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Nadusha1986 [10]

2 years ago

15

A sink Wentz of transformations maps ^ABC to ^A’B’C’. The sequence of transformations that maps ^ABC to ^A’B’C’ is a reflection

across the

1 answer:

icang [17]2 years ago

5 0

Again we need more explanation

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Please help!! thanks you whoever can answer this for me <3

SVETLANKA909090 [29]

Alternate means opposite in a way, and the only answer that gives us "opposite angles" is D. angle 4 and angle 6.

8 0

2 years ago

Read 2 more answers

What is the equation of a line with a slope of 3 and a point (3, 1) on the line?

topjm [15]

The equation of a line that passes through the point (x1,y1) and has a slope of m is
y-y1=m(x-x1)
given
(3,1) and m=3

y-1=3(x-3)
y-1=3x-9
y=3x-8

8 0

2 years ago

Solving Inequalities Independent Practice

Gelneren [198K]

Answer:

X< 9

Step-by-step explanation:

1/3x-6<-3 is correct.

3 0

2 years ago

Please teach me on how to answer this question. (addmath question)

arsen [322]

We know that $\overline{x}=8$ so:

$\overline{x}=8\\\\\\\dfrac{\sum\limits_{k=1}^7\,x_k}{7}=8\qquad|\cdot7\\\\\\ \boxed{\sum\limits_{k=1}^7\,x_k=56}$

We want to calculate:

$\sum\limits_{k=1}^7\,\big(2x_k-3\big)^2=\sum\limits_{k=1}^7\,\big(4x_k^2-12x_k+9\big)=\\\\\\=\sum\limits_{k=1}^7\,4x_k^2-\sum\limits_{k=1}^7\,\big12x_k+\sum\limits_{k=1}^7\,9=4\sum\limits_{k=1}^7\,x_k^2-12\sum\limits_{k=1}^7\,x_k+\sum\limits_{k=1}^7\,9=\\\\\\=4\cdot672-12\cdot56+7\cdot9=2688-672+63=\boxed{2079}$

5 0

2 years ago

If an object is dropped from a height of 144 feet, the function h(t)=-16t^2+144 gives the height of the object after t seconds.

shtirl [24]

Answer:

A. 3s

Step-by-step explanation:

The height of the object after t seconds is given by:

$h(t) = -16t^2 + 144$

When will the object hit the ground?

It hits the ground after t seconds, and t is found when $h(t) = 0$ . So

$h(t) = -16t^2 + 144$

$0 = -16t^2 + 144$

$16t^2 = 144$

$t^2 = \frac{144}{16}$

$t^2 = 9$

$t = \sqrt{9}$

$t = 3$

3 seconds, so the correct answer is given by option a.

5 0

2 years ago