All categories

3 years ago

Identify the slope of the line for the equation y = −

Mathematics

1 answer:

Lunna [17]3 years ago

7 0

Answer:pretty sure it’s A. but the way you typed the things out I can’t tell

Step-by-step explanation:

You might be interested in

4x10^-6 + 6.8x10^7=

kirill115 [55]

I typed it in a calculator and got 68,000,000, so just correct me if im wrong.

4 0

3 years ago

delilah studies the wolf population of a nearby national park. She has calculated that the population decreased by 1.25% per yea

KATRIN_1 [288]

Step-by-step explanation:

i need time

i hope u may understand

8 0

3 years ago

Read 2 more answers

A rectangular yoga mat has a perimeter of 179 inches. The width of the mat is eight less than half the length. Find the width, i

lianna [129]

Answer:

The width is $24.5in$

Step-by-step explanation:

The perimeter of the rectangular yoga mat can be found using the formula;

$P=2l+2w$ .

$\Rightarrow 179=2l+2w...(1)$ .

It was given that the width of the mat is eight less than half the length.

$w=\frac{1}{2}l-8...(2)$

We put equation (2) into equation (1) to get;

$179=2l+2(\frac{1}{2}l-8)$ .

$\Rightarrow 179=2l+l-16$ .

$\Rightarrow 179+16=2l+l$ .

$\Rightarrow 3l=195$

Divide both sides by 3;

$l=65$

We put $l=65$ into equation 2 to get;

$w=\frac{1}{2}\times65-8$

$w=32.5-8$

$w=24.5in$

4 0

3 years ago

SOMEONE PLEASE HELP I will mark you BRAINLIST

bazaltina [42]

Answer:

20 degrees

Step-by-step explanation:

both triangles are co friend and 90+70=160 180+160=20

5 0

2 years ago

Read 2 more answers

Bill Ding plans to build a new hardware store. He buys a rectangular lot that is 50 ft by 200 ft, the 50-ft dimension being alon

enot [183]

Answer:

Length a = 59.62

Width b = 67.09

Cost = $10,734.4

Step-by-step explanation:

Solution:

Let a be the length and b be the width.

Area of the rectangle = a x b

a x b = 4000

Cost of the construction:

Cost = 100a + 80(a + 2b)

Cost = 100a + 80a + 160b

Cost = 180a + 160b Equation of the Cost of the construction.

Now, we need a and b to calculate the minimum cost required to build a lot.

From the area = a x b

we have,

a x b = 4000

b = 4000/a

Putting this equation into the cost of the construction.

We get:

Cost = 180a + 160 x (4000/a)

Cost = 180a + 640000/a

Differentiating with respect to a, we get

$C^{'}$ = 180 - 640000/ $a^{2}$

Putting $C^{'}$ = 0

180 - 640000/ $a^{2}$ = 0

Taking LCM

180 $a^{2}$ - 640000 = 0

Solving for a

180 $a^{2}$ = 640000

$a^{2}$ = 640000/180

$a^{2}$ = 3555.55

Taking square root

a = 59.62

As we know,

b = 4000/a

putting the minimum value of a = 59.62

b = 4000/59.62

b = 67.09

So, now we have both the dimensions a and b

Putting the values of a and b we will get the cost of the construction.

Cost = 180a + 160b

Cost = 180(59.62) + 160(67.09)

Cost = $10,734.4

Hence, $10,734.4 will be the minimum cost of the construction for Bill Ding.

5 0

2 years ago