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3 years ago

Korede and Zahir were comparing their money amounts. Korede had $4.05, and Zahir had $5.04. Who had more money?

Mathematics

2 answers:

RSB [31]3 years ago

5 0

Answer:

Zahir.

Step-by-step explanation:

Zahir has 98p more money than Korede.

HACTEHA [7]3 years ago

3 0

Answer:

Zahir

Step-by-step explanation:

$5.04 is more money than $ 4.05

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Write an equation for a parabola that has a vertex (1, 2) and passes through the point (3, -6).

Alex

Answer:

y= -2x²+4x.

Step-by-step explanation:

the common equation of the parabola is y=ax²+bx+c, where a, b, c - numbers.

1) the coordinates of the vertex are:

$x_0=-\frac{b}{2a} \ and \ y_0=\frac{4ac-b^2}{4a}.$

2) if according to the condition x₀=1, then b= -2a.

If according to the condition y₀=2, then $2=\frac{4ac-b^2}{4a}=\frac{4ac-4a^2}{4a}=c-a;$

it means that c=a+2.

3) if b= -2a; c=a+2 and the point (3;-6) belongs to the given parabola, then it is possible to substitute them into the common equation of the parabola:

-6=3²*a-6a+a+2; ⇔ a= -2.

4) if a= -2, then b=-2a=4, and c=a+2=0.

5) if a=-2, b=4 and c=0, then the required equation of the parabola is:

y= -2x²+4x.

6 0

2 years ago

Pls help (50 points)

svetlana [45]

Answer:

4.5 inches

Step-by-step explanation:

We are given the formula:

V = $\pi r^{2}h$

Plug in the the radius (3) and volume (127.23):

127.23 = $3.14(3)^{2} h$

Square the 3 :

127.23 = $3.14(9)h$

Multiply the pi & volume:

127.23 = 28.26h

Divide both sides by 28.26:

127.23 ÷ 28.26 = 28.26h ÷ 28.26

h = 4.5021231...

I hope this helps!

6 0

3 years ago

Read 2 more answers

Thank you in advance

anzhelika [568]

A) $\sqrt[3]{x^4}$

B) Decimal Form: 0.87358046

sorry if i didnt get the 2nd one right i tired tho

mark brailiest please

6 0

3 years ago

The population of California is approximately 38,040,000. The population of Texas is about 2.606 × 10^7. What is the approximate

ivann1987 [24]

With scientific notation remember this rule; if the exponent is positive, move the decimal point that many places to the right. If it is negative move it that many places to the left. What that will do is make the number larger or smaller to the correct value.

So for example, if you had to solve 1.02 x 10^4 you would move the decimal four places to the right. So you would end up with 10200.
As another example if you had to solve 1.02 x 10^-2 you would move the decimal two places to the left. That would give you .0120.

So now we are onto your problem. 2.606 x 10^7.
You would move the decimal seven places to the right, because the exponent is positive, that will make your number larger(which would make more sense if you were adding populations, right?).
That would give you 26,060,000 people living in Texas.
From there simply add the two populations together and you will have your answer!

6 0

3 years ago

Read 2 more answers

Describe and correct the error a student made in finding the midpoint of CD with C(4,5) and D(1,4).

Andru [333]

Using the given information, the midpoint of CD is (2.5, 4.5)

<h3>Midpoint of a line </h3>

From the question, we are to determine the midpoint of line CD

The midpoint of a line is given by the formula,

[(x₁ + x₂)/2 , (y₁ + y₂)/2]

From the given information, we are to find the midpoint of line CD with coordinates C(4,5) and D(1,4)

∴ x₁ = 4

x₂ = 1

y₁ = 5

y₂ = 4

Putting the parameters into the formula for midpoint, we get

[(x₁ + x₂)/2 , (y₁ + y₂)/2]

[(4 + 1)/2 , (5 + 4)/2]

(5/2 , 9/2)

(2.5, 4.5)

Hence, the midpoint of CD is (2.5, 4.5)

Learn more on Midpoint of a line here: brainly.com/question/896396

#SPJ1

6 0

2 years ago