All categories

3 years ago

Help i still dont understand

Mathematics

1 answer:

VladimirAG [237]3 years ago

4 0

Answer:

1. c

2. a

3. d

4. b

Step-by-step explanation:

For 1, use parchment paper for rotating it around the origin.

For 2, just make the y value positive.

For 3, add 13 to the y value.

For 4, use process of elimination with the answer choices.

(I know right, horrible explanation but you wanted the answers right?)

You might be interested in

Antwan determines the distance between the points –7 and 2 on a numberline. Maggie determines the difference between the numbers

Orlov [11]

Answer:

Their solutions are related because they both are |9| (the absolute value of 9)

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

The junior and senior students at Mathville High School are going to present an exciting musical entitled, "Math, What is it Goo

xeze [42]

Some parts are missing in the queston. Find attached the picture with the complete question

Answer:

$\large\boxed{\large\boxed{161}}$

Explanation:

Let's put the information in a table step-by step.

(number of remaining students)

Juniors Seniors

Condition

Initially J S

15 seniors left S - 15

Twice juniors as seniors 2(S - 15)

3/4 of the juniors left 1/4×2(S - 15)
1/3 of seniors left 2/3×(S - 15)

At the end, there were 8 more seniors than juniors:

2/3×(S - 15) - 1/4×2(S - 15) = 8

Now you have obtained one equation, which you can solve to find S, the number of senior students, and then the number of junior students.

Solve the equation:

$2/3\times (S - 15) - 1/4\times 2(S - 15) = 8$

Mutilply all by 12:

$8(S - 15)-6(S - 15)=96$

Distribution property:

$8S-120-6S-90=96$

Addtion property of equalities:

$8S-6S=96+120+90$

Add like terms:

$2S=306$

Division property of equalities:

$S=306/2=153$

That is the number of senior students that came out to the information meeting, but the number of students remaining to perform in the school musical is (from the table above):

$2/3\times (S-15)+1/4\times 2(S-15)$

Just substitute S with 153 fo find the number of students that remained to perfom in the musical:

$2/3\times (153-15)+1/4\times 2(153-15)\\ \\ 2/3(138)+1/2(138)$

$161$

5 0

3 years ago

Kyle has a total of 16 coins in his pocket. All the coins are nickels or quarters, and they have a total value of $2.20. How man

kari74 [83]

44 nickels because you just add 5 intill you get 220

7 0

3 years ago

Read 2 more answers

Factor -1/3 out of -1/3x-12

strojnjashka [21]

$-\frac{1}{3}x-12\ \ \ | put\ -\frac{1}{3}\ in\ front\ of\ the\ bracket\\\\
-\frac{1}{3}(x+36)\\\\
Solution\ is\ -\frac{1}{3}(x+36)$

5 0

3 years ago

Surface area of a half pipe if it is 7m

Monica [59]

Answer:

Radius = 2.5 m Length = 7 m Half cylinder formula- ½ (pi r^2) + (2 pi R h) Pi x 2.5^2 + 2 x pi x 2.5 x 7

129.5906969 x .5 = 64.795348 m^2 The surface area of the half pipe is 65 m^2.

7 0

3 years ago

Read 2 more answers