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Tasya [4]
3 years ago
12

Really need the answer, I will give brainlist!!!!

Mathematics
1 answer:
djverab [1.8K]3 years ago
8 0

Answer:

The speed of the boat is 29 km/h and the speed of the stream is 19 km/h.

Step-by-step explanation:

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Malcolm wanted to build a dog run with an area of 64. What is the smallest perimeter the dog run could be
Brrunno [24]
The shape with the most area with the smallest perimiter is the circle
first find the radius
then find the circumfernece(permiter)
so
area=64
shape=circle
area of circle=pi times r^2
pi times r^2=64
divide both sides by pi (aprox 3.141592)
r^2=20.3718
square root both sdies
r=4.5

circumference=2pi times r
2 times 3.141592 times 4.5=28.36
perimiter is 28.36
3 0
3 years ago
the vertex of this parabola is at (-3,-1). when the y-value is 0, the x-value is 4. what it the coefficient of the squared term
Len [333]
<span>1/49 = a
 have a great day.
 
</span>
3 0
4 years ago
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The base of a cube is parallel to the horizon. If the cube is cut by a plane to form a cross section, under what circumstance wo
Keith_Richards [23]
This question has this set of answer choices:

a) when the plane cuts three faces of the cube, separating one corner from the others

b) when the plane passes through a pair of vertices that do not share a common face

c) when the plane is perpendicular to the base and intersects two adjacent vertical faces

d) when the plane makes an acute angle to the base and intersects three vertical faces

e) not enough information to answer the question

The right answer is the first choice: a) when the plane cuts three faces of the cube, separating one corner from the others

You can see a picture of this case in the figure attached: as you can see the cross section (in pink) is a triangle.

8 0
3 years ago
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An item is regularly priced at $45 . it is on sale for 60% off the regular price. how much (in dollars) is discounted from the r
wariber [46]
The discount is 60% of regular price, or we can write it as
discount = 60% × regular price

input the numbers
discount = 60% × regular price
discount = 60% × 45
discount = 60/100 × 45
discount = 2,700/100
discount = 27

The answer is $27
4 0
4 years ago
Question 1 of 10
riadik2000 [5.3K]
D. F(x)=x^2. That’s The quadratic parent function
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3 years ago
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