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DIA [1.3K]
3 years ago
6

Randall’s family drove to the beach for vacation.

Mathematics
1 answer:
Brums [2.3K]3 years ago
6 0

Answer: 390 miles

Step-by-step explanation:

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Taylor completed the problem below. describe and correct the error in the problem. 2^(-4) = -2*-2*-2*-2=16
valina [46]
I am looking at ur first answer choice.....but something is off..
2^-4 = 1/(2^4) = 1/(2*2*2*2) = 1/16...this is correct

but ur answer choice says 2^-4 = 1/(2^-4)...and its supposed to equal 1/(2^4).
But I still think ur answer choice is A
3 0
3 years ago
Solve using a system of two equations in two unknowns.
vladimir1956 [14]

Hello!

To solve this, first write two equations. We are given two facts about the situation, so we can write the equations accordingly.

Say the length of the rectangle is l, and the width is w.

<u>The length of a rectangle is 9 inches more than twice its width:</u> 2w + 9 = l, as you're adding 9 to two times the width.

<u>The perimeter of the rectangle is 48 inches:</u> The equation for perimeter is 2l + 2w, so we can just use that in this case to make the equation - 2l + 2w = 48

Now, set up the system of equations.

\left \{ {{2w + 9 = l} \atop {2l + 2w = 48}} \right.

Now, we can already use substitution to solve. We get from one of the equations that l = 2w + 9, so we can substitute 2w + 9 for l in the other equation, and then solve for w.

2l + 2w = 48

2 (2w + 9) + 2w = 48

4w + 18 + 2w = 48

6w = 30

w = 5

We know one of our variables now. Now, all that's left to do is substitute 5 for w in one of the original equations to solve for l.

2w + 9 = l

2 (5) + 9 = l

10 + 9 = l

19 = l

Therefore, we now have our dimensions. The length of the rectangle is 19 inches, and the width is 5.

Hope this helps!

4 0
3 years ago
Excited about the success of celebrity​ stamps, post office officials were rumored to have put forth a plan to institute two new
SVETLANKA909090 [29]

Answer:

E=2.8 m-40

Step-by-step explanation:

We konw that  30°E=25°M and 310°E=125°M

so if we want to write an ecuation that linearly relates E with M, we can use the formula of the line that crosses two points:

Y-y1= (y2-y1)/(x2-x1)*(X-x1)

In thts case:

  • Y=E
  • y1= E1= 30
  • y2= E2=310
  • x1= M1= 25
  • x2=M2=125

so

E-E1= (E2-E1)/(M2-M1)* (M-M1)

E-30 = (310-30)/(125-25)*(M-25)

E-30 =280/100 *(M-25)

E-30 =2.8 M- 280*25/100

E-30 =2.8 M-70

E= 2.8 M-70+30

E=2.8 M-40

Good luck!

8 0
3 years ago
Write y-8=-7(x+2) in standard form
vladimir2022 [97]

Answer:

y-8=(7)/(5)*(x+10)

Step-by-step explanation:

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3 years ago
Read 2 more answers
PLEASE HELP ME 50 POINTS!!!
Irina-Kira [14]

Answer:

it's 13a+2 pal!

Step-by-step explanation:

3 0
2 years ago
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