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3 years ago

PLEASE HELP FAST Its in the photo below

Mathematics

1 answer:

azamat3 years ago

8 0

Answer:

there’s no photo

Step-by-step explanation:

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The circumference of a circle is 24 feet. What is the approximate length of the radius? Round to the nearest tenth

jarptica [38.1K]

<h3>given:</h3>

circumference= 24 feet

the radius of the circle.

<h3>solution:</h3>

$c = 2\pi \: r$

$r = \frac{c}{2\pi}$

$r = \frac{24}{2 \times \pi}$

$r = 3.81972$

$r = 3.8 \: ft$

therefore, the radius of the circle is 3.8 feet.

4 0

1 year ago

Read 2 more answers

2 1/2 ÷ 4=????? please help me

Umnica [9.8K]

Answer:

.625

Step-by-step explanation:

first i turned 2 1/2 into .5 then i divided.

4 0

3 years ago

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Consider the function f(x)=-3x^2 +7x -k. [3 Marks] a) For what values of k will the function have no zeros? b) For what values o

Anna35 [415]

Answer: a) k >4.08

b) k = 4.08

c) k<4.08

Step-by-step explanation:

Since we have given that

$f(x)=-3x^2+7x-k$

a) For what values of k will the function have no zeros?

It mean it has no real zeroes i.e. Discriminant < 0

As we know that

$D=b^2-4ac$

Here, a =-3

b = 7

c = -k

So, it becomes,

$D$

b) For what values of k will the function have one zero?

It means it has one real root i.e equal roots.

So, in this case, D = 0

So, it becomes,

$D=b^2-4ac=0\\\\D=7^2-4\times -3\times -k=0\\\\49-12k=0\\\\49=12k\\\\k=\dfrac{49}{12}\\\\k=4.08$

c) For what values of k will the function have two zeros?

It means it has two real roots.

In this case, D>0

So, it becomes,

$D=7^2-4\times -3\times -k>0\\\\49-12k>0\\\\-12k>-49\\\\12k$

Hence, a) k >4.08

b) k = 4.08

c) k<4.08

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3 years ago

What is 3(x+3)=2(x12) can u help me

Soloha48 [4]

You didn't type the equation correctly.

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Quotient z on 7 Decreases on 1 Decreases 7 ? ناتج قسمة Z على 7 يقل عن 1 بمقدار 7 ؟

Crank

Answer:

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3 years ago