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3 years ago

Select the correct answer.

Mathematics

2 answers:

Ghella [55]3 years ago

8 0

Answer:x-5

Step-by-step explanation:

creativ13 [48]3 years ago

6 0

Answer:

I took the test and it is not -5. I don'tknow what it is though

Step-by-step explanation:

You might be interested in

The punch bowl at felicia's party is getting low so she adds 12 cups of punch to the bowl two guests serve themselves 1.25 cups

Eduardwww [97]

2.75 cups were in the punch bowl before felicia refilled it .

<u>Step-by-step explanation:</u>

Here we have , the punch bowl at felicia's party is getting low so she adds 12 cups of punch to the bowl two guests serve themselves 1.25 cups and 2 cups and 2 cups of punch the punch bowl now contains 11.5 cups of punch . We need to find how many cups were in the punch bowl before felicia refilled it let n=number of cups bowl before felicia refilled it. Let's find out:

Initially we have , n number of cups of punch ! Than 12 additional cups were added , given below is the equation framed for the number of cups present:

⇒ $n+12$

Now , After this 1.25 and 2 cups were served by guests themselves and remaining cups were 11.5 i.e.

⇒ $11.5+1.25+2$

⇒ $14.75$

Equating both we get :

⇒ $n+12=14.75$

⇒ $n=14.75-12$

⇒ $n=2.75$

Therefore , 2.75 cups were in the punch bowl before felicia refilled it .

6 0

3 years ago

Wes mixed different juices to make fruit punch. He filled one-half of the punch bowl with orange juice. Then he filled half of t

Vinvika [58]

Answer:

1.2Litres

Question:

Wes mixed different juices to make fruit punch. He filled one-half of the punch bowl with orange juice. Then he filled half of the remaining space with grape juice. Finally, he filled the rest of the punch bowl with 300 mL300\text{ mL}300 mL300, space, m, L of cherry juice. How many liters of fruit punch did Wes make?

Step-by-step explanation:

Let the total punch bowl be = P

Portion of Orange juice = ½ of total punch bowl

= ½ × P = P/2

Portion of grape = ½ of the remaining space

Remaining space = P - P/2 = P/2

Portion of grape = ½ × P/2 = P/4

The rest of the punch bowl is for cherry = 300mL

P/2 - P/4 = 300

(2P - P)/4 = 300

P/4 = 300

P = 300×4

P = 1200mL

1mL = 10^(-3)L

P = 1.2 ×10³ × 10^(-3)L

P = 1.2L

Wes made 1.2liters of fruit punch.

3 0

4 years ago

I am extremely confused, can anyone help?

JulijaS [17]

Answer:

So I did most of you table for you:

First blank:4

Second blank:-4

Third blank:-8

Fourth blank: Left to you: Just plug in 6 into 1/2x^2-5x+4 (I will check)

Fifth blank: Left to you: Just plug in 8 into 1/2x^2-5x+4 (I will check)

The graph is D.

Step-by-step explanation:

So they have a table to fill in and they tell you in the first row what they want you to plug in

So the table is asking us to answer this:

What is h(0),h(2),h(4),h(6), and h(8).

h(0) means to replace x with 0 in $\frac{1}{2} x^2-5x+4$ .

$\frac{1}{2}(0)^2-5(0)+4$

$0-0+4$

$0+4$

$4$

So the first blank is 4 since h(0)=4.

h(2) means to replace x with 2 in $\frac{1}{2} x^2-5x+4$ .

$\frac{1}{2} (2)^2-5(2)+4$

$\frac{1}{2} (4)-10+4$

$2-10+4$

$-8+4$

$-4$

So the second blank is -4 since h(2)=-4.

h(4) means to replace x with 4 in $\frac{1}{2} x^2-5x+4$ .

$\frac{1}{2}(4)^2-5(4)+4$

$\frac{1}{2}(16)-20+4$

$8-20+4$

$-12+4$

$-8$

So the third blank is -8 since h(4)=-8

Maybe you can try the last 2 blanks in the table part. That is try computing h(6) and h(8). I will check it for you.

Now the points I have so far are (0,4) from the h(0)=4, (2,-4) from the h(2)=-4, and (4,-8) from the h(4)=-8.

I'm looking for a graph that goes through these points (0,4) , (2,-4) , and (4,-8).

By the way the only graphs that are worth looking at is C and D because they are open up. I know my curve for h(x)=1/2x^2-5x+4 should be a parabola open up because 1/2 is positive and 1/2 is the coefficient of x^2.

So Graph C has y-intercept (0,10) not (0,4) so Graph C is not right.

Graph D has y-intercept (0,4). It also goes through (2,-4) and (4,-8).

I don't know if you notice but the x-axis and y-axis are going up by two's in each graph.

7 0

3 years ago

I am very confused - please help! thx

Ira Lisetskai [31]

The answer here should be C

7 0

3 years ago

Read 2 more answers

Dakota built a wall with bricks like this one:

Viktor [21]

I have attached a screenshot with the complete question

Part (1):
We are given the prototype used for building the wall with the following dimensions:
long side = 8 in
short side = 5 in
Now, in the wall itself, we want to find the value of the length "a".
This length represents the short side in the prototype used in building the wall.
Therefore:
a = 5 in

Part (2):
We are given the prototype used for building the wall with the following dimensions:
long side = 8 in
short side = 5 in
Now, in the wall itself, we want to find the value of the length "b".
This length represents the long side in the prototype used in building the wall.
Therefore:
b = 8 in

Part (3):
Looking at Dakota's wall, we can note that its height is formed from three bricks each having the height "b". We have deduced previously that b = 8 in.
Therefore:
height of wall = 3 * b
height of wall = 3 * 8 = 24 in

Part (4):
Looking at Dakota's wall, we can note that its length is formed from nine bricks each having a length "a". We have deduced previously that a = 5 in.
Therefore:
length of wall = 9 * a
length of wall = 9 * 5 = 45 in

Hope this helps :)

7 0

3 years ago