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vaieri [72.5K]
3 years ago
9

Simplify the expression . 7th grade pre algebra class ap

Mathematics
2 answers:
aniked [119]3 years ago
8 0

Answer:

Step-by-step explanation:

12 is the answer

lesya [120]3 years ago
7 0

Answer:tbh, that's impossible

Step-by-step explanation:

You might be interested in
What is the solution of the equation x2 + 8x + 5 = 0?
Setler79 [48]

Answer:

x = -0.683 (3dp)

x = -7.317 (3dp)

Step-by-step explanation:

<u>Step 1: Apply the quadratic formula</u>

(-b±(\sqrt{b^{2}-4ac})) / 2a

a = 1 <em>(x²)</em>

b = 8 <em>(8x)</em>

c = 5 <em>(5)</em>

(-8±(\sqrt{8^{2}-4 x 1 x 5})) / 2 x 1

<u>Step 2: Simplify</u>

(-8±(\sqrt{44})) / 2

<u>Step 3: Solve</u>

You need to replace the ± with first a + and then a -.

(-8+(\sqrt{44})) / 2 = -0.683 (3dp) = x

(-8-(\sqrt{44})) / 2 = -7.317 (3dp) = x

Hope this helps!

5 0
3 years ago
25 POINTS PLZ ANSWER!!!!!!!!!!!!!!!!!!!!!!!!!!
Tatiana [17]
The answer is c!!!!!!!
4 0
3 years ago
Read 2 more answers
Q1- Write 46 821 correct to the nearest 100
noname [10]

Answer:

46800

Step-by-step explanation:

46821 nearest 100s

look for the tens it is less than 5 so its 800 and the numbers written before the 100s would remain the same

8 0
3 years ago
Need help asap!! Tysmm
Levart [38]

Answer:

1) 9x-4

Step-by-step explanation:

7x+2x= 9x

-8+4= -4

9x-4

8 0
3 years ago
Read 2 more answers
Secant jkl and jmn are drawn to circle o from an external point ,j. if jk=8,lk=4 and jm=6 what is the length of jn answer
Archy [21]
See the picture attached to better understand the problem

we know that
If two secant segments are drawn to a <span>circle </span><span>from an exterior point, then the product of the measures of one secant segment and its external secant segment is equal to the product of the measures of the other secant segment and its external secant segment.
</span>so
jl*jk=jn*jm------> jn=jl*jk/jm

we have
<span>jk=8,lk=4 and jm=6
</span>jl=8+4----> 12

jn=jl*jk/jm-----> jn=12*8/6----> jn=16

the answer is
jn=16

6 0
3 years ago
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