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Rus_ich [418]
3 years ago
8

25 POINTS

Mathematics
2 answers:
valentina_108 [34]3 years ago
8 0

Answer:

The answer is D

Step-by-step explanation:

We are going to try all the answers on the choices to find the right choice.

<u>Choice A:</u>

We will start with 0:

-(5*0)/4+90=90

That is correct lets try 16:

-(5*16)/4+90=70

It can be seen that choice A is incorrect.

<u>Choice B:</u>

We tried 0 in above and it gave 90. So, we will start with 40:

-(3*40)/8+75=60

It can be seen that choice B is incorrect.

<u>Choice C:</u>

We tried 40 in above and the function gave 60.

It can be seen that choice C is also incorrect.

<u>Choice D:</u>

We tried 40 in above and the function gave 60. Therefore, we will start with 160:

-(3*160)/8+75=15

Lets try the last number 200:

-(3*200)/8+75=0

It can be seen that choice D is correct.

alisha [4.7K]3 years ago
7 0
Substitute the values of x from each table and see which values fit 

For example in table d  when x = 40 y = (-3/8)*40 + 75  =  60    which is the result  given in table d

The other 2 values also fit  table d

Answer is table d.
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I'm confused<br>What is the answer?​
forsale [732]

If <em>c</em> > 0, then <em>f(x</em> - <em>c)</em> is a shift of <em>f(x)</em> by <em>c</em> units to the right, and <em>f(x</em> + <em>c)</em> is a shift by <em>c</em> units to the left.

If <em>d</em> > 0, then <em>f(x)</em> - <em>d</em> is a shift by <em>d</em> units downward, and <em>f(x)</em> + <em>d</em> is a shift by <em>d</em> units upward.

Let <em>g(x)</em> = <em>x</em>. Then <em>f(x)</em> = <em>g(x</em> + <em>a)</em> - <em>b</em> = (<em>x</em> + <em>a</em>) - <em>b</em>. So to get <em>g(x)</em>, we translate <em>f(x)</em> to the left by <em>a</em> units, and down by <em>b</em> units.

Note that we can also interpret the translation as

• a shift upward of <em>a</em> - <em>b</em> units, since

(<em>x</em> + <em>a</em>) - <em>b</em> = <em>x</em> + (<em>a</em> - <em>b</em>)

• a shift <em>b</em> units to the right and <em>a</em> units upward, since

(<em>x</em> + <em>a</em>) - <em>b</em> = <em>x</em> + (<em>a</em> - <em>b</em>) = <em>x</em> + (- <em>b</em> + <em>a</em>) = (<em>x</em> - <em>b</em>) + <em>a</em>.

6 0
2 years ago
The sum of Eric’s and Bob’s weights is 9 times the difference of their weights. The positive difference of their weights is also
Pie

Answer:

<u>150</u>

Step-by-step explanation:

So I will shorten Eric, and Bob's names as E, and B.

So the equations are this

B-E = B+E - 240, E as Eric, and B as Bob, and this E+B=9(E-B)

Move the variables and you get

-2E =- 240

Just divide them both by -2

and E=120

So when we know the value of E we can just plug it into the 1st question

120+B=9B+1080

Moves the Variables and numbers to the other side

8B=1200

1200/8= 150

B=150

There is Bob's weight

6 0
2 years ago
Explain how to use the combine values strategy to find 223-119
stich3 [128]
223
-119
104
In stead of doing 3-9 and 2-1 do 23-19 then 2-1
6 0
2 years ago
Q(3x)=12x+2 then what is Q(x-2)
Mandarinka [93]

Answer:

it's ax+b form answer is Q(x-2)=4x-6

Step-by-step explanation:

ax+b=Q(x),Q(x-2)=a(x-2)+2

Q(3x)=a(3x)+b=12x+2, 3a=12 =>a=4,b=2

the original q of x is 4x+2

Q of x-2 =4(x-2)+2=4x-8+2=4x-6

8 0
2 years ago
Varies inversely as If x = 6 then y = 8. Find y when x = 4 .<br> Y=
icang [17]

Answer:

Explanation:

The statement is expressed as

y

∝

1

x

inverse means

1

variable

To convert to an equation introduce k, the constant of variation.

y

=

k

×

1

x

⇒

y

=

k

x

To find k use the given condition that y = 8 when x = 4

8

=

k

4

⇒

k

=

4

×

8

=

32

⇒

equation is

¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

∣

∣

∣

2

2

y

=

32

x

2

2

∣

∣

∣

−−−−−−−−−−−−

x

=

16

→

y

=

32

16

⇒

y

=

2

when

x

=

16

8 0
2 years ago
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