All categories

2 years ago

Please answer asap !!!!!!!!!!!]

Mathematics

1 answer:

elixir [45]2 years ago

4 0

Answer:

the y inetercept is -2

Step-by-step explanation:

its easy

You might be interested in

The base of the triangle decreases by 30% and the height increases by 20%.

sergeinik [125]

Answer:

Area decreases by 16%

Step-by-step explanation:

Use formula for the area of the triangle

$A=\dfrac{1}{2}\cdot \text{Base}\cdot \text{Height}$

<u>Initial triangle:</u>

The base is 18 cm

The height is 5 cm

The area is

$A_{initial}=\dfrac{1}{2}\cdot 18\cdot 5=45\ cm^2$

<u>New triangle:</u>

The base is $(1-0.3)\cdot 18=0.7\cdot 18=12.6\ cm$

The height is $(1+0.2)\cdot 5=1.2\cdot 5=6\ cm$

The area is

$A_{new}=\dfrac{1}{2}\cdot 12.6\cdot 6=37.8\ cm^2$

Area decreases by

$100\%-\dfrac{37.8}{45}\cdot 100\%=100\%-84\%=16\%$

5 0

3 years ago

A quadratic function has its vertex at the point (- 3, 8) . The function passes through the point (0, 0) . When written in verte

SIZIF [17.4K]

Answer:

f(x) = -8/3(x+3)+8

a = -8/3

b = technically equals -3 but when we plug it in it gets turned into 3 *double negative

k = 8

Step-by-step explanation:

Vertex: (h,k)

Use the points (0,0) and (-3,8) to find the slope

y2-y1/x2- x1

6 0

3 years ago

Jessica is selling girl scout cookies and recorded how many she sold in one afternoon. She sold Thin Mints, Trefoils, and Samoas

Butoxors [25]

Answer:

total # of boxes sold = 90

Step-by-step explanation:

54 is 60% of total #

54 = .6x

x = 54/0.6 = 90

7 0

2 years ago

How do you find the surface area of a regular triangular prism

Dmitry [639]

So a triangular prisim is like a triangle stacked on top of x number of identical triangles making a height, like a piece of paper made into a stack

so
basically find the area of each side and add

look at diagram/attachment
find area of triangle
1/2 b times h= area of 1 triangular face

multiply by 2 because 2 sides so 1/2 times 2 b times h=b times h

then 3 other sides
find area of each side and add
areas=(H times B)+(H times c)+(H times a)

so SA=(b times H)+(H times B)+(H times c)+(H times a)

8 0

3 years ago

Richard is planning a trip to Italy. He Thinks he will need $2,750 for the trip. If the trip is 40 weeks away, which is the best

Leto [7]

Hey there
That's easy
Divide 2750 by 40 and a good estimate would be 68 dollars
Hope this helps

7 0

3 years ago

Read 2 more answers