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Flura [38]
3 years ago
12

Pleasse help me with this

Mathematics
1 answer:
djverab [1.8K]3 years ago
7 0

Answer:

Step-by-step explanation:

30% off of $18.00

so that makes the price $12.60

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Seven friends picked 7 quarts of blueberries. Three of the friends will share 4 quarts of blueberries equally and the other 4 fr
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The three friends sharing 4 quarts get a greater amount of blueberries because they each get over 1 quart while in the other group each friend gets less than one quart.
Hope this helps.
6 0
3 years ago
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The ratio of shoes sold to sandals was 5:2. if there were 40 sandals sold, how many shoes were sold?
Angelina_Jolie [31]
It'd be best to put it into a proportion.
\frac{2}{5} = \frac{40}{x}
Cross multiply, divide by 2
The answer is 100 shoes.
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3 years ago
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A treehouse has an inside room and a porch, as shown below. Which equation
Nonamiya [84]

Answer:

B

Step-by-step explanation:

It tells you

6 0
3 years ago
Let R be the triangular region in the first quadrant with vertices at points (0,0), (a,0), and (0,b), where a and b are positive
Salsk061 [2.6K]

Answer:

volume of the solid generated when region R is revolved about the x-axis is π ₀∫^a ( \frac{-b}{a}x + b )² dx

Step-by-step explanation:

Given the data in the question and as illustrated in the image below;

R is in the region first quadrant with vertices; 0(0,0), A(a,0) and B(0,b)

from the image;

the equation of AB will be;

y-b / b-0 = x-0 / 0-a

(y-b)(0-a) = (b-0)(x-0)

0 - ay -0 + ba = bx - 0 - 0 + 0

-ay + ba = bx  

ay = -bx + ba

divide through by a

y = \frac{-b}{a}x + ba/a

y = \frac{-b}{a}x + b

so R is bounded by  y = \frac{-b}{a}x + b and y =0, 0 ≤ x ≤ a

The volume of the solid revolving R about x axis is;

dv = Area × thickness

= π( Radius)² dx

= π ( \frac{-b}{a}x + b )² dx

V = π ₀∫^a ( \frac{-b}{a}x + b )² dx

Therefore,  volume of the solid generated when region R is revolved about the x-axis is π ₀∫^a ( \frac{-b}{a}x + b )² dx

6 0
3 years ago
Two angles are supplementary. Which of the following equations can be used to find the value of the missing angle, x, if the oth
Natali [406]

Two angles are said to be supplementary if their sum is 180 degrees. So, if x and y are supplementary angles, the formula is

x + y = 180

We know that one of the angles (say x) is 98. So, the equation updates to

98 + y = 180

If we want to solve for the other angle, we can simply subtract 98 from both sides to get

y = 180-98 = 82

6 0
3 years ago
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