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Sati [7]
3 years ago
12

Expressions are equivalent to 4 ( 3 j + ( − 4 ) ) − 9

Mathematics
2 answers:
lions [1.4K]3 years ago
7 0

Answer:

12j - 25

Step-by-step explanation:

4(3j-4)-9

12j-16-9

12j-25

LenKa [72]3 years ago
3 0

Answer:

12j - 25

Step-by-step explanation:

I had the exact same question

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Write an equation of the line passing through point P(3,8) that is parallel to the line y
aniked [119]

Answer:

y=1/5(x+37)

Step-by-step explanation:

y=1/5x+4/5

Plug in the (3,8)

8=1/5(3)+b

8=3/5+b

7 2/5=b

y=1/5(x+37)

5 0
3 years ago
Two friends share 1/3 of a pitcher of
Oxana [17]

Answer:

⅙ pitcher

Step-by-step explanation:

½ of ⅓ pitcher = ½ × ⅓ pitcher = ⅙ pitcher

7 0
3 years ago
Sin(x+20) - cos (2X+10)
Vladimir [108]

Answer:

X=20

Step-by-step explanation:

Sin(x+20)=cos(2x+10)

Sin(x+20)=sin(90-(2x+10)

X+20=90-2x-10

3x=60

X=20

8 0
3 years ago
Plz help with the math worth 21 points
irinina [24]

Answer:

As there is one math problem over there.

Lets see the question first:

It says that "A hair dryer is rated 1200\ W,if you use the dryer for 0.25\ h.How much electric energy do you use ?"

Final answer = Electic energy =0.3\ kW\ h

Step-by-step explanation:

Electrical Energy E=Power \times time.

The total amount of electrical energy used depends on the total power used by the electrical device and the total time they are used for.

So we have been given the power of the hair dryer =1200\ W =\frac{1200}{1000}=1.2\ kW

Now the time it has been use for =0.25\ hrs

To calculate electric energy we will multiply both the terms.

Electric energy =0.12 \times 0.25 =0.3\ kW\ h

So electric energy used for the hairdryer is =0.3\ kW\ h

7 0
3 years ago
I need help plz help me
Tresset [83]

Answer:

26

Step-by-step explanation:

Because DAC is a straight line we can equate that:

4x - 8 + 34 + 76 - x = 180

3x + 102 = 180

3x = 78

x = 26

5 0
3 years ago
Read 2 more answers
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