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3 years ago

Help me out pls for quiz

Mathematics

1 answer:

dybincka [34]3 years ago

7 0

If you mean the third circle it should be 4inches since radius is 2inches (given on the drawing) and diameter is double the radius

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PLEASE HELP ME 20 POINTS + BRAINLIEST

nataly862011 [7]

9514 1404 393

Answer:

(b) 36.56 ft

Step-by-step explanation:

The perimeter is the total of the circumference of a 4 ft circle and two lengths that are 12 ft.

The circumference is given by ...

C = πd

C = (3.14)(4 ft) = 12.56 ft

Adding the 24 ft of straight sections, we find the total perimeter to be ...

P = 12 + 12 + 12.56 = 36.56 . . . feet

8 0

2 years ago

Read 2 more answers

1/4(1-2/3)^2+1/3 Simplify

MrMuchimi

Simplifying the expression gives 13/ 36

<h3>How to solve the expression</h3>

Given;

1/4(1-2/3)^2+1/3

Represented as;

$\frac{1}{4} * ( 1 - \frac{2}3} )^2 + \frac{1}{3}$

Take the LCM of the bracket

$\frac{1}{4} * ( \frac{1}{3} )^2 + \frac{1}{3}$

Find the square

$\frac{1}{4} (\frac{1}{9} )+ \frac{1}{3}$

Find the LCM

$\frac{1}{36} + \frac{1}{3}$

1 + 12/36

13/ 36

Thus, simplifying the expression gives 13/ 36

Learn more about fractions here:

brainly.com/question/1622425

#SPJ1

6 0

1 year ago

Read 2 more answers

Y=1/2 x + 2 what is the slope?

dem82 [27]

Answer:

1/2

Step-by-step explanation:

y=mx+b where m is slope.

5 0

3 years ago

Consider the parabola y = 2(x − 1)^2 + k. Find the value of k if the y-intercept is 8

zubka84 [21]

Answer:

Step-by-step explanation:

if y-intercept is 8, means when x = 0, y = 8

8 = 2(− 1)^2 + k

8 = 2 + k

k = 6

5 0

2 years ago

4n² +7n=0 what do I do if there is no part c?

Gnoma [55]

Answer:

Find the coefficients using ax^2 + bx + c = 0

a = 4

b = 7

c = 0

Make the coefficient equal 1. But how do we do that? Division.

4n² + 7n = 0

4/4n² + 7n/4 = 0/4

Simplify

= n² + 7/4n = 0

a = 1

b = 7/4

c = 0

Complete the square using b/2².

b = 7/4

(b/2)² = (7/4 ÷ 2)²

Use fraction rule.

7/4 ÷ 2² = 7/4² / 2²

<em>square the numbers</em>

7/4² / 2² = 49/16 ÷ 4

49/16 ÷ 4 = 49/16 × 1/4

49/16 × 1/4 = 49/64

Add to both sides of the equation using 49/64

b = 7/4

b/2 = 7/4 ÷ 2

<em>simplify</em>

b/2 = 7 ÷ (4 × 2)

<em>simplify(arithmetic)</em>

b/2 = 7/8

n² + 7/4n + 49/64 = 49/64

(n + 7/8)² = 49/64

Solve for the unknown x

$(n+\frac{7}{8})^2=\frac{49}{64}\\\sqrt{(n+\frac{7}{8})^2}=\sqrt{\frac{49}{64}}\\$

Next, cancel out the square on the left side.

$n+\frac{7}{8}=+/-\sqrt{\frac{49}{64}}$

Subtract 7/8 from both of the sides.

$n+\frac{7}{8}-\frac{7}{8}=-\frac{7}{8}+/-\sqrt{\frac{49}{64}}$

Simplify the left side.

$n=-\frac{7}{8}+/-\sqrt{\frac{49}{64}}\\n=-\frac{7}{8}+/-\frac{\sqrt{49}}{\sqrt{64}}\\n=-\frac{7}{8}+/-\frac{7}{8}\\n_1=0\\n_2=-\frac{7}{4}$

<em>That wraps it up for this equation. Hope it helped!</em>

3 0

2 years ago