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2 years ago

Giving brainly for correct answer

Mathematics

2 answers:

lutik1710 [3]2 years ago

8 0

Answer: Hello there! Your answer for this question is option (D).

Step-by-step explanation: The answer is option (D) because there is 10 students that completed 10-19 problems and 8 students that completed 0-9 problems.

10 + 8 = 18

You are Welcome! :)

Mark me as Brainliest! :)

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horsena [70]2 years ago

7 0

Six (I’m putting this because there is a there is less than 20 characters)

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Help!! please! Will mark Brainliest!

Karo-lina-s [1.5K]

Answer:

A) 264 ft^2, 4 gallons

Step-by-step explanation:

Area of rectangle = 12 ft x 18 ft = 216 ft^2

Area of triangle = 1/2 (28- 18)(12) = 1/2(10)(12) = 60 ft^2

Area of window: 3 ft x 4 ft = 12 ft^2

Areas will be painting = (216 + 60) - 12 = 264 ft^2

1 gallon of paint will cover 70 ft^2 so 264 ft^2 / 70 ft^2 = 3.77 gallons

So Mr. Williams will need 4 gallons of paint to cover 264 square feet of his barn

7 0

2 years ago

Triangles Q R S and X Y Z are shown. Angles Q S R and X Z Y are right angles. Angles Q R S and X Y Z are congruent. The length o

kumpel [21]

Answer:

Three-fourths

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

∠QSR≅∠XZY ---> given problem

∠QRS≅∠XYZ ---> given problem

△QRS ~ △XYZ ----> by AA Similarity theorem

Remember that, if two triangles are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

That means

$\frac{QS}{XZ}=\frac{QR}{XY}=\frac{RS}{YZ}$

∠Q≅∠X

∠R≅∠Y

∠S≅∠Z

<em>In the right triangle XYZ</em>

Find the tangent of angle X

$tan(X)=\frac{YZ}{XZ}$ ---> opposite side angle X divided by adjacent side angle X

substitute the given values

$tan(X)=\frac{9}{12}$

Simplify

$tan(X)=\frac{3}{4}$

Remember that

∠Q≅∠X

$tan(Q)=tan(X)$

therefore

$tan(Q)=\frac{3}{4}$ ---->Three-fourths

7 0

2 years ago

Read 2 more answers

How many factors in the number 21 and is the number 21 a Prime or Composite?

anygoal [31]

Answer:

The prime factors of number 21 are: 3, 7 Determined equcation for number 21 factorization is: 3 * 7 Prime Factors Of 20 Prime Factors Of 22

Step-by-step explanation:

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2 years ago

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In the right triangle ABC shown to the right, what is the length of

Talja [164]

Check the picture below.

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2 years ago

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Y + 2 = -3/4 ( x +1 )

ivann1987 [24]

Answer:

Step-by-step explanation:

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2 years ago