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Arlecino [84]
3 years ago
11

Answer the questions, please I will give you 10 points

Mathematics
1 answer:
uranmaximum [27]3 years ago
8 0
A) 3 times 7x makes it a normal number of 21.
B) using PEMDAS you must multiply 5 times 5 to put 5 to its own power, then multiply by 2 to get 50, then add 4 getting 54.
C) 9 times 5y gets the normal number of 45, then subtract that from 80, you get 35.
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12. A red drone is 100 feet off the ground and is rising at 8 feet per second. A blue drone is 180
Harrizon [31]

Answer:

The red drone will be at the same height as the blue drone at 33.33 seconds, therefore higher at 34 seconds.

Step-by-step explanation:

Red drone = 100 + 8*seconds

Blue drone = 180 + 5*seconds

100 + 8*seconds = 180 + 5*seconds

3*seconds = 100

seconds = 33.33

4 0
3 years ago
How bad is the heavy traffic? You can walk 15
Butoxors [25]

Answer:

Average rate of car: x+3

Walking rate: x

The equation is  

10/15 = x/x+3

So

x = 6

So

Average rate of car: 9 mph

Walking rate: 6 mph

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is the equation of the line that is perpendicular to y, =, 1 over 3 x, 4. And contains the point negative 2, negative 5,?.
Anit [1.1K]

The equation of the line is, \rm y = 3x + 1.

Given that,

The equation of the line is,

\rm y = \dfrac{1}{3} x+4\\

And contains the point (-2, -5).

We have to determine,

What is the equation of the line that is perpendicular to the given line?

According to the question,

The equation of the line is,

\rm = \dfrac{1}{3}x + 4\\

On comparing with the standard equation of the line y = mx +c.

The slope of the line m_1 is 1/3.

When two lines are perpendicular the relation between these slopes is,

\rm m_1\times m_1 = {-1}\\\\\dfrac{-1}{3} \times m_2 = -1\\\\-1 \times m_2 = -1 \times 3\\\\-m_2 = -3\\\\m_2 = 3

And line contains the point (-2, -5).

Then,

\rm y = mx +c \\\\-5 = 3 (-2) + c\\\\-5 = -6+c \\\\c = 6-5 \\\\c = 1

Therefore,

The equation of the line that is perpendicular to the given line and contains the point (-2, -5) is,

\rm y = mx +c \\\\y = 3x +1

Hence, The required equation of the line is, \rm y = 3x + 1.

For more details refer to the link given below.

brainly.com/question/14388443

7 0
3 years ago
Question 7<br> Solve the Equation:<br> D(7) = ?<br> D= 8
Degger [83]
If 8=8 it will be 8(7) which means we have to do 8*7 and 8*7 will be 56 so the answer is 56 :) brainliest would be appreciated
4 0
3 years ago
This is confusing i need help ;-;
katovenus [111]

Answer:

B I think

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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