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alexira [117]
1 year ago
6

A man has a mass of 120kg, he reduces his mass by 15%, how many kilograms is that​

Mathematics
2 answers:
Yuliya22 [10]1 year ago
6 0

Answer:

102 kg

Y = 120(1 - 0.15)

Y = 120(0.85)

Y = 102

Varvara68 [4.7K]1 year ago
5 0

Answer:

your answer should be 102kg i could be wrong.

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In the third degree polynomial function f(x) =x^3 + 4x, why are 2i and -2i zeros?
IgorC [24]

Answer:

We just need to evaluate and get f(2i)=0, f(-2i)=0.

Step-by-step explanation:

Since i^2=-1, then i^3=i^2i=-i, and we can apply this when we evaluate f(x) =x^3 + 4x for 2i and -2i.

First we have:

f(2i) =(2i)^3 + 4(2i)=2^3i^3+8i=8(-i)+8i=0

Which shows that 2i is a zero of f(x).

Then we have:

f(-2i) =(-2i)^3 + 4(-2i)=(-2)^3i^3-8i=-8(-i)-8i=8i-8i=0

Which shows that -2i is a zero of f(x).

4 0
3 years ago
Can you guys help me with this question
VLD [36.1K]

Answer:

2+2=4 quick mafs

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
At Fruits R Us, Mr. Orchard realizes that dried pineapple slices and dried apricots were two of his top dried fruit sellers. So
Rudik [331]

Answer:

Step-by-step explanation:

From the information given, you can write the following equations:

x+y=300 (1)

5x+8y=300*7

5x+8y=2100(2)

First, you can isolate x in (1):

x=300-y (3)

Now, you can replace (3) in (2):

5(300-y)+8y=2100

1500-5y+8y=2100

3y=2100-1500

y=600/3

y=200

Then, you can replace the value of y in (3) to find x:

x=300-200

x=100

According to this, the answer is that he should use 100 pounds of dried pineapple and 200 pounds of dried apricots.

4 0
3 years ago
Referring to the figure find m∠3
kkurt [141]

Answer:

Measure of angle 3 = 30⁰

Because vertically opposite angles are always equal

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3 years ago
Are the associative properties true for all integers?
Thepotemich [5.8K]

Its true for integers if you are using the associative property in addition or multiplication ONLY.

7 0
3 years ago
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