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Reptile [31]
2 years ago
6

Find the value of b help me please

Mathematics
2 answers:
raketka [301]2 years ago
8 0

Answer:

sqrt(2)

Step-by-step explanation:

slava [35]2 years ago
4 0

Answer:

b =  \sqrt{2}

Step-by-step explanation:

\cos \: 60 \degree =  \frac{b}{2 \sqrt{2} }  \\  \\  \frac{1}{2} =  \frac{b}{2 \sqrt{2} }  \\  \\b =  \frac{2 \sqrt{2} }{2}  \\  \\ b =  \sqrt{2}

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Will give Brainlest and I please be accurate
joja [24]

Answer:

55.04 m 2

Step-by-step explanation:

I am 100% sure this is right.

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5 0
3 years ago
Read 2 more answers
Eight times a number plus five another number is -13. The sum of the two numbers is 1. What are the numbers?
Pani-rosa [81]
Eight *(a number) plus 5*(another number) is -13.

translates to:

8(x) + 5(y) = -13

The sum of (the number) and (the other number) is 1.

translates to:

(x) + (y) = 1


We have a system of two equations involving two unknowns: x and y.

\rm 8x+5y=-13\\
~~x+~~y=~~~~1

We can easily solve the system using Substitution or Elimination. Let's use Elimination this time.

We'll multiply the second equation by -8 so that the x's match up.

\rm ~~~8x+5y=-13\\ -8x-8y=-8

When we add the equations together, the x's will fall out of the equation, summing to zero. The 5y and -8y will sum to -3y and the right hand side will sum to -21.

\rm -3y=-21

Divide by -3,

\rm y=7

Plug back into one of your original equations to find the value of x,

\rm x+y=1\\
x+7=1

Subtract 7,

\rm x=-6
8 0
3 years ago
Please answer this correctly
Andrej [43]
I believe the answer is 120. 3 5/6 turns into 3.833 when turned into a decimal. 3.833 would round up to 4 which is the nearest whole number. 34 3/7 would turn into 34.4285 as a decimal which turns into 30 when rounded to the nearest ten.
4 0
2 years ago
Could someone pls tell me the answer Thankss
Anni [7]
I think 10,000 not sure though
7 0
3 years ago
If u = 8 + 4i and v = 3i + 6, then what is u – v?
lozanna [386]
u=8+4i\ and\ v=31+6\\\\u-v=(8+4i)-(3i+6)=8+4i-3i-6=(8-6)+(4i-3i)\\\\\huge\boxed{=2+i}\leftarrow \boxed{d}
7 0
3 years ago
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