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BabaBlast [244]
3 years ago
15

Which is correct? 1, 2 , 3, or 4?

Mathematics
2 answers:
max2010maxim [7]3 years ago
8 0

Answer:

i think its B

Step-by-step explanation:

navik [9.2K]3 years ago
5 0

Answer:

(B) Yes, Robin is correct because (4 2/5) / (2/5)= 11.

Step-by-step explanation:

(4 2/5) / (2/5)=

(4.4) / (0.4)

11

Hope that this helps, have a good day/night and good luck!

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Sum of 2 numbers is 86 if one number exceeds by other by 12 find the numbers​
AveGali [126]

Answer:

49, 37

Step-by-step explanation:

Let one number be x and other be y.

According to the first condition:

x + y = 86.....(1)

According to the second condition:

x = y + 12..... (2)

Substituting x = y + 12 in equation (1)

y + 12 + y = 86

2y = 86 - 12

2y = 74

y = 74/2

y = 37

x = y + 12

x = 37 + 12

x = 49

Thus, the two numbers are 49 and 37

8 0
2 years ago
Read 2 more answers
Carol surveyed two samples of 200 people each about their favorite musical instrument and recorded them in the table below.
Tcecarenko [31]

Answer:

\%Guitar = 33 \%

Step-by-step explanation:

Given

The two-way table

Required

Percentage of men and women whose favorite is Guitar

From the table, we have:

Total = 200

Those who prefer Guitar

Men=29

Women = 37

So:

Guitar = 29 +37 = 66

So, the percentage of men and women is:

\%Guitar = \frac{Guitar}{Total} * 100\%

\%Guitar = \frac{66}{200} * 100\%

\%Guitar = \frac{6600}{200} \%

\%Guitar = 33 \%

5 0
3 years ago
Given the function f(x) = x2 and k = 3, which of the following represents the graph becoming more narrow?
Bess [88]
Functions A and C and D are translations - this means that they are exactly the same shape as f(x), but are displaced on the axes. A translation in the y-direction by k units is represented by f(x) + k, and a translation in the x-direction by k units is represented by f(x - k). This can be summarised in column vector notation:

A translation of the graph y = f(x), by the vector \left[\begin{array}{ccc}a\\b\end{array}\right] results in the graph defined by y - b = f(x - a). This is done by replacing x with (x - a) and y with (y - b). Finally it is rearranged to make y the subject, as is often the convention: y = f(x - a) + b.

Since the graph needs to change shape, this requires a 'stretch'. A stretch is performed by multiplying x or y by a constant, which here is k.

To stretch in the x-direction by a factor n, replace x with (1/n)x. Similarly to stretch in the y-direction by a factor n, replace y with (1/n)y.

For example to stretch y = f(x) by factor n in the x-direction, it would become y = f((1/n)x).

A simple quadratic graph like y = x^2 behaves slightly differently to most other graphs, in that it can narrowed by a stretch in the x or y direction. This means that a more convenient option is to perform a stretch in the y direction, since the multiplier lies outside the function notation. The stretching factor is 3, so we replace y with (1/3)y:

(1/3)y = f(x)
y = 3f(x)

Since k = 3, this becomes

y = kf(x)

... and hence the correct answer is B
6 0
3 years ago
Read 2 more answers
a city got 40 inches of rain in 2012 in 2013 it got 44.8 inches what was the percent increase? help fast ​
Alex777 [14]

Answer:

10.2% increase

Step-by-step explanation:

44.8-40 = 4.8

4.8/40 = 10.2

6 0
3 years ago
Please write an equation
Katen [24]

Answer:

y = \frac{3}{4} x + 2

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (0, 2) and (x₂, y₂ ) = (4, 5) ← 2 points on the line

m = \frac{5-2}{4-0} = \frac{3}{4}

The line crosses the y- axis at (0, 2 ) ⇒ c = 2

y = \frac{3}{4} x + 2 ← equation of line

4 0
2 years ago
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