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Alex787 [66]
3 years ago
9

What is (250*645)+345(879*521)-54(219*5674)

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

Answer: -623,397

Step-by-step explanation:

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Use circle C<br><br> classify arc MNO in circle C
inna [77]

Answer:

Semicircle

Step-by-step explanation:

As we can see, the arc is bounded by the chord MO

since the chord passes through the center of the circle, we have it that the chord is a diameter

Mathematically, an arc bounded by a diameter represents half of a circle

So we can conclude that the arc MNO in circle C is a semicircle

5 0
3 years ago
I can’t figure out what I did wrong. Two are incorrect please help ASAP!!!
nignag [31]

Answer:

an inequality symbol means either>or<so in this question 4 u use x<12

4 0
3 years ago
Simplify and solve for x. ​ ​ 5(x+20)= 7x+30
hodyreva [135]

Answer:

x = 35

Step-by-step explanation:

Solve for x:

5 (x + 20) = 7 x + 30

Expand out terms of the left hand side:

5 x + 100 = 7 x + 30

Subtract 7 x from both sides:

(5 x - 7 x) + 100 = (7 x - 7 x) + 30

5 x - 7 x = -2 x:

-2 x + 100 = (7 x - 7 x) + 30

7 x - 7 x = 0:

100 - 2 x = 30

Subtract 100 from both sides:

(100 - 100) - 2 x = 30 - 100

100 - 100 = 0:

-2 x = 30 - 100

30 - 100 = -70:

-2 x = -70

Divide both sides of -2 x = -70 by -2:

(-2 x)/(-2) = (-70)/(-2)

(-2)/(-2) = 1:

x = (-70)/(-2)

The gcd of -70 and -2 is -2, so (-70)/(-2) = (-2×35)/(-2×1) = (-2)/(-2)×35 = 35:

Answer: x = 35

6 0
4 years ago
Read 2 more answers
Can you help me find a?<br> 0.64 = a^2
erma4kov [3.2K]
You square root both sides. And it would be a=0.8
7 0
4 years ago
A concrete mix is designed to withstand 3000 pounds per square inch​ (psi) of pressure. The following data represent the strengt
kherson [118]

Answer:

(3960+4090+3200+3100+2940+3830+4090+4040+3780)/9 = 33030/9 = 3670

6 0
3 years ago
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