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Oksanka [162]
3 years ago
10

Can you help me please

Mathematics
1 answer:
Mademuasel [1]3 years ago
5 0

Answer:

5.

A) 1:2

6.

D) 9 min

Plz make brainlest, THESE ARE THE CORRECT ANSWERRRRSS!

Step-by-step explanation:

5. 12:24

reduce to get 1:2

6. 225/25= 9 min

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The sail and mast of a sailboat form a right triangle.What is the height of the mast on the sailboat? height 20m width 12m
Mice21 [21]

Answer: 16 m

Step-by-step explanation:

Using the Pythagorean theorem you can find the height of the mast.

The formula is;

a² + b² = c²

a is one side of the triangle such as the width

b is another side such as the height

c is the hypotenuse which is the longest side.

c will therefore be 20m.

a will be 12m

12² + b² = 20²

b² = 400 - 144

b² = 256

b = √256

b = 16m

5 0
3 years ago
Explain why you cannot evaluate √−25 using real numbers.
puteri [66]
We can not evaluate it with real numbers, because there is no real number that multiplies itself twice and gives -25.

The answer is an imaginary number.

√-25 = 5i               where i = √-1

So it can only be computed using imaginary numbers.
6 0
3 years ago
If f(x) = x2 – 2x, find:<br><br> f(6)=
creativ13 [48]

Answer:

0

Step-by-step explanation:

When x=6

f(6) =(6)2-2(6)=12-12=0

8 0
3 years ago
Read 2 more answers
Help me on #8 on a-d please.
irga5000 [103]
So for these types of questions you want to substitute the value given into the equation...
So for a,

f(x)=2x-7
f(-3)=?
well instead of x you place -3,
so
f(-3)= 2*-3 - 7
So now you solve using order of operations (PEMDAS)
So,
2*-3=-6 So,
f(-3)=-6-7
-6-7=-13
So,
f(-3)=-13

Try to do that for the others and I'll let you know if you're right. Good luck!
5 0
3 years ago
Mr. and Mrs. Jones are a newlywed couple with no children. They have an estimated monthly budget of $3,878. What is the minimum
KatRina [158]

Answer:

$1939

Step-by-step explanation:

easy, just half the total need!

3 0
4 years ago
Read 2 more answers
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