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4 years ago

Question part points submissions used find a ·

Mathematics

1 answer:

ser-zykov [4K]4 years ago

4 0

Consider, pls, the suggested option:
1. formula is: a*b=|a||b|cos(ab);
2. a*b=40*60*cos135°=2400/√2 (≈1697,0563).

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PLSSSSSSSSSSSSSSSSSSSSSSSSSS ANSWER THIS

postnew [5]

Step-by-step explanation:

$(a.y^{3} +3y^{2} -3 ) = (ay^{2} +(4a+3)y +4(4a+3))(y-4) +64a+45$

so A = 64a +45

( $2y^{3} -5y+a =(2y^{2} +8y +27)(y-4) +108 +a$

so B = 108 +a

2A-B=0--> 2(64a+45)-108-a=0--> a =18/127

7 0

3 years ago

Josslyn has nickels and dimes in her pocket. The number of nickels is three more than seven times the number of dimes let d repr

vfiekz [6]

$7d+3$ Explanation

to solve this we need to translate into math terms, so

Step 1

a) let d represents the number of dimes

let n represents the number of nickles

re write the expressions

$\begin{gathered} number\text{ of dimes=d} \\ seven\text{ times the number of dimes = 7d} \\ \end{gathered}$

The number of nickels is three more than seven times the number of dimes in other words you have to add 7 to seven times the number of dimes to obtain the number of nickles

hence

$n=7d+3$

therefore , the expression for the number of nickles is

$7d+3$

I hope this helps you

3 0

1 year ago

andy is scuba diving he starts at sea level and then descends 10 feet in 2 1/2 minutes. how would you represent andy’s descent a

UNO [17]

Answer:

4 feet/minute

explanation:

The rate of descent = (10 feet)/(2.5 mn) = 4 ft/min

6 0

3 years ago

A={b,l,o,u,s,e} and U={a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z}.

antoniya [11.8K]

Answer:

oof

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

What is the answer????

Vinil7 [7]

Answer:

C. Parallelogram and rectangle

Step-by-step explanation:

If it was a square...all the sides would be the same, so it cannot be a square, therefore it is not A or B

3 0

3 years ago

Read 2 more answers