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
elena-14-01-66 [18.8K]
3 years ago
12

What’s 3.8 - (-7.45)

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
6 0

it is 11.25................................

You might be interested in
The length of a rectangular flower garden is 9 feet and it’s width is 5 feet how many feet of fencing will be needed
Tju [1.3M]
Use the simple perimeter formula.
P = 2L + 2W
P = 2(9) + 2(5)
P = 19 + 10
P = 29ft

Therefore 29ft of fencing will be needed.
8 0
3 years ago
Triangle PQR is transformed to triangle P'Q'R'. Triangle PQR has vertices P(4, 0), Q(0, −4), and R(−8, −4). Triangle P'Q'R' has
Whitepunk [10]

Answer:

Please find attached the required plot accomplished with an online tool

Part A:

1/4

Part B:

P''(-1, 0),  Q''(0, -1), and R''(2, -1)

Part C:

Triangle PQR is similar to triangle P''Q''R'' but they are not congruent

Step-by-step explanation:

Part A:

Triangle ΔPQR has vertices P(4, 0), Q(0, -4), R(-8, -4)

Triangle ΔP'Q'R' has vertices P'(1, 0), Q'(0, -1), R'(-2, -1)

The dimensions of the sides of the triangle are given by the relation;

l = \sqrt{\left (y_{2}-y_{1}  \right )^{2}+\left (x_{2}-x_{1}  \right )^{2}}

Where;

(x₁, y₁) and (x₂, y₂) are the coordinates on the ends of the segment

For segment PQ, we place (x₁, y₁) = (4, 0) and (x₂, y₂) = (0, -4);

By substitution into the length equation, we get;

The length of segment PQ = 4·√2

The length of segment PR = 4·√10

The length of segment RQ = 8  

The length of segment P'Q' = √2

The length of segment P'R' = √10

The length of segment R'Q' = 2

Therefore, the scale factor of the dilation of ΔPQR to ΔP'Q'R' is 1/4

Part B:

Reflection of (x, y) across the y-axis gives;

(x, y) image after reflection across the y-axis = (-x, y)

The coordinates after reflection of P'(1, 0), Q'(0, -1), R'(-2, -1) across the y-axis is given as follows;

P'(1, 0) image after reflection across the y-axis = P''(-1, 0)

Q'(0, -1) image after reflection across the y-axis = Q''(0, -1)

R'(-2, -1) image after reflection across the y-axis = R''(2, -1)

Part C:

Triangle PQR is similar to triangle P''Q''R'' but they are not congruent as the dimensions of the sides of triangle PQR and P''Q''R'' are not the same.

6 0
3 years ago
Multiply (2x^2-3x+5)(x^2+4x+1)
DochEvi [55]

Answer:

2x^2-12x+5

Step-by-step explanation:

(2x^2-3x+5)(x^2+4x+1)\\(2x^2-12x+5)

3 0
3 years ago
Put the following equation of a line into slope-intercept form, simplifying all
Rudik [331]

Answer:

y=-3x-3

Step-by-step explanation:

9x+3y=-9

This is currently in standard form, or ax+by=c.

To get it to slope-intercept form, (y=mx+b) first subtract 9x to both sides.

3y=-9x-9

Divide both sides by 3.

y=-3x-3

5 0
3 years ago
Read 2 more answers
When you (survive/accept) you get through something which is it idk
ValentinkaMS [17]
Survive because your persevering through a tough time
8 0
3 years ago
Read 2 more answers
Other questions:
  • What equals 16 in multiplication
    10·2 answers
  • will call but in basketball a team can score one point basket 2. basket or three point basket list all the different ways a bask
    15·1 answer
  • A snail can move 5 inches in 6 minutes. At this rate, how many feet can it move in 48 hours?
    5·1 answer
  • What does 4.23×9 equal
    10·2 answers
  • It's raining outside, and after 1 hour of rain, the water level in Jake's pond is 2 meters. After 3 hours, the water level is 2.
    9·2 answers
  • Y=3x+5 and y=3x-10
    6·1 answer
  • Question 5
    6·2 answers
  • Help me with this math question please I'm giving away brainliests​
    11·2 answers
  • Write two properties of Zero​
    13·2 answers
  • Morgan determined he needed 45 1/2 yards of wire fencing for his landscaping project. He already had 17 3/4 yards. How much more
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!