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3 years ago

PLEASE HELP!!! I WILL RATE YOU BRAINLIEST

Mathematics

1 answer:

grigory [225]3 years ago

7 0

Answer:

A. 6.43 kg

Step-by-step explanation:

Sana nakatulong

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777dan777 [17]

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2. 50
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4. estimate 156 + 235
160 + 240 = 400
5. 8,631 - 5,950 = 2,681
6. 724 * 17 = 12,308
7. 14÷6,230 = 2.25× $10^{-3}$ 
8. 962÷ 39
960÷ 40 = 24
9. .7
10. 36.90
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11. 9.610
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13. 4 $\sqrt{128.600}$ (pretend sqrt sign is division sign
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answer: 32.150
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5 0

3 years ago

Read 2 more answers

5x-8÷45x^2-42x-48 please solve

Valentin [98]

The answer is: 1/ 3(3x+2)

6 0

4 years ago

Simplify the expression (2-5 root 6) times 3 root 2

lys-0071 [83]

Answer:

6(√2 - 5√3).

Step-by-step explanation:

3√2 ( 2 - 5 √6)

= 6√2 - 15√12

= 6√2 - 15√4√3

= 6√2 - 30√3

= 6(√2 - 5√3)

6 0

3 years ago

b is the midpoint of AC and E is the midpoint of BD if A(-9,-4) C(-1,6) and E(-4,-3) find the coirdinates of D

natima [27]

To find the coordinate of the point D, we can use the Midpoint point of a line Segment formula. Calculation of the formula are as follows,

Given two points A(x1,y1) and C(x2,y2), we need to locate the midpoint coordinate of this line denoted as B(x,y).

To solve for the value of x and y, we get,

x=(x1+x2)/2 and y=(y1+y2)/2

For the given problem, we need to solve first the midpoint coordinate of AC which is B.

So, A(-9,-4)=A(x1,y1) and C(-1,6)=C(x2,y2)

Hence,

B(x,y)=B((-9+(-1))/2, (-4+6)/2)=B(-10/2,2/2)=B(-5,1)

Now, since the midpoint is given but one point in the line is missing. To solve for the missing point D(x2,y2), we need to use the Midpoint Segment Formula.

That is, B(-5,1)=B(x,y) and E(-4,-3)=E(x1,y1)

So,

x=(x1+x2)/2 and y=(y1+y2)/2

-5=(-4+x2)/2 and 1=(-3+y2)/2

By Cross Multiplication and Transposing method,

-5(2)=-4+x2 and 1(2)=-3+y2

x2=-10+4=-6 and y2=3+2=5

Thus, the coordinate of D is D(-6,5).

5 0

4 years ago

Which of the following is a rational number

d1i1m1o1n [39]

Answer:

there is no number

Step-by-step explanation:

8 0

4 years ago