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3 years ago

I need help with this 2(5x+4)=

2 answers:

N76 [4]3 years ago

7 0

4/5

2(5x+4)=

distribute the 2

10x+8=

subtract 8 from both sides

10x=8

divide 10 from both sides

x=8/10

simplify by 2

x= 4/5

anastassius [24]3 years ago

7 0

Baby Darling is already the answer is 10x+8

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Question 3

Softa [21]

There are no solutions you could plug any numbers in and it would not work

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

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4 0

4 years ago

Ivy's basketball team scored 38 point in the first game of the season. In the next 2 games they scored a total of 77 points. For

AleksAgata [21]

Answer:

The expression given by Ivy is WRONG.

The correct expression is $(19 + 77 x (0.5) )

The total mount in jar = $57.5

Step-by-step explanation:

Here, for each point scored, $0.5 is put in the jar.

Now, the point scored in the first game = 38 points

So, the amount put in the jar for 38 points = 38 x ( amount for 1 point)

= 38 x ( $0.5) = $19

So, after first game, jar has $19.

Now, the point scored in the(2 +3) game = 77 points

So, the amount put in the jar for 77 points = 77 x ( amount for 1 point)

= 77 x ( $0.5) = 77 x (0.5)

So, after second and third game, jar has $ (77 x (0.5)).

Now, total amount in jar

= Amount after first game + Amount after second and third game

= 19 + 77 x (0.5)

But , here THE TOTAL AMOUNT given by Ivy = 38+(77 x 0.5)

And 19 + 77 x (0.5) ≠ 38+(77 x 0.5)

Hence, the expression given by Ivy is WRONG.

The correct expression is $(19 + 77 x (0.5) )

And, the total mount in jar = 19 + 38.5 = $57.5

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3 years ago

Ted is building a garden in his yard he measures one side of his yard and finds it 12 meters which measurement did ted find

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He found the length of the yard

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