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deff fn [24]
3 years ago
13

Two numbers have the sum of 116. The same two numbers have a difference

Mathematics
1 answer:
julsineya [31]3 years ago
4 0

Answer:

64+52=116

64-52=12

Step-by-step explanation:

Brainliest plz took me like 10 minutes

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Maya purchased a prepaid phone card for $25. Long distance calls cost 23 cents a minute using the card. Maya used her card only
Leviafan [203]
Amount spent on the last call = $25 - $17.64 = $7.36 = 736 cents
Number of minutes used for last call = 736 / 23 = 32 minutes.

8 0
3 years ago
Evaluate the geometric series
JulijaS [17]

Answer:

Option B is correct.

sum of given geometric series is, 255

Step-by-step explanation:

Evaluate the geometric series: \sum_{i=1}^{8} 2^{i-1}

we can write this as:

1+2+4+.......+128

Formula for the sum of the geometric series:

S_n = \frac{a(r^n-1)}{r-1} for r > 1

where

a is the first term

n is the number of terms

r is the common ratio

In the given series:

common ratio (r) = 2>1, n = 8 and first term(a) = 1

Since,

\frac{2}{1} = 2

\frac{4}{2} = 2 and so on...

then substitute the given values in [1] we have;

S_n = \frac{1((2)^8-1)}{2-1}

or

S_n = 256-1 = 255

Therefore, the sum of given geometric series is, 255



6 0
3 years ago
Read 2 more answers
Given that sinθ=-3/4 in quadrant 4 find cosθ
Gekata [30.6K]

Step-by-step explanation:

sin∅=-3/4 in 4 quadrant which sine is negative there

using soh cah toa

sin=opp/hyp

where our opp=-3 and our hyp=4

using pythagoras theorem

hyp²=opp²+adj²

(4)²=(-3)²+adj²

16=9+adj²

16-9=adj²

adj²=7

adj=√7

from soh cah toa

cos∅=adj/hyp

cos∅=√7/4

4 0
2 years ago
Apply the distributive property to create an equivalent expression. 1/5(15+10k)
lara [203]
3 + 2k

This is because multiplying by 1/5 is like dividing each term by 5 
7 0
3 years ago
Read 2 more answers
Determine the measure of the angle labeled (4x+7)°.
Murrr4er [49]

Answer:

32

Step-by-step explanation:

First, combine like terms

4x+7=6x-9

     +9     +9

4x+16=-9

     -16   -16

Then divide by four to isolate x

4x=-25

x=-6.25

Plug in X to get the angle measure .

3 0
3 years ago
Read 2 more answers
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