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VladimirAG [237]
3 years ago
15

80 x 25 = n Expanded form 80 x ( ) Partial product 80 x 20= 80 x 5 =

Mathematics
1 answer:
defon3 years ago
8 0

9514 1404 393

Answer:

  2000

Step-by-step explanation:

Expanded form:

  80 × (20 + 5)

Partial products:

  80 × 20 = 1600

  80 × 5 = 400

Sum of partial products: 1600 + 400 = 2000.

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What are some values to make -2x&gt; 10 true ?<br> Please help ASAP!
steposvetlana [31]

Answer:

-6 -7 -8 -9 -10

Step-by-step explanation:

anything that keeps going from there dont do anything like -5 -4 -3 -2 -1 because it would be wrong

any negative number that keeps increasing after -6

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3 years ago
6. I think the answer is H, could you help and check?!
Sliva [168]
Set up an equation to solve.
70% of original price equals $550, the amount Susan is paying.
0.70x = 550
8 0
3 years ago
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Please help me I do not understand what to do​
fgiga [73]

Answer:

3 7/12

Step-by-step explanation:

There are 12 inches in 1 feet. So 43 inches would be 43/12=3 7/12 feet.

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3 years ago
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Find the Value of the letter in the following questions. Give your answers to 3 s.f.
Elis [28]

Answer:

i = 75.7°

h = 48.2°

Step-by-step explanation:

==>To find i, use the sine rule for finding angles: sin(A)/a = sin(B)/b

Where,

a = 7.2cm

sin(A) = i

b = 6.5cm

sin(B) = sin(61) = 0.8746

Thus:

sin(A)/7.2 = 0.8746/6.5

Multiply both sides by 7.2

sin(A) = (0.8746*7.2)/6.5

sin(A) = 0.969 (3 s.f)

A = i° = sin^-1(0.969) = 75.7 (3 s.f)

==>To find h, use the Cosine rule for angles:

Cos(C) = (a²+b²-c²)/2ab

cos(C) = h°, a = 4, b = 4.5, c = 3.5

a² = 16

b² = 20.25

c² = 12.25

cos(C) = (16+20.25-12.25)/(2*4*4.5)

cos(C) = 24/36

cos(C) = 0.667 (3 s.f)

C = h° = cos^-1(0.667) = 48.2° (3 s.f)

4 0
3 years ago
Which is the solution to (8.5 x 103)(2 x 105) expressed in scientific notation?
kenny6666 [7]

We have been given an expression (8.5\times 10^3)(2\times 10^5). We are asked to find the solution to our given expression expressed as scientific notation.

Let us simplify our given expression.

Using exponent property a^m\cdot a^n=a^{m+n}, we will get:

8.5\times 2\times 10^3\times 10^5

17\times 10^{3+5}

17\times 10^{8}

Now to write our answer in scientific notation, we need our 1st multiple between 1 and 10. So we will rewrite our expression as:

1.7\times 10\times 10^{8}

1.7\times 10^{1+8}

1.7\times 10^{9}

Therefore, our required solution would be 1.7\times 10^{9}.

8 0
3 years ago
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