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
zzz [600]
2 years ago
6

Select all equations that match the tape diagram.

Mathematics
1 answer:
patriot [66]2 years ago
5 0

Answer:

6x+8=35

35=8+6x

Step-by-step explanation:

id.k about 35=8+x+X+X+x+X+x

You might be interested in
(08.05)
Readme [11.4K]
The mistake is in step 3:

I: −2m =−12 − 2n
II: 2m = 8 + 8n

the student set both right sides of the equations equal (−12 − 2n = 8 + 8n), but the left sides aren't equal: first equation has -2m, second has +2m so the signs of one of the equations must be inverted first
5 0
3 years ago
Find the 95% confidence interval for estimating the population mean μ
AVprozaik [17]

We first need to determine whether we are dealing with means or proportions in this problem. Since we are given the sample and population mean, we know that we are dealing with means.

Since we have one sample mean, this means we are creating a confidence interval for one sample (1 Samp T Int).

Normally we would check for conditions, but since this is not formulated as a "real-world scenario" type problem, it is hard to check for randomness and independence. Therefore, I will be excluding conditions from this answer.

<h3>Confidence Interval Formula</h3>

The formula for constructing a <u>confidence interval for means</u> is as follows:

  • \displaystyle \overline{x} \pm t^*\big{(}\frac{\sigma}{\sqrt{n} } \big{)}

We are given these variables:

  • \overline{x}=50
  • n=60
  • \sigma=10

Plug these values into the formula for the confidence interval:

  • \displaystyle 50\pm t^* \big{(}\frac{10}{\sqrt{60} } \big{)}

<h3>Finding the Critical Value (t*)</h3>

In order to find t*, we can use this formula:

  • \displaystyle \frac{1-C}{2}=A

Calculating the z-score associated with "A" will give us t*.

So, let's plug in the confidence interval 95% (.95) into the formula:

  • \displaystyle \frac{1-.95}{2}=.025

Use your calculator or a t-table to find the z-score associated with this area under the curve.. you should get:

  • t^*=1.96

<h3>Constructing Confidence Interval</h3>

Now, let's finish the confidence interval we created:

  • \displaystyle 50\pm 1.96 \big{(}\frac{10}{\sqrt{60} } \big{)}

We can calculate the confidence interval, using this formula, to be:

  • \boxed{(47.4697, \ 52.5303)}

<h3>Interpreting the Confidence Interval</h3>

We are 95% confident that the true population mean μ lies between <u>47.4697 and 52.5303</u>.

8 0
1 year ago
A company that makes boxes finds that 6 out of 8 boxes are damaged.What percent of the boxes are damage?
Elanso [62]
8 boxes is 100%, 6 out of 8 is 6/8 x 100% = 75%
7 0
3 years ago
I need help fast like rn
lbvjy [14]

Answer:

vyuWYIRTG3ñwyiehg

Step-by-step explanation:

4 0
2 years ago
X2 + 4x -9 = (x + a)? +b<br> Find the value of a and the value of b.<br> a =<br> b=<br> ?
Burka [1]

Step-by-step explanation:

x² + 4x - 9

= (x + 2)² - 13

a = 2, b = -13.

4 0
3 years ago
Other questions:
  • 1) Factorise the following polynomials: (i) 9 2 − 66 + 121 2
    7·2 answers
  • Divide these polynomials.
    10·1 answer
  • Which statement is true about this argument?
    6·2 answers
  • Which is equivalent to (4xy – 3z)2, and what type of special product is it?
    13·2 answers
  • Ben drinks tea at an incredible rate. He drinks 3-liters of tea every
    8·1 answer
  • Find the measure of angle 1
    12·2 answers
  • What is the value of “y” in y = -3x if the value of ‘x’ is 2?
    5·1 answer
  • Round 97.081 to the nearest 10th
    7·2 answers
  • I need help please help me please
    5·1 answer
  • Someone please help me
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!