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slavikrds [6]
3 years ago
13

A student added 0.523+2.36 and got the answer of 0.759. what were the student's mistake?

Mathematics
1 answer:
Artemon [7]3 years ago
3 0

Answer:

the answer is 2.883

Step-by-step explanation:

Because when you add 0.523+2.36, the decimal points line up together. Which make it 2.883. The student's mistake was that they didn't line the decimal points together.

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Pleaseee help me with this questionnn
Dafna11 [192]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
A 40-foot y’all monument sits on top of a hill. Eye is standing at a point on the hill and observes the top of the monument at a
aleksley [76]

Answer:

  54.8 feet

Step-by-step explanation:

We assume that the distance of interest is the direct line distance from the observation point to the bottom of the monument, segment PH in the diagram  below.

This can be found using the Law of Sines.

∠PMH is the complement of the angle of elevation to the top of the monument, so is 40°.

∠MPH is the difference in the angles of elevation, so is 28°.

__

The Law of Sines tells us the ratio of side lengths is the same as the ratio of the sines of the opposite angles, so ...

  PH/MH = sin(∠PMH)/sin(∠MPH) = sin(40°)/sin(28°)

Multiplying by MH, we can find the length of PH:

  PH = (40 ft)(sin(40°)/sin(28°)) ≈ 54.7669 ft

  PH ≈ 54.8 ft . . . . the distance Pete must climb to reach the monument.

3 0
3 years ago
Write the equation of the quadratic function in standard form represented by the graph
Nutka1998 [239]
Hello : 
f(x) = <span>a(x-k)²+k....... the point vertex is (h , k )
in this exercice : h = -3 and k = -1    s0 f(x) = a(x+3)²-1
find : a 
but f(0)=8
a(0+3)² -1 = 8
9a-1=8
9a =9
a=1
f(x) =(x+3)²-1 =x²+6x+9-1
f(x) = x²+6x+8    .... (</span><span>the quadratic function in standard form )</span>

3 0
3 years ago
The cost of a pair of jeans is 4 times the cost of a book
galben [10]

Answer:

what's the cost of the books then

Step-by-step explanation:

3 0
3 years ago
What is the exact volume of a sphere with a diameter of 36 in.?
Contact [7]
The volume of a sphere:
V=\frac{4}{3} \pi r^3
r - the radius

The diameter is twice the radius.
d=36 \ in \\&#10;r=\frac{36}{2} \ in = 18 \ in \\ \\&#10;V=\frac{4}{3} \pi \times 18^3=\frac{4}{3}\pi \times 5832=\frac{23328}{3} \pi=7776\pi \ [in^3]

The exact volume of the sphere is 7776π in³.
5 0
3 years ago
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