2 years ago

A student weighs a sample of the shale and

Mathematics

1 answer:

tia_tia [17]2 years ago

4 0

interesting choice of pfp

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X÷40=25.5<br> What does x equal

wariber [46]

Answer:

1,020

Step-by-step explanation:

25.5 times 40 equals 1,020

4 0

2 years ago

Write in if/Then form: A shape has 4 congruent sides, if it is a rhombus.

8_murik_8 [283]

Answer: If a shape has 4 congruent sides, then it is a rhombus.

Step-by-step explanation: I just added the words in the appropriate places.

8 0

3 years ago

A drugstore charges customers 40 cents to print a photograph. Regina spends $4.80 to print photographs at this store.

Marrrta [24]

Answer:

12 photos

Step-by-step explanation:

x will represent the number of photos

4.80=.4x

divide 4.80 by .4

x= 12

she printed 12 photos

6 0

2 years ago

What number should be added to both sides of the equation to complete the square x2 + 8x = 17 (x2 is an exponent so x squared by

Arte-miy333 [17]

The answer I believe would be 2

7 0

3 years ago

A) x = -2<br> B) y =2<br> C) y= -2

LenKa [72]

Answer:

Step-by-step explanation:

This is a positive parabola so it opens upwards. The equation for the directrix of this parabola is y = k - p. k is the second number in the vertex of the parabola which is (0, 0), but we need to solve for p.

The form that the parabola is currently in is

$y=a(x-h)^2+k$ so that means that $a=\frac{1}{8}$ . We can use that to solve for p in the formula

$p=\frac{1}{4a}$ so

$p=\frac{1}{4(\frac{1}{8}) }$ which simplifies to

$p=\frac{1}{\frac{1}{2} }$ which gives us that

p = 2. Now to find the directrix:

y = k - p becomes

y = 0 - 2 so

y = -2, choice A.

6 0

3 years ago