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3 years ago

Help me with this please Number 11,12,13,14,15,16,17,18,19,20

Mathematics

1 answer:

CaHeK987 [17]3 years ago

6 0

Answer:

13 )c

16) c

17) a

18 )d

20) 9x^2 +12

number 20. the answer is not in the option

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PLZ ANSWER<br><br> If y=2x-3 what is the value of x when y=1<br><br> -1<br> 1<br> -2<br> 2

topjm [15]

Answer:

first thing you gotta do is substitute x with -1 then you do the work first you gotta know your order of operation which is PEMDAS what that stands for is perentice exponent multiplication division addition and subtraction so then what you do first is 2*-1+3 2*-1=-2+3=1 and that is the answer you are WELCOME.

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Harris has r bottles. Donna has 60 more bottles

Tanya [424]

R+60= Donnas bottle number

8 0

3 years ago

Can someone help me with this problem

Naily [24]

<h3>Answer: Choice A</h3><h3>The point Z ' is at (8,4)</h3><h3>The point Y ' is at (0,4)</h3>

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Explanation:

The key thing here is that point Z does not move. Why not? Because this is where the center of dilation occurs. The center point is fixed. Everything around the center will expand away from, or contract toward, the center.

In this case, the scale factor is 4/5 = 0.8 which is less than 1. So points will contract toward the center. The old pre-image shrinks to make the image smaller.

Note how point Y = (-2,4) is 10 units away from point Z. You can count out the spaces or subtract the x coordinates. Use an absolute value to make sure the result is positive

|x1-x2| = |-2-8| = |-10| = 10

|x2-x1| = |8-(-2)| = |8+2| = |10| = 10

So 0.8 times this distance is therefore 0.8*10 = 8 meaning that point Y' is going to be 8 units away from point Z' or Z.

Subtract 8 from the x coordinate of point Z to get x-8 = 8-8 = 0.

The y coordinate stays the same at y = 4 the whole time.

----------------------------------------

In short, point Y starts at (-2,4) and moves to (0,4)

Distance from Y to Z is 10 units

Distance from Y' to Z' is 8 units

8/10 = 4/5 = 0.8 is the scale factor

Point Z does not move. So Z and Z' are at the same location.

5 0

3 years ago

Read 2 more answers

Please help me with question #6!!!

Bumek [7]

Previous balance:

+ $481,47→ 11/30
- $300,00 → 11/02
- $68,99 → 11 / 10
- $45,00 → 11/15
- $72,75 → 11/17
----------------------------
+ $481,47 - $113,26 =
+ $368,21

new balance:

+ $481,47→ 11/30
- $300,00 → 11/02
- $ $\diagup\!\!\!\! 68,\diagup\!\!\!\!99$ → 11 / 10 for -$58,99
- $45,00 → 11/15
- $ $\diagup\!\!\!\! 72,\diagup\!\!\!\!75$ → 11/17 for $ 0
-------------------------------------------------------------------------------------
+ $481,47 - $196,01 =
+$285,46

Answer:
$\boxed{+285,46}$

4 0

3 years ago

A kangaroo hops 2 kilometers in 3 minutes. At this rate how long does it take the kangaroo to travel 3 kilometers?

Anna007 [38]

Answer:

4 minutes 3 seconds

Step-by-step explanation:

Step one:

Given data

A kangaroo hops 2 kilometers in 3 minutes

The rate/speed is

rate/speed= 2/3 km per minute

Required

the time taken to cover 3 km

Step two:

We know that

rate= distance/time

2/3= 3/t

cross multiply we have

2t=3*3

2t=9

divide both sides by 2

t= 9/2

t= 4.5 minutes

t= 4 minutes 3 seconds

4 0

3 years ago

Help me with this please Number 11,12,13,14,15,16,17,18,19,20​

Help me with this please Number 11,12,13,14,15,16,17,18,19,20