1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vfiekz [6]
2 years ago
8

(8x4+2x2−1)+(3x3−5x2+7x+1)=

Mathematics
1 answer:
pochemuha2 years ago
6 0

Answer: 41 (i'm not really sure. but i was trying to help so please don't be mad

Step-by-step explanation:

8 * 4 = 32                           3 * 3 = 9 and 5 * 2 = 10

2 * 2 = 4                                         9 - 10 = -1                

32 + 4 = 36                                   -1 + 7 = 6 + 1 = 7

36 - 2 = 34

                                       34 + 7 = 41

You might be interested in
What is the direct variation between x and y when x=10 and y=250
ioda

You can use equations to describe the relationship between the two numbers.

x+240=y

y-240=x


7 0
3 years ago
Why is the quotient of three divided by one-fifth different from the quotient of one-fifth divided by three? Tell a story that c
miskamm [114]

Answer:

These quotients are different because of what division means.

Step-by-step explanation:

When you divide you start with a total and break it into equal groups. If you started with three and broke them into groups of 1/5, that is different then starting with 1/5 and breaking into three groups.

If you had 3 cups of Chex mix and made servings of 1/5 of a cup. How many servings could you get? This is 3 divided by 1/5.

If you want to put tomatoes in 1/5 of your garden and you have 3 different tomatoes you want to plant. What fraction of the original garden will each type of tomato be in if they are evenly distributed.

7 0
2 years ago
A “stick” object of height 10 cm is standing in front of a point X–ray source at a distance of 50 cm from the source. The detect
blagie [28]

Answer:

40 cm.

Step-by-step explanation:

Given,

height of the object = 10 cm

Distance of the object from the X-ray= 50 cm

Distance of detector from the source = 2 m = 200 cm

Height of the image, h = ?

Now,

\tan \theta = \frac{P}{B}

\tan \theta = \frac{10}{50}

\tan \theta = \frac{1}{5}

Again applying

\tan \theta = \frac{P}{B}

\frac{1}{5} = \frac{h}{200}

h = 40 cm

Hence, height of the image is equal to 40 cm.

6 0
2 years ago
Write the equation of a parabola having the vertex (1, −2) and containing the point (3, 6) in vertex form. Then, rewrite the equ
In-s [12.5K]
PART A

The equation of the parabola in vertex form is given by the formula,

y - k = a {(x - h)}^{2}

where

(h,k)=(1,-2)

is the vertex of the parabola.

We substitute these values to obtain,


y  + 2 = a {(x - 1)}^{2}

The point, (3,6) lies on the parabola.

It must therefore satisfy its equation.


6  + 2 = a {(3 - 1)}^{2}


8= a {(2)}^{2}


8=4a


a = 2
Hence the equation of the parabola in vertex form is


y  + 2 = 2 {(x - 1)}^{2}


PART B

To obtain the equation of the parabola in standard form, we expand the vertex form of the equation.

y  + 2 = 2{(x - 1)}^{2}

This implies that

y + 2 = 2(x - 1)(x - 1)


We expand to obtain,


y + 2 = 2( {x}^{2}  - 2x + 1)


This will give us,


y + 2 = 2 {x}^{2}  - 4x + 2


y =  {x}^{2}  - 4x

This equation is now in the form,

y = a {x}^{2}  + bx + c
where

a=1,b=-4,c=0

This is the standard form
7 0
3 years ago
The width of a rectangle is the length minus 4 units. The area of the rectangle is 12 units. What is the width, in units, of the
marusya05 [52]

Answer:

Step-by-step explanation:12-4=8

4 0
2 years ago
Other questions:
  • Miss wilson has 32 students in her classroom, and all of them completed their reading assignments in january. each read 20 pages
    8·1 answer
  • Help with range. Pleeeeease?
    10·2 answers
  • Katelyn bought 3 packages of ground beef.The packages weighed 2.65 lbs,1.85 lbs,and 2.46 lbs.She divided the ground beef into 4
    14·1 answer
  • What is the length of BC in the right triangle below?
    5·1 answer
  • Rewrite the range of each company’s wireless access devices in feet using scientific notation. (5,280 feet =1 mile)
    10·2 answers
  • What is the value of x?
    14·1 answer
  • Given: ABCD is a parallelogram
    11·2 answers
  • When building a car, you can choose from 3 colors, 3 interiors, 3 sound systems, 3 kinds of tires, and 3 seat coverings. How man
    14·1 answer
  • Which describes the transformation of. ◇PQR to z◇P'Q'R​
    5·2 answers
  • Erik is bisecting a segment with technology. Which of the following describes his next step?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!