All categories

3 years ago

Can someone please help?

Mathematics

2 answers:

cupoosta [38]3 years ago

5 0

Answer:

The last one: 25%

Step-by-step explanation:

IRISSAK [1]3 years ago

4 0

Answer:

25% because 25 is 1/4 of 100

Step-by-step explanation:

You might be interested in

PLEASE HELPPPP I NEED THIS FASTTTTT

rusak2 [61]

Answer:

$there \: are \: 8 \: values \\ = \frac{8}{17} \times 100\% \\ = 47\%$

6 0

2 years ago

A parabola has a focus of F(8.5,−4) and a directrix of x=9.5.

HACTEHA [7]

Answer:

$-\frac{1}{2}y^2-4y+1=x$

Step-by-step explanation:

A parabola has a focus of F(8.5,−4) and a directrix of x=9.5.

General form of horizontal parabola is

$(y-k)^2=4p(x-h)$

the distance between directrix and focus is the value of p

so p = 8.5 - 9.5 = -0.5

Focus is (h+p , k), given focus is (8.5, -4)

So k = -4 and h+p = 8.5

we know p = -0.5

h +p = 8.5

h - 0.5 = 8.5

so h= 9 and k = -4

vertex is (h,k) that is (9, -4)

Now plug in the value in the general equation

$(y-k)^2=4p(x-h)$ , k= -4, h= 9 , p = -0.5

$(y+4)^2=4(-0.5)(x-9)$

$(y+4)^2=-2(x-9)$

$y^2+8y+16=-2x+18$

subtract 18 on both sides

$y^2+8y-2=-2x$

Divide whole equation by -2

$-\frac{1}{2}y^2-4y+1=x$

4 0

3 years ago

Which pairs of quadrilaterals can be shown to be congruent using rigid motions?

Misha Larkins [42]

Answer:

1 and 2 are not congruent; 1 and 3 are congruent; 1 and 4 are congruent; 2 and 3 are not congruent; 2 and 4 are not congruent; 3 and 4 are congruent.

Step-by-step explanation:

From the diagram, we can see that the angle measures and side measures of figures 1, 3 and 4 are the same. This means that these three figures are congruent. Figure 2, however, is not congruent to any of the other 3.

5 0

3 years ago

Read 2 more answers

The equation of this line is

fomenos

Answer:

y= x + 3

Step-by-step explanation:

I have the same question and that was the correct answer

6 0

2 years ago

What is the value of x? (5 points)

Ahat [919]

I’m pretty sure the answer is 30!

3 0

3 years ago

Read 2 more answers