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2 years ago

Can u pls help me with this question asap

Mathematics

1 answer:

Tems11 [23]2 years ago

4 0

Answer:

I believe that answer A would be the best choice. It makes the most sense with what the question is asking for.

Step-by-step explanation:

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The cost of a bagel and a cup of coffee is $1.45. The cost of 3 bagels and a cup of coffee is $2.95. What is the cost of a cup o

seropon [69]

 The answer is 0.75.Hope this will help u....

8 0

2 years ago

Find the value of x 15x-14y=12*y/x

nirvana33 [79]

Answer:

x=1.5 or 0.5

Step-by-step explanation:

Not sure if I am correct

3 0

3 years ago

2. A two-stage rocket is in development. The required probability is for the overall rocket to be a minimum of 97% reliable for

ikadub [295]

Answer: The minimum reliability for the second stage be 0.979.

Step-by-step explanation:

Since we have given that

Probability for the overall rocket reliable for a successful mission = 97%

Probability for the first stage = 99%

We need to find the minimum reliability for the second stage :

So, it becomes:

P(overall reliability) = P(first stage ) × P(second stage)

$0.97=0.99\times x\\\\\dfrac{0.97}{0.99}=x\\\\0.979=x$

Hence, the minimum reliability for the second stage be 0.979.

4 0

3 years ago

A 2 feet- wide walkway surrounds a rectangular swimming pool. The swimming pool is 12 feet wide and 16 feet long. What is the ar

Andru [333]

Answer:

128 sq. ft.

Step-by-step explanation:

The outer sides of the walkway will have a length of 20 feet and the breadth will be 16 feet

The area of the pool along with the walkway will be 20 × 16 = 320 square feet.

Area of the pool without the walkway will be 16 × 12 = 192 square feet.

Therefore area of the walkway will be

352 - 216 = 128 square feet.

6 0

2 years ago

Express x^2+8x+15 in the form (x+a)^2-b

IRINA_888 [86]

Step-by-step explanation:

We have,

$x^2$ + 8x + 15

To express $x^2$ + 8x + 15 in the form of $(x+a)^2$ - b = ?

∴ $x^2$ + 8x + 15

Adding and subtracting 1, we get

= $x^2$ + 8x + 15 + 1 - 1

= $x^2$ + 8x + 16 - 1

= $x^2$ + 2(x)(4) + $4^{2}$ - 1

Using the algebraic identity,

$(x+y)^{2}=x^{2} +2xy+y^{2}$

= $(x+4)^2-1$

Thus, $(x+4)^2-1$ in the form of $(x+a)^2$ - b.

7 0

3 years ago

Can u pls help me with this question asap ​

Can u pls help me with this question asap