please help, I dont know where to start​

Answer:

Should be the 2nd choice.

Answer: 5-lb bag for $12.99

Step-by-step explanation: I multiplied 2 x 2.5 and 5.39 x 2.5. It was more than $12.99. This means that the 5 pound bag is less expensive.

Answer:

Gregory is 11yrs old

Step-by-step explanation:

If you count down from 15 to 4 you get to the number 11 so if Gregory is 11 yrs then that means his brother is 7 yrs old.

Answer:x = 4

Step-by-step explanation:

[tex]f(x) = -(3x + 9) - 13\\f(-5) = -(3 \cdot (-5) + 9) - 13\\= -(-15 + 9) - 13\\= -(-6) - 13\\= 6 - 13\\= - 7[/tex]

Answer:

I would love to answer you questions

Step-by-step explanation:

But may you please specify or is this a joke?

Grammar please fix

"Mia may want account answers"

If that's your question, what could I help you with

Answer:

$16

Step-by-step explanation:

She spends half of her weekly allowance.

She earns $4.

12-4=8.

8 is half of what she originally had. 8 times two is 16, her weekly allowance

Answer:

$16

Step-by-step explanation:

let x=Imari's allowance

12-4=1/2x

1/2x=8

x=16

Answer:

32.50

Step-by-step explanation:

giuggjgv

Answer:

I'm not really sure about this.

3a = 24 :

A teacher brought 24 apples to school.

She gave three of her students an unknown number of apples.

How many apples did each student collect?

Step-by-step explanation:

But I'm totally sure about this

x -7=6 :Lily brought an unknown number of apples to school .She gave out seven of those apples to her friends at the end of the day she had six apples remaining .how many apples did she bring to school?

Best of luck

Answer:

267

Step-by-step explanation:

Answer: He drove the truck for 278 miles.

Step-by-step explanation:

We can represent the situation by the equation,  16.99 + 0.76x = 228.27  where x is the number of miles.  16.99 is the base fee an 0.76 is the same as 76 cents .  

Solve for x in the equation to find out how many miles was driven.

16.99 + 0.76x = 228.27

-16.99                -16.99

0.76x = 211.28

x= 278

Answer:200=2.10 ^2

2,000=2.10^3

20,000=2.10^4

200,000=2.10^5

in other words B

Step-by-step explanation:

Answer:

1 1/3

Step-by-step explanation:

4x-3=9-5x

9x=12

x=12/9

x=4/3

x= 1 1/3

Answer:

6.25, 6.26, 6.27, 6.28, 6.29

Answer:

3 11/8

Step-by-step explanation:

Answer:

no

Step-by-step explanation:

Try doing cross multiplication 5/7 = 30/35,

7x30=5x35

210=175

those don't match so no the answer is no

(Just because I'm a high schooler doesn't mean that I'm not capable of doing this)

Answer:no they aren’t

Step-by-step explanation:although

25/35 are equivalent

The change in xx is equal to the difference in x-coordinates (also called run), and the change in yy is equal to the difference in y-coordinates (also called rise). m=4

Answer:

4

Step-by-step explanation:

m = 4

Answer:

I think the first one is B

Step-by-step explanation:

Answer:

C) 1

Step-by-step explanation:

Answer:

Step-by-step explanation:

-8( - 20+ (-4)2) = 32

-8(-20 + 16) = 32

-8(-4) = 32

32 = 32

Answer:

1.(-9+5)^2=16////2.-20+16=-4     /-4*-8=32

Step-by-step explanation:

..

Answer:

  11.06°

Step-by-step explanation:

The law of cosines can be used to find the angle. The sides adjacent to that angle are a=34, b=38, and the side opposite is c=8. Then the angle is found from ...

  c² = a² +b² -2ab·cos(C)

  cos(C) = (a² +b² -c²)/(2ab)

  C = arccos((a² +b² -c²)/(2ab))

  C = arccos((34² +38² -8²)/(2·34·38)) = arccos(317/323)

  C ≈ 11.06°

From the footballer's viewpoint, the goal posts are 11.06° apart.

Answer:

Therefore the answer is 7

Answer: x=30

Step-by-step explanation:

Set them all equal to 180

so it would be 180=x+2x-1+3x+1

isolate x by adding or subtracting the 1

180=6x

x=30

Answer: 1. 32. 2.13

Step-by-step explanation:

Answer:

34

Step-by-step explanation:

[tex](8-6)^5 * (2^{-4}+(2)^0)\\=2^5 *(\frac{1}{16} +1)\\=32*(\frac{17}{16})\\ =2*17\\=34[/tex]

Answer:

9,027.83

100 times smaller

Step-by-step explanation:

Given 184.36, the place value of 8 in the number is 8 tens i.e 8* 10 = 80

The place value of 8 in 9,027.83 is 8 tenth i.e 8* 1/10

8* 1/10 = 8/10

8/10 = 0.8

Hence the number that has the smaller value of 8 is 9,027.83.

To get how many times smaller the number is, we will take the ratio of 80 to 0.8 as shown:

[tex]= \frac{80}{0.8}\\ \\= 80 \div 0.8\\\\= 80 \div \frac{8}{10} \\\\[/tex]

[tex]= 80 * \frac{10}{8}\\ \\= \frac{800}{8}\\ \\= 100[/tex]

This means that the number 0.8 is 100 times smaller than 80

Answer:

a

 [tex]P(r n L) =  0.12[/tex]  

b

 [tex]P(L) = 0.225[/tex]

c

  [tex]P(\= r | L) = 0.4667 [/tex]

Step-by-step explanation:

The chance that it will rain is  [tex]P(r ) = 0.30 [/tex]

 The chance that it does not rain is [tex]P(\= r ) = 1 - P(r )  [/tex]

                                                             [tex]P(\= r ) = 1 -0.30  [/tex]

                                                              [tex]P(\= r ) = 0.70  [/tex]

The probability that the bus run late if it rains is  [tex]P(L | r) = 0.4[/tex]

 The probability that the bus run late if it does not rain is   [tex]P(L | \= r) = 0.15[/tex]

  Generally the probability that it will rain and the bus will be late is mathematically represented as

     [tex]P(r n L) = P(L | r) * P(r)[/tex]

=>  [tex]P(r n L) = 0.4 * 0.30[/tex]

=>  [tex]P(r n L) = 0.12[/tex]  

Generally the probability that the bus will be late is mathematically represented as

     [tex]P(L) = P(r) * P(L|r) + P(L | \= r) * P(\= r)[/tex]

=>  [tex]P(L) = 0.30 * 0.4 +0.15*0.70[/tex]

 =>  [tex]P(L) = 0.225[/tex]

Generally given that the bus ran late,  the probability that the bus it was not raining is mathematically represented as

      [tex]P(\= r | L) = 1- P(r | L )[/tex]

Here  [tex]P(r | L ) = \frac{P(r n L)}{P(L)}[/tex]

=>   [tex]P(r | L ) = \frac{0.12}{0.225}[/tex]

=>   [tex]P(r | L ) = 0.533 [/tex]

So

      [tex]P(\= r | L) =  1- 0.533[/tex]

   =>   [tex]P(\= r | L) =  0.467 [/tex]

Answer: 9

Step-by-step explanation:

divide 2 by y and 18 and the the 2divided by 2 cancel out. then divide 18 by 2 and you get y = 9

Answer:

The length is 6

Answer:

Step-by-step explanation:

Let A and B represent the angles that PA and PB make with the horizontal, respectively. Let Ta and Tb represent the tensions in PA and PB, respectively. Then for equilibrium, we have ...

  Ta·cos(A) - Tb·cos(B) = 0 . . . . . horizontal equilibrium

  Ta·sin(A) +Tb·sin(B) = T . . . . . . where T is the downward force exerted by P

__

The general solution of this pair of equations is ...

  Ta = T·cos(B)/(sin(B)cos(A) +sin(A)cos(B)) . . . by Cramer's rule

which simplifies to

  Ta = T·cos(B)/sin(A+B)

  Tb = T·cos(A)/sin(A+B) . . . . by symmetry or Cramer's rule

If we call the position of the right angle point X, then the Pythagorean theorem tells us AX = 30 (3-4-5 triangle) and BX = 96 (5-12-13 triangle). Then the cable tensions are ...

  Ta = T·(12/13)/(12/13·4/5 +3/5·5/13) = T·(20/21)

  Ta = (2.1 kg)(9.8 m/s²)(20/21) = 19.6 N

  Tb = T·(3/5)/(63/65) = T·(13/21)

  Tb = (2.1 kg)(9.8 m/s²)(13/21) = 12.74 N

These tension values can be rounded to Ta = 20 N, Tb = 13 N.

_____

The weight of P is ...

  F = Ma = (2.1 kg)(9.8 m/s²) = 20.58 N