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3 years ago

12

Mark has a jar of marbles. The jar contains 1 red marble, 2 green marbles, 15 yellow marbles, and 11 blue marbles. Without looki

ng, Mark chooses a marble from the jar. Which statement is true?

2 answers:

Sphinxa [80]3 years ago

6 0

Answer:

24

Step-by-step explanation:

Vitek1552 [10]3 years ago

4 0

Answer:what are that statements

Step-by-step explanation:

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A farmer has 1,800 feet of fencing and wants to fence off a rectangular field that borders a straight river. he needs no fence a

astra-53 [7]

There are 2 short sides x and 1 long side y.

x+x+y=1,800
2x+y=1,800
y=1,800-2x

The area of the rectangle is A=x(1,800-x).

A is a function with variable x. Moreover it is a quadratic (second degree) function.

The graph of the function is a parabola which opens downwards, because the signs of the leading coefficients of the factors, multiply to minus:

(x)(-x)=-x^2.

This means that the highest point of the parabola, is its vertex V(h,k), so the function takes its largest value for x=h.

The roots of A=x(1,800-x) are x=0 and x=1,800, thus the x coordinate of the vertex, must be the midpoint of 0 and 1,800, that is 900.

Answer:

A=x(1,800-x)

largest area is when x=900

4 0

3 years ago

Read 2 more answers

Guess the number pleaseeee

MaRussiya [10]

I might be wrong but 9

9*2=18
18+7= 25
25 square root = 5

Answer is 9

7 0

2 years ago

A recipe calls for 3 times as many chocolate chips as butterscotch chips. If there are 25 oz of chocolate chips, how many oz do

schepotkina [342]

The amount of butterscotch chips needed by proportional reasoning according to the task content is; 75oz.

<h3>What is the quantity of butterscotch chips needed according to the task content?</h3>

It follows from the task content that the proportion premise given is that; 3 times as many chocolate chips as butterscotch chips is required.

On this note, it follows that when 25oz of chocolate chips is needed, the number of butterscotch chips needed will be; 3 × 25oz

= 75oz of butterscotch chips.

Read more on proportions;

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8 0

1 year ago

Jerry planted a pine tree that was 5 feet tall and a maple tree that was 10 feet tall. The pine tree grew 3 feet taller per year

stich3 [128]

The initial length of the pine tree=5 feet.

Groth rate of pine tree =3 feet/year.

The initial length of the pine tree =10 feet.

Groth rate of the maple tree =2 feet/year.

After x years, the height of the pine tree= 5+3x feet and

after x years, the height of the maple tree= 10+2x feet.

The inequality for which, after x year, the pine tree is taller than the maple tree is

$5+3x>10+2x$

$\Rightarrow x>5$ .

The inequality for which, the pine tree is at least as tall as the maple tree is $5+3x\geq10+2x$ .

$\Rightarrow x\geq 5$ .

Again, after 3x years, the height of the pine tree= 5+3(3x)=5+9x feet and

after 2x years, the height of the maple tree= 10+2(2x)=10+4x feet.

The inequality for which, after 3x years, the pine tree is taller than the maple tree was after 2x years is

$5+9x>10+4x$

$\Rightarrow 5x>5$

$\Rightarrow x>1.$

The inequality for which, the pine tree is at least as tall as the maple tree is $5+9x\geq10+4x$ .

$\Rightarrow 5x\geq5$

$\Rightarrow x\geq 1.$

5 0

3 years ago

Given the length of three sides of a triangle, which is a right triangle?

RSB [31]

The aides of a right triangle will always satisfy the Pythagorean relationship ...

   a² + b²= c²

We can take each of these and try it out:

(1) ... 10² + 24² = 100 + 576 = 676
   √676 = <em>26 Yes</em>.

(2) ... 12² + 18² = 144 + 324 = 468
   √468 = 21.6, not 20. <em>No.</em>

(3) ... 15² + 26² = 225 + 676 = 901
   √901 = 30.017 Awfully close. As an engineer, I'll buy this one. <em>Yes.</em>

(4) ... 40² + 50² = 1,600 + 2,500 = 4,100
      √4,100 = 64.03, not 80.<em> No.</em>

8 0

2 years ago

Read 2 more answers