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2 years ago

Help me plz!!!!!!!!!!!!!!!!

Mathematics

1 answer:

mixer [17]2 years ago

5 0

Answer:

Graph A

Step-by-step explanation:

-y=-2-3x

y=3x+2

Slope:3

y-intercept:2

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Evaluate: 5^-2 = O A. 10 O B. 25 O c. -10 O D. -25

Tomtit [17]

Answer:

It should be 1/25

Step-by-step explanation:

If you only have those answers then answer D

6 0

3 years ago

Solve the equation x^2-4x+85=0

lara [203]

Can't factor
use quadratic
for
ax^2+bx+c=0
x= $\frac{-b+/- \sqrt{b^2-4ac} }{2a}$

given
1x^2-4x+85=0
a=1
b=-4
c=85

x= $\frac{-(-4)+/- \sqrt{(-4)^2-4(1)(85)} }{2(1)}$
x= $\frac{4+/- \sqrt{16-340} }{2}$
x= $\frac{4+/- \sqrt{-324} }{2}$
x= $\frac{4+/- (\sqrt{-1})(\sqrt{324}) }{2}$
remember that √-1=i
x= $\frac{4+/- i(\sqrt{324}) }{2}$
x= $\frac{4+/- i(18) }{2}$
x=2+/-9i

x=2+9i or x=2-9i

3 0

3 years ago

If a industrial machine made 678 shirts if you make 3 shirts in one minute how many minutes are you working

Aleks04 [339]

You simply divide 678 by 3 and get 226.

7 0

4 years ago

Find the range of possible values for the following measurements, which were rounded to the nearest mm, tenth of m, and hundredt

zmey [24]

The required range of the data is 24mm

The range of data is the difference between the largest value and the least value in a set of data.

Since we are not given the range of data. Let's assume we gave the following data:

34mm, 30mm, 20mm, 44mm, 31mm

From the data

Highest measurement = 44mm

Least measurement = 20mm

Find the range

Range = Highest measurement - Least measurement

Range = 44mm - 20mm

Range = 24mm

Hence the required range of data is 24mm

NB: The concept can be applied to any set of data given for other measurements in (b) and (c)

Learn more here: brainly.com/question/1786006

6 0

3 years ago

4-9x= -14 solve the inequality.

polet [3.4K]

4 - 9x = -14
4 - 4 - 9x = -14 - 4
9/9x = -18/9
x = -2

6 0

3 years ago