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
Andrej [43]
3 years ago
6

Line s has a slope of 7/4. Line t is perpendicular to s. What is the slope of line t?

Mathematics
1 answer:
lora16 [44]3 years ago
5 0

Answer:

Step-by-step explanation:

The formula governing this situation is

m1 * m2 = - 1

Method One

So let m1 = 7/4

(7/4)*m2 = - 1                      Multiply by 4

7*m2 = -1*4                         Divide by 7

m2 = -4/7

Method Two

Most people teaching this try to get you to use reciprocals. If you know how to do that then the answer is much simpler.

7/4 m2 = -1                        Multiply by 4/7

4/7 * 7/4*m2 = - 1 * 4/7      

m2 = -4/7

However if you are not comfortable with reciprocals, then then the thing to do is to handle them the way I showed you in the first method.

You might be interested in
Solve using factoring n2 - 7n = 0
11Alexandr11 [23.1K]

Answer:

Step-by-step explanation:

n^2-7n is n(n-7). So n(n-7) = 0. We know n can be zero because 0* anything is 0. It could also be 7 because we are looking to multiply by 0. So to get a zero in the parentheses. you would do 0+7. Which is obviously, 7

4 0
3 years ago
Read 2 more answers
Three students, Brayden, Adrian, and Aubrey, line up one behind the other. How many different ways can they stand in line?
marusya05 [52]
9 different ways. Because there are three people and they can arrange themselves three ways three times three is nine.
4 0
3 years ago
Read 2 more answers
In the figure below,
Hunter-Best [27]
C. 38

Since they’re complementary, the addition of the two angles should give you 90.
Therefore, JKM + 52 = 90
So JKM = 90 - 52 = 38
5 0
3 years ago
Read 2 more answers
Lacey baked 20 cookies with 2 scoops of flour. With 5 scoops of flour, how many cookies can Lacey bake? Assume the relationship
Komok [63]

Answer:

The number of cookies baked is 50

Step-by-step explanation:

Given as:

Lacey baked 20 cookies with 2 scoops of flour

∵ For 2 scoops of flour , The number of cookies baked is 20

so,For 1 scoops of flour , The number of cookies baked is \frac{20}{2}

∴ For 5 scoops of flour , The number of cookies baked is  \frac{20}{2} × 5

I.e Number of baked cookies = 10 × 5 = 50

Hence The number of cookies baked is 50  Answer  

6 0
3 years ago
A research group wants to know if the online platform to play Settlers of Catan is being accessed more after the stay at home or
Gre4nikov [31]

Answer:

a) The P-value is 0.

At a significance level of 0.05, there is enough evidence to support the claim that the online platform was accessed significantly more so than before the stay at home order.

b) Effect size d = 0.77

Medium.

Step-by-step explanation:

This is a hypothesis test for the population mean.

The claim is that the online platform was accessed significantly more so than before the stay at home order.

Then, the null and alternative hypothesis are:

H_0: \mu=1000\\\\H_a:\mu> 1000

The significance level is 0.05.

The sample has a size n=108000.

The sample mean is M=1378.

As the standard deviation of the population is not known, we estimate it with the sample standard deviation, that has a value of s=489.

The estimated standard error of the mean is computed using the formula:

s_M=\dfrac{s}{\sqrt{n}}=\dfrac{489}{\sqrt{108000}}=1.488

Then, we can calculate the t-statistic as:

t=\dfrac{M-\mu}{s/\sqrt{n}}=\dfrac{1378-1000}{1.488}=\dfrac{378}{1.488}=254.036

The degrees of freedom for this sample size are:

df=n-1=108000-1=107999

This test is a right-tailed test, with 107999 degrees of freedom and t=254.036, so the P-value for this test is calculated as (using a t-table):

\text{P-value}=P(t>254.036)=0

As the P-value (0) is smaller than the significance level (0.05), the effect is significant.

The null hypothesis is rejected.

At a significance level of 0.05, there is enough evidence to support the claim that the online platform was accessed significantly more so than before the stay at home order.

The effect size can be estimated with the Cohen's d.

This can be calculated as:

d=\dfrac{M-\mu}{\sigma}=\dfrac{1378-1000}{489}=\dfrac{378}{489}=0.77

The values of Cohen's d between 0.2 and 0.8 are considered "Medium", so in this case, the effect size d=0.77 is medium.

5 0
3 years ago
Other questions:
  • I need help ASAP please!
    10·1 answer
  • A 10-ounce container of chocolate chips can be used to make 4 desserts. Each dessert has the same number of chocolate chips. Whi
    15·2 answers
  • Maya chatted online with all her friends for 2/3 of an hour on Saturday and 1/4 of an hour on sunday. During that time period, s
    5·2 answers
  • Michael exchanged 1000 US dollars for the Croatian currency, which is called the Kuna.The exchange rate was 5.81 Kuna to 1 dolla
    13·2 answers
  • A family travels, by plane, five hundred miles from their city to a beach town. Then they take a taxi from the airport to the ho
    12·1 answer
  • A piecewise function g(x) is represented by the graph. On a coordinate plane, a piecewise function has 3 lines. The first line h
    8·1 answer
  • Abraham's credit card has an APR of 13%, calculated on the previous monthly
    14·1 answer
  • The most Brendan can afford to pay per year in mortgage payments is $10,500, and his credit score is currently 544. According to
    12·1 answer
  • 5
    10·1 answer
  • A golfer hit a golf-ball from the top of a building 25 ft off the ground with an initial velocity of 45 feet per second. What is
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!