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2 years ago

(-3x) to the negative first power

Mathematics

1 answer:

vichka [17]2 years ago

3 0

Answer:

Step-by-step explanation:

okauy

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What are the solution(s) for the quadratic equation? Y=5x^2-9x+4 Show work

kakasveta [241]

Let's see

$\\ \rm\rightarrowtail 5x^2-9x+4=0$

$\\ \rm\rightarrowtail 5x^2-5x-4x+4=0$

$\\ \rm\rightarrowtail 5x(x-1)-4(x-1)=0$

$\\ \rm\rightarrowtail (5x-4)(x-1)=0$

$\\ \rm\rightarrowtail x=4/5,1$

8 0

2 years ago

An archaeologist is categorizing the artifacts he has discovered. Two-thirds of the artifacts are shards of pottery. One-eighth

Reika [66]

Answer:

Personal items=15

Step-by-step explanation:

We are given:

Total number of artifacts = 72.

We are told that 2/3 of total artifacts are shards of pottery.

$\text{Shards of pottery}=72*\frac{2}{3} =24*2=48$

We are also told that 1/8 of total artifacts are tools.

$\text{Tools}=72*\frac{1}{8}=9$

Now we will find out number of personal items by subtracting combined number of shards of pottery and tools from total number of artifacts.

$\text{ Personal items}=72-(48+9)$

$\text{ Personal items}=72-57=15$

Therefore, there are 15 personal items.

8 0

3 years ago

Helpppppppppppppppppppppp

Setler79 [48]

Answer:

EF=3.6

Step-by-step explanation:

I'm going to use Pythagorean Theorem for side EF.

4.8^2+EF^2=6^2

23.04+EF^2=36

-23.04 -23.04

EF^2=12.96

sqrt sqrt

EF=3.6

4 0

3 years ago

PLEASE HELP IM STRUGGLING!!!

Mnenie [13.5K]

Answer:

10. 0.99
11. -60
12. 5.5

Step-by-step explanation:

Use the slope formula:

m = (y2 - y1)/(x2 - x1)

10.

m = (6.24 - 3.27)/(5 - 2) = 2.97/3 = 0.99

11.

m = (240 - 360)/(3 - 1) = -120/2 = -60

12.

m = (8.84 - 6.09)/(7 - 2) = 2.75/5 = 5.5

6 0

3 years ago

Solve for x:2/5 (x - 2) = 4x

Helen [10]

Answer:

x= -2/9

Step-by-step explanation:

2(x-2)/5=4x

2(x-2)=4x*5

2(x-2)=20x

x-2=20x/2

x-2=10x

-2=10x-x

9x= -2

x= -2/9

7 0

2 years ago