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
statuscvo [17]
3 years ago
10

Please can someone help meeeee with my maths homework!!!!!!! I’m really bad at maths!!!!!!

Mathematics
1 answer:
lawyer [7]3 years ago
8 0

Answer:

Step-by-step explanation:

2a the answer is 50

we know that the sum of angles in a triangle is 180, so we do 180-90-40 to find the missing angle because two of the angle measurements are already given.

2b the answer is 76

we know that the sum of angles in a triangle is 180, so we do 180-52-52 to find the missing angle because two of the angle measurements are already given.

2c the answer is 36

we know that the sum of angles in a triangle is 180, so we do 180-126-18 to find the missing angle because two of the angle measurements are already given.

3a the answer is 134

we know that the measure of an exterior angle is the sum of the two remote interior angles, so we do 61+73

3b the answer is 126

we know that the measure of an exterior angle is the sum of the two remote interior angles, so we do 90+36

3c the answer is 92

we know that the measure of an exterior angle is the sum of the two remote interior angles, so we do 48+46

the last one, the answer is 105

to find the measure of an angle is a regular polygon, use the formula

((n-2)*180)/n  n = the number of sides

we use this to find the angle measure of the octagon, and we get 135

we use this same formula to find the angle measure of the hexagon, and we get 120

add both of those up 120+135 = 255

then subtract that from 360 because the 360-255 = 105

You might be interested in
Which of the following accurately depicts the transformation of y= x^2 to the function shown below? y=2(x-3)^2+5
sweet [91]

Answer:

Which of the following accurately depicts the transformation of y= x^2 to the function shown below? y=2(x-3)^2+5

A. Shift left 3 units, shrink vertically to 1/2 of the original height, then shift up 5 units.

B. Shift right 3 units, stretch vertically by a factor of 2, then shift up 5 units.

C. Shift up 3 units, stretch horizontally by a factor of 2, then shift left 5 units.

D. Shift 5 units right, stretch vertically by a factor of 3, then shift up 2 units.

Step-by-step explanation:

For f(x) = 4x+1 and g(x)= x^2-5, find (f/g) (x).

6 0
3 years ago
Consider the proof. Given: In △ABC, BD ⊥ AC Prove: the formula for the law of cosines, a2 = b2 + c2 – 2bccos(A) Statement Reason
loris [4]

Solution: The missing reason in Step 8 is substitution of x=c\cos (A).

Explanation:

The given steps are used to prove the formula for law of cosines.

From step 5 it is noticed that our equation is

a^2=b^2-2bx+c^2      ..... (1)

From step 7 it is noticed that the value of x is c\cos (A).

So by substituting c\cos (A) for x in equation (1) we get the equation of step 8, i.e.,

a^2=b^2-2bc\cos (A)+c^2

Hence, the missing reason in Step 8 is substitution of x=c\cos (A).



5 0
3 years ago
Read 2 more answers
How much would you need to deposit in an account now in order to have $4000 in the account in 10 years? Assume the account earns
gogolik [260]

Answer:

  $2355.06

Step-by-step explanation:

Use the compound interest formula, filling in the numbers you know. Then solve for the number you don't know.

  A = P(1 +r/n)^(nt)

where A is the account balance, P is the amount invested, r is the annual rate, n is the number of times per year interest is compounded, and t is the number of years.

Filling in the given values, we have ...

  4000 = P(1 +.053/52)^(52·10) = P(1.6984738)

  P = 4000/1.6984738 ≈ 2355.06

You would need to deposit $2355.06 in order to have $4000 in 10 years.

5 0
3 years ago
the pressure on a scuba diver at sea level is 14.7 pounds per square inch. The pressure in creases 0.445 psi for each foot of de
never [62]
Should be 14.7÷41.4= 0.355
7 0
3 years ago
Jamie has8/10 of a candy bar left over. He wants to split it into 1/3 pieces. How many 1/3 pieces can he make?
gtnhenbr [62]
You would have 24 1/3 pieces.
5 0
3 years ago
Read 2 more answers
Other questions:
  • Can somebody help and explain this plzz
    6·1 answer
  • Solve 2x+y=2x please answer for me
    7·1 answer
  • Slope of a line that goes through the points (4,-1) and (3,8)
    11·1 answer
  • Figure 1 is congruent to Figure 2.
    11·2 answers
  • The midpoint of BC is (5, -2). One endpoint is B (3,4). What are the coordinates of endpoint C?
    11·2 answers
  • Velvet fabric costs $11.49 a yard. Yvette buys 9.3 yards. Yvette's estimated cost of the velvet is
    13·1 answer
  • Data from a sample of citizens of a certain country yielded the following estimates of average TV viewing time per month for all
    13·1 answer
  • K(x) = 6 + 100<br> k(-5) =
    7·1 answer
  • Ms. Gonzales is investing $17000 at an annual interest rate of 6%
    12·1 answer
  • PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!