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Gennadij [26K]
3 years ago
7

Factor the expression. -x^2+3x+40

Mathematics
1 answer:
olga nikolaevna [1]3 years ago
8 0
I hope this helps you

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108 - 271 + 215-_____= -103
kupik [55]
108-271+215-_____=-103
Im going to combine the first thee numbers and replace the blank with a variable, lets use x. 
52 - x=-103
now I am going to subtract 52 on both sides to get the variable alone
-x=-155
Im going to multiply both sides to eliminate the negitive in the variable
x=155
If you want to check just plug 155 into the blank
108-271+215-155=-103
-163+215-155=-103
52-155=-103
-103=-103

so after checking work the blank is equal to 155.


5 0
4 years ago
7.
Svetlanka [38]

Answer:

D. y ≥ 2x – 2

Step-by-step explanation:

Graph the inequality by finding the boundary line, then shading the appropriate area.

y ≥ 2 x + 2

Graph the inequality by finding the boundary line, then shading the appropriate area.

y ≥ − 2 x + 2

Graph the inequality by finding the boundary line, then shading the appropriate area.

y ≤ 2 x − 2

Graph the inequality by finding the boundary line, then shading the appropriate area.

y ≥ 2 x − 2

5 0
3 years ago
Solve for x. 50 = x^2 Show your work.
Tanzania [10]

50 = x^2

To isolate x you need to do the opposite of an exponent, which would be square root.

\sqrt{50} = x Next solve what the square root of 50 is[tex]5\sqrt{2} = x

That is the exact form, in other words your answer, if teacher is looking for a decimal, it would be

7.07 = x

6 0
3 years ago
Read 2 more answers
A tiling company completes two jobs. The first job has $1200 in labor expenses for 40 hours worked, while the second job has $15
artcher [175]
The closest i can think of that makes since is 1560=30(52)+b, mainly because
30 x 52 = 1560 so that's what i think it is and if im wrong sry.
3 0
3 years ago
Read 2 more answers
WILL MARK BRAINLIEST
alexandr1967 [171]

Answer:

Equation: 7x - 23 = 25 + x

Solution: x = 8

Step-by-step explanation:

7x - 23 = 25 + x

1. Subtract 25 from both sides:

7x - 23 - 25 = 25 - 25 + x

7x - 48 = x

2. Subtract 7x from both sides to get x on one side:

7x - 7x - 48 = x - 7x

- 48 = -6x

3. Divide both sides by -6 to get x by itself:

8 = x

8 is the solution

4 0
3 years ago
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