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I need help with this review ​

Answers

Answer 1
Answer:

Answer:

What do you need help with?

Step-by-step explanation:

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1/2(x-6.5) = 3.16 what is x?

Answers

Answer:

x =12.82

Step-by-step explanation:

1/2(x-6.5) = 3.16

Multiply each side by 2

1/2(x-6.5) *2 = 3.16 *2

(x-6.5) = 6.32

Add 6.5 to each side

(x-6.5+6.5) = 6.32+ 6.5

x =12.82

Answer: 12.82

Step-by-step explanation:

1/2(x-6.5)= 3.16

x=12.82

James Priya and Siobhan work in a grocery store James makes 9.00!per hour Priya makes 40% more than James and Siobhan makes 15% less than priya how much does Siobhan make per hour

Answers

James has $9

Priya has $10.80

Siobhan has $9.18

because 9*20% is 1.8 so add that to 9 to get 10.80 then times 10.80 by 15% to get 1.62 so you subtract 1.62 from 10.80 to get $9.18  

Evaluate k - m if k = 8, m = -7, and p = -10.

Answers

Answer:15

8-(-7)=8+ 7=15 BECAUSE -(-7) = +7

Step-by-step explanation:

BECAUSE -(-7) = +7 SO THE PROBLEM CHANGES TO 8+7=15

P=10 HAS NOTHING TO DO WITH THE FORMULA. K-M=?

A 94-ft tree casts a shadow that is 110 ft long. What is the angle of elevation of the sun?

Answers

Answer:

Step-by-step explanation:

Setting up a diagram would be helpful here, so we should have the vertical leg representing the 84-ft. tree and the horizontal leg representing the 120 ft. shadow.  With the two measurements we are given, we should use the tangent ratio, opp/adj,  to set up an equation to solve for the angle of elevation. So the equation will be:

tan θ = 84/120.  Using the tan inverse function on the calculator, we have tan-1( 84/120) = θ and, rounding our decimal value to the nearest 10th, we have θ =35°.  

Final answer:

The angle of elevation of the sun, formed by a 94-ft tree and its 110-ft shadow, can be found using tangent in trigonometry. The formula tan(θ) = opposite/adjacent is used, where the opposite is the height of the tree (94 ft) and the adjacent is the length of the shadow (110 ft).

Explanation:

In the given problem, the tree and its shadow form a right triangle with the sun forming the angle of elevation. The length of the tree represents the opposite side of the triangle, and the shadow length represents the adjacent side. To find the angle of the sun's elevation, we can use the tangent function in trigonometry, which is the ratio of the opposite side to the adjacent side.

Step 1: Define variables
Let θ be the angle of elevation.
Opposite side (o) = 94 ft.
Adjacent side (a) = 110 ft.

Step 2: Use the tangent function
The formula is tan(θ) = o/a.

Step 3: Substitute the values
We substitute our variables into the formula to get θ = tan-1(94/110).

Step 4: Calculations
You can calculate this using a scientific calculator to find the angle of elevation.

Learn more about Trigonometry here:

brainly.com/question/31896723

#SPJ3

A coin is flipped 8 times. Find the probability of the event:

exactly 6 heads

Answers

Answer:

P(E)=56256=732.  Step-by-step explanation:

Thus, the probability of getting exactly 3 heads when a coin is flipped 8 times in a row

Write the equation of the line that passes through the points 7, -4 and -1, 3 first and point-slope form and then in slope intercept form

Answers

Answer:

The slope of the line is -7/8

When the point (7, -4) is used, the point-slope form of the line is y+4=(-7/8)(x-7)

The slope-intercept form is y=(-7/8)x+(17/8)

Step-by-step explanation:

Answer:

point slope form:

y - 3 = -4/3(x- (-1))

slope intercept form:

y = -4/3x + 13/3

Step-by-step explanation:

So if the points are (7, -4) and (-1,3) then we can use those points to figure out the slope.

y2-y1/x2-x1 is the forumla for the slope

3-7/ -1 - (-4) --> -4/-1+4 --> -4/3

point slope form:

y - y1 = m(x-x1) ~ you can choose either of the two points to use, you should get the same answer

y - 3 = -4/3(x- (-1))

y - 3 = -4/3x+4/3

add 3 to both sides

y = -4/3x + 13/3 ~ slope intercept form
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