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castortr0y [4]
3 years ago
7

What is the sum in simplest form? 4 1/2 + 1 7 3 = 0

Mathematics
1 answer:
grin007 [14]3 years ago
3 0

Answer:

Step-by-step explanation:

4.5+173=177.5.

122.5 does not equal 0.

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3 3/8 divided by 1 1/8
Tju [1.3M]
Turn them into improper fractions and then flip 27/8 to its reciprocal (8/27) and then multiply.
5 0
3 years ago
Find the explicit formula for a 1 =-4,a n =a n-1 +9,n>=2
Mrrafil [7]

Given:

a_1=-4 and a_n=a_{n-1}+9 where n\geq 2.

To find:

The explicit formula for the given recursive formula.

Solution:

We know that recursive formula of an AP is:

a_n=a_{n-1}+d

Where, d is the common difference.

We have,

a_n=a_{n-1}+9

Here, d=9.

The first term of the AP is a_1=-4.

The explicit formula for an AP is:

a_n=a_1+(n-1)d

Substituting a_1=-4 and d=9, we get

a_n=-4+(n-1)9

a_n=-4+9n-9

a_n=-13+9n

Therefore, the required explicit formula for the given sequence is a_n=-13+9n.

6 0
3 years ago
Please answer correctly
TiliK225 [7]

Answer:

Step-by-step explanation:

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Angle C = angle A(because opposite angles of a parallelogram are congruent)

side DC = side AB(because the opposite sides of a parallelogram are congruent. Therefore,

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3 0
4 years ago
Find 2x2 − 2z4 + y2 − x2 + z4 if x = −4, y = 3, and z = 2 can you help me
Natali [406]
Alright, so plugging it in, we get 2(-4)^2=2(2)^4+3^2-(-4)^2+2^4. Use PEMDAS with parenthesis and exponents to then get (2)(16)+9-16+16. Multiplying 1 and 16,  we get 32+41-16+16=73
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3 years ago
WILL MARK BRAINLIEST!!! HELP PLEASE!! <br><br> What percent of runners ran 75 seconds or slower?
Vinil7 [7]

Answer:

16

Step-by-step explanation:

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