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ArbitrLikvidat [17]
4 years ago
12

What part of the expression below should be calculated first?

Mathematics
2 answers:
Lostsunrise [7]4 years ago
8 0
C ,in the most parenthesis
gulaghasi [49]4 years ago
4 0

To solve an expression involving too many parenthesis, we start with the inner most parenthesis.

Here the given expression is

8+{22×[15+(14×2)]

We can see that 8 adds {22×[15+(14×2)]}

So first we need to solve {22×[15+(14×2)]}

But in {22×[15+(14×2)]},22 multiplies the value of [15+(14×2)]

So we first need to evaluate [15+(14×2)]

Again in [15+(14×2)], 15 add to the value of (14×2)

Hence we need to calculate (14 ×2) first.

Option C) is the right answer.


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Which algebraic expression is a polymonial?<br> Answer: D the last one
den301095 [7]

Answer:

Correct.  The last one

Step-by-step explanation:

8 0
3 years ago
The vertex of this parabola is at (-2,-3). When the y-value is -2 the x-value is -5. What is the coefficient of the square term
olchik [2.2K]

Answer:

a = -3

Step-by-step explanation:

You're correct.

The form of the equation you need is

x=a(y-k)^2+h

Filling in our h, k, y, and x:

-5=a(-2+3)^2-2 which simplifies to

-5=a(1)-2 which simplifies further to

a=-3

Very good!!!! These can be tricky, but you got it!!

4 0
3 years ago
An AISI 1040 cold-drawn steel tube has an OD 5 50 mm and wall thickness 6 mm. What maximum external pressure can this tube withs
lukranit [14]

Answer:

82.79MPa

Step-by-step explanation:

Minimum yield strength for AISI 1040 cold drawn steel as obtained from literature, Sᵧ = 490 MPa

Given, outer radius, r₀ = 25mm = 0.025m, thickness = 6mm = 0.006m, internal radius, rᵢ = 19mm = 0.019m,

Largest allowable stress = 0.8(-490) = -392 MPa (minus sign because of compressive nature of the stress)

The tangential stress, σₜ = - ((r₀²p₀)/(r₀² - rᵢ²))(1 + (rᵢ²/r²))

But the maximum tangential stress will occur on the internal diameter of the tube, where r = rᵢ

σₜₘₐₓ = -2(r₀²p₀)/(r₀² - rᵢ²)

p₀ = - σₜₘₐₓ(r₀² - rᵢ²)/2(r₀²) = -392(0.025² - 0.019²)/2(0.025²) = 82.79 MPa.

Hope this helps!!

8 0
4 years ago
Nancy walk 50 Minutes each day for 4 Days last week Gullian walked 35 minutes each day for 6 days last week.How does the total n
Gre4nikov [31]

Answer:

Last week Gullian walked 10 minutes more than Nancy.

Step-by-step explanation:

1. Nancy walk 50 minutes each day for 4 days last week, then the total number of minutes Nancy walked is

50\cdot 4=200\ \text{minutes}.

2. Gullian walked 35 minutes each day for 6 days last week, then the total number of minutes Gullian walked is

35\cdot 6=210\ \text{minutes}.

3. Since 200 than last week Gullian walked 10 minutes more than Nancy.

8 0
3 years ago
How many times does 7 fit into 31
Oksana_A [137]

Answer:

4 times with a remainder 3

Step-by-step explanation:

7 * 4 = 28

28+3=31

7 0
3 years ago
Read 2 more answers
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