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Nastasia [14]
3 years ago
12

Susie subtracted 3.9 From 30.9 And got 2.7 explain why this is not a reasonable. identify the errors in Susie’s work and what sh

e can do to fix it. Solve for the difference
Mathematics
1 answer:
ankoles [38]3 years ago
6 0
- 30.9
3.9
_____
27.0

for one the answer is 27 not 2.7
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A scale model of a building has a height of 1/5 meter. The scale of the model is 1cm=0.5m. What is the height of the building?
Elenna [48]

Answer:

2000 meters

Step-by-step explanation:

first you have to convert the meters into centimeters so then 1cm=100 cm

1/5 meter=20 cm

20*100=2000

2000 centimeters or 20 meters

hope this helps

brainliest?

6 0
3 years ago
Find the range for the given domain: {-2, -1, and 0} and the function is y= 3x^2
likoan [24]

Answer:

  {0, 3, 12}

Step-by-step explanation:

Put the domain values in the function and evaluate. The result is the range values.

  y = 3{-2, -1, 0}^2 = 3{4, 1, 0} = {12, 3, 0}

For the given domain, the range is {0, 3, 12}.

_____

<em>Additional comment</em>

Neither the domain nor range values need to be put in any particular order. However, it is often convenient for them to be arranged from least to greatest.

6 0
3 years ago
There are 12 inches in 1 foot and 5,280 feet in 1 mile. Jada ran 34 miles.
zvonat [6]

For this case we must convert 34 miles to feet and inches.

34 miles to feet:

34 miles * \frac {5280} {1} * \frac {feet} {miles} = 179,520 feet

Jada runs 179,520 feet

34 miles to inches:

34 miles * \frac {5280} {1} * \frac {feet} {miles} * \frac {12} {1} * \frac {inches} {foot} = 2,154,240 inches

Jada runs 2,154,240 inches

Answer:

Jada ran 179,520 feet

Jada ran 2,154,240 inches

3 0
2 years ago
Use the properties of equality to<br> find the value of x in the equation<br> 4(6x – 9.5) = 46.
Yanka [14]

Answer:

x = 7/2

Step-by-step explanation:

4 0
3 years ago
3x-y+z=-15<br> x+2y-z=1<br> 2x+3y-2z=0
Kazeer [188]
I assume you are being asked to solve these equations.  Since there wasn't an explanation as to how you are expected to solve them, I chose to demonstrate how to use a calculator matrix function. You can find matrix calculators online.  My instructions are for a TI-84
Push the blue 2nd button then push x^-1 button (it says matrix above this button in blue)
Arrow over to edit to change the dimensions of the matrix and to put in your values.  You have 3 equations (3 rows) and 4 terms (4 columns) so you put a 3x4 in for the dimension and the coefficients (see images).
You use the rref option in the math column in matrix to calculate the answer. 
The numbers at the end are the solutions. x = -4, y = 2, z = -1

5 0
3 years ago
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