Help me! Another question on khan.

Answer:

86.8 m long

Step-by-step explanation:

A pole that is 2.5 m tall casts a shadow that is 1.34 m long. At the same time, a nearby building casts a shadow that is 46.5 m long. How tall is the building? Round to the nearest meter

We solve the above question using the Proportion formula:

Height of the pole/Shadow of the pole = Height of the building /Shadow of the building

Height of the pole = 2.5m

Shadow of the pole = 1.34 m

Height of the building = x

Shadow of the building = 46.5m

Hence:

2.5m/1.34m = x/46.5m

Cross Multiply

1.34m × x = 2.5m × 46.5m

x = 2.5m × 46.5m/1.34m

x = 86.753731343m

Approximately , The height of the building = 86.8 m

[tex]\large\underline\red{\sf \implies Solution :- }[/tex]

1) A figure formed by line segments only is called a polygon .

2) Perimeter of a regular polygon is Number of sides × Measure of each side .

3) Perimeter of a irregular polygon is sum of all sides .

4) Two circles with same centre but different radii is called Concentric circles.

5) Ratio of circumference of circle to its diameter is pie and is named by Greek letter π .

6) Distance around the circle is called circumference.

7) A chord of the circle contains exactly two points on a circle.

8) 1 hectare = 10,000 m²

Answer:

they add up to 75 degrees

Step-by-step explanation:

the interior angles of a triangle always have to total to 180 degrees, so if one of them is 105 the other two are 180 - 105 = 75 degrees

Answer:

Each angle could possibly be 37.5

Step-by-step explanation:

the sum of all the angles inside a triangle is 180 degrees. If one angle is 105, then we take 105 from 180

180 - 105 = 75

75 is the measure of all the missing angles. since there are two missing angles, we can divide 75 by two for the two angles

75 divided by two is 37.5

Answer:

a=-6

Step-by-step explanation:

p^a=1/p^6

= p^-6 ( a^-b=1/a^b)

since p^a=p^-6

a= -6

Step-by-step explanation:

can be written as

(law of indices)

i.e a = -6

Answer:

4

Step-by-step explanation:

95 - 12.25 = 82.75

82.75 ÷ 17 = 4.867

Answer: A We round the number up to the nearest hundred if the last two digits in the number are 50 or above.

Step-by-step explanation:

Answer:

It began after the stock market crash of October 1929, which sent Wall Street into a panic and wiped out millions of investors. Over the next several years, consumer spending and investment dropped, causing steep declines in industrial output and employment as failing companies laid off workers.

Answer:

1st one

Step-by-step explanation:

Answer:

a = 7.4

b = 9.6

Step-by-step explanation:

set up a proportion to find 'b':

XN / NY = MN / NO

8/b = 13/(b+6)

cross-multiply:

13b = 8(b+6)

13b = 8b + 48

5b = 48

b = 9.6

set up a proportion to find 'a':

XN / XY = MN / MO

8/a = 13/12

cross-multiply:

13a = 96

a ≈ 7.4

Answer:

Step-by-step explanation:

I think it’s b correct me if I’m wrong

Answer:

I think it is b im pretty sure

Answer:

La edad del abuelo es 75 años y la tuya es de 15 años.

Step-by-step explanation:

Si dentro de 5 años tu abuelo (A) tendrá el cuádruple de tu edad (E), tenemos:

[tex] A + 5 = 4(E + 5) [/tex]  (1)

Ahora, si hace cinco años tenia siete veces tu edad:

[tex] A - 5 = 7(E - 5) [/tex]    (2)

Multiplicando la ecuacion (1) por -1, tenemos:

[tex] -A - 5 = -4(E + 5) [/tex]   (3)

Ahora sumando la ecuación (3) con (2):

[tex] -10 = 3E - 55 [/tex]

[tex] E = 15 [/tex]

Entonces, reemplazando el valor de E en la ecuación (1):

[tex] A + 5 = 4(15 + 5) [/tex]

[tex] A = 75 [/tex]

Por lo tanto, la edad del abuelo es 75 años y la tuya es de 15 años.

Espero que te sea de utilidad!                                                          

Answer:

30

Step-by-step explanation:

\text{Legs: 18, 24}\hspace{20px}\text{Hypotenuse: ?}

Legs: 18, 24Hypotenuse: ?

a^{2}+b^{2}=

a

2

+b

2

=

\,\,c^{2}

c

2

The Pythagorean Theorem

18^{2}+24^{2}=

18

2

+24

2

=

\,\,c^{2}

c

2

Plug in. c is the hypotenuse.

324+576=

324+576=

\,\,c^{2}

c

2

Square the numbers.

900=

900=

\,\,c^{2}

c

2

Add.

\sqrt{900}=

900

​

=

\,\,\sqrt{c^{2}}

c

2

​

Square root both sides.

30=

30=

\,\,c

c

The hypotenuse.

Answer:

The answer is -37x - 48

Answer: A. Amount of each cashed check.

Step-by-step explanation:

145.95 - 2x = -4.05

2x=150

X=75

Answer:

hhhhs jjeguuw iiwhrbmeo

Answer:

5822j-15972

Step-by-step explanation:

Answer:

5822j-15972

Step-by-step explanation:

Answer:

3[tex]\sqrt{5}[/tex]

Step-by-step explanation:

Calculate the distance d using the distance formula

d = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }[/tex]

with (x₁, y₁ ) = (5, 4) and (x₂, y₂ ) = (- 1, 1)

d = [tex]\sqrt{(-1-5)^2+(1-4)^2}[/tex]

   = [tex]\sqrt{(-6)^2+(-3)^2}[/tex]

   = [tex]\sqrt{36+9}[/tex]

   = [tex]\sqrt{45}[/tex]

   = 3[tex]\sqrt{5}[/tex] ← exact value

   ≈ 6.71 ( to 2 dec. places )

Answer:

i belive the answer is c because they always try and trick you making you choose the wrong one and all the evidence cites that it could be c!!

Step-by-step explanation:

Answer:

$20.88

Step-by-step explanation:

Answer:

$20.88

Step-by-step explanation:

4.35 / 5 = 0.87

0.87 x 24 = 20.88

Complete question :

Kendall is making cupcakes for a party. She uses 1/8 of a 4-pound bag of sugar to make a batch of cupcakes. Each batch has 24 cupcakes.

Drag one expression next to each question. The correct expression for each row is a way to answer that question.

How many pounds of sugar does Kendall use for a batch of cupcakes?

How many pounds of sugar are used for each cupcake?

Answer:

1/8 * 4 = 0.5

0.5 ÷ 24 = 0.0020833 pounds

Step-by-step explanation:

The amount of sugar in pounds used for a batch of cupcake is : 1/8 of 4 pounds

1/8 * 4 pounds

= 0.5 pounds

Pounds of sugar used for each cupcake :

Number of cupcakes per batch = 24

Pounds of sugar per cupcake :

Pounds of sugar per batch / number of cupcakes per batch

0.5 pounds / 24

= 0.0020833 pounds

She had hiccups so she ordered a glass of water. The man noticed so he pulled out a gun to give her a scare. Being startled is said to make hiccups stop. Therefore, she thanked him for ending her hiccups and left.

Answer:

[tex]\frac{9}{64}[/tex]

Step-by-step explanation:

Probability refers to chance of occurrence of any event.

Probability that each of them is germinates [tex]=\frac{3}{4}[/tex]

So,

Probability that each of them is germinates won't germinate [tex]=1-\frac{3}{4}=\frac{1}{4}[/tex]

Probability that only one of them will germinate = [tex]=\frac{3}{4}(\frac{1}{4})^2=\frac{9}{64}[/tex]

Answer:

Yes it would

Step-by-step explanation:

Lanie's room is in the shape of a parallelogram.

Lanie has a rectangular rug that is 6 feet wide and 10 feet long.

Area of a rectangle = Length × Width

Area of the rectangular rug = 10 feet × 6 feet

= 60 square feet

We are told that:

The floor of her room is shown below and has an area of 108 square feet.

Hence, the rug would fit on the floor of her room because it's area is within the area of the floor of her room.

Answer:

D)0.47160

Step-by-step explanation:

I think correct me of I'm wrong

Answer:

You are 8 hours apart and it would be 6am for them

Step-by-step explanation:

You guys are 8 hours apart because thats the hour difference, so you add 8 to 10pm getting 6am

Answer:

You are 8 hours apart

Step-by-step explanation:

If it was 10pm for you it would be 6 am for him

Answer:

We conclude that the value of k represented as a decimal rounded to the nearest tenth is:  [tex]k = 16.8[/tex]

Step-by-step explanation:

Given the expression

[tex]\frac{5}{7}=\frac{12}{k}[/tex]

We need to determine the value of k, represented as a decimal rounded to the nearest tenth.

Let us solve the expression

[tex]\frac{5}{7}=\frac{12}{k}[/tex]

Apply cross-function multiply:   if [tex]\frac{a}{b}=\frac{c}{d}[/tex]  then [tex]a\cdot \:d=b\cdot \:c[/tex]

[tex]5k=7\cdot \:12[/tex]

[tex]5k=84[/tex]          ∵ 7 · 12= 84

Divide both sides by 5

[tex]\frac{5k}{5}=\frac{84}{5}[/tex]

Simplify

[tex]k=\frac{84}{5}[/tex]

[tex]k = 16.8[/tex]    (Rounded to the nearest 0.1 or  the Tenths Place)

Therefore, we conclude that the value of k represented as a decimal rounded to the nearest tenth is:   [tex]k = 16.8[/tex]

Answer:

8(n/4)

Step-by-step explanation:

Multiply out the things in the brackets.

3+7(x+5)=2x+16

3+7x+35=2x+16

Bring the x's over to one side and the numbers to the other side.

7x-2x=16-35-3

5x= -22

Answer:

Hi how are you

Step-by-step explanation:

i thhink the answer is B if im wrong im srry

Answer:

i think it would be the first answer which is, 173 units