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pav-90 [236]
3 years ago
15

Can someone pleasee help

Mathematics
1 answer:
katrin2010 [14]3 years ago
6 0

Answer:

y-intercept: (0, 5)

Step-by-step explanation:

This parabola has an equation of -x² + 4x + 5.

It's y-intercept is (0, 5).

It's x-intercepts or roots are (-1, 0) and (5, 0).

It's vertex is (2, 9).

___________________________________

Keep in mind that the y-intercept is when x = 0.

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Help please ?<br> Write a quadratic equation in standard form with the given root(s) -5,1/2
sergejj [24]

Answer:

2x^2+9x-5

Step-by-step explanation:

(X+5)(x-1/2)

x^2-1/2x+5x-5/2

x^2+9/2x-5/2

multiply through by 2

2x^2+9x-5

5 0
3 years ago
Find the area of a circle with a radius of 21 feet. Use 22/7 for pi.
shusha [124]

Answer:

1386 square units

Step-by-step explanation:

Area of a cirlce = Pi x r^2 [ Pi is 22/7 as stated in question]

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Helga [31]
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7 0
3 years ago
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Nancy planted 44 plants in rows. If there are 7 plants in each row, how many plants are left over
deff fn [24]

Answer:There will be 2 plants left over.


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8 0
3 years ago
Write an algebraic expression to represent each statement<br> 50 added to half of a number, c
Fittoniya [83]

The expression represented by 50 added to half of a number, c is 50 + c/2

<h3>What are expressions?</h3>

Expressions are mathematical statements that are represented by variables, coefficients and operators

<h3>How to translate the algebraic expression?</h3>

The expression is given as

50 added to half of a number, c

half of a number, c means divide c by 2

So, we have

50 added to half of a number, c  => 50 added to c/2

Added to means +

So, we have

50 added to half of a number, c  => 50 + c/2

Hence, the expression represented by the statement is  50 + c/2

Read more about expressions at

brainly.com/question/22019327

#SPJ1

7 0
1 year ago
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