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Serga [27]
3 years ago
9

Please help!!! Also do not put a link as your answer. Whoever answers this first with work shown will get Brainliest, and 30 poi

nts.
What is the equation of a parabola with (-3,3) as the focus, and y=5 as the directrix?
Remember no link! :)
Mathematics
1 answer:
Maurinko [17]3 years ago
3 0

Answer y = 1/4 (x+3)^2 + 4

Step-by-step explanation:

If the focus is (-3, 3) and the directrix is y=5, the vertex is at (-3, 4). a = 1/4p, p=1, a=1/4. (h,k) is the vertex.

y=a(x-h)^2 +k

y=1/4(x+3)^2+4

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Without calculating , decide which is greater : 3999 divided by 129 or 3834 divided by 142 .
pickupchik [31]
Probably 3999 divided by 129
5 0
3 years ago
Read 2 more answers
the ages of sari and justin can be represented as two consecutive integers. The product of their age is 72. Justin is older. wri
Lelechka [254]

The age of Sari is 8 years.

The age of Justin is 9 years.

Explanation:

Let x denote the age of Justin.

Let y denote the age of Sari.

Given that the product of their age is 72.

Thus, it can be written in equation as

xy=72

Since, the numbers x and y are consecutive integers and Justin is older, then, it can be written as,

x=y+1

Therefore, the two equations are xy=72 and x=y+1

<u>The ages of Sari and Justin:</u>

The ages of Sari and Justin can be determined by solving the two equations.

Let us solve the equations using substitution method.

Substituting x=y+1 in the equation xy=72, we have;

    (y+1)y=72

       y^2+y=72

y^2+y-72=0

Factoring the equation, we get;

(y-8)(y+9)=0

y=8 \ or \ y=-9

The value of y cannot be negative.

Thus, y=8 is the value of y.

Substituting y=8 in the equation x=y+1, we have;

x=8+1

x=9

Thus, the value of x is 9.

Therefore, the age of Sari is 8 years and the age of Justin is 9 years.

5 0
3 years ago
Which equation illustrates the multiplicative inverse property?
Olin [163]

Answer:

b.

Have a Good Day :D

6 0
4 years ago
If a crate of soda costs sh. 24,000. What is the cost of one bottle of soda
Serjik [45]
A buck more or less that’s what soda costs
8 0
4 years ago
Someone Please help me answer this question.
Shalnov [3]

∠C is 148°.

Step-by-step explanation:

  • Step 1: Given ∠A = 16° and ∠B = (10x - 64)°. Also, AC = BC. Now, the angles opposite to equal sides of a triangle are equal. So ∠B = 16°
  • Step 2: Sum of angles of a triangle is 180°

⇒ 16° + 16° + ∠C = 180°

⇒ ∠C = 180 - 32 = 148°

6 0
4 years ago
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