how to do this question plz ​

How To Do This Question Plz

Answers

Answer 1

Answer:

a) root77

b) 2 root77 / ~17.55 cm^2

Step-by-step explanation:

a) by using Pythagorean Theroem,

a^2 + b^2 = c^2

2^2 + b^2 = 9^2

4 + b^2 = 81

81 - 4 = b^2

77 = b^2

root77 = b

b) 1/2bh is the quation for area thus,

area = 1/2 ( 4 ) ( root77)

area = 2 root77

or area = ~17.55 cm^2

Answer 2
Answer:

h = [tex]\sqrt{77}[/tex]

A =[tex]2\sqrt{77}[/tex]

Step-by-step explanation:

Rules for solving this problem:

Isosceles triangle rules

∠C = ∠ABC = BA

Because of isosceles being made up of two right triangles; using the pythagorean theorem we can deduce that

(1/2 x AC)² = BC² - h² (1/2 x AC)² = BA² - h²

Area of a triangle

A = 1/2 (Base x Height) = 1/2 * bh

Step 1 - Find the height

[tex]h =\sqrt{9^2 - ((1/2)AC)^2} = \sqrt{9^2 - ((1/2)~4)^2} = \sqrt{9^2 - 2^2} = \sqrt{81-4} = \sqrt {77}[/tex]

Step 2 - Find the area

[tex]A = \frac{1}{2}bh = (\frac{1}{2})(4)(\sqrt{77}) = 2 \sqrt{77}[/tex]

Hope this helps,

  - J.M.Jamon

        Pennsylvania State University

        Full-time B.S.CE. undergrad student


Related Questions

Consider the following figure where l1 and l2 are parallel and cut by transversals g1
and g2.

Part A: Determine the values of m, n, v, and r.

Part B: if m|o=8p-12, then determine the value of (p/1/4)


Help please

Answers

Answer:

helppppp

Step-by-step explanation:

Answer:

m: 88

n: 112

v: 88

r: 112

. Which fraction has the greatest value?

5/9. 7/8. 12/17. 8/11

Answers

Answer:7/8

Step-by-step explanation:

It is 7/8 because it is the fraction that is closest to a whole number

simplify each expressions: 7(5y - 3)

Answers

Answer:

35y-21

Step-by-step explanation:

7(5y-3)

7*5y  7*-3

35y-21

35y-21 would be the answer

What is the length of the altitude of the equilateral triangle below?

A: 32
B: 8 : 3
C: 4
D: 4 : 3
E: 1
F: 8

Answers

Answer:

D

Step-by-step explanation:

AP3X

pog

The altitude of the triangle is 4√3 which is the correct option (D)

What is the right triangle?

A right triangle is defined as a triangle in which one angle is a right angle or two sides are perpendicular.

In any equilateral triangle, the three angles are of equal measure and they equal 60 degrees.

When we drop a perpendicular that is the height of the triangle we have a 30 -60 90 triangle.

The hypotenuse = 8

Let, perpendicular = a and base = 4

According to Pythagoras theorem,

A right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

perpendicular²+base² = hypotenuse²

a² + (4)² = (8)²

a² + 16 = 64

a² = 64 - 16

a² = 48

a = √48

a = 4√3

Hence, the altitude of the triangle is 4√3

Learn more about the right triangle here:

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Examine triangle ABC.


Triangle A B C. Angle B is 79 degrees. Exterior angle to A is (x + 5) degrees and the exterior angle to C is x degrees. What is the value of x?

37

48

127

138

Answers

Answer:

x=127

Step-by-step explanation:

total sum of all angle of triangle is 180 degree

Now,

taking angle A let interior angle be Y

taking angle C let interior angle be Z

Again, In angle A

the sum of interior angle and exterior angle is 180 degree being staright line

Or, y+(x+5)=180

or,x+y=180-5

or, x+y=175

or,y=175-x --------eqn 1

In angle C

the sum of interior angle and exterior angle is 180 degree being staright line

or, x+z=180

or, z=180-x ----------eqn2

Again, In triangle ABC

total sum of all angle of triangle is 180 degree.

Angle A+ Angle B + AngleC=180

Or, y+79+z=180 -------eqn3

putting the value of eqn-1 and eqn-2 in eqn-3

Or, 175-x+79+180-x=180

Or, 431-180= 2x

Or, 254÷2=x

hence X= 127 degree

Answer:

c127

Step-by-step explanation:

if f(x)=3x+23, find the value of x so that f(x)=36
with steps please!

Answers

Answer: f(36)=131

Step-by-step explanation:

f(x)=3x+23

f(36)=3(36)+23

f(36)=108+23

f(36)=131

Answer:

131

Step-by-step explanation:

f(x)=3x+23 The first thing you do is plug in 36. so replace the X's with 36.

f(36)=3(36)+23 The second step is to multiple 3 times 36.

f(36)=108+23 The last step is to add 108 to 23.

F(36)=131

Find the maximum or minimum value of the parabola.
y = –2x^2 – 16x + 20

Answers

Answer:

y=-20x+20

Step-by-step explanation:

This is the answer :
Y=-2^2- 16x+20

ANSWER NEEDED ASAP
In the figure, line a and line b are parallel. Based on the figure, match each given angle with its congruent angles. angles congruent to ∠1 angles congruent to ∠2 angles congruent to ∠7 angles congruent to ∠6 ∠3,∠7,∠6 arrowRight ∠3,∠7,∠2 arrowRight ∠4,∠8,∠5 arrowRight ∠3,∠6,∠2 arrowRight

Answers

Answer:

angles 3, 7, and 6 are congruent to angle 2

angles 3, 7, and 2 are congruent to angle 6

angles 4, 8, and 5 are congruent to angle 1

angles 3, 6, and 2 are congruent to angle 7

Please mark Brainliest

Answer:

∠3,∠7,∠2 congrent to  6

∠3,∠7,∠6 congruent to 2

∠4,∠8,∠5  congruent to 1

∠3,∠6,∠2  congruent to 7

Step-by-step explanation:

This site shows the occupations with the highest expected growth rates over the period 2014 - 2024. Which occupation is expected to grow at the highest percentage increase? Is this occupation also expected to have the largest increase in the number of jobs? Explain. (site 1)

Answers

Answer:

the healthcare practitioners; and technical occupations.

Explanation:

According to data presented on the graphs, it is reasonable to conclude that the job groups with the highest expected growth rates over the period 2014 - 2024 are the Healthcare practitioners and the technical occupations; which is said to add a total of about 2.3 million jobs.

convert 4 5/6 into a decimal

Answers

Answer:

4.8333

Step-by-step explanation:

It is a repeating decimal. Hope it helps

The decimal form of the given fraction is 4.8333

What is decimal form?

Decimals are the numbers, which consist of two parts namely, a whole number part and a fractional part separated by a decimal point. For example, 12.5 is a decimal number.

Given that, convert 4 5/6 into a decimal,

The given mixed fraction is =

4 5/6

Converting into fraction,

29 / 6

Dividing 29 by 6, we get,

29 / 6 = 4.833

Hence, the decimal form of the given fraction is 4.8333

Learn more about decimal forms, click;

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the scale of a map says that 1 cm represents 5 km. what distance on the map (in centimeters) represents an actual distance of 45 kilometers?

Answers

Answer:

Step-by-step explanation:

1cm = 5km

?cm = 45km.

Solve by dividing 45 by 5.

If the distance is 45km, on the map this will be 9cm.

Convert 890 / 110 into a mixed number

Answers

Answer:

8 and 1/11.

Step-by-step explanation:

Answer:

8 1/11

Step-by-step explanation:

Hope this helps!!

Just in case :

(8 and 1/11)

Im Trying to figure out what the x is? Here is the problem:
-54/x=-6? If anyone could help that would be awesome!!!

Answers

X=-9
Pls mark me brainliest

Answer:

9

Step-by-step explanation: you do

54 divided by 6 and get 9 and because 54 is negative then that means your answer will be negative so I am pretty sure the answer you are looking for is 9. :)

When finding the slope, it is important to identify _____ coordinates.

A. estimated
B. exact
C. any ​

Answers

Answer:

b the exact coordinates

Mr. Willy Wonka made gobstoppers to sell as a new candy from his marketing department.
Mr. Michals helped by donating three additional gobstoppers to his collection. Each gobstopper
was then cut into six pieces and sold. There were a total of 72 pieces to sell. How many
gobstoppers did Mr. Willy Wonka make?

Answers

Answer:

12

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

Write the number in standard form. One hundred forty million, six hundred eighty-seven

Answers

Answer:

140,000,687

Step-by-step explanation:

Calcuta eI 25%,35% y el 75% de 1250.​

Answers

Answer:

25% of 1250 = 312.5

35% of 1250 = 437.5

75% of 1250 = 937.5

Step-by-step explanation:

1250/100 = 12.5

12.5 * 25 = 312.5

12.5 * 35 = 437.5

12.5 * 75 =  937.5

the function g(x) represents f(x)=9 cos (x-pi/2)+3 after translating pi/6 units left and 4 units up. which equation represents g(x)?

g(x)= 9 cos (x - 2pi/ 3) -1

g(x)= 9 cos (x - 2pi/3) +7

g(x)= 9 cos (x - pi/3) +7

g(x)= 9 cos (x - pi/3) -1

Answers

Answer:

g(x)= 9 cos (x - [tex]\frac{\pi}{3}[/tex]) +7

Step-by-step explanation:

What is given is f(x) = g cos (x - pi/2) + 3

Note that the standard form of cosine function is a cos (bx + c) + d

a= amplitude

-c/b = phase shift

d = vertical shift

After moving pi/6 to the left --

x = pi/2 - pi/6 = pi/3

once moving pi/6 left, it is at pi/3

moving 4 units up just means adding 4 + 3, and that equals 7, that would be the vertical shift once applied.

So the equation that represents g(x) is C. 9 cos (x - pi/3) + 7

The equation that represents the function g(x) is [tex]g(x)=9 \cos (x- \frac{\pi}{3})+7[/tex]

The function is given as:

[tex]f(x)=9 \cos (x-\frac{\pi}{2})+3[/tex]

The function f(x) is first translated [tex]\frac{\pi}{6}[/tex] units left.

The rule of this translation is:

[tex](x,y) \to (x + \frac{\pi}{6},y)[/tex]

So, we have:

[tex]f'(x)=9 \cos (x+ \frac{\pi}{6}-\frac{\pi}{2})+3[/tex]

Take LCM

[tex]f'(x)=9 \cos (x+ \frac{\pi - 3\pi}{6})+3[/tex]

[tex]f'(x)=9 \cos (x- \frac{2\pi}{6})+3[/tex]

Divide 2 by 6

[tex]f'(x)=9 \cos (x- \frac{\pi}{3})+3[/tex]

Next, we translate f'(x) 4 units up.

The rule of this translation is:

[tex](x,y) \to (x,y+4)[/tex]

So, we have:

[tex]g(x)=9 \cos (x- \frac{\pi}{3})+3 +4[/tex]

[tex]g(x)=9 \cos (x- \frac{\pi}{3})+7[/tex]

Hence, the equation that represents the function g(x) is [tex]g(x)=9 \cos (x- \frac{\pi}{3})+7[/tex]

Read more about function transformation at:

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y=1/2(x+4)(x-2) vertex

Answers

Answer:

            (-1, -4.5)

Step-by-step explanation:

[tex]y=\frac12(x+4)(x-2)\quad\implies\quad x_1=-4\,,\ \ x_2=2[/tex]

vertex is (p, q) where:

[tex]p=\dfrac{x_1+x_2}2=\dfrac{-4+2}2=\dfrac{-2}2=-1\\\\q=f(p)=\frac12(-1+4)(-1-2)=\frac12(3)(-3)=-\frac92=-4.5[/tex]

So the vertex is: (-1, -4.5)

Hanna is building a fence. She will use the house for one side of the fence as shown in the scale drawing below

Answers

Answer:

Step-by-step explanation:

I dont see the drawling...

first person to answer gets brainllest A regular hexagon and a rectangle have the same perimeter, P. A side of the hexagon is 4 less than the length, l, of the rectangle. The width of the rectangle, w, is 2 less than the length of the rectangle. What is the perimeter of the hexagon?

Answers

Answer:

Perimeter of the hexagon is 36 units

Step-by-step explanation:

if the length is ten using the information provided you  will get a perimeter of 36 for both

Answer:

36

Step-by-step explanation:

Hope it helps :)

Brainliest pls?

THINK SMARTER Margot wants to use partial products to find 22 X 17.
Write the numbers in the boxes to show 22 X 17-

Answers

Answer:

( 20 × 10 ) + ( 20 × 7 ) + ( 2 × 10 ) + ( 2 × 7 )

Step-by-step explanation:

To create partial products when multiplying two numbers, first break the numbers up into a sum of two numbers. The order that these numbers are multiplied does not necessarily matter as long as they are multiplied with the correct numbers.

22 × 17 = (20 + 2)(10 + 7) = 20 (10 + 7) + 2 (10 + 7) =

( 20 × 10 ) + ( 20 × 7 ) + ( 2 × 10 ) + ( 2 × 7 )

= 374

You can check this method works by using your calculator, and multiplying 22 by 17 to get 374 again!

Then just add like you would if when you distribute.

Remember FOIL (First, Outer, Inner, Last)

when multiplying two binomials(2 terms) or distributing factors with two terms.

For example:

(a + b)(c + d) =

F F

O O

I I

L L

(a × c) + (a × d) + (b × c) + (b × d)

- 6n - 16 = 20 what does n =?

Answers

Answer: the answer is -6

use symbolab

What is the greatest common factor of 42 and 14?

Answers

It is 14 because if you do prime factorization:

14 = 2 x 7

42 = 2 x 3 x 7

They have the factors 2 and 7 in common.

2 x 7 = 14.

Answer:

The GCF is 14!

Step-by-step explanation: Okay Lets multiply to get 42, 14 x 1 is 14, 14 x 2 is 28, 14 x 3 is 42! We also know that this is the GCF because 42 and 14 can both be divided by 14!

Tickets to an amusement park cost $35 for adults and $20 for children. The equation 35x+20y=140 shows how many adults x and children y can visit the amusement park with $140. If no children go, how many adults can go to the amusement park with $140?
A)7
B)5
C)4
D)2

Answers

Answer: Four adults

Step-by-step explanation: 4 x 35 = 140. There are no children, so you can just ignore 20y (I hope this helps!)

If no children will go to the amusement park then a total of 4 adults can go to the amusement park for $140. Hence, option C is correct.

What is an equation?

Equations are logical assertions in mathematics that have two algebraic expressions on either side of an equals (=) sign. The expression on the left and the expression on the right is shown to be equal in reference to one another. LHS = RHS (left hand side = right hand side) appears in all mathematical equations.

You can solve equations to determine an unknown variable's value, which corresponds to an unknown quantity. It is not an equation if there is no "equal to" sign in the statement.

The given equation is :

35x + 20y = 140

Cost of adults to go to the amusement park, (x) = $35 and,

Cost of children going to the amusement park, (y) = $20.

If no children are going to the amusement park, then the number of adults who can go to the park is :

35x + 20(0) = 140

35x = 140

x = 140/35

x = 4.

Hence, this concludes that option C is correct.

To get more information about Equations :

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how to do this question plz ​

Answers

Answer:

90(8) + 2(38) = 270 + 76 = 346p

Step-by-step explanation:

The empty gas tank of a motor boat is to be filled. The tank is shaped like a rectangular prism with length 32cm, width 28cm, and height 15cm. Suppose gas is pumped into the tank at a rate of 840cm3 per minute. How many minutes does it take to fill the empty tank?

Answers

it takes 17 mins to full in the tank

Can anyone help me? Worth 10 points!!!

Answers

Answer:

33

Step-by-step explanation:

Fabric for 1 pillow case: 1.5 ÷ 3 = 0.5Amount of pillow cases made with 16.5 yards of fabric: 16.5 ÷ 0.5 = 33

I hope this helps!

Answer:

33 pillowcases

Step-by-step explanation:

16.5 yard of fabric/ 1.5 yards of fabric = 11 yards of fabric

Multiply 11 (yards of fabric) by 3 (# of pillowcases) to get the number of pillowcases you can make with 16.5 yards of fabric.

11 * 3 = 3 pillowcases

I need help with this

Answers

Answer:

3 weeks.

Step-by-step explanation:

Answer:

3 weeks

Step-by-step explanation:

Hope this helps

Please help if possible thank you♥️

Answers

Answer:

B.

Step-by-step explanation:

16 * 4 = 64

The square root of 64 is 8, the square root of 16 is 4, and the square root of 4 is 2

4 * 2 = 8

Please mark Brainliest thank you!!

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