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morpeh [17]
3 years ago
6

Help me on B plz cant work it out

Mathematics
1 answer:
Nookie1986 [14]3 years ago
6 0

Answer:

1kg = 1000g

400g = 0,4 kg

0,4 - 1

1 - n

multiply diagonally

0,4*n = 1

n=10/4=2,5

1:2,5 is correct answer

Step-by-step explanation:

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If side A is twice as long as B and C is 25 using the Pythagorean Theorem,What are the lengths of side A and B? Round to the nea
777dan777 [17]

Answer:

<u>The lengths of side A is 22.4 and B is 11.9</u>.

Step-by-step explanation:

Given:

If side A is twice as long as B and C is 25 using the Pythagorean Theorem.

Now, to find the lengths of side A and B.

Let the side B be x.

So, the side A be 2x.

Side C = 25.

Now, to solve by using Pythagorean Theorem:

A² + B² = C²

(2x)^2+(x)^2=(25)^2

4x^2+x^2=625

5x^2=625

<em>Dividing both sides by 5 we get:</em>

x^2=125

<em>Using square root on both sides we get:</em>

x=11.18.

<u>B rounding to the nearest tenth =  11.9.</u>

Now, to get A by substituting the value of x:

2x\\=2\times 11.18\\=22.36.

<u>A rounding to the nearest tenth =  22.4.</u>

Therefore, the lengths of side A is 22.4 and B is 11.9.

8 0
3 years ago
I’m having trouble understanding how to solve this someone please help ASAP thank you!
vladimir2022 [97]

Answer:

Answer is 71.95°

Step-by-step explanation:

Cosine formula is

a^2=b^2+c^2-2bc(cosA)

cos A =b^2+c^2-a^2/2bc

if a= 119,b=94,c=173

cos A=94^2+173^2-119^2/2(94*173)

=8836+29,929-14,161/2(16,262)

=38765-14,161/32,524

=24604/32,524

=0.7564

cos A=0.7564

cos^-1=40.85°.that's for angle A.

Using the same formula

B=31.1°

C=180-(40.85+31.1)

C=180-71.95

C=108.05

Since angle on a straight line is 180

therefore x is 71.95

Also the sum of angles A and B

3 0
1 year ago
How many grams are there in 2.5 kilograms
Jobisdone [24]

1 Kg = 1000 g

1000 * 2.5 =

2500 g (your answer)


7 0
3 years ago
I NEED HELP AGAIN PLEASE 7 7/10+ 7 2/10
Lera25 [3.4K]
The answer is 14.9 or you can say <span>14 </span><span>9/10.</span>
7 0
3 years ago
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The relationship between the amount of data downloaded d, in megabytes, and the time t, in seconds, after the download started i
svetoff [14.1K]

Answer: A, C, F, there’s 4 but I only know 3

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3 years ago
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