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hodyreva [135]
3 years ago
15

An object moves 8 2/3 miles per hour how long will it take to get to 5 1/5 miles

Mathematics
1 answer:
Ad libitum [116K]3 years ago
7 0

Answer:

24/65 hour

Step-by-step explanation:

16/5 / 26/3

Keep, change, flip

16/5 x 3/26

48/130 which reduces to the answer

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Please help<br><br>numbers 42, 43, 44
Aleks [24]
<h3>Answer:</h3>

42.  29°

43.  3x³ +2x² -3x +10

44.  20a² +68a

<h3>Step-by-step explanation:</h3>

42.  The right-angle corner tells you the two marked angles are complementary — they sum to 90°.

  (-3x +20)° + (-2x +55)° = 90°

  -5x +75 = 90 . . . . . . . . . . collect terms, divide by °

  -5x = 15 . . . . . . . . . . . . . . . subtract 75

  x = -3 . . . . . divide by the coefficient of x

The angle of interest is (-3x+20)°. Filling in the found value for x, we have ...

  (-3·(-3) +20)° = 29° = m∠BDC

___

43.  The distributive property is useful for multiplying polynomials.

  (x +2)(3x² -4x +5) = x(3x² -4x +5) +2(3x² -4x +5)

  = 3x³ -4x² +5x +6x² -8x +10 . . . . . eliminate parentheses

  = 3x³ +2x² -3x +10

___

44.  Area is the product of length and width, so this becomes a problem in multiplying polynomials.

  area = (5a +17)(4a) = 20a² +68a . . . . area in square feet

3 0
3 years ago
What is the solution to the compound inequality in interval notation?
ohaa [14]

The given compound inequality is

2(x+3)>6 \ or \ 2x+3\leq  -7

First we solve the first inequality,

2(x+3)>6&#10;\\&#10;x+3 >3&#10;\\&#10;x>0

Now we solve the second inequality

2x+3\leq -7&#10;\\&#10;2x \leq  -7-3&#10;\\&#10;2x\leq  -10&#10;\\&#10;x\leq  -5

So we have

x > 0 \ or  \ x\leq  -5

So the required solution is

( - \infty,-5] \ or \ (0, \infty)

Correct option is A .

4 0
3 years ago
Susan bought a total of seventeen candy bars for $10.83. If the peanut bars cost 69¢ each and the choco-
ladessa [460]

Answer:

all work is shown/pictured

3 0
3 years ago
Read 2 more answers
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Fofino [41]
The answer less then 6
8 0
2 years ago
Read 2 more answers
Determine the value of p.
mina [271]

Answer:

p=22

Step-by-step explanation:

180-70-2p-3p=0

110=2p+3p

110=5p

p=110÷5

p=22

6 0
3 years ago
Read 2 more answers
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