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lisabon 2012 [21]
3 years ago
5

hello. I hope your day was fine and have some difficulties in the three question I just took a picture of please help me ​

Mathematics
1 answer:
goblinko [34]3 years ago
3 0
What do you wanna find in these questions?
You might be interested in
2−b/3=−5/2 what is b? Note: the / is a fraction separation
Rudik [331]

Answer:

I think that the answer is

b = 7

Here is the step-by-step solution.....

 See the attached files for the step-by-step solution...><><

7 0
3 years ago
Read 2 more answers
Which represents the solution(s) of the system of equations, y = –x2 + 6x + 16 and y = –4x + 37? Determine the solution set alge
masya89 [10]

Answer: c.(3, 25) and (7, 9)

y = –x^2 + 6x + 16 and y = –4x + 37

Plug in -4x+37 for y in first equation . It becomes

-x^2 + 6x + 16= -4x+37

Combine like terms. add 4x  and subtract 37 on both sides

-x^2 + 10x - 21=0

Divide the whole equation by -1 to remove negative sign from -x^2

x^2 - 10x + 21=0

Now factor the left hand side

(x-7)(x-3) = 0

x-7 =0  and x-3=0

x= 7  and x=3

Now we find out y using y = –4x + 37

when  x= 7 , then y=-4(7) +37 = 9

when x= 3, then y=-4(3) + 37 = 25

We write solution set as (x,y)

(7,9)  and (3,25) is our solution set


7 0
3 years ago
Read 2 more answers
What is the distributive property to writ 8(x + 1)
posledela

Answer:

8x + 8

Step-by-step explanation:

you have to distribute the 8 to everything inside the parentheses

8 times x

8 times 1

8x + 8

4 0
3 years ago
Read 2 more answers
Graphing this equation -x+4y=8
Keith_Richards [23]
The linear form of that equation is y=1/4x+2. Your y-intercept should be 2 and the slope is 1/4.

8 0
3 years ago
Explain why a triangle can't have two right angles​
Sedbober [7]

Answer: They would be a rectangle.

Step-by-step explanation:

2 right angles need at least 4 sides, making it impossible to have a 3-sided 2 right angle triangle.

8 0
3 years ago
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