All categories

3 years ago

2: find the slop and the y-intercept of the line represented by the equation.

1 answer:

7 0

$The\ slope-intercept\ form:y=mx+b\\\\m\ is\ the slope\\b\ is\ y-intercept\\\\7x+y=8\\\\y=-7x+8\\\\the\ slope:m=-7\\y-intercept:b=8$

You might be interested in

Simplify (2x+1)(x+8) - (x-3)(2x+1)

Olin [163]

Answer:

22x+11 is your answer

Step-by-step explanation:

(2x+1)(x+8) - (x-3)(2x+1)

(2x+1)(x+8-x+3)

(2x+1)(11)

=22x+11

8 0

2 years ago

G(x)=-3x+2 and g(x)=-1, find x

Zinaida [17]

Answer:

x=1

Step-by-step explanation:

7 0

2 years ago

Use the figure below to answer the questions.

Archy [21]

Answer:

a. What is the name of the 3D shape?

The name of the 3D shape is Prism

b. What is the formula for total surface area for this shape?

Total surface area:

$S=2A_{b}+P_{b}h$

c. What is the surface area of the figure?

The surface area of the figure is 144 cm²

Step-by-step explanation:

a. What is the name of the 3D shape?

The 3D shape has two congruent and parallel faces (triangles) and the other faces are parallelograms, then the 3D shape is a prism

b. What is the formula for total surface area for this shape?

Total Surface area:

$S=2A_{b}+P_{b}h$

where:

Area of the base of the prism: Ab

Perimeter of the base: Pb

Height of the prism: h

c. What is the surface area of the figure?

The base of the prism is a triangle. Then to calculate the area of the base, we must use the formula to calculate the area of a triangle:

$A_{b}=\frac{bh}{2}\\ A_{b}=\frac{(4 cm)(3 cm)}{2}\\ A_{b}=\frac{12cm^{2} }{2}\\ A_{b}=6cm^{2}$

The perimeter of the base is the perimeter of the triangle, equal to the sum of the sides of the triangle:

$P_{b}=4cm+3cm+5cm\\ P_{b}=12cm$

h: Height of the prism is the distance between the bases of the prism (the triangle), then h=11 cm

Then, replacing in the formula the known values:

$S=2(6 cm^{2})+(12 cm)(11 cm)\\ S=12 cm^{2}+132 cm^{2}\\ S=144 cm^{2}$

8 0

3 years ago

Each hour, the number of bacteria in Dr. Nall’s petri dish tripled. What percent is the population compared to the population th

dimulka [17.4K]

THE ANSWER IS THE D!!!!!!!!!!!!

3 0

3 years ago

Read 2 more answers

Can some one help me answer all ten questions they are due at 10:00 I will give out brainly. Part 3 Bonus question

mixer [17]

Answer:

226

Step-by-step explanation:

Area of rectangle:

x+6=17

x=11

11+6=17

11+3=14

17×14=238

Area of triangle:

$\frac{1}{2} \times b \times h$

Use phytagoras theorem to find the base of the triangle:

c²=a²+b²

5²=4²+b²

25=16+b²

b²=25-16

b²=9

b=√9

b=3 (only the half)

b=6 (the whole base)

$\frac{1}{2} \times 6 \times 4$

3×4

Shades region:

238-12

=226

5 0

3 years ago