x+15

DochEvi [55]

Answer: (-3, -21)

I'm not sure if that's what you wanted, sorry.

4 0

3 years ago

Read 2 more answers

Please help, quick math, and a short explanation on how you got the answer! Thank you!!

Lostsunrise [7]

Answer:

this is an iscoceles triangle.

I know this because 2 of the sides are equal in length

Therefore,

AB=AC

3x-5=-2x+15

x-5=15

x=20

if x=20 then BC=2(20)

BC=40

Step-by-step explanation:

4 0

3 years ago

Which would the phrase "the difference between a number and 5" look like as a variable expression?

zloy xaker [14]

The phrase “the difference between a number and 5” as a variable expression would look like: x - 5

3 0

3 years ago

Suppose that weights of bags of potato chips coming from a factory follow a normal distribution with mean 12.8 ounces and standa

MA_775_DIABLO [31]

Answer:

std dev = 0.625

Step-by-step explanation:

Given that weights of bags of potato chips coming from a factory follow a normal distribution with mean 12.8 ounces and standard deviation .6 ounces.

We must change std deviation such that

P(X<12) =0.01

Mean would remain the same as 12.8 oz

From normal distribution score we can find

10th percentile is -1.28\

i.e. we must have

$12.8-1.28*s = 12\\1.28s = 0.8\\s = 0.625$

Std deviation should be 0.625

6 0

3 years ago