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2 years ago

There are 5 people at a party. They decide to share 3 ice cream sandwiches equally.

Mathematics

1 answer:

ale4655 [162]2 years ago

6 0

Answer:

your answer will be D. I think :)

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PLEASE HELP FAST! I will give brainlist!

Whitepunk [10]

Answer:

D or A

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

If f(x) = 3x² tlo, what is f(-7)?

tia_tia [17]

Answer:

Step-by-step explanation:

Be careful how you handle this.

f(-7) = 3(-7)^2

f(-7) = 3* 49 Notice the minus sign disappears. That's because there are 2 of them.

f(-7) = 147

4 0

2 years ago

3(x-2)+2(x+1)=-14<br> plz show work

Rom4ik [11]

Hello!

First, let's write the problem.
$3\left(x-2\right)+2\left(x+1\right)=-14$
Apply the distributive property on the left side of the equation.
$=3x-6+2x+2$
Add like terms.
$=5x-4$
Let's plug that in into the original equation.
$5x-4=-14$
Add 4 to both sides.
$5x-4+4=-14+4$
$5x=-10$
Divide both sides by 5.
$\frac{5x}{5}=\frac{-10}{5}$

Our final answer would be,
$x=-2$

You can feel free to let me know if you have any questions regarding this!
Thanks!

- TetraFish

5 0

2 years ago

Read 2 more answers

-6x+y=-2<br>x-3y=9 what is the solution set?

Anarel [89]

Mult. the 2nd eqn by 6 and then add this "new" equation to the 1st given eqn:

-6x + y = -2
6x -18y = 54
--------------------
-17y = 52, or y = -52/17. Subst. this value of y into either equation to find the value of x.

3 0

3 years ago

Can help me find area and perimeter step by step

Vera_Pavlovna [14]

Answer:

area: 16.28 ft²
perimeter: 17.05 ft

Step-by-step explanation:

The figure is shown as being composed of a semicircle and a triangle. You know the formula for the area of a circle is ...

A = πr²

The radius of the semicircle is half its diameter, so is (4 ft)/2 = 2 ft. Then the area of a circle with radius 2 feet is ...

A = π(2 ft)² = 4π ft²

Our semicircle has half that area, so ...

area of semicircle = (4π ft²)/2 = 2π ft² ≈ 6.283 ft²

The area of the triangle is given by the formula ...

A = (1/2)bh

Here, the base is shown as 4 ft, and the height is shown as 5 ft. Then the triangle area is ...

triangle area = (1/2)(4 ft)(5 ft) = 10 ft²

So, the total area of the composite figure is ...

figure area = area of semicircle + triangle area

= 6.283 ft² + 10 ft² ≈ 16.283 ft² . . . . area of the figure

The perimeter of the curved portion of the semicircle is half the circumference of a circle of radius 2 ft. It will be ...

curved perimeter = (1/2)(2πr) = πr = π(2 ft) = 2π ft ≈ 6.283 ft

The length of each side of the triangle can be found from the Pythagorean theorem. Each side of the triangle is the hypotenuse of a right triangle with legs 2 ft and 5 ft. Then it will be ...

triangle side length = √(2² +5²) ft = √29 ft ≈ 5.385 ft

The total perimeter is ...

perimeter = 2 × triangle side length + semicircle length

= 2×(5.385 ft) + 6.283 ft = 17.054 ft

The perimeter of the figure is about 17.05 feet.

4 0

3 years ago