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
swat32
3 years ago
12

Rewrite each number sentence using numerals and symbols. Find the difference between 4 and 3 and then add 7 *

Mathematics
1 answer:
Zina [86]3 years ago
8 0

Answer:

8

Step-by-step explanation:

4-3+7=8

You might be interested in
Gary is studying the prevalence of regional dialects. He surveyed 351 people in a region and asked what words they used for cert
chubhunter [2.5K]

Answer:

Confidence interval = ( 0.7991, 0.8647 )

Step-by-step explanation:

Sample size = n = 351

number of successes = X = 292

Sample proportion = P = \frac{X}{n}

                                     =  \frac{292}{351}

                                     = 0.831908831

confidence interval = 90%

Critical Z value  = 1.6449   [by using excel]

Confidence interval = P ± Z \sqrt{P\frac{(1-P)}{n}}

Where P = Sample proportion

           Z = critical value

           n = sample size

Confidence interval =  0.831908831 ± 1.6449 \sqrt{0.831908831\frac{(1-0.831908831)}{351}}

                                = 0.831908831 ± 1.6449 × 0.0200

                                = 0.831908831 ± 0.032898

 Lower limit             = 0.831908831 - 0.032898 = 0.7991

Upper limit               = 0.831908831 + 0.032898 = 0.8647

Confidence interval = ( 0.7991, 0.8647 )

4 0
3 years ago
A) x = 30 b) x = 40 C) x = 45 70​
tiny-mole [99]

Step-by-step explanation:

I would help i really would but I need more info discussing the topic im sorry but I can't answer it

5 0
3 years ago
Three vertices of a parallelogram are shown in the figure below. Give the coordinates of the fourth vertex.
topjm [15]

Given:

The three vertices of a parallelogram are (-3,8), (4,5), (2,-5).

To find:

The fourth vertex of the parallelogram.

Solution:

Let the vertices of the parallelogram are A(-3,8), B(4,5), C(2,-5) and D(a,b).

We know that, diagonals of a parallelogram bisect each other. It means midpoints of both diagonals are same.

Midpoint formula:

Midpoint=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)

Two diagonals of ABCD are AC and BD.

Midpoint of AC = Midpoint of BD

\left(\dfrac{-3+2}{2},\dfrac{8-5}{2}\right)=\left(\dfrac{4+a}{2},\dfrac{5+b}{2}\right)

\left(\dfrac{-1}{2},\dfrac{3}{2}\right)=\left(\dfrac{4+a}{2},\dfrac{5+b}{2}\right)

On comparing both sides, we get

\dfrac{4+a}{2}=\dfrac{-1}{2}

4+a=-1

a=-1-4

a=-5

And,

\dfrac{5+b}{2}=\dfrac{3}{2}

5+b=3

b=3-5

b=-2

Therefore, the coordinates of fourth vertex are (-5,-2).

3 0
2 years ago
The area of a room in a dollhouse is 1,248 square inches. The width of the room is 8 inches. How long is the room?
AveGali [126]
The length of the dollhouse is 156 square inches
6 0
3 years ago
Pleasseee hellp for brainleist answer and extra points if you correct the 2 first top rows
andrew-mc [135]
So close! But instead of adding the multiplication sign after the number you need to add them before. Good job though! :)
7 0
3 years ago
Read 2 more answers
Other questions:
  • Solve for Tangent and Cosine
    8·1 answer
  • Mr Hays Bought a 5 gal. bucket of paint costing $175
    9·1 answer
  • Ignore the bottom question, what are the dolls and pencils and trucks worth
    13·1 answer
  • A cone has a radius of 1.2 inches and a height of 2.9 inches. What is the volume to the nearest tenth of a cubic inch of the con
    6·1 answer
  • A line a slope of 4 and<br> includes the points (-5,7) and<br> (w-9). What is the value of<br> w?
    8·1 answer
  • The area of a square garden is 49 yd2. How long is each side of the​ garden? in yd.
    7·1 answer
  • What is the equation of the line that passes through the points (-8,8) and (4,-1)​
    7·2 answers
  • Find an equation for the perpendicular bisector of the line segment whose endpoints
    9·1 answer
  • Please help me... Its due in 10 mintues
    14·2 answers
  • Brandon enters bike races. He bikes 91 half miles every1 half hour. Complete the table to find how far Brandon bikes for each ti
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!