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SIZIF [17.4K]
3 years ago
10

Can somebody help me with this ?? :)

Mathematics
1 answer:
valentinak56 [21]3 years ago
8 0

Answer:

see below

Step-by-step explanation:

When D reflects across l it becomes the mirror image.  The front of D faces the line.  Then we reflect again across m it will become a mirror image of the mirror image ( or be a D again)

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Denali is making curtains for her room. She needs 12 feet of fabric for one curtain and 16 feet for the other. The fabric store
sineoko [7]
12 feet + 16 feet= 28 feet needed

The store does not have enough fabric.

There are 3 feet in a yard.
8 yards * 3 feet= 24 feet of fabric available
4 0
3 years ago
Complete the equation of the line through (3, -1) and (4, 7)​
nikitadnepr [17]

Answer:

  y = 8x -25

Step-by-step explanation:

The two-point form of the equation of a line can be used.

  y = (y2 -y1)/(x2 -x1)(x -x1) +y1

  y = (7-(-1))/(4-3)(x -3) +(-1)

  y = 8(x -3) -1

  y = 8x -25 . . . . slope-intercept form of the equation

_____

We don't know what you're starting with, so we don't know how to "complete the equation." Perhaps the above equation is sufficient for the task.

4 0
4 years ago
Point-slope equation of the line through (6,4) and (7,2)
Monica [59]

Answer:

-2

Step-by-step explanation:

You should use the formula Y2-Y1/X2-X1.


2-4/7-6


5 0
4 years ago
what is the polynomial function of lowest degree with leading coefficient of 1 and roots 2 and 1 + square root2
Marta_Voda [28]
If the roots to such a polynomial are 2 and 1+\sqrt2, then we can write it as

(x-2)(x-(1+\sqrt2))

courtesy of the fundamental theorem of algebra. Now expanding yields

(x-2)(x-1-\sqrt2)=x^2-2x-(1+\sqrt2)x+2(1+\sqrt2)=x^2-(3+\sqrt2)x+2+2\sqrt2

which would be the correct answer, but clearly this option is not listed. Which is silly, because none of the offered solutions are *the* polynomial of lowest degree and leading coefficient 1.

So this makes me think you're expected to increase the multiplicity of one of the given roots, or you're expected to pull another root out of thin air. Judging by the choices, I think it's the latter, and that you're somehow supposed to know to use 1-\sqrt2 as a root. In this case, that would make our polynomial

(x-2)(x-(1+\sqrt2))(x-(1-\sqrt2))=x^3-4x^2+3x+2

so that the answer is (probably) the third choice.

Whoever originally wrote this question should reevaluate their word choice...
5 0
3 years ago
Aaaaaa help I’m stuck at F I really need to do this so I could get a D please with explanation
Fed [463]

Answer:

$1.51

Step-by-step explanation:

1.25 lb. of dried fruit  :  \frac{\$1.84}{lb.}*\frac{1.25\ lb.}{1}=\$2.30

0.5 lb. of cereal  :  \frac{\$2.38}{lb.}*\frac{0.5\ lb.}{1}= \$1.19

Cost = $2.30 + $1.19 = 3.49

Money = $5

$5 - $3.49 = $1.51 in change

5 0
3 years ago
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