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3 years ago

Consider the quadratic function f(x)= 2(x + 4)² − 6. What is the vertex of the parabola? *

Mathematics

2 answers:

Masja [62]3 years ago

4 0

Answer:

vertex is (-4,-6)

Step-by-step explanation:

put x+4=0

x=-4

when x=-4

f(x)=-6

balu736 [363]3 years ago

3 0

Answer:

(-4,-6)

Step-by-step explanation:

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What is 7 x 10^22 in its expanded form?

sammy [17]

Answer:

70,000,000,000,000,000,000,000

Step-by-step explanation:

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3 years ago

Brainliest!!! Answer quick

solong [7]

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Step-by-step explanation: I dunno how to explain this. Its really easy. Always have the converting unit on the denominator

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3 years ago

Nilda owes $250 to a friend but has been earning $25 per week to catch up and start saving. Karla has saved $200 and has been sa

Nana76 [90]

Answer:

22 and a half weeks

Step-by-step explanation:

We are told that Nilda owes $250 and has been earning $25 per week to catch up and start saving.

Also, Karla has saved $200 and has been saving an extra $5 per week to slowly build her savings.

Let the number of weeks they save for be represented as x.

Therefore, for them to have the same amount of money after x weeks,

25x - 250 = 200 + 5x

The left hand side represents Nilda's situation (250 is being deducted because she owes $250) while the right hand side represents Karla's situation (the 200 is added because she already owns $200).

Solving for x:

25x - 250 = 200 + 5x

Collecting like terms:

25x - 5x = 250 + 200

20x = 450

x = 450 / 20 = 22.5 weeks

Hence, they would both need to save for 22 and a half weeks to have the same amount of money.

7 0

3 years ago

At a game booth, a student gets a box of candy as the prize for winning a game. The boxes come in four colors: white, red, green

Novay_Z [31]

Answer:

Your answer is:

10 over 40 plus 9 over 39 or C

This is because there are 40 boxes in total. The chance of a white box being handed out is 10/40. If a white box is handed out as a prize, there are going to be 39 boxes left, but only 9 of those 39 boxes would be white.

Ideally, tree diagrams should be used to solve such problems.

4 0

3 years ago

Cody bought 2 pair of gloves and 4 hats for $43. Tori bought 2 pairs of gloves and 2 hats. Find the prices of the gloves and hat

Nuetrik [128]

Question:

At a sale on winter clothing, Cody bought two pairs of gloves and four hats for $43.00. Tori bought two pairs of gloves and two hats for $30.00. What were the prices for the gloves and hats?

Answer:

Price of one pair of gloves is $ 8.5 and price of 1 hat is $ 6.5

Solution:

Let "g" be the price of one pair of gloves

Let "h" be the price of 1 hat

Cody bought 2 pair of gloves and 4 hats for $43

Therefore, we frame a equation as:

2 x price of one pair of gloves + 4 x price of 1 hat = 43

$2 \times g + 4 \times h = 43$

2g + 4h = 43 ----------- eqn 1

Tori bought two pairs of gloves and two hats for $30.00

Therefore, we frame a equation as:

2 x price of one pair of gloves + 2 x price of 1 hat = 30

$2 \times g + 2 \times h = 30$

2g + 2h = 30

Divide by 2

g + h = 15

g = 15 - h ----------- eqn 2

Let us solve eqn 1 and eqn 2

Substitute eqn 2 in eqn 1

2(15 - h) + 4h = 43

30 - 2h + 4h = 43

2h = 43 - 30

2h = 13

Substitute h = 6.5 in eqn 2

g = 15 - 6.5

Thus price of one pair of gloves is $ 8.5 and price of 1 hat is $ 6.5

6 0

3 years ago