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dedylja [7]
3 years ago
6

Please help and explain how you got the answer. Im giving out brainliest. || Q4

Mathematics
2 answers:
alexdok [17]3 years ago
8 0

Answer:

32

Step-by-step explanation:

Inside the parentheses, we see 5+3, which equals 8. Now, do 8x4, which equals 32!

rosijanka [135]3 years ago
4 0

Answer: 32

Step-by-step explanation:

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‘solve the inequality’<br> 42&gt;2-4g
lutik1710 [3]

Answer:

0

Step-by-step explanation:

3 0
3 years ago
Parabola with focus (2, 1) and directrix x=-8
scoray [572]

Consider we need to find the equation of the parabola.

Given:

Parabola with focus (2, 1) and directrix x=-8.

To find:

The equation of the parabola.

Solution:

We have directrix x=-8. so, it is a horizontal parabola.

The equation of a horizontal parabola is

(y-k)^2=4p(x-h)           ...(i)

where, (h,k) is center, (h+p,k) is focus and x=h-p is directrix.

On comparing focus, we get

(h+p,k)=(2,1)

h+p=2          ...(ii)

k=1

On comparing directrix, we get

h-p=-8         ...(iii)

Adding (ii) and (iii), we get

2h=2+(-8)

2h=-6

Divide both sides by 2.

h=-3

Putting h=-3 in (ii), we get

-3+p=2

p=2+3

p=5

Putting h=-3, k=1 and p=5 in (i), we get

(y-1)^2=4(5)(x-(-3))

(y-1)^2=20(x+3)

Therefore, the equation of the parabola is (y-1)^2=20(x+3).

6 0
2 years ago
Hi if you know 8th grd math pls help
Kryger [21]

Answer:

all correct except A.

Step-by-step explanation:

pls mark me brainly if u can

4 0
2 years ago
Please Help me, im not smart ✨​
Anika [276]

Answer:

-8 and -4

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Need a little help with one please
Pani-rosa [81]

Answer:

That would be the side-side-side (SSS) postulate, which states that if all the sides of a triangle are in a fixed ratio to all the corresponding sides of another triangle, then the two triangles are said to be congruent.

Step-by-step explanation:

Looking at triangles ABC and DEF, we notice that:

\frac{AB}{DE} = \frac{AC}{DF}=\frac{BC}{EF}

since

\frac{3}{18} = \frac{6}{36}=\frac{7}{42}=\frac{1}{6}

Let me know if you have further questions.

4 0
3 years ago
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