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bearhunter [10]

3 years ago

7

Use this diagram to answer the questions

1 answer:

Ganezh [65]3 years ago

3 0

B but not sure probably wrong

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I need the answer for both of these I'm confused

love history [14]

For the first one it is yes because if he loses 300 points, the absolute value of -300 is 300 and if he wins 300 points, the absolute value of 300, is 300.
For the second one it could be 300 and -300.

6 0

3 years ago

Given: BD = BF DE ⊥ BC , FK ⊥ AB Prove: ED ≅ FK

sergeinik [125]

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8 0

3 years ago

Read 2 more answers

if the perimeter of a rectangle is 6984 and the width of the perimeter is 3 times smaller than the length. What is the length an

jok3333 [9.3K]

W - the width
l - the length

P = 6984

P = 2w + 2l

l = 3w

substitute

2w + 2 · 3w = 6984
2w + 6w = 6984
8w = 6984 |:8
w = 873

l = 3 · 873 = 2619

Answer: the length = 2619 and the width = 873

6 0

3 years ago

A rectangular parking lot has an area of 315 square yards. The width of the parking lot is 5 yards longer than the length of the

Blababa [14]

Answer:

Dimension of parking lot is approximately 15.425 × 20.425 yards.

Step-by-step explanation:

Given:

Area of the parking lot = $315 \ yd^2$

Let the length of the parking lot be $'l'$

Also Given:

The width of the parking lot is 5 yards longer than the length of the parking lot.

so we can say that;

width of the parking lot, $w=5+l$

We need to find the dimension of parking lot.

Solution:

Now we can say that;

Area of rectangle is equal to length times width.

framing in equation form we get;

$lw=315$

Now substituting the value of w in above equation we get;

$l(l+5)=315\\\\l^2+5l=315\\\\l^2+5l-315=0$

Now we will find the roots using quadratic equation.

$ax^2+bx+c =0$

a = 1

b=5

c=-315

Formula for quadratic equation is;

$l =\frac{-b\±\sqrt{b^2-4ac}}{2a}$

First we will find;

$\sqrt{b^2-4ac} = \sqrt{5^2-4\times1\times-315} =\sqrt{25+1260}=\sqrt{1285} \approx35.85$

Now we will substitute the value we get;

$l =\frac{-5\±35.85}{2\times1}= \frac{-5\±35.85}{2}$

Now we will find 2 roots we get;

$l= \frac{-5+35.85}{2}= \frac{30.85}{2}\approx15.425\\\\OR\\\\l =\frac{-5-35.85}{2}= \frac{-40.85}{2} \approx -20.425$

Now we get 2 values of length one is positive and other is negative.

But length of parking lot cannot be negative hence we will discard the negative value.

Hence the length of the parking lot = 15.425 yards

Width of the rectangular parking lot = $l+5=15.425+5 =20.425$

Hence we can say that dimension of parking lot is approximately 15.425 × 20.425 yards.

3 0

3 years ago

Maria's favorite candy bar has 230 calories.The nutrition label states that 7/8 of the calories come from fat.How many calories

pentagon [3]

230/8= 28.75
28.75x 7= 201.25
201.25 calories come from fat.

7 0

3 years ago