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Greeley [361]
3 years ago
11

Please solve this Screenshot/attachment that is included below, thanks!

Mathematics
1 answer:
amm18123 years ago
6 0

Answer:

1) A=5  

Step-by-step explanation:

1) W should be greater than 1, so the only option that satisfies this is A which is 5.  

(For the number line please look at the attachment)

I'm sorry, I don't know how to solve the second problem. I hope the first question helps. Sorry and Hope its clear.

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The floor of a hall has an area of 48 dm.The floor is to be tiled by triangular tiles.of sides 20 cm,30 cm and 40 cm. Find the t
vovangra [49]
The triangle is an obtuse triangle. No sides are equal.
convert cm to dm

1 dm = 10 cm

side a: 20 cm ⇒ 20cm * 1dm/10cm = 20dm/10 = 2 dm
side b: 30 cm ⇒ 30cm * 1dm/10cm = 30dm/10 = 3 dm
side c: 40 cm ⇒ 40cm * 1dm/10cm = 40dm/10 = 4 dm

We need to get the area of a triangle, but first we need to solve for its height using Heron's formula

s = (a+b+c)/2 = (2+3+4)/2 = 9/2 = 4.5
<span>Area = </span>√<span>(s(s-a)(s-b)(s-c)
</span>h3/2 = √4.5(4.5-2)(4.5-3)(4.5-4)
h3/2 = √4.5(2.5)(1.5)(0.5)
h3/2 = √8.44
h3/2 = 2.91
h = (2.91*2)/3
h = 1.94

A = hb/2 = (1.94*3)/2 = 5.82/2 = 2.91 dm²

48 dm² / 2.91dm² = 16.5 or 17 tiles needed

17 x Rs200 = Rs3,400 is the total cost
7 0
3 years ago
Anyone have any idea on how to solve this
Mkey [24]

Answer:

O y = (x + 5) (x + 3)

Step-by-step explanation:

y = (x + 4)² - 1

y = x² + 8x + 15

y = x² + 3x + 5x + 15

y = x(x + 3) + 5(x + 3)

y = (x + 5) (x + 3)

7 0
2 years ago
Read 2 more answers
Guys I need help this due soon
diamong [38]

Answer:

the sequence is continuing by multiplying -4

5 0
3 years ago
What is the range of the function f(x) = 24 + 4 when the domain is {-3, 1, 2}?
barxatty [35]

Answer:

the 24×4 you have to count 4 times

3 0
3 years ago
Which of the following graphs represents the function f(x) = x4 - 2x3 - 3x2 + 4x + 1?
s2008m [1.1K]

Answer: Graph D will be correct graph for the given function.

Explanation:

Given function f(x) = x^4-2x^3-3x^2+4x+1

Since it is a bi-quadratic equation thus it must have 4 roots and (0,1) is one of its point.

Moreover, the degree of the function is even thus the end behavior of the function isf(x)\to+\infty, as x\to-\infty and f(x)\to+\infty as x\to+\infty

In graph A, function has four root but it does not have the end behavior same as function f(x).( because in this graph f(x)\to-\infty, as x\to-\infty and f(x)\to-\infty, as x\to+\infty.) so, it can not be the graph of given function.

In graph B,  neither  it has four root nor it has the end behavior same as function f(x).(because in this graph f(x)\to+\infty as  x\to-\infty and f(x)\to-\infty as x\to+\infty.) so, it can not be the graph of given function.

In graph C, neither  it has four root nor it has the same end behavior as function f(x).(because in this graph f(x)\to-\infty as  x\to-\infty and f(x)\to+\infty asx\to\infty.) so, it also can not be the graph of given function.

In graph D it has four root as well as it has the same end behavior as the given function. Also it passes through the point (0,1).

Thus, graph D is the graph of given function.



4 0
3 years ago
Read 2 more answers
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