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monitta
2 years ago
6

What is 7 times ten to the first place

Mathematics
1 answer:
algol [13]2 years ago
7 0

700

Step-by-step explanation:

you just take 10 times it by itself 1 time you get 100 then you times it by 7

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Please help me! Im so confused. If you could explain, too that would be great!!! <3
Zielflug [23.3K]

Answer:

the base length is 8 units

Step-by-step explanation:

You can use pythagorean theorem to solve this

8 0
1 year ago
Solve the formula <br> x − y = −8 for y.
laiz [17]

Answer:

y = x + 8

Step-by-step explanation:

x - y =  - 8

x + 8 = y

4 0
3 years ago
Which ten thousand does 117,290 round to
Leni [432]

Answer:

120,000

Step-by-step explanation:

because seven in greater than 5 so it would round up

3 0
2 years ago
Solve the Law of Cosine: c^2 = a^2+ b^2 - 2abcosC for cos C.
Andrew [12]

Answer:

The Law of Cosine :  cos C = \frac{a^{2}+ b^{2}-c^{2}}{2ab}

Step-by-step explanation:

See the figure to understand the proof :

Let A Triangle ABC with sides a,b,c,

Draw a perpendicular on base AC of height H meet at point D

Divide base length b as AD = x -b   and    CD = x

By Pythagoras Theorem

In Triangle BDC             And     In Triangle BDA

a² = h² + x²     (  1  )                        c² = h² + (x-b)²

                                                      c² = h² + x² + b² - 2xb   ...(. 2)

From above eq 1 and 2

c² = (a² - x²) + x² + b² - 2xb

or, c² = a² + b² - 2xb                    .....(3)

Again in ΔBDC

cos C = \frac{BD}{BC}

Or, cos C = \frac{x}{a}

∴ x= a cos C

Now put ht value of x in eq 3

I.e, c² = a² + b² - 2ab cos C

Hence , cos C = \frac{a^{2}+ b^{2}-c^{2}}{2ab}      Proved   Answer

6 0
2 years ago
Sarah has 4 more $50 notes than $10 notes in her wallet.If the total amount of the notes is $380,how many $10 notes does Sarah h
Anni [7]

Answer:

3

Step-by-step explanation:

4 0
2 years ago
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