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3 years ago

9

For every 10 students there needs to be 1 chaperone during the trip to the 5 museum. Which of the following ratios does not repr

esent the student to chaperone ratio.
1:10

10 to 1

10:1

10/1

Other:

1 answer:

kipiarov [429]3 years ago

6 0

1:10 does not represent the students to chaperone ratio because for every 10 students, there must be one chaperone.

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What is the area of the shaded portion of the circle?

SOVA2 [1]

Answer:

The first option is the correct one, the area of the shaded portion of the circle is

[/tex](5 \pi -11.6)ft^2[/tex]

Step-by-step explanation:

Let us first consider the triangle + the shadow.

The full area of the circle is the radius squared times pi, so

A= $(5 ft)^2 \cdot \pi \\25 ft^2 \cdot \pi$

Since $\frac{72^{\circ}}{360^{\circ}}=\frac{1}{5}$ , the area of the triangle + the shaded area is one fifth of the area of the whole circle, thus

$A_1=\frac{1}{5}25 ft^2 \cdot \pi\\ =5 ft^2 \cdot \pi$

If we want to know the area of the shaded part of the circle, we must subtract the area of the triangle from $A_1$ .

The area of the triangle is given by

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Thus the area of the shaded portion of the circle is

$A_1-A_{triangle}=5 \pi ft^2-11.6ft^2\\= (5 \pi -11.6)ft^2$

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3 years ago

Write this number in standard form.<br> sixty thousand twenty-two and five tenths

BabaBlast [244]

62,235 is the correct standard form

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3 years ago

Will give brainliest

andrey2020 [161]

Answer:

33.3 in²

Step-by-step explanation:

Apply the formula for finding the area of triangle that has an included angle and two given sides, which is, Area = ½*a*b*Sin*C

Where,

a = 7 in

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3 years ago

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KengaRu [80]

Answer:

The roots of given quadratic equation lies from $\begin{bmatrix}-2 , 3 \end{bmatrix}$

Step-by-step explanation:

Given as :

The quadratic equation is x² - x -6 = 0

The quadratic equation is in form of ax² + bx +c = 0

Let x1 and x2 be the roots of equation

Sum of roots

So, $x1 + x2 = \frac{-b}{a}$

And products of roots is x1 × x2 = $\frac{c}{a}$

So, $x1 + x2 = \frac{1}{1}$

Or, x1 + x2 = 1 ......A

And x1 × x2 = $\frac{-6}{1}$

Or, x1 × x2 = - 6

Now, (x1 - x2)² = (x1 + x2)²+ 4×x1×x2

Or, (x1 - x2)² = (1)²+ 4×6

Or, (x1 - x2)² = 25

So , x1 - x2 = $\sqrt{25}$ = 5 ......B

Now solve eq A and eq B

Or, (x1 + x2) + (x1 - x2) = 1 +5

Or, 2 x1 = 6

∴ x1 = 3 And x2 = - 2

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4 years ago

Explain how the architect created a scale drawing of the house. What scale did she use?

KonstantinChe [14]

Answer:

Scale used for drawing is 1 cm = 1.75 m

Step-by-step explanation:

An architect makes a scale drawing of a house.

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So, 4 cm = 7 m

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So, Scale: 1 cm = 1.75 m

So, Option B is correct

B)1 cm = 1.75 m

Hence scale used for drawing is 1 cm = 1.75 m

7 0

3 years ago

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