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sashaice [31]
3 years ago
5

Solve for x. x2 + 7x + 10 = 0

Mathematics
1 answer:
Troyanec [42]3 years ago
6 0

Answer:

x = -2, -5.

Step-by-step explanation:

x^2 + 7x + 10 = 0

Note that 2*5 = 10 and 2 + 5 = 7 so the factors are:

(x + 2)(x + 5) = 0

x + 2 = 0 gives x = -2

x + 5 = 0 gives x = -5.

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How many squares are in this figure in all?
Tanya [424]

Answer:

explanation

Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
which ordered pairs are a solution to the question y=8× select all that apply (-1,-7)(2,16)(1,8)(-2,-6)​
abruzzese [7]

Answer:

(2,16) , (1, 8)

Step-by-step explanation:

(-1,-7), x = -1 and y = -7

plug in

y = 8x

-7 = 8 * -1

-7 = -8, false

(2,16), x=2 and y = 16

plug in

y= 8x

16 = 8 * 2

16 = 16, so it is a solution

(1,8), x = 1 and y = 8

plug in

y = 8x

8 = 8 * 1

8 =8 , so it is a solution

(-2,-6), x = -2, y = -6

plug in

y = 8x

-6 = -2 * 8

-6 = -16, false

6 0
3 years ago
on the last period our teacher had 1/2of an eraser left she gave 2 students equally how much of the eraser did every student tak
myrzilka [38]

Answer: each of the students took 1/4 of an eraser home.

Step-by-step explanation:

On the last period our teacher had 1/2 of an eraser left. She gave it equally to 2 students. This means that the amount of eraser that each student takes home would be

(1/2)/2 = 1/2 × 1/2 = 1/4 of an eraser. Converting to decimal, it becomes 0.25 of an eraser.

8 0
3 years ago
If 35% of a number is 98 and 60% of the same number is 168, find 95% of that number
wel

Answer:

266

Step-by-step explanation:

Based on the given conditions, formulate: 98+168

Calculate the sum or difference:266

Therefore Correct Answer = 266

[RevyBreeze]

5 0
2 years ago
The sum of two consecutive even numbers is eighteen.
Scilla [17]

Answer:

8 and 10

Step-by-step explanation:

8+10=18

Both are even, and consecutive

5 0
2 years ago
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