can anyone help me please? no links im finna cry

First things first.. What type of triangle

If u are taking about a normal triangle here is some:

∠60+∠60+∠60

∠30+∠90+∠60

∠11+∠82+∠87

Step-by-step explanation:

[tex]volume =\pi {r}^{2}h[/tex]

[tex]area = \pi {r}^{2} [/tex]

remember

[tex]\pi = 22 \div 7[/tex]

So, we will just place the area and equate it to the unknown volume including the height

1004.80 = 22/7 × 10× 10 × h

1004.80 = 314.26h

h = 3.197

Answer:

[tex]14130 {ft}^{3} [/tex]

Answer:

12x - 10 = 14.5x - 20

Step-by-step explanation:

Store A = $12 each and subtract 10

Store B = $14.5 each and subtract 20

Equation:

12x - 10 = 14.5x - 20

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

515

Step-by-step explanation:

5x 103 = C. 515

Answer:

C   19.2

Step-by-step explanation:

Corresponding parts have the same proportion

x/24 = 20.8/26

multiply both sides by 24

x = 20.8/26 * 24

x = 19.2

Answer:

C

Step-by-step explanation:

Since the triangles are similar then the ratios of corresponding sides are equal, that is

[tex]\frac{AC}{DF}[/tex] = [tex]\frac{AB}{DE}[/tex] , substitute values

[tex]\frac{x}{24}[/tex] = [tex]\frac{20.8}{26}[/tex] ( cross- multiply )

26x = 499.2 ( divide both sides by 26 )

x = 19.2 → C

Answer:

g= 1

Step-by-step explanation:

-3+5+6g=11-3g

-3+5=11-9g

-3-11+5=-9g

-9=-9g

1=g

you want to first isolate the variables on one side. from there you calculate all the real numbers together. then you divide the number being multiplied with teh variable by the number that was calculated on the other side.

Once you have a singluar amount of the variable, you know you have your answer.

Answer:

allen= y=3/2+2  billy= y= 3/2+4

Step-by-step explanation:

ok both of the equation are (almost) the same except for the y intercepts.

y=mx+b... you are learning about that hopefully!

so. each of their trees are growing by 3... feet I'll just say feet. that means the slope is three because they are each going up that much. you also have to pay attention to the fact that the year is going up by two, so your tree is actually growing by 1.5 (3 halves) feet each year. now you have to find the y intercept by back tracking. remember that the y intercept is where y is zero and x is whatever it is.

if you go back three on allen, the y intercept is 2 and if you go back on billy, the y intercept is 4.

as for the second question, the lines are parallel. they have the exact same slope so that means that they will never cross  because billy's line is higher then allens, billy's tree will always be higher

Answer:

The stone will hit the water after 3 seconds

Step-by-step explanation:

Given

[tex]y = -5x^2 + 10x +15[/tex]

Required

At what time will the stone enter the water

When the stone enters the water;

[tex]y = 0[/tex]

So, we have:

[tex]-5x^2 + 10x +15 = 0[/tex]

Divide through by -5

[tex]x^2 -2x -3 = 0[/tex]

Expand

[tex]x^2 +x -3x -3 = 0[/tex]

Factorize

[tex]x(x +1) -3(x +1) = 0[/tex]

Factor out x + 1

[tex](x -3) (x +1) = 0[/tex]

Solve for x

[tex]x - 3 = 0\ or\ x + 1 = 0[/tex]

[tex]x = 3\ or\ x = -1[/tex]

x (time) cannot be negative.

So:

[tex]x = 3[/tex]

Answer:

210

Step-by-step explanation:

Multiply by the total amount by the decimal equivalent of 70% (0.7) to get your answer.

Answer:

The surface area increases at 12/7 square inches per minute

Step-by-step explanation:

Given

[tex]l = 7[/tex] --- side length

[tex]\frac{dV}{dt} = 3in^3/min[/tex] --- Rate at which volume increases

Required

The rate at [tex]which[/tex] the [tex]surface[/tex] area [tex]increases[/tex]

The volume of a cube is:

[tex]V = l^3[/tex]

Differentiate with respect to time

[tex]\frac{dV}{dt} = 3l^2 \cdot \frac{dl}{dt}[/tex]

When [tex]l = 7[/tex] and [tex]\frac{dV}{dt} = 3in^3/min[/tex]

The expression becomes:

[tex]3 = 3 * 7^2 \cdot \frac{dl}{dt}[/tex]

Divide both sides by 3

[tex]1 = 7^2 \cdot \frac{dl}{dt}[/tex]

[tex]1 = 49 \cdot \frac{dl}{dt}[/tex]

Divide both sides by 49

[tex]\frac{dl}{dt} = \frac{1}{49}[/tex]

The surface area is calculated as:

[tex]A= 6l^2[/tex]

Differentiate with respect to time

[tex]\frac{dA}{dt} = 12l\frac{dl}{dt}[/tex]

Substitute: [tex]\frac{dl}{dt} = \frac{1}{49}[/tex] and [tex]l = 7[/tex]

[tex]\frac{dA}{dt} = 12 * 7 *\frac{1}{49}[/tex]

[tex]\frac{dA}{dt} = 12 *\frac{1}{7}[/tex]

[tex]\frac{dA}{dt} = \frac{12}{7}[/tex]

The surface area increases at 12/7 square inches per minute

Answer:

(x+1)² + y² = 36

Step-by-step explanation:

Equation of a circle:

(x-h)² + (y-k)² = r²

Center: (h,k)

Radius: r

Given a center of (-1,0) and a radius of 6, we have for our equation:

(x-(-1))² + (y-0)² = 6²

(x+1)² + y² = 36

Answer: D) f(z) = 7 to the power of 2.

Answer:

5x + 12

Step-by-step explanation:

simplify f(x) and g(x)

g(x) = 4*2 -3*2 +5

g(x) = 8 -6 + 5

g(x) = 7

and

f(x) = 4*2 + 5x -3

f(x) = 8 + 5x - 3

f(x) = 5x + 5

So (f + g)(x) = f(x) + g(x)

(f + g)(x) = (5x + 5) + (7)

(f + g)(x) = 5x + 12

Answer:

700

Step-by-step explanation:

price x .80 (100%-20)=560

price=560/.8

price=700

The item's initial cost before taxes is $700.

A value or ratio that may be stated as a fraction of 100 is referred to as a percentage in mathematics. If we need to compute a percentage of a number, we should divide it by its whole and then multiply it by 100. The proportion, therefore, refers to a component per hundred. Per 100 is what the term percent signifies. The letter "%" stands for it.

Given, A sales item is 20% off. If the final price of the item was $560.00

Let "x" be the original price of the item

Since If the final price of the item was $560.00

Thus,

x(1 - 20%) = 560

x(1- 20/100) = 560

x(80/100) = 560

x = 700

therefore, The original price of the item without tax will be $700.

Learn more about percentages here:

https://brainly.com/question/29306119

#SPJ2

Answer:

LH: 5 x 7 = 35 m²

LW: 5 x 4 = 20 m²

WH: 4 x 7 = 28 m²

Add and Double: 35 + 20 + 28 = 83 m², 83 x 2 = 166 m²

Surface Area: 166 m²

Answer:

1. 62

2. 13

3. 6

4. 44

5. 3

6. 14

7. Step 1

8. Step 3

Step-by-step explanation:

Work for #1

32÷4×8-2

8×8-2

64-2

62

Work for #2

20÷2+3

10+3

13

Work for #3

[tex]\frac{1}{2}[/tex] ×24÷3+2

12÷3+2

4+2

6

Work for #4

2×(3+8)-4

2×24-4

48-4

44

Work for #5

(4+6÷3)×[tex]\frac{1}{2}[/tex]

(4+2)×[tex]\frac{1}{2}[/tex]

6×[tex]\frac{1}{2}[/tex]

3

Work for #6

21÷3+(8-1)

21÷3+7

7+7

14

Explanation for #7

Step 1

This is because in PEMDAS, you do multiplication before subtraction. In the first step, they did subtraction before multiplication.

Explanation for #8

Step 3

This is because in PEMDAS, you do multiplication before subtraction. In the first step, they did subtraction before multiplication.

Hope this helps!

Answer:

11 out of 22 marbles

Step-by-step explanation:

Just add up the red and green marbles to get the top # and then add up all the colored marbles to get the bottom #.

Hope this helps :) Please give brainliest!

Answer:

well... this normal addition

Step-by-step explanation:

9+8=17

9+1=10

5+4=9

5+2=7

3+4=7

3+1=4