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Y_Kistochka [10]
3 years ago
14

HELP ASAP 5 STARS, THANKS, 20 POINTS, BRAINLIEST,

Mathematics
2 answers:
Bingel [31]3 years ago
5 0

Answer:

b.7

Step-by-step explanation:

you take the three and substitute that in for x.  2(3) + 1

2(3)=6 then add 1

vovikov84 [41]3 years ago
3 0

Answer:

7

Explanation:

You take the three and sub it for x

I am sure 100%!

Have a GR8 day!

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How to evaluate 11+y
s344n2d4d5 [400]

Good morning ☕️

Step-by-step explanation:

11+y is an expression that contains a variable ‘y’

then its value depends on ’y’

examples :

if y = 0 → 11+y = 11+0 = 11

if y = 1 → 11+y = 11+1 = 12

if y = 2 → 11+y = 11+2 = 13

and so on.

:)

7 0
3 years ago
What is the solution to the equation below?<br> 12 + square root 1 - 5x = 18
GrogVix [38]

Answer:

-1

Step-by-step explanation:

Square root 1 is 1. Add that to the 12 to get 13. Subtract 13 from both sides to get: -5x = 5. Divide both sides by -5 to get your answer: -1

5 0
3 years ago
Read 2 more answers
How can you add and subtract rational expression
Elis [28]

Answer:

who knows what your saying

8 0
2 years ago
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David was thinking of a number. David doubles it and adds 2.9 to get an answer of 13.2. Form an equation with
Ivenika [448]

Answer:

x2+2.9=13.2

Step-by-step explanation:

4 0
3 years ago
Draw a vector representing the course of a ship that goes 75 miles on a
Nat2105 [25]

Answer:

The answer is below

Step-by-step explanation:

We have a vector with a magnitude of 75 miles and a direction of 300 °.

To draw it, the first thing is to make a Cartesian plane, the first thing is to know in which quadrant it would be, 300 ° is in the fourth quadrant (270 ° - 360 °), that is, it would be 30 ° (300 ° - 270 °) with respect to to the y axis negative.

Knowing this angle, we calculate the value of x and y, knowing that the magnitude of the vector is 75 miles, that is, this value would be the hypotenuse.

The value on the x-axis can be calculated using the sine of the angle, like this:

sin 30 ° = x / 75

x = sin 30 ° * 75

x = 37.5

Now to calculate the value on the y-axis it would be by means of Pythagoras and it would be:

y ^ 2 = 75 ^ 2 - 37.5 ^ 2

y ^ 2 = 4218.75

y = 64.95, -64.95 because it must be located in the fourth quadrant

Which means that to draw the vector that we are asked to do, we must draw a point from origin (0,0) to (37.5, -64.95).

Then I leave a sketch of what it would be:

7 0
3 years ago
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