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Anna [14]
3 years ago
8

Please help and show work​

Mathematics
1 answer:
melisa1 [442]3 years ago
4 0

Answer:

first one is simnple cross multiply and divide

12*7=4x

84=4x

x=21

2nd same process but more steps

7x=5(x+8)

7x=5x+40

7x-5x=40

2x=40

x=20

Step-by-step explanation:

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If you choose a card at random from a well shuffled deck of 52 cards, what is the probability that the card chosen is not a hear
Vinvika [58]
Sample space ={13 H + 13 D + 13 S + 13 C} = 52 cards

P(getting one heart) = 13/52 = 1/4
P( getting NO heart) = 1-1/4 = 3/4 = 0.75
4 0
3 years ago
$3.00 for 150 golf tees
stepladder [879]

Answer:

2 cents a tee

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Can someone please help me workout this problem? If the quotient obtained by dividing 8x^4 - 2x^2 + 6x - 7 by 2x+1 is equal to 4
Angelina_Jolie [31]

Answer:

The answer to your question is p = -2 q = -6  remainder = -10

Step-by-step explanation:

Data

Dividend = 8x⁴ - 2x² + 6x - 7

Divisor    = 2x + 1

Quotient = 4x³ + px² - qx + 3

Process

1.- Divide using long division

                                4x³ - 2x² + 3                          

                   2x + 1   8x⁴ + 0x³ - 2x² + 6x - 7

                             - 8x⁴ - 4x³

                                 0   - 4x³ - 2x²

                                      + 4x³ +2x²

                                          0       0   + 6x - 7

                                                          -6x - 3

                                                             0 - 10    Remainder

         px² = -2x²  then  p = -2

         -qx = 6x     then q = -6

5 0
3 years ago
The graph shows Susan’s distance from her office, in yards, as she runs errands, over time, in minutes.
musickatia [10]
The question is asking how much time Susan spent moving toward her office.  On the graph, the y-axis represents the distance Susan is from her office, so the amount of time she is moving toward her office is the amount of time the graph is going down.

As you can see, the graph is going down from the 10 to 16 minute marks and the 22 to 26 minute marks.  In total, this is 20 minutes in which the graph is going down.

Therefore, Susan spends 20 minutes moving toward her office.
6 0
3 years ago
Type the correct answer in each box. use numerals instead of words. in a survey conducted by a retail store, 58% of the sample r
solmaris [256]

The required expected population proportion that prefers to shop at places with loyalty cards is between 54.6% and 61.4%.

Given That,
In a survey conducted by a retail store, 58% of the sample respondents said they prefer to shop at places with loyalty cards. if the margin of error is 3.4%.

<h3>What is population proportion?</h3>

A population proportion is defined as the percentage of a population that belongs to a individual category. Certainty gaps are used to evaluate population proportions.

Here, the margin of error is 3.4%.
expected population proportion = 58% ± 3.4%
expected population proportion interval = (58% - 3.4%, 58% + 3.4%)
expected population proportion interval = (54.6%, 61.4%).


Thus, The required expected population proportion that prefers to shop at places with loyalty cards is between 54.6% and 61.4%.

Learn more about population proportion here.
brainly.com/question/15087042
#SPJ1

3 0
2 years ago
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