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
valentinak56 [21]
2 years ago
15

Middle school algebra 1

Mathematics
1 answer:
zhuklara [117]2 years ago
6 0

HOW IS THIS MIDDLE SCHOOL ALGEBRA 1!??? I'm a senior in highschool and i have NEVER seen smthg THIS difficult for a middle schooler...

You might be interested in
The scale on a map reads ½ inch
Inga [223]

Answer

172.5mi

Step-by-step explanation:

5 inches (30) = 150,  = 1/2 inch=30, half of the half = 30

5x30+30+15

6 0
3 years ago
Factor this: a^n+a^n+1
NARA [144]

Answer:

1 + 2 a^n

Step-by-step explanation:

4 0
3 years ago
What is 1 1/3 x 1 3/4
Maksim231197 [3]

Answer:

Step-by-step explanation:

I like to convert them to improper fractions first, so that will make 1 1/3 turn into 4/3, and 1 3/4 into 7/4, then multiply and you get 28/12 or 7/3 simplified

6 0
3 years ago
Read 2 more answers
The weights of soy patties sold by Veggie Burgers Delight are normally distributed. A random sample of 15 patties yields a mean
Elden [556K]

Answer:

t=\frac{3.8-4}{\frac{0.5}{\sqrt{15}}}=-1.549    

Step-by-step explanation:

Data given and notation  

\bar X=3.8 represent the sample mean

s=0.5 represent the sample standard deviation for the sample  

n=15 sample size  

\mu_o =4 represent the value that we want to test

\alpha represent the significance level for the hypothesis test.  

t would represent the statistic (variable of interest)  

p_v represent the p value for the test (variable of interest)  

State the null and alternative hypotheses.  

We need to conduct a hypothesis in order to check if the mean weight is less than 4 ounces, the system of hypothesis would be:  

Null hypothesis:\mu \geq 68  

Alternative hypothesis:\mu < 4  

If we analyze the size for the sample is < 30 and we don't know the population deviation so is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:  

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}  (1)  

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

Calculate the statistic

We can replace in formula (1) the info given like this:  

t=\frac{3.8-4}{\frac{0.5}{\sqrt{15}}}=-1.549    

3 0
3 years ago
I need help! I don't know how to get the answer or what it is. Can anyone help me it's for a test and I'm on my last attempt?
Greeley [361]

Answer:

See explanation

Step-by-step explanation:

(4)

Using the sine ratio in  the right triangle

sinΘ = \frac{opposite}{hypotenuse} = \frac{7}{9}, thus

Θ = sin^{-1}(\frac{7}{9}) ≈ 51.1°

(5)

Using the tangent ratio in the right triangle

tanΘ = \frac{opposite}{adjacent} = \frac{4}{5}, thus

Θ = tan^{-1}(\frac{4}{5}) ≈ 38.7°

7 0
3 years ago
Other questions:
  • Point p’ is the image of P (-6,5) under a translation by 7 units down
    6·2 answers
  • What’s this answer ? Please help!
    8·1 answer
  • Twelve less than the product of a number and 6 is 60.
    6·2 answers
  • 80 as a product of prime factors
    15·2 answers
  • Help me please with This
    5·2 answers
  • Solve 5x + 17 = 4(3x - 1) x = -3 x = -3 Infinitely many solutions Infinitely many solutions No solutions No solutions x = 3
    8·2 answers
  • What is the answer? I need it now ​
    10·1 answer
  • lance placed $5,200 in an investment account with a 6.5% interest rate. After how many years will he double his initial investme
    15·1 answer
  • Determine whether the quadratic function shown below has a minimum or
    8·1 answer
  • Figure STUV is translated 7 units down and 5 units left. What are the coordinates for T'?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!