PLEASE HELP ME IM BEGGING

Answer:

129 ?

Step-by-step explanation:

.

Answer:

3

Step-by-step explanation:

To find the rate of change, we want to use the slope formula: (y₂ - y₁) / (x₂ - x₁)

Plug in these values using two given points. I will use the first and last points.

(1, -2) & (13, 34)

(34 - (-2)) / (13 - 1)

Simplify the parentheses.

= (34 + 2) / (12)

= 36/12

Simplify the fraction.

36/12

= 3

This is your slope.

Hope this helps!

Answer:

•cos(s+t) = cos(s)cos(t) - sin(s)sin(t) = (-⅖).(-⅗) - (√21 /5).(⅘) = +6/25 - 4√21 /25 = (6-4√21)/25

•cos(s-t) = cos(s)cos(t) + sin(s)sin(t) = (-⅖).(-⅗) + (√21 /5).(⅘) = +6/25 + 4√21 /25 = (6+4√21)/25

cos(t) = ±√(1 - sin²(t)) → -√(1 - sin²(t)) = -√(1 - (⅘)²) = -⅗

sin(s) = ±√(1 - cos²(s)) → +√(1- cos²(s)) = +√(1 - (-⅖)²) = √21 /5

Answer:

5

Step-by-step explanation:

Given the profit equation ;P(x)

x = number of units sold

P(x) = profit made

P(x) = 101

101 = 0.2x^2+20x-4

0.2x^2+20x-4 - 101

0.2x² + 20x - 105 = 0

Using the formula:

-b±[sqrt(b² - 4ac) / 2a]

Where ;

a = 0.2 ; b = 20, c = - 105

Using the quadratic equation solver to save time :

The roots are :

-105 and 5

Items sold cannot be negative ;

Hence, x = units sold = 5

Answer:

Rational numbers can be expressed as a fraction

Squared 5 = 25

25 can be expressed as  a  fraction- 25/1, so d is correct.

Let me know if this helps!

5 squared is right im sorry i miss read it

Given:

A recipe uses 4 pounds of rice and 5 quarts of boiling water.

To find:

The rate of rice to quarts of water for this recipe.

Solution:

We need to divide the amount of rice by amount of water to get the rate of rice to quarts of water for this recipe.

[tex]\text{Required rate}=\dfrac{\text{Rice in pounds}}{\text{Water in quarts}}[/tex]

[tex]\text{Required rate}=\dfrac{4}{5}[/tex]

[tex]\text{Required rate}=0.8[/tex]

Therefore, the  rate of rice to quarts of water for this recipe is 0.8.

Answer:

I know this

Step-by-step explanation:

but I dont :) goodluck tho

Answer:

18

Step-by-step explanation:

Answer:

26.5

Step-by-step explanation:

The table shows that 1/2 of all the students surveyed have one pet.

[tex]53 \times \frac{1}{2} = 26.5[/tex]

Answer:

216

Step-by-step explanation:

1 yard = 36 inches

so 6 yards would equal : 6 x 36 = 216 inches

Thus 216 strips would be cut

Step-by-step explanation:

D) 72 strips

Answer:

The mean is 128.7

There is no mode

The median is 9

The range is 11.5

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

0.00852 miles per hour

Step-by-step explanation:

Given that:

Distance = 7.5 feets

Time taken = 10 minutes

Speed = distance / time taken

Speed = 7. 5 feets / 10 minutes = 0.75 feets / minutes

Converting to miles per hour :

0.75 feets / minute :

1 mile = 5280 feets

1 minute = 1/60 = 0.0166666 hour

0.75 feets / minute = (0.75/5280)mile / 0.0166666

= 0.0001420 / 0.0166666 mile per hour

= 0.0085200 miles per hour

= 0.00852 miles per hour

Answer:

65 meters

Step-by-step explanation:

you add all the side/numbers together

Answer:

X= 20 or -5

Step-by-step explanation:

Answer:

Infinately many solutions.

Step-by-step explanation:

2x-4=2(x-2)

Distribute

2x-4=2*x-2*2

2x-4=2x-4

Since both sides are the same, there are infinately many solutions.

Hope this helps!

Answer:

8 1/8 hours

Step-by-step explanation:

Jerry played with 3 friends today, all at different times.

Tommy = 1 7/8 hours

Nathan = 1 3/4 hours

Chris = 3 3/2 hours

How many hours did Jerry play with his 3 friends today?

Number of hours Jerry play with his 3 friends today = 1 7/8 + 1 3/4 + 3 3/2

= 15/8 + 7/4 + 9/2

= (15+14+36)/8

= 65/8

= 8 1/8 hours

Answer:

y = 10.5qt

x = 12 qt

Step-by-step explanation:

0.6x+ 0.36y = 22.5 * 0.2

0.06x + 0.36y = 4.5

x + y = 22.5

x = 22.5 - y

0.06(22.5 - y) + 0.36y = 4.5

1.35 - 0.06y + 0.36y = 4.5

0.3y = 4.5 - 1.35

0.3y = 3.15

y = 3.15 / 0.3

y = 10.5 qt

x = 22.5 - y

x = 22.5 - 10.5

x = 12 qt

Answer:

17 ft

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

100/4 = 25%

24/4 = 6

Answer:

Note that the three identities above all involve squaring and the number 1.You can see the Pythagorean-Theorom relationship clearly if you consider the unit circle, where the angle is t, the "opposite" side is sin(t) = y, the "adjacent" side is cos(t) = x, and the hypotenuse is 1.. We have additional identities related to the functional status of the trig ratios:

Step-by-step explanation:

Answer:Surface area is the sum of the areas of all faces (or surfaces) on a 3D shape. A cuboid has 6 rectangular faces. ... We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area.

https://youtu.be/sskf3tF2heU?t=8

Answer:

trapezoid.

Step-by-step explanation:

A trapezoid is a convex quadrilateral. A trapezoid has at least on pair of parallel sides. the parallel sides are called bases while the non parallel sides are called legs

Characteristics of a trapezoid

It has 4 vertices and edges

If both pairs of its opposite sides of a trapezoid are parallel, it becomes a parallelogram

Area of a trapezoid = [tex]\frac{1}{2}[/tex] x (sum of the lengths of the parallel sides) x height

Perimeter =  sum of lengths of sides of a trapezoid

Answer:

12 x 12 = 144 divided by 2 = 72, 72 is your answer formula of a triangle: BH x 1/2

Step-by-step explanation:

72 square cm

Answer:

It's the fourth one y=-1/6x+2/3

Step-by-step explanation:

Answer:

150 miles

Step-by-step explanation:

x = 30y

5 inches x 30 = 150 miles