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
Makovka662 [10]
3 years ago
15

Many points!! Answer asap

Mathematics
1 answer:
Semmy [17]3 years ago
8 0
Remember
(ab)/c=a(b/c)
and
b/b=1 when b=b


1.
8+9t+4=
8+4+9t=
12+9t=
9t+12

2. (56ab)/b=56a(b/b)=56a(1)=56a

3. divising negatives yeilds positive
-46/-2=46/2=23
You might be interested in
To start the school year, a teacher spends $54.35 in school supplies for her classroom. During the course of the year, she will
Sholpan [36]

co·ef·fi·cient

ˌkōəˈfiSHənt/Submit

noun

1.

MATHEMATICS

a numerical or constant quantity placed before and multiplying the variable in an algebraic expression (e.g., 4 in 4x y).

So, 22 is your coefficient.

5 0
3 years ago
Inez and Roy made three numbers with their number cards .Then their table got bumped and mixed up the three numbers again.One nu
Misha Larkins [42]

The greatest six-digit number they could make is 998,877 I know this because I used the largest digits and put them in order from largest to smallest.

Hope this helps


6 0
3 years ago
A study of 420,076 cell phone users found that 131 of them developed cancer of the brain or nervous system. Prior to this study
Keith_Richards [23]

Answer:

a) 95% Confidence interval = (0.026%, 0.037%) to 3 d.p

b) The result of the 95% confidence interval does not agree with the previous rate of such cancer because the value 0.0224% does not lie within this confidence interval obtained.

Step-by-step explanation:

Confidence Interval for the population proportion is basically an interval of range of values where the true population proportion can be found with a certain level of confidence.

Mathematically,

Confidence Interval = (Sample proportion) ± (Margin of error)

Sample proportion = (131/420076) = 0.0003118483 = 0.0312%

Margin of Error is the width of the confidence interval about the mean.

It is given mathematically as,

Margin of Error = (Critical value) × (standard Error)

Critical value at 95% confidence interval for sample size of 420,076 is obtained from the z-tables because the sample size is large enough for the properties of the sample to approximate the population properties.

Critical value = 1.960 (from the z-tables)

Standard error = σₓ = √[p(1-p)/n]

n = sample size = 420,076

σₓ = √(0.0003118×0.999688/420076) = 0.0000272421 = 0.0000272

95% Confidence Interval = (Sample proportion) ± [(Critical value) × (standard Error)]

CI = 0.000312 ± (1.96 × 0.0000272)

CI = 0.000312 ± 0.0000534

95% CI = (0.0002586055, 0.0003653945)

95% Confidence interval = (0.000259, 0.000365)

95% Confidence interval = (0.0259%, 0.0365%) = (0.026%, 0.037%) to 3 d.p

b) The result of the 95% confidence interval does not agree with the previous rate of such cancer because the value 0.0224% does not lie within this confidence interval obtained.

Hope this Helps!!!

7 0
3 years ago
60 is 5/6 of what number?
Stels [109]
If x = the number you are trying to find:
60 =  \frac{5}{6}  * x
\frac{60}{ \frac{5}{6} }  = x
and when dividing by a fraction you can flip it and multiply instead:
60 * 6/5 = 72
The number is 72
4 0
2 years ago
7-x/3=-1-x/8 I'm in 8th grade and I can't figure this out​
antiseptic1488 [7]

Answer: x = 38.4

Step-by-step explanation:

7-x/3 = -1-x/8

1. Add 1 to both sides

8-x/3 = -x/8

2. Add x/3 to both sides

8 = x/3 - x/8

3. Multiply x/3 by 8/8 and x/8 by 3/3 to get the same number under the quotient

8 = 8x/24 - 3x/24

4. calculate the difference between 8x/24 - 3x/24

8 = 5x/24

5. Multiply both sides by 24/5, and there is the answer

38.4 = x

7 0
2 years ago
Other questions:
  • Write a value-returning recursive function that computes the sum of the digits in a given positive int argument. for example, if
    6·1 answer
  • Simplify: 3m/m-6*5m^3-30m^2/5m^2<br>A.7<br>B.m+7<br>C.m+8<br>D.3m
    6·2 answers
  • Archaeologists can determine the diets of ancient civilizations by measuring the ratio of carbon-13 to carbon-12 in bones found
    8·1 answer
  • Look at the table showing different prices for cans of soup. Prices for Soup Price A Price B Price C $3.87 for 3 $2.38 for 2 $8.
    12·2 answers
  • What is the value of k if 2x^3-3x^2+kx-4 is divided by x-3 and gives a remainder of -7?
    7·1 answer
  • Huey and Dunham (1987) measured the running speed of fence lizards, Sceloporus merriam,in Big Bend National Park in Texas. Indiv
    9·1 answer
  • I NEEEED HELP!!! please show work in answer and no blank or nonsense answers please :)
    7·1 answer
  • What is the product of (7/8) (-16) (-7) (-1/14) ?
    13·1 answer
  • A professional quarterback passed for 4,383 yards in 16 games in one football season. He wants to know his passing yardage per g
    12·1 answer
  • Let U= {1,2,3,4,5,6,7,8,9,10}, A={2,4,6,8} B={1,2,3,4}, C={5,6,9}
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!