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
Evgesh-ka [11]
2 years ago
8

PLZ ASAP ON 3 A B AND C PLSHSJSJSJSJ

Mathematics
1 answer:
Brrunno [24]2 years ago
3 0
B is the answer trust me
You might be interested in
In ΔRST, t = 4.1 inches, r = 7.1 inches and ∠S=45°. Find the length of s, to the nearest 10th of an inch.
dem82 [27]

Answer:

The length of s is 5.1 inches to the nearest tenth of an inch

Step-by-step explanation:

In Δ RST

∵ t is the opposite side to ∠T

∵ r is the opposite side to ∠R

∵ s is the opposite side to ∠S

→ To find s let us use the cosine rule

∴ s² = t² + r² - 2 × t × r × cos∠S

∵ t = 4.1 inches, r = 7.1 inches, and m∠S = 45°

→ Substitute them in the rule above

∴ s² = (4.1)² + (7.1)² - 2 × 4.1 × 7.1 × cos(45°)

∴ s² = 16.81 + 50.41 - 41.1677568

∴ s² = 26.0522432

→ Take √ for both sides

∴ s = 5.10413981

→ Round it to the nearest tenth

∴ s = 5.1 inches

∴ The length of s is 5.1 inches to the nearest tenth of an inch

3 0
2 years ago
Read 2 more answers
K- 3/10 = 2/5 <br> What does k equal
Vesna [10]

Answer:

k = 7/10

or as a decimal is 0.7

3 0
3 years ago
What is lim x→-3 sqrt x^2-8
vitfil [10]

If the  -8 is under the square root, then...

\displaystyle L = \lim_{x\to -3} \sqrt{x^2-8}\\\\L = \sqrt{(-3)^2-8}\\\\L = \sqrt{9-8}\\\\L = \sqrt{1}\\\\L = 1\\\\

OR

If the -8 is not under the square root, then...

\displaystyle L = \lim_{x\to -3} \sqrt{x^2}-8\\\\L = \sqrt{(-3)^2}-8\\\\L = \sqrt{9}-8\\\\L = 3-8\\\\L = -5

Either way, we replace x with -3 and simplify.

For more information, refer to the direct substitution rule for limits.

4 0
1 year ago
If it doesn't give me the perimeter, how do i find x from this? thank you!​
Mariulka [41]

The way the angles are labeled tell you that they are all congruent. The two triangles you see here also share the side that joins them. Then by the angle-side-angle postulate, the two triangles are congruent, so x + 23 = 13, or x = -10.

6 0
2 years ago
Which expression can be used to find 15% of 20?
dezoksy [38]

Answer:

Expression:  0.15 * 20

Equation: 0.15 * 20 = 3

Step-by-step explanation:

This expression was found by dividing 15% by 100 to convert it into a decimal (0.15) that can be used to multiply with 20 to get your answer.

5 0
3 years ago
Other questions:
  • Purple paint is made with a 16:3:1 ratio of white paint:blue paint:red paint. How much white paint, in gallons, is needed in ord
    10·1 answer
  • 4/5, √9, -0.95, √32/8, 2.9, - √6 PLEASE order from least to greatest
    7·1 answer
  • it takes Jupiter 11.9 years to orbit,or go around the sun. Saturn takes 17.6 more years than Jupiter to orbit the sun. About how
    5·1 answer
  • Graphing points for equations F (x)=1/2 (x)+8
    12·1 answer
  • Check all the answers that represent the same level of precision. A. 100.6 B. 23.45 C. 1.1 D. 42
    15·1 answer
  • 30 POINTS
    12·1 answer
  • The sum of four times a number and 18 is the same as the difference of fourteen and twice a number
    7·1 answer
  • Help please with this. I would really appreciate fast help =)
    10·1 answer
  • The admission fee at an amusement park is $2.25 for children and $6.80 for adults. 288 people entered the park, and the admissio
    12·1 answer
  • What is 300 mi converted into km?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!