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3 years ago

35 POINTS PLEASE HURRY!!!!!

Mathematics

1 answer:

andreyandreev [35.5K]3 years ago

8 0

Answer:

where is the question m8

Step-by-step explanation:

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Write an equation of the line that passes through the points (-1, -2) and (2.4)

Lelu [443]

Answer:

As eq of line passing through 2 points is

y-y1 = (y2-y1)/(x2-x1) ][ x -x1)

where (X1,y1)( x2, y2) denotes points lying on line

substitute (X1 ,y1) by( -1,-2) and (X2,y2) by( 2,4)

y+2 = 6/3 )( x+1)

y+2= 2x +2

y = 2x is required equation

3 0

4 years ago

A bouquet of flowers contains a total of 24 red and white roses. The number of red roses is 4 less than three times the number o

geniusboy [140]

Answer:

White roses - 7

Red roses - 17

Step-by-step explanation:

Set up proportional equations

White roses = x

Red roses = 3x - 4

Set equal to 24

x + 3x - 4 = 24

4x - 4 = 24

4x = 28

x = 7

x is white roses, so there are 7

Plug x value into red rose equation

3(7)-4

21-4 = 17 red roses

Check

17+7 = 24

5 0

3 years ago

Use the Pythagorean Theorem to find which one of the

marissa [1.9K]

<h3>Hello There!!</h3>

<h3><u>Given</u>:-</h3>

Altitude (AB) = 9cm

Base (BC) = 12cm

Hypotenuse (AC) = ?

$\fbox \text{According To Pythagoras Theorem = }$

$\text{(Hypotenuse)² = (Altitude)² + (Base)²}$

Inserting The Values

$\text{(Hypotenuse)²} =( {9})^{2} + (12) {}^{2} \\ \\ \implies \text{(AC)} {}^{2} = 81 + 144 \\ \\ \implies \text{(AC}) {}^{2} = 225 \\ \\ \implies \text{AC} = \sqrt{225} \\ \\ \implies \text{AC} = 15$

$\therefore \text{Hypotenuse \: (AC)} = 15 \text{cm}$

Option B= <em>15cm</em> is the <u>correct answer</u>

<h3>Hope This Helps</h3>

8 0

3 years ago

One serving of soybeans contains 14 grams of protein and 8 grams of fat. One serving of rice contains 4 grams of protein and 1/2

mina [271]

Answer: 1.8 servings of soybean and 1.2 servings rice will be needed.

Step-by-step explanation:

Let x be the number of soybeans and y be the number of rice.

Then , According to the question , we have

$14x+4y=30\\\Rightarrow\ 7x+2y=15..................................(1)\\\\ 8x+\frac{1}{2}y = 15\\\Rightarrow\ 16x+y=30.............................(2)$

Multiply 2 on both the sides of equation (2), we get

$32x+2y=60................................(3)$

Subtract equation (2) from equation (3), we get

$25x=45\\\\\Rightarrow\ x=1.8$

Put x = 1.8 in equation (2), we get

$16x+y=30\\\\\Rightarrow\ y=30-16x\\=30-16(1.8)=1.2$

Hence, 1.8 servings of soybean and 1.2 servings rice will be needed.

8 0

4 years ago

Alice bought 18 toys, 48 books and 54 crayons to make boxes for a charity. She wants to use all of them in such a way that each

Strike441 [17]

Answer:

There would be 6 boxes, each with 3 toys, 8 books and 9 crayons.

Step-by-step explanation:

Find the greatest common factor of 18, 48 and 54 (the toys, books and crayons).

18 = 2*3*3

48 = 2*2*2*2*3

54 = 2*3*3*3

All of them have at least one 2 and one 3.

The greatest common factor is 6 because 2*3 is 6.

There will be 6 boxes.

The number of each item is the total items divided by number of boxes.

18/6 = 3

48/6 = 8

54/6 = 9

There would be 3 toys, 8 books and 9 crayons in each box.

5 0

3 years ago