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Cerrena [4.2K]
3 years ago
9

Hey sisters i need help with this question

Mathematics
2 answers:
Digiron [165]3 years ago
6 0
The answer is 9.6×10^7
Allisa [31]3 years ago
5 0

3.2 \times 10^{7} + 6.4 \times 10^{7} = (3.2 + 6.4) \times 10^7 = 9.6 \times 10^7

Answer: B


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There are
Andrew [12]

Answer:

40%

Step-by-step explanation:

If there are 1200 students in the school and 720 of them are boys that means 480 of them are girls.

I like to do cross multiply and divide so the equation for that would be  480/120 = ?/100

if you cross and multiply 480 by 100 you will get 48000 then if you divide that by 1200 you will get 40 as your missing value.

Im basically just saying 480/1200 = 40%

If you need further help there are plenty of you tube videos on how to cross  multiply and divide

Hope this helps

- Please mark brainliest :)

8 0
2 years ago
What is the vertex form of 2x^2+10x-5
Nataly_w [17]
<span><span>Two Solutions
1. x =(10-√140)/4=(5-√<span> 35 </span>)/2= -0.458</span><span> 

2. x =(10+√140)/4=(5+√<span> 35 </span>)/2= 5.458</span></span>
7 0
3 years ago
At most, how many unique roots will a third-degree polynomial function have?
beks73 [17]

The fundamental theorem of algebra states that a polynomial with degree n has at most n solutions. The "at most" depends on the fact that the solutions might not all be real number.

In fact, if you use complex number, then a polynomial with degree n has exactly n roots.

So, in particular, a third-degree polynomial can have at most 3 roots.

In fact, in general, if the polynomial p(x) has solutions x_1,\ x_2,\ldots x_n, then you can factor it as

p(x) = (x-x_1)(x-x_2)\ldots (x-x_n)

So, a third-degree polynomial can't have 4 (or more) solutions, because otherwise you could write it as

p(x)=(x-x_1)(x-x_2)(x-x_3)(x-x_4)

But this is a fourth-degree polynomial.

7 0
3 years ago
The area in square feet of a rectangular field is x²-110x+3000. The​ width, in​ feet, is x−50. What is the​ length, in​ feet?
ioda

x-60 is the length. Multiply you get x2-110x=3000 this is a quadratic equation.

7 0
3 years ago
One angle of an isosceles triangle measures 90°. Which other angles could be in that isosceles triangle? Choose all that apply.
bonufazy [111]

Answer:

45°

Step-by-step explanation:

(180-90)/2 = 90/2 = 45°

7 0
2 years ago
Read 2 more answers
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