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
dolphi86 [110]
3 years ago
12

Help me, please...................

Mathematics
2 answers:
PilotLPTM [1.2K]3 years ago
5 0

Answer:

D. is your answer

Step-by-step explanation:

When subtracting a negative, it is basically adding the absolute value of that number:

For example:

3 - ( -4 )

This is the same as:

3 + 4

Now lets take this and use it in your equation:

18 1/5 - ( -22 2/5 ) - ( -40 1/5 )

18 1/5 + 22 1/5 + 40 1/5

DENIUS [597]3 years ago
3 0

Answer:

its 222023029299320929392399 i imnot oreje

Step-by-step explanation:

You might be interested in
Alexia took out a 12-year loan for $72000 to renovate her home. If her monthly payments are $680, what is the interest rate?
mart [117]

Answer:

intrest equation

I/PT = R

$680 / $72,000 x 12 years = R

$680 / $864,000 = R

7.8703 = R

or rounded 8%

Step-by-step explanation:

3 0
3 years ago
Can someone please help me find the measure of angle ABO?
lara [203]

Answer:

m<ABO = 22 deg

Step-by-step explanation:

A tangent intersects a circle at the point of tangency making a right angle with the radius drawn to that point. That means that <BAO is a right angle and measures 90 deg. That makes the other two angles of the triangle complementary with a sum of 90 deg.

m<O + m<B = 90

68 + m<B = 90

m<B = 22

Answer: m<ABO = 22 deg

3 0
3 years ago
Solve -3x+y=-7 by slope intercept form
marin [14]

can u add picture?

if u dont add picture i cant solve sorry...

8 0
3 years ago
Help pls .. write an equation to show the function in the table .
Arisa [49]

Answer:

y = 2x - 2

Step-by-step explanation:

hope this helps

5 0
3 years ago
Read 2 more answers
If line segment BC is considered the base of triangle ABC, what is the corresponding height of the triangle?
Leni [432]

Answer:

1.6 units

Step-by-step explanation:

Coordinates of A : (-1,1)

Coordinates of B : (3,2)

Coordinates of C :( -1,-1)

Now to find the length of the sides of the triangle we will use distance formula :

d =\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

To find length of AB

A = (x_1,y_1)=(-1,1)

B= (x_2,y_2)=(3,2)

Now substitute the values in the formula:

d =\sqrt{(3-(-1))^2+(2-1)^2}

d =\sqrt{(4)^2+(1)^2}

d =\sqrt{16+1}

d =\sqrt{17}

d =4.12

Now to find length of BC

B= (x_1,y_1)=(3,2)

C = (x_2,y_2)=(-1,-1)

Now substitute the values in the formula:

d =\sqrt{(-1-3)^2+(-1-2)^2}

d =\sqrt{(-4)^2+(-3)^2}

d =\sqrt{16+9}

d =\sqrt{25}

d =5

Now to find length of AC

A = (x_1,y_1)=(-1,1)

C = (x_2,y_2)=(-1,-1)

Now substitute the values in the formula:

d =\sqrt{(-1-(-1))^2+(-1-1)^2}

d =\sqrt{(0)^2+(-2)^2}

d =\sqrt{4}

d =2

Thus the sides of triangle are of length 4.12, 5 and 2

Now to find area of triangle we will use heron's formula :

To calculate the area of given triangle we will use the heron's formula :

Area = \sqrt{s(s-a)(s-b)(s-c)}

Where s = \frac{a+b+c}{2}

a,b,c are the side lengths of triangle  

a = 4.12

b=5

c=2

Substitute the values

Now substitute the values :

s = \frac{4.12+5+2}{2}

s =5.56

Area = \sqrt{5.56(5.56-4.12)(5.56-5)(5.56-2)}

Area = 3.99

Now to find the height of altitude corresponding to side BC

So, formula of area of triangle =\frac{1}{2} \times Base \times Height

Since Area = 3.99 square units

So,3.99 =\frac{1}{2} \times BC \times Height

So,3.99 =\frac{1}{2} \times 5\times Height

3.99 =2.5 \times Height

\frac{3.99}{2.5}=Height

1.596=Height

Thus the altitude corresponding to the BC is of length 1.596 unit  ≈ 1.6 units

Thus Option D is correct.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Find the equation of the line <br><br> Y= __x + __
    14·1 answer
  • Kenya wants to buy a car. Dealer A said she could pay $2000 upfront and $150 per month after. When will she have paid $3500
    12·2 answers
  • Igloos unlimited charges $150 per night with a 50% discount for every night after the third night .if you stay for days how much
    10·1 answer
  • Express in scientific notation.<br><br> 0.041
    14·2 answers
  • The basic unit of capacity in SI is the <br> A)meter. <br> B)liter. <br> C)kilogram.
    6·1 answer
  • What is 15/21 subtracted by 5/7 equal ?
    5·2 answers
  • Use the distributive property to fill in the blanks below.
    14·1 answer
  • The side length of a square patio is 2.59 meters. Which is the best estimate for the perimeter of the patio, in meters?
    5·1 answer
  • Gerri says that if a number is a multiple of 9 it is also a multiple of 3. Do you agree ? Explain
    5·1 answer
  • This is K12 in sixth grade
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!