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Ira Lisetskai [31]
4 years ago
12

What is the constant in this expression? m-4n+3.5+4/5p

Mathematics
2 answers:
Komok [63]4 years ago
6 0

3.5 is the constant. A constant is a term that only consists of a number and doesn't have any variable next to it, basically a number that stands by itself. In this case 3.5 is the only constant, lone number, in the equation, so 3.5 would be the answer.

If you liked my answer, make sure to leave a Brainliest (:

Lisa [10]4 years ago
5 0

Answer:

3.5

Step-by-step explanation:

We are given that an expression

m-4n+3.5+\frac{4}{5}p

We have to find the constant in the given expression

Constant:That number which is numerical number and do not change remain same.

Variable : That number which is represented by letter x, y  etc and varying and do not remain  same.

In the given expression 3.5 is constant because 3.5  is fixed and do not change.

Hence, 3.5 is  constant.

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Solve. 7x -7 = 10. ​
mote1985 [20]

Answer:

x = 17/7 or 2.428571429

Step-by-step explanation:

7x - 7 = 10

→ Add 7 to both sides to isolate 7x

7x = 17

→ Divide both sides by 7 to isolate x

x = 17/7 or 2.428571429

5 0
3 years ago
Read 2 more answers
HELP ASAP PLEASE<br> Find the area of each figure.
liraira [26]

Answer: top triangle = 10 x 4 = 40cm^2 / 2 = 20cm^2

Rectangle = 10 x 6 = 60cm^2

Right hand triangle = 6 x 4 = 24cm^2 / 2 = 12cm^2

Step-by-step explanation:

For top triangle we do 10 - 6 to get shortest side

Rectangle - ignore 14 and use top 10 cm

Finally triangle on right hand - do 14cm - 10 to get base side. Base side is 4cm.

Formula for area of triangle = b x h / 2

Note: ^2 is just to the power of 2 or squared

I hope u found this answer beneficial.

Have a nice day and Christmas holidays m8 :-)

5 0
3 years ago
Find x.................
Mkey [24]
Two the smaller right angled triangles are similar. Therefore:
\dfrac{x}{3}=\dfrac{3}{2}\ \ \ |\cdot3\\\\x=\dfrac{9}{2}\\\\\boxed{x=4.5}

Answer: a) 4.5

8 0
3 years ago
Point A, located at (-11,17) on the coordinate plane, is reflected over the x-axis to form point B. Then point B is reflected ov
zalisa [80]

Answer:

  B = (-11, -17)

  C = (11, -17)

Step-by-step explanation:

Reflection over the x-axis is accomplished by changing the sign of the y-coordinate:

  (x, y) ⇒ (x, -y) . . . . . reflection over x-axis

Reflection over the y-axis is accomplished by changing the sign of the x-coordinate:

  (x, y) ⇒ (-x, y) . . . . . reflection over the y-axis

__

  B = (-11, -17)

  C = (11, -17)

__

<em>Check</em>

Reflection over both axes negates both coordinates. It is equivalent to reflection over the origin, or rotation 180°.

  A(-11, 17) ⇒ C(11, -17) . . . . . both coordinates change sign

3 0
3 years ago
Find and interpret a 95% confidence interval to estimate the average number of bolts per box for all boxes in the population. Ro
gayaneshka [121]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The 95% confidence interval is  49.85    < \mu < 54.15

This means that there is 95% chance that the true population mean is within this interval

Step-by-step explanation:

From the question we are told that

    The  sample size is n = 30  

    The sample mean is  \= x  =  52

    The population standard deviation is  \sigma =  6

Given that the confidence level is 95% then the level of confidence is evaluate as

             \alpha  =  100 -  95

            \alpha  =  5\%

            \alpha  =  0.05

Next we obtain the critical value of  \frac{\alpha }{2} from the normal distribution table , the values is

                 Z_{\frac{\alpha }{2} } =  1.96

Generally the margin of error is mathematically represented as

           E =  Z_{\frac{\alpha }{2} } *  \frac{\sigma }{\sqrt{n} }

substituting values

            E =  1.96  *  \frac{ 6 }{\sqrt{30} }

           E =  2.147

The  95% confidence interval is mathematically represented as

          \= x  - E  < \mu <  \= x  + E

substituting values

         52   - 2.147   < \mu <  52   +   2.147

         49.85    < \mu < 54.15

       

     

4 0
4 years ago
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