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3 years ago

−15(x−4)=−2 the 15 is one fifth pls help

Mathematics

1 answer:

PIT_PIT [208]3 years ago

8 0

X=-6
1(x-4) over 5 =-2
Multiply all terms by the denominator to get simplified x-4=-10
Add 4 to each side to get x=-6

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N a basketball game, Archie made 3/5 of his shots. Which numbered choice has a value that is the same as the ratio Archie made i

Mamont248 [21]

Basically you want to find an equivalent fraction for 3/5 in the answer choices.

12/20 equals 3/5 because 3/5 x 4/4 (or 1) = 12/20

answer: 4

8 0

3 years ago

Can someone please help!

Fudgin [204]

Answer:

min f(x) = 3.95 (for x= 2.5)

Step-by-step explanation:

vertex (x) = 1/0,4 = 2,5

vertex (y) = 0.2(2.5)^2-2.5+5.2 = 3.95

3 0

2 years ago

Please help me with this

Sati [7]

Answer:

$x = \sqrt{11.4^2+2.6^2}\\\\$

Rounded to the nearest hundredths: 11.69.

Step-by-step explanation:

I would use the Pythagorean theorem for this problem.

The difference between the highest point and the lowest point of AD is 9.8-7.2 = 2.6, so that would be the height of the triangle. The length/base of the triangle would be 11.4.

Now, just solve using Pythagorean's theorem:

$x = \sqrt{11.4^2+2.6^2}\\\\$

Rounded to the nearest hundredths: 11.69.

I hope this helped you.

5 0

2 years ago

A square has a perimeter of 12x + 52 units. Which expression represents the side length of the square in units?

DochEvi [55]

1. Find the surface area of the rectangular prism. (1 point)
Measures are 2, 3, and 4 inches. Let W=2, L=3, H=4 
a rectangular has six sides, the total surface area is equal to 6 plains: 
2*W*L + 2*L*H + 2*L*W 
= 2*(W*L + L*H + L*W) 
= 2 * (2*3 + 3*4 + 4*2) 
= 2 * ( 6 + 12 + 8 ) 
= 2 * 26 
= 52 ................... the last choice 

2. A cube has a side length of x feet. Which expression represents the surface area of the cube? (1 point) 

Area of one face = x^2, Total Area of 6 faces = 6*x^2 = 2x^2 units 

3. Find the surface area of the cylinder. Use 3.14 for pi . (1 point) 
Length: 15 cm, Diameter: 2 cm 
A cylinder has 3 surfaces: two circles + one curved surface area 
...... two circles of 2cm diameter (1cm radius) 
A = pi*r^2 = 3.14*1*1 = 3.14 sq. cm ...... two circles' area = 6.28 sq.cm 
Curved surface area = circumference * length 
.... circumference = pi*d = 3.14 * 2 = 6.28 cm ......... length = 15 
curved surface area = 6.28*15 = 94.2 sq. cm 

Add both for total surface area = 6.28 + 94.2 = 100.48 sq.cm 

4. The bottom of a shopping bag measures 8 inches by 10 inches. The bag has a height of 12 inches. How much paper is needed to make the bag? (1 point) 
two pieces of paper ... one for bottom = 8*10 = 80 sq.in 
the other ... height * perimeter of the bottom = 12*(2*(10+8)) = 12 * 2 * 18 = 432 sq.in 
Add both: 80 + 432 = 512 sq.in <<<<<<<<<<<

4 0

3 years ago

Read 2 more answers

Lou has a solid clay brick in the shape of a rectangular prism with a length of 8 inches, a width of 3.5 inches, and a height of

Rzqust [24]

The weight of solid clay brick is 66.465 ounces, if solid brick with a length of 8 inches, a width of 3.5 inches, and a height of 2.25 inches and the clay weighs 1.055 ounces per cubic inch.

Step-by-step explanation:

The given is,

A solid clay brick in the shape of a rectangular prism.

A length of 8 inches, a width of 3.5 inches, and a height of 2.25 inches.

The clay weighs 1.055 ounces per cubic

Step:1

Formula for volume of rectangular prism,

$Volume, V= whl$ ...................(1)

Where, w - Width of the rectangular prism

h - Height of rectangular prism

l - Length of rectangular prism

From the given,

w = 3.5 inches

h = 2.25 inches

l = 8 inches

Equation (1) becomes,

$= (3.5)(2.25)(8)$

$= (7.875)(8)$

$= 63$

Volume, V = 63 cubic inches

Step:2

Weight of brick = Volume of brick × Weight per cubic inch

$= (63) (1.055)$

= 66.465 ounces

Weight of brick = 66.465 ounces

Result:

The weight of solid clay brick is 66.465 ounces, if solid brick with a length of 8 inches, a width of 3.5 inches, and a height of 2.25 inches and the clay weighs 1.055 ounces per cubic inch.

7 0

2 years ago