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RideAnS [48]
3 years ago
11

Solve the formula A=1/2h(a+b)

Mathematics
1 answer:
lapo4ka [179]3 years ago
3 0

Answer:

Step-by-step explanation:

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Ivan and tanya share £150 in the ratio 4:1
netineya [11]

Answer:

Ivan got £90 more than tanya.

Step-by-step explanation:

£150/(4+1)

=£150/5

=£30

Ivan: £30 x 4=£120

Tanya: £30 x 1=£30

Ivan - Tnaya=£120 - £30=£90

Hope it helps.

6 0
3 years ago
What number should be added to both sides in order to solve x^2 -8x=0
GREYUIT [131]

Answer:

16

Step-by-step explanation:

x^2 -8x=0

rewrite in this form and add 16 to both sides:

x² + 2(- 4)x + 16 = 0 + 16

(x - 4)² = 16 ( take square root of both sides )

x - 4 = ±  4

x =  4 ± 4

x=8 , x= 0

7 0
2 years ago
There are 28.35 grams in an ounce and 2.21 pounds in a kilogram. Miriam converted 7 kilograms to ounces, but her answer is not c
sergejj [24]

Answer: OPTION C.

Step-by-step explanation:

For this exercise it is important to remember the following:

1\ kilogram=1,000\ grams

Knowing this and based on the information provided in the exercise, you can make the conversion from kilograms to ounces. This is:

(7\ Kg)(\frac{1,000\ gr}{1\ Kg})(\frac{1\ oz}{28.35\ gr})=246.913\ oz

According to the exercise, Miriam's procedure was:

 (7\ Kg)(\frac{1,000\ gr}{1\ Kg})(\frac{28.35\ gr}{1\ oz})= 198,450\ oz

So you can identify that she made a mistake.

Notice that:

1. Miriaim multiplied correctly.

2. Butt the third fraction should be \frac{1\ oz}{28.35\ gr} and not \frac{28.35\ gr}{1\ oz}.

5 0
3 years ago
Read 2 more answers
HELPPPPPPPPP and explain why
raketka [301]
Answer: True

=================================================

x^2 = x*x
5x = 5*x
Both x^2 and 5x have a factor of x in common

x^2 + 5x = x*x + 5*x
x^2 + 5x = x*x + x*5
x^2 + 5x = x*(x+5) .... use the distributive property in reverse

x^2 + 5x factors to x*(x+5)

As a way to check, you can distribute the x back in
x*(x+5) = x*x + x*5
x*(x+5) = x^2 + 5x
and we get the original expression again
3 0
3 years ago
Read 2 more answers
Thing i need to show a person
lesya692 [45]

Answer:

k thx for points den

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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