Which expression is equivalent to 4 - (-7

Answer: 42 MPH

I hope this helps, and Happy Holidays! :)

Answer:

Step-by-step explanation:

if Melinda's family drove 378 miles in 9 hours, her average speed is

378/9=42 miles per hour

Answer:

1. no, 2. yes

Step-by-step explanation:

You need to use the triangular inequality thereom, which goes by if any side lengths are added together, they are greater than the remaining one. So, for number one, although 20+9=29>8 and 20+8=28>9, 9+8<20 since 9+8=17, which is less than 20. For number two, yes because 1) it is a right triangle triple and 2) 3+4=7>5, 4+5=9>3, and 5+3=8>4.

Answer:

Number 1 is Not a triangle so No and you don’t need to classify becuase it’s not aa triangle

Number 2 is a triangle becuase its ta Pythagorean triplet and even if you checK, it adds up.

Step-by-step explanation:

1) So using Pythagorean Theorem

8^2+9^2=20^2

64+91=400

That is not true

2) 3^2+4^2=5^2

9+16=25

That is true  

Answer:

It would be A.10

Step-by-step explanation:

20/5 = 4

9/2.25= 4

40/10 = 4

Answer: i think 20

Step-by-step explanation:

Answer:

14+6x=13, or further 1+6x=0

Step-by-step explanation:

2+3(2x+4)=13,

Distribute the 3 into the parenthesis:

2+6x+12=13

Now combine like terms: 14+6x=13.

You can also write this as 1+6x=0 by subtracting 13 to the left, though it might not be necessary.

Answer:

80 degrees. add the known angles, then subtract it from 180.

Answer:D

Step-by-step explanation:

It's on a computer

Answer:

simulation

Step-by-step explanation:

im in 8th grade

Answer:

so 1- 2 is  negative 3 so minus tha by 3 than 4x2

Step-by-step explanation:

Answer:

tip=48.28  

total cost =316.49

Step-by-step explanation:

tip = 48.28

Total + tip= 316.49

Answer:

-19

Step-by-step explanation:

3^2= 9

(9-16)(4)= -28

-28+9= -19

Answer:

-19

Step-by-step explanation:

At the equation together then

Multiply 9-7 x 4

Calculate 9-28

That equals -19 so -19 is the answer

Answer:

y-4x-6

Step-by-step explanation:

I'm not 100% sure but I think this is correct!

Answer:

y - 4x - 6

Step-by-step explanation:

y - 4 • x - 6 = y - 4x - 6

Answer:

b

Step-by-step explanation:

Answer:

Yes, yes it is.

Answer:

No it is not

Step-by-step explanation:

If you were to write 6y2x=10 in standard form it would be

y=√15x/3x

or

y=-√15x/3x

Hope this helps :)

Answer:

1 is >

2 is >

I think this is right, you may need to confirm this

Answer:

1080 m^2 Don't submit m^2 in your answer.

Step-by-step explanation:

Givens

The catch is to find h

To do that, use a^2 + b^2 = c^2

a b and c are in the same 1/2 triangle.

a = 48/2 = 24 m

b = h = ?

c = 51 meters

Solution

a^2 + b^2 = 51^2                      Substitute for b^2 = h^2

24^2 + h^2 = 51^2                   Expand 24^2 and 51^2

576 + h^2 = 2601                    Subtract 576 from both sides

h^2 = 2601 - 576

h^2 = 2025                              Take the square root of both sides

h = 45

Area

Area = 1/2 b * h

Area = 1/2 48 * 45

Area = 1080

Remark

Notice that to find h you only use 1/2 of 48 because that is the base of the right triangle.

To find the area, you need to use all of 48 because 48 is the full length of the base.

Answer:

a. Down payment of $21,000

= 21,000 / 140,000

= 0.15

= 15%

b. Down payment of $7,000

= 7,000/ 140,000

= 0.05

= 5%

Answer:

$6

Step-by-step explanation:

Answer:

8,1

Step-by-step explanation:

maybe i think this will help you

Answer:

512:27

Step-by-step explanation:

We just cube the edge length ratio since a pyramid is a 3-dimensional figure and volume is 3-dimensional:

8:3 -> 8^3:3^3 -> 512:27

Therefore, the correct answer is 512:27

Answer:

512:27 the answers is that one.

Answer:

B

Step-by-step explanation:

denominators are related

40 x 2.5=100

48 x 2.5=120

so they are the same

hope this helps

take care

Answer:

tobey duh

Step-by-step explanation:

Answer:  D) $36,528.75

=======================================================

Explanation:

Positive inflation eats away at the purchasing power of money.

If inflation is 4.5%, then the purchasing power goes down by 4.5% meaning his purchasing power is 100% - 4.5% = 95.5% of what it used to be.

95.5% of $38,250 = 0.955*38250 = 36,528.75

So his purchasing power is $36,528.75

The purchasing power of Bart by the income of last year is option D. $36,528.75.

Inflation can simply be defined as the increase in the rate of the prices over a period of time. In other words, inflation describes how much more expensive has a commodity or service becomes in a period of time.

It is clear that, inflation decreases the purchasing power of money.

Given that, the inflation rate is 4.5%.

Also, Bart had an income of $38,250 last year.

Purchasing power will get decreased by 4.5%.

Purchasing power = $38,250 - ($38,250 × 4.5%)

                              = $38,250 - (1721.25)

                              = $36,528.75

Hence the purchasing power of Bart is $36,528.75.

To learn more about Inflation, click on the link given below :

https://brainly.com/question/1869740

#SPJ6

Answer:

186 beats per minute

Step-by-step explanation:

The maximum heart rate (r ) in beats per minute is modeled by the equation :

r = 220 - a ...(1)

Where

a is age of the person in years

If Sanchez age is, a = 34 years

Put a = 34 in equation (1)

r = 220 - 34

= 186 beats per minute

Hence, the maximum heart rate is 186 beats per minute.

Answer:

my answer is 2 . 3 I think

Answer:

If Ellen traveled 35 miles and this was 70% of her trip, then 100% of her trip would be 50 miles.

Step-by-step explanation:

You can solve this by setting up a proportion. 35/70 = ?/100. To solve this, cross-multiply 35 and 100 to get 3,500. Divide this by 70 and get 50. This means that 35/70 = 50/100.