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dybincka [34]
2 years ago
11

Solve by factoring x^2 + 8x =9

Mathematics
1 answer:
Helen [10]2 years ago
6 0

Answer:

x=-9,\:x=1

Step-by-step explanation:

x^2+8x=9\\x^2+8x-9=0\\(x+9)(x-1)=0\\x=-9,\:x=1

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Un<br>and<br>simplify<br>the first the​
Gnoma [55]

Step-by-step explanation: what is the question

3 0
3 years ago
There are 35 students in a drama club two out of every five boys in the club are boys how much diamonds in the club are boys
andrew11 [14]

Given:

Number of students = 35

Two out of every five boys in the club are boys.

To find:

The number of students in the club that are boys.

Solution:

Two out of every five boys in the club are boys. It means, the ratio of boys to the total number of student is 2:5.

Let the number of boys be 2x and number of students be 5x.

According to the question,

5x=35

x=7

Now, the number of boys is

2x=2(7)

2x=14

Therefore, 14 students in the club are boys.

8 0
3 years ago
300 x 400 = 1200 the same as 3 x 4 = 12
ELEN [110]

Answer:

3x4=12 is 300x400=1200 but it is not multiplied by 100

Step-by-step explanation:

4 0
3 years ago
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Monica [59]

Answer:

I wanna say the first picture second answer choice. Please tell me if I am right.

Step-by-step explanation:

7 0
3 years ago
Find the length of the third side to the nearest tenth 6 and 9
oee [108]

Hello, i do believe that you are asking me to do pythagorean theorem.

I'm not too sure if we are solving hypotenuse or a/b so i'll do both.

\boxed{\underline{Hypotenuse...}}\\\\\\A^2+B^2=C^2\\6^2+9^2=C^2\;\\36+81=117

\sqrt{117}=10.816\\Round-\;10.8

\boxed{\underline{a/b...}}\\\\\\A^2=C^2-B^2\\A^2=9^2-6^2\\A^2=81-36\\A^2=45\\\sqrt{45}= 6.708\\Round-\;6.7

Hope it helps!

6 0
3 years ago
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