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
labwork [276]
3 years ago
13

Please help me! Im not good at this topic.

Mathematics
1 answer:
romanna [79]3 years ago
3 0

Answer:

I THINK IT IS C.

Step-by-step explanation:

You might be interested in
What is 3N? <br>A.<br>B.<br>C.<br>D.
polet [3.4K]

It seems like it just wants you to multiply the numbers inside by 3 soooo :

N = (-2 , 0 / 3 , 5)  *  3

N = (-6 , 0 / 9 , 15)

Answer is C.

5 0
3 years ago
For triangle ABC, angle A=110, angle B=43, and side b=15. Find side c.
vredina [299]

Answer: 10

<u>Step-by-step explanation:</u>

First, find m∠C by using the Triangle Sum Theorem:

∠A + ∠B + ∠C = 180°

110 + 43 + ∠C = 180°

     153   + ∠C = 180°

                ∠C = 27°

Next, Use the Law of Sines to solve for c:

\dfrac{b}{sin\ B}= \dfrac{c}{sin\ C}

\dfrac{15}{sin\ 43}= \dfrac{c}{sin\ 27}

\dfrac{15\ sin\ 27}{sin\ 43}= c

10 = c


8 0
3 years ago
What is<br> is 1/4 + 9/10y -3/5y +7/8 written in simplest form?
Leviafan [203]

Answer:

Step-by-step explanation:

\frac{1}{4}+\frac{9}{10}y - \frac{3}{5}y+\frac{7}{8}\\\\=\frac{1}{4}+\frac{7}{8}+\frac{9}{10}y-\frac{3}{5}y\\\\

Combine like terms. 1/4 and 7/8 are like terms and LCD of 4 and 8 is 8

9/10y and -3/5y are like terms and LCD of 10 , 5 is 10

= \frac{1*2}{4*2}+\frac{7}{8}+\frac{9}{10}y-\frac{3*2}{5*2}y\\\\=\frac{2}{8}+\frac{7}{8}+\frac{9}{10}y-\frac{6}{10}y\\\\=\frac{9}{8}+\frac{3}{10}y

5 0
3 years ago
Read 2 more answers
If x equals 4 what is the value of y in the example below <br><br> y= 1/4 4.
ddd [48]

Answer:

sorry i cant help

Step-by-step explanation:

6 0
3 years ago
A random sample of 12 men age 60-65 has a mean blood pressure of 142. 3 mmHg and a standard deviation of 20.8 mmHg. Construct a
Over [174]

Answer:

The 99% confidence interval = (126.93,157.67)

Step-by-step explanation:

The formula for Confidence Interval =

Mean ± z × Standard deviation /√n

Mean = 142. 3 mmHg

Standard deviation = 20.8 mmHg.

n = 12

Z score for 99% confidence interval = 2.56

Confidence Interval =

142.3 ± 2.56 × 20.8/√12

142.3 ± 2.56 × 6.0044427996

142.3 ± 15.371373567

Confidence Interval

= 142.3 - 15.371373567

= 126.92862643

≈ 126.93

142.3 + 15.371373567

= 157.67137357

≈ 157.67

Therefore, the 99% confidence interval = (126.93,157.67)

3 0
3 years ago
Other questions:
  • What is 123/200 as a decimal
    8·1 answer
  • Drag a statement or reason to each box to complete this proof.
    5·2 answers
  • The manager of a grocery store wants to determine the average amount of money spent at his store as it compares to the average d
    14·1 answer
  • Find the zeros of polynomial function and solve polynomials equations.<br> f(x)=81x^4-16
    10·1 answer
  • Plz. solve this sum
    10·1 answer
  • The Smiths are on a summer road trip. They travel 10.9 hours the first day. 8.6 hours the second day and 12.4 hours the final da
    6·2 answers
  • Is 1/3 less than or more than 1/7
    8·2 answers
  • Let H be the set of all points of the form ​(s,sminus​1). Determine whether H is a vector space. If it is not a vector​ space, d
    12·1 answer
  • 6 / 5+i <br> Perform the indicated operations and express the result in standard form.
    7·1 answer
  • Please help me <br> Find the those two numbers!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!