Mathematics High School

Anyone know how to do this?

Answers

Answer 1

Answer:

60.22in^2.

Step-by-step explanation:

First, find the area of the rectangle. 14.1x7=98.7.

Then, we need to find the area of the circle and subtract it from the area of the rectangle.

The area of the circle is pi*r^2. so, pi*3.5^2 is about 38.48. (The radius is half of the diameter, so the radius would be 3.5).

Since there are two halves of the circle, we can just subtract 38.48 from 98.7 so get the area of the shaded region. So, the area of the yellow area is 60.22in^2.

Answer 2

Find rectangle area: 14.1 x 7 = 98.7

Find areas of semicircles: a = 3.14(3.5)^2 = 76.96

Subtract area of semicircles: 98.7 - 76.96 = 21.74

Related Questions

The length of a rectangle is (3x + 1) and the width is (2x + 3). Find the
expression that represents the area of the rectangle.

Answers

Answer:

area = l * w

= (3x + 1) * (2x + 3)

what is the value of this

Answers

Answer: 5.0625 or 5 1/16

Step-by-step explanation:

im smart

What is the perimeter of this red
polygon?
2 cm
3 cm
4 cm
4 cm
[? ]cm
please help asap:))

Answers

96

multiply the side length by the number of sides

Pre calculus question need help asap

Answers

B I think not sure .

what factors of 52 add up to equal -8

Answers

Answer: 2x26 4x13 1x52

Step-by-step explanation:

Answer:

1 x 52 = 52.

2 x 26 = 52.

4 x 13 = 52.

Help ASAP !!!!!!!!!!!!!!!!!!

Answers

Answer:

Step-by-step explanation:

it's basically the peak/ center.

1.............................

Mrs. Smith wants to cover her garden with dirt. She measured half the garden's length at 6 feet long. How many square feet will Mrs. Smith need to cover?

Answers

Answer:

Missing information

Step-by-step explanation:

We aren't told the width or the shape of the garden so its not possible for me to answer this, however I can tell you the length of the garden.

6ft = 1/2x

x = 12ft

The garden is 12ft long, if you would like further help with this question please provide me with all the information to this problem.

Please mark brainliest if this helped!

I am thinking of a number. If you add 3 to the number and then multiply the sum by four, you end up with 48. What is my number?

Answers

Answer:

Step-by-step explanation:

48 / 4 = 12

12 - 3 = 9

Check Work

9 + 3 = 12

12 * 4 = 48

A triangle has side lengths of
(x-8) (4x2 – 3) and (4x2 + 4).
If the perimeter is 650 units, what is the value of x?

Answers

Given:

The three sides of a triangle are:

[tex](x-8),(4x^2-3),(4x^2+4)[/tex]

The perimeter of the triangle 650 units.

To find:

The value of x.

Solution:

Perimeter of a triangle is the sum of all three sides of the triangle. So,

[tex]Perimeter=(x-8)+(4x^2-3)+(4x^2+4)[/tex]

[tex]Perimeter=8x^2+x-7[/tex]

The perimeter of the triangle 650 units.

[tex]8x^2+x-7=650[/tex]

[tex]8x^2+x-7-650=0[/tex]

[tex]8x^2+x-657=0[/tex]

Splitting the middle term, we get

[tex]8x^2+73x-72x-657=0[/tex]

[tex]x(8x+73)-9(8x+73)=0[/tex]

[tex](x-9)(8x+73)=0[/tex]

Using zero product property, we get

[tex](x-9)=0\text{ and }(8x+73)=0[/tex]

[tex]x=9\text{ and }x=-\dfrac{73}{8}[/tex]

For negative value of x, the side [tex](x-8)[/tex] will be negative, which is not possible because the side of a triangle cannot be negative.

Therefore, the only value of x is 9.

What is the median of the data set?
17, 18, 20, 22, 24, 25, 30
A. 17
B. 30
C. 7
D. 22
Please help I will give brainiest!!!

Answers

Answer:

D. 22

22 is in the middle

There are three numbers on both sides of 22 so it makes it even and 22 ends up being in the middle.

Hope this helps

Nicole runs 6 miles in 45 minutes. At the same rate, how many minutes would she take to run 4 miles?

Answers

Answer:

30 minutes

Step-by-step explanation:

6=45

4=x

6x2/3=4

45x2/3=30

x=30

Answer:

66 minutes

Step-by-step explanation:

What is the product of ( 7 − 3 i ) × ( 4 + i ) ?

Answers

Answer: 31-5i

Step-by-step explanation:

28+7i-12i-3i^2

28-5i+3

31-5i

Answer:

31 - 5i

Step-by-step explanation:

(7 - 3i) * (4 + i)

Step 1: Multiply complex numbers 7 − 3i and 4 + i like you multiply binomials.

7 * 4 + 7i - 3i * 4 - 3i²

Step 2: By definition, i² is -1.

7 * 4 + 7i - 3i * 4 - 3 ( - 1)

Step 3: Do the multiplications.

28 + 7i - 12i + 3

Step 4: Combine the real & imaginary parts.

28 + 3 + (7 - 12)i

Step 5: Do the additions.

31 - 5i

The product of (7 - 3i) and 4 + i is 31 - 5i.

Thandi received 15% discount on a dress that costs R1500. How much did she
pay?

Answers

Answer:

She paid $1,275.00.

Step-by-step explanation:

I'm assuming you meant $1,500, so I'll be using that.

You can figure this out by subtracting 15% of 1,500 from 1,500.

15% of 1,500 is 225.

1500-225=1275

Therefore, 15% off of $1,500 is $1,275.

Triangle ABC is circumscribed about circle H, with points of tangency D, E, F.

What is the perimeter of Triangle ABC.

Answers

Answer: 30

Step-by-step explanation:

i don’t know, but i know it’s 30

Answer: 28

Step-by-step explanation:

Is AB tangent , yes or no and why?

I need help ASAP

No links!!!

Answers

Answer:

no because the radius doesn't make 90 degree

find the volume of the cylinder!

Use 3.14 for pi-

round your answer to the tenths place !!

Will mark b if correct:)

Answers

Answer: this is the answer i got before rounding it 2123.72 but your answer is 2123.7 hope it helps

Step-by-step explanation:

Consider the quadratic equation 3x^2-6=2x. (a) What is the value of the discriminant? (b) What does the discriminant of the quadractic equation tell about the solutions to 3x^2-6=2x?

Answers

Answer:

(a) discriminant is positive, 76

(b) the above tells you there are two real roots

Step-by-step explanation:

the discriminant is 'b² - 4ac'

3x² - 2x - 6 = 0 ∴ a = 3, b = -2, c = -6

(-2)² - 4(3)(-6) = 4 + 72

(a) The discriminant of the quadratic equation is positive, 76.

(b) The quadratic equation tells you there are two real roots.

What is a quadratic equation?

A quadratic equation is a polynomial with a degree of 2 or the maximum power of the variable is 2 in quadratic equations. It has two solutions as its maximum power is 2.

The discriminant of a polynomial in mathematics is a quantity that depends on the coefficients and enables inference of some root features without computing them.

Given that the quadratic equation 3x²-6=2x.

The discriminant Of the quadratic equation is calculated by the formula below:-

D = b² - 4ac

3x² - 2x - 6 = 0 ∴

a = 3, b = -2, c = -6

Put the value of the coefficient to get the value of the discriminant.

D = (-2)² - 4(3)(-6) = 4 + 72 = 76

Therefore, the discriminant of the quadratic equation is positive, 76, and the quadratic equation tells you there are two real roots

To know more about a quadratic equation follow

https://brainly.com/question/1214333

#SPJ2

Help plsss!
What are the zeros of f(x) = x2 - x - 20?
O A. x= -5 and x = 4
O B. x=-2 and x = 10
C. x= -10 and x= 2
O D. x = -4 and x = 5

Answers

Answer: D

Explanation: Factor -> f(x) =(x-5)(x+4)
Solve: x-5 = 0. x+4=0
X = 5, X=-4

PLZ HELP!!!!!!! AND NO LINKS

Answers

Answer:

Step-by-step explanation:

Acids turn litmus paper red. The characters of acids are given by substance A. An acid tastes sour and also conducts electricity well because of ionization properties. Additionally, Hydrogen gas is produced from acid-base neutralizations because most if not all acids contain hydrogen.

Do this and I’ll pay u I need help

Answers

Answer:

"bring me my money"

Step-by-step explanation:

the solution set for an inequality refers to

Answers

Answer:

Step-by-step explanation:

A solution set is the set of values which satisfy a given inequality. It means, each and every value in the solution set will satisfy the inequality and no other value will satisfy the inequality. Example: Solve 2x + 3 ≤ 7, where x is a natural number.

The measure of an angle is 5.9°. What is the measure of its supplementary angle?

Answers

Answer:

174.1 degrees

Step-by-step explanation:

180 - 5.9 = 174.1

Answers

Answer:

Please read below:

Step-by-step explanation:

To calculate the area, you'll need πr². In this case, 3.14 * r²

If the radius is 50 feet, you'll calculate 50 * 3.14² which equals 492.98, or, B

Hope this helps :)

The following list shows how many brothers and sisters some students have: 3, 4, 3, 5, 6, 2, 5, 4, 5, 4, 6, 5, 3 State the mode.

Answers

I believe the mode is 5 because there are four 5’s which is the most of a certain number in this list.

Han has four shirts in his shirt drawer – a blue shirt, a grey shirt, a white shirt, and an orange shirt. He has three pairs of pants in his pants drawer – blue pants, khaki pants, and black pants. If Han chooses a shirt without looking and then chooses pants without looking, what is the probability that he will choose pants and a shirt that are the same color?

Answers

Answer:

1/12

Step-by-step explanation:

12 combinations are possible in this scenario. Shirts. Pants

blue 1 blue 2khaki 3black

grey 4 blue. 5khaki 6black

white 7 blue 8khaki 9black

orange 10blue 11khaki 12black

blue/blue are the only matching items so 1/12 chance

Answer:

1/12

Step-by-step explanation:

Is 2.36 a rational number?

Answers

Answer:

Yes

Step-by-step explanation:

Since it is a terminating (it ends) decimal and could be written as a fraction

please help

Will mark brainlist

Answers

I think answer is b that is 10raise to 2

At the start of a hike, a hiker was at an elevation of -50 feet (where 0 represents sea level). The hiker climbs at a rate of 15 feet per minute. a. Write an inequality that represents t, the number of minutes after the start of the hike, when the hiker’s elevation was higher than 5 feet above sea level.

Answers

Answer:

15t - 50 > 5

Step-by-step explanation:

Initial point = -50 ftClimbing rate = 15 ft / minTime = t

Required inequality:

15t - 50 > 5

Solution:

15t > 55t > 55/15t > 3 10/15 = 3 40/60 min = 3 min 40 seconds

Answer:

Solution given:

Initial point = -50 ft

Climbing rate = 15 ft/min

Time = t(let)

So Required inequality:

15t-50 > 5

adding 50 on both term

15t> 55

dividing both term by 15

t > 55/15

t> [tex] 3 \times \frac{10}{15} [/tex]=

[tex] 3 \times \frac{40}{60} [/tex]= 3 min 40seconds is your answer

Using the given degree measure give two coterminal angle (one negative and one positive) and the reference angle. - 40°

Answers

Answer: C 2021 edg

Step-by-step explanation:

find the value of x
−20x−6=19

Answers

Answer:

the answer is x=−5/4

Step-by-step explanation:

hoped I helped:)

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