Ask question

Ask question

All categories

3 years ago

8

The 1/2 part really confuses me because you have to multiply something and i can't think of the number

1 answer:

nirvana33 [79]3 years ago

4 0

There is a few ways to do this, lets try solving for the variable first.
1/2x+13>20
first subtract 13 on BOTH sides to try and isolate x
1/2x>7
now we will multiply by 2 because we are trying to get rid of the 1/2
x>14
any number, not including, 14 will work. It seems that we are left D as the answer because it has to be higher than 14, not equal to.

You might be interested in

CAN YOU PLEASE HELP ME CORRECT ANSWER GETS BRAINLIST !

andrezito [222]

Answer:

25

Step-by-step explanation:

7^2+24^2=625 the sqr root of 625 is 25

3 0

3 years ago

Read 2 more answers

A surveying team set up some equipment 104104 ft from the base of a tree in order to sight the top of the tree. From ground leve

jarptica [38.1K]

Answer:

Relative error = 0.0254 %

Step-by-step explanation:

Given details

Height of equipment from base is 104 ft

Elevation angle is 27.5 degree

From figure we have

$tan\theta = \frac{x}{104}$ .........1

$tan(27.5) = \frac{x}{104}$

x = 54.13 ft

differentiating 1st eq wrt x

$\frac{d}{dx} tan\theta = \frac{d}{dx} [\frac{x}{104}]$

$sec^2\theta \frac{d\theta}{dx} = \frac{1}{104}$

Taken $d\theta \ as \Delta x \ and\ dx = \Delta x$ for minute change

$\Delta x = 1.5% x$

$= 0.015 \times 54.13 = 0.8119 ft$

from $sec^2 \theta \frac{d\theta}{dx} = \frac{1}{104}$

$\Delta \theta = \frac{1}{104 sec^2 \theta} \Delta x$

$\Delta \theta = \frac{1}{104 \times 1.115} 0.8119$

$\Delta \theta = 0.007$

Reltaive error $= \frac{\Delta \theta}{\theta} \times 100$

$= \frac{0.007}{27.5}\times 100$

Relative error = 0.0254 %

4 0

3 years ago

What is the equation for the line with a slope of 7 and passes through (0,1)

Tom [10]

Answer:

y=7x+1

Step-by-step explanation:

y-y1=m(x1-x2)

y-1=7(x-0)

y-1=7(x)

y-1=7x

y=7x+1

7 0

4 years ago

Divya wants to find x in the figure. What theorem can Divya use to solve for x ? Alternate Exterior Angles Theorem Alternate Ext

IceJOKER [234]

Answer:

Proof of alternate exterior angles theorem. Consider the diagram above. The two lines are parallel.

Step-by-step i took the test but i guess i will show u % of the x and y quardernates and then x5 andd 6

8 0

3 years ago

What is (GCD) of 24, 48 and 60?

4vir4ik [10]

Answer:

12

Step-by-step explanation:

4 0

3 years ago