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3 years ago

8

Helpppppppppp!!!!!!!!!

1 answer:

kumpel [21]3 years ago

7 0

Answer:

B

Step-by-step explanation:

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Please need help :) Math

o-na [289]

(y-k)²/a² + (x-h)²/b² = 1
Vertices being : A(0,1) & B(0, - 9), means that h=0

Let's calculate k: Af₁ + Af₂ = |2+8| = 2a = 10 → a=5 (f₁ and f₂ = focii)
1) a = 10 (WRONG) since a =5
2) h=3 (WRONG) since h =0
3) k =0 (WRONG) since k =5
4) b = 4 RIGHT; PROOF:
we know that : c² = a² - b²
c= 3 & a = 5 then → 3² = 5² - b²
9 = 25 - b²
b² = 25-9 = 16 and b = 4

5 0

3 years ago

Which of the following phrases correctly describes the roots of the quadratic equation (2x-3)(x+2)=3?

aliya0001 [1]

Answer:

-2 is the answe

Step-by-step explanation:

I think your answer is C

4 0

3 years ago

Graph the inequality on a<br>number line:<br>x>=11

vodomira [7]

Answer:

<h3>In the attachment.</h3>

Step-by-step explanation:

≤, ≥ - solid circle

<, > - open circle

≤, < - draw a line to the left

≥, > - draw a line to the right

We have x ≥ 11:

≥ - solid circle and draw the line to the right

8 0

3 years ago

Which expression shows 20 + 24 with 2 as a factor of each term?

stira [4]

Answer:

2(10 + 12)

Step-by-step explanation:

20 + 24

=> 2(10 + 12)

Therefore, 2(10 + 12) is our expression with 2 as a factor for each term.

Hoped this helped.

8 0

2 years ago

There is 3/8 of an apple pie left from dinner. Tomorrow, Victor plans to eat 5/8 of the pie that was left. Enter how much of the

Tcecarenko [31]

Answer:

$\frac{15}{64}$ of the pie

Step-by-step explanation:

Whole numbers refer to a collection of natural numbers together with 0.

Fraction refers to part of a whole.

Part of an apple pie left from a dinner = $\frac{3}{8}$

Part of an apple eaten by Victor tomorrow is equal to $\frac{5}{8}$ of the pie that was left

So,

Part of an apple eaten by Victor tomorrow = $\frac{5}{8}(\frac{3}{8})=\frac{15}{64}$ of the pie

7 0

3 years ago