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3 years ago

Someone can help me ?

Mathematics

2 answers:

Colt1911 [192]3 years ago

6 0

Answer:

$\frac{3}{2}$

k0ka [10]3 years ago

5 0

Step-by-step explanation:

I'm not sure how to answer this but try to put the "5's" in Fraction form as 5/1 and divide them with 15/2. Which would be 3/2

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Help me please and thank you

fiasKO [112]

Answer:

$51.70

Step-by-step explanation:

I don't know how to explain it actually so I am just going to do this...

y= 0.1(x + 20) +7

y=0.1x + 2 + 7

y=0.1x +9

y=0.1(427)+9

y=42.7+9

y=51.7

So, maybe the answer is $51.70.

7 0

3 years ago

(10 points) What type of slope does the line y = -3 have?

lakkis [162]

Answer: It has 0 slope.

Step-by-step explanation:

y= 0(x) -3 this is an equal equation of the line so the slope has to be always zero.

8 0

3 years ago

12+root of 35 divided by 2 + 12-2 root of 35 divided by 2

nadya68 [22]

So : $12+ \frac{\sqrt{35}}{2} + \frac{12-2 \sqrt{35} }{2}$ ?

First, you want to bring everything together on the top of the fraction.
12=24/2 so you can have $\frac{24+ \sqrt{35}+12-2 \sqrt{35} }{2}$

Add like terms -- 12 +24 = 36 $\sqrt{35}-2 \sqrt{35} = \sqrt{35}$

Now we are at $\frac{24+ \sqrt{35} }{2}$ Which is the lowest possible simplified version while remaining at exact value.

Feel free to check my math! I kinda did this off the top of my head.

8 0

3 years ago

The volume of cube is 343 cubic centimeters.What is the suface area of the cube

Ann [662]

The cube root of 343 is 7.
One side has an area of 7*7 = 49 square cm
There are 6 sides to a cube
6 * 49 is the surface area = 294

7 0

3 years ago

Find the area<br><br> length=x+10 width=2x+5 <br><br> explain/show your steps

LenKa [72]

2x^2 + 25x + 50 not sure about the steps

3 0

3 years ago