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3 years ago

1

Mathematics

2 answers:

zubka84 [21]3 years ago

6 0

Option C is correct.

grandymaker [24]3 years ago

5 0

Answer:

Option C is correct

Step-by-step explanation:

A typical circle has equation in form of (x - a)^2 + (y - b)^2 = r^2, in which, (a, b) is center and r is radius.

A circle has the equation as below:

(x + 4)^2 + (y - 4)^2 = 1

<=>(x - (-4))^2 + (y - 4)^2 = 1^2

=> The center of this circle is (a, b) = (-4, 4) and the radius r = 1

=> Option C is correct

Hope this helps!

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Which graph represents the function f(x)= 0.2^x + 3

Dennis_Churaev [7]

The third graph or bottom left graph represents $f(x) = 0.2^{x} + 3.$

Step-by-step explanation:

Step 1:

To determine which of the given graphs represents the equation $f(x) = 0.2^{x} + 3$ , we substitute some values in the place of x.

When $x=0,$ $f(x) = 0.2^{x} + 3, f(0) = 0.2^{0} + 3= 4.$

Anything with an exponent of 0 will equal 1.

So the graphs on the right side cannot be the answers.

Step 2:

Now we substitute another value to determine which graph represents $f(x) = 0.2^{x} + 3.$

When $x=1,$ $f(x) = 0.2^{x} + 3, f(1) = 0.2^{1} + 3= 4.2.$

The value of f(x) when $x=1$ is lesser than the value of f(x) when $x =0.$

So the third graph or bottom left graph represents $f(x) = 0.2^{x} + 3.$

5 0

4 years ago

Solve for the smallest value of $x$ such that $24x^2 + 17x - 20 = 0.$ Express your answer as a simplified common fraction.

Gala2k [10]

X=5/8 or x=-4/3
here is the work if needed...
24x^2+17x-20=0
Step one: Factor left side of equation.
(8x-5)(3x-4)=0
Step two: Set factor equal to 0.
8x-5=0 or 3x-4=0
x=5/8 or x=-4/3

4 0

3 years ago

Help me please, the question is in the picture^^^!

Nat2105 [25]

Answer:

79.3

Step-by-step explanation:

2,037,634= 100 percent

1,614,840=x

x=1,614,840×100÷2,037,634

x=79.25

7 0

3 years ago

Is 7/12 bigger than 1/2

Varvara68 [4.7K]

Lets think of it this way:-

1/2 is one half

Whats half of 12? 6

Now, 7 is greater than 6, which means the fraction 7/12 is greater than 1/2

Answer: 7/12 is bigger

7 0

4 years ago

Read 2 more answers

if one in every 10 pieces of fruit is a currant and two in every five is a cherry what proportion are raisins

Viktor [21]

1/10 currant
2/5 is cherry × 2 to get it out of 10
so 4/10 (cherry) + 1/10 (currant) = 5/10 so 5 raisins

8 0

4 years ago