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7nadin3 [17]
3 years ago
5

Which is greater 0.4 or 2/5

Mathematics
1 answer:
Svetach [21]3 years ago
8 0
Take 2 divided by 5 to convert them both into decimals then compare them 
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Help me with this question
lys-0071 [83]

Answer:

4π or about 12.56

Step-by-step explanation:

The circumference of a circle is calculated with diameter so we first need to find the diameter. Going from radius to diameter can be done by multiplying by 2, therefore 2*2=4 so the diameter is 4.

Now that we have the diameter we need to use the formula for circumference which is c=4*π. Because the question doesn't state to use 3.14 to multiply then you would usually use 4π as your answer but if you were to use 3.14 then you would get a circumference of 4*3.14=12.56.

7 0
3 years ago
Has an x-intercept of (4,0) and a y- intercept of (0,-2)
Mazyrski [523]

Just to be different we'll start with intercept intercept form which says the line through x intercept (a,0) and y intercept (0,b) is

\dfrac x a + \dfrac y b = 1

Through (4,0) and (0,-2) that's

\dfrac{x}{4} + \dfrac{y}{-2} = 1

Multiply through by the common denominator of 4 for standard form:

x - 2y = 4

For slope intercept form we solve for y

-2 y = -x + 4

y = (1/2) x - 2

We see our slope is (1/2) and we go through (4,0) so point slope form is

y - 0 = (1/2)(x - 4)

y = (1/2)(x-4)

5 0
3 years ago
The graph of the function f(x)= -3x+3 is shown.
Anni [7]
F(3)= -6
f(0)= 3
f(1)= 0
7 0
3 years ago
Can someone please answer for d and b
r-ruslan [8.4K]

Answer:

d=2√2, b=\frac{3\sqrt{2}}{2}

Step-by-step explanation:

first triangle is a 30-60-90

so, sides x-x√2-2x

x=2

therefore d=2√2

second triangle is 45-45-60

sides, 1-1-√2

which means b√2=6

b=6/√2 ---> multiply by √2/√2 to get ride of the √2 denominator

b=6√2/4 , simplify

b=\frac{3\sqrt{2}}{2}

3 0
3 years ago
Seventy weather balloons were sent up. Twenty-eight were found. What percent wer ound? 17​
In-s [12.5K]

Step-by-step explanation:

let the percent of found balloons be x

given,

total number of balloons= 70

number of found balloons= 28

according to the question,

x% of 70= 28

x/100 × 70 = 28

x=40

hence 40% of the balloons were found

5 0
3 years ago
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