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
nordsb [41]
3 years ago
12

1. The sum of three times k and eight is eleven

Mathematics
2 answers:
ludmilkaskok [199]3 years ago
4 0

Answer:

k=1

Step-by-step explanation:

3k + 8 = 11\\

Subtract 8 from both sides

3k = 3

Divide

\frac{3k}{3} = \frac{3}{3}

Simplify

k =1

LiRa [457]3 years ago
3 0

Answer:

k=1

Step-by-step explanation:

   

You might be interested in
What does 6+9 equal all together
Yuliya22 [10]

Answer:

15

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Plzz help. Giving everything.<br> D. 24.5
Lemur [1.5K]

Answer:

\frac{8}{14} = \frac{14}{x+2}  (since they're similar, set them up as a proportion to find x)

14*14 = 8(x+2) (cross multiply, solve the left side, and distribute the right side)

196 = 8x +16 (subtract 16 from both sides)

180 = 8x (divide both sides by 8)

x= 22.5 (is your answer, or C)

Step-by-step explanation:

3 0
3 years ago
find the area of a circle with a diameter of four. Either enter an exact answer in terms of Pi or use 3.14 for pi as a decimal ​
Serggg [28]

Answer:

4 pi

Step-by-step explanation:

diameter = 2r

4 =2r

r =2

area = pi × (r)^2

= pi × 2^2

= 4 pi

3 0
3 years ago
What is the total surface area
Stels [109]

We have two right triangles and three different rectangles.

The formula of an area of a right triangle:

A_T=\dfrac{1}{2}l_1l_2

l₁, l₂ - legs

We have l₁ = 20cm and l₂ = 21cm. Substitute:

A_T=\dfrac{1}{2}(20)(21)=(10)(21)=210\ cm^2

The formula of an area of a rectangle:

A_R=lw

l - length

w - width

We have:

rectangle #1: l = 22cm, w = 29cm

A_{R1}=(22)(29)=638\ cm^2

rectangle #2: l = 22cm, w = 21cm

A_{R2}=(22)(21)=462\ cm^2

rectangle #3: l = 22cm, w = 20cm

A_{R3}=(22)(20)=440\ cm^2

The total Surface Area of the triangular prism:

S.A.=2A_T+A_{R1}+A_{R2}+A_{R3}\\\\S.A.=2\cdot210+638+462+440=1960\ cm^2

3 0
3 years ago
In the above figure (not drawn to scale), Find ∠AEC.
n200080 [17]

Answer:

C. 75°

Step-by-step explanation:

We have been given a circle and we are asked to find the measure of angle AEC.

We will use Intersecting chords theorem to find the measure of angle AEC, which states that measure of angle formed inside a circle by two intersecting chords is one half the sum of the measure of the arcs intercepted by the angle and its vertical angle.

We can see that measure of arc AC is 110 degrees and measure of its vertical arc BD is 40 degrees.

m\angle AEC=\frac{110^o+40^o}{2}

m\angle AEC=\frac{150^o}{2}

m\angle AEC=75^o

Therefore, measure of angle AEC is 75 degrees and option C is the correct choice.

7 0
3 years ago
Read 2 more answers
Other questions:
  • A jacket regularly sells for $55.00. It is on sale for 25% off. What is the sale price of the jacket?
    7·1 answer
  • WILL GIVE BRAINEST <br>For the x-values 1,2,3, and so on, y-values...
    9·1 answer
  • Giving Brainliest!!! According to the bar charts, approximately how many females received recommendations for promotion?
    13·2 answers
  • PLSSSS HELPPPP MEEEEE I WILLLL<br> GIVEEEE BRAINLIEST!!!!!!!!!!!!!!!!!!!!!
    9·1 answer
  • Suppose you are doing a binary search of the list [15, 18, 2, 19, 18, 0, 8, 14, 19, 14]. How many comparisons would you need to
    12·1 answer
  • Plz plz plz plz help me
    10·1 answer
  • Simplify the expression 5 + 2 ⋅ {(2 + 5) ⋅ 5 + 5] <br><br> 1: 55 <br> 2: 85<br> 3: 105 <br> 4: 115
    8·2 answers
  • David is saving money to buy a game. So far he has saved $30, which is one-third of the total cost of the game. How much does th
    7·2 answers
  • Does anyone know how to do this?
    8·1 answer
  • Are all isosceles triangles similar? Are all right triangle similar? Are all isosceles right triangles similar? Explain.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!