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eduard
3 years ago
9

What is the value of 30-2(7+2)-1

Mathematics
1 answer:
Firdavs [7]3 years ago
6 0

Answer: 11

Step-by-step explanation:

30 - 2(7+2)- 1        Distribute or  solve parentheses

30 - 14 -4 - 1  

30 - 19 = 11  

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Aditi can walk 1.7 miles in half an hour. At the same constant speed, how many hours would it take her to walk 17 miles?
blondinia [14]

Answer:

It takes aditi 5 hours to walk 17 miles.

Step-by-step explanation:

First, find her speed in miles per hour.

1.7 miles in half an hour.

1.7 * 2 = 3.4

3.4 miles per hour.

To find the time, use the distance formula.

Distance = rate * time

17 = 3.4 * time

17/3.4 = time

5 = time

8 0
2 years ago
the figure below to answer the questions that follow 6cm LO 3.3.1 Calculate the angle, 60, in radians. (2) 3.3.2 Calculate the a
Mrrafil [7]

Answer:

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3 0
3 years ago
F(x) = { -2x -1, x ≤ 2
Degger [83]

Answer:

Use the appropriate entry method for piecewise functions for the graphing calculator of interest.

Step-by-step explanation:

For Desmos, the entry looks like ...

f(x) = {x ≤ 2: -2x-1,-x+4}

_____

For a TI-84 calculator, the entry may look like ...

Y₁ = (-2X–1)(X≤2) + (-X+4)(X>2)

The symbols ≤ and > come from the TEST menu, which is the (2nd) shift of the MATH key.

Note that the function is the sum of the pieces, each piece multiplied by a test. For something like 0≤x<2, the multiplier would be a pair of tests:

... (0≤X)(X<2)

8 0
3 years ago
Need some help with this question please.
enyata [817]
Anwser:

Y= -2(x)+5

Step by step explanation


Math class
4 0
2 years ago
A line and the point (3,4) are graphed in the coordinate plane. what is the equation of the line that passes through the point (
oksano4ka [1.4K]

Answer:

B. y=1/4x+13/4

Step-by-step explanation:

3 0
2 years ago
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