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
SVEN [57.7K]
2 years ago
6

Question 7

Mathematics
1 answer:
jolli1 [7]2 years ago
3 0

Answer:$15-$20

Step-by-step explanation:

56.48 is about 55 38.99 is about 40. 55-40 = 15

You might be interested in
17.
Hitman42 [59]
<h3>Solution:</h3>

Using formula (a-b)^2 = a^2-2ab+b^2

4x^{2}  - 12x + k \\  =  > (2x) ^{2}  - 2(2x)(3) +  {3}^{2}  \\  \\  =  >  {(2x)}^{2}  - 2(2x)(3) + 9

<h3>Answer:</h3>

k = 9

8 0
2 years ago
Read 2 more answers
Please can anyone help me with this I tried to do it and I got it wrong.
MatroZZZ [7]

Answer:

how do I not know it not a vires?

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Which expression is equivalent to 4 - (-7
liraira [26]

Answer:

11 is the answer

Step-by-step explanation:

4 0
2 years ago
If the following system of equations was written as a matrix equation in the form AX = C, and matrix A was expressed in the form
IrinaVladis [17]

Answer: a-b+c+d =4


Step-by-step explanation:

The given system of equation is

2x+8y=7\\4x-2y=9

from this we have the following matrices

A_1 =\begin{bmatrix}\\2 &8 \\ \\4&2 \\\end{bmatrix}\ ,X=\begin{bmatrix}\\x\\ \\y\\\end{bmatrix}\text{and}\ C=\begin{bmatrix}\\7\\ \\9\\\end{bmatrix}

the given matrix A =\begin{bmatrix}\\a &c \\ \\b &d \\\end{bmatrix}

On comparing Matrix  A_1 with Matrix A

\begin{bmatrix}\\a &c \\ \\b &d \\\end{bmatrix}=\begin{bmatrix}\\2&8 \\ \\4 &-2 \\\end{bmatrix}

we have the following values

a=2 ,b=4,c=8,d=-2

Thus a-b+c+d =2-4+8+(-2)=4

8 0
2 years ago
Read 2 more answers
A group of 10 friends ate dinner. They added a 15% tip, and it cost $99.50. What did the meal cost BEFORE the tip?
siniylev [52]
Cost of meal before tip is $86.52 

4 0
3 years ago
Read 2 more answers
Other questions:
  • The figures below show a pattern.
    8·1 answer
  • Find the area of the figure. Round to the nearest tenth if necessary.
    7·1 answer
  • How do you solve for x on letter F
    11·1 answer
  • A simple random sample of 10 people were asked how many first cousins they have. The results are listed below.
    15·1 answer
  • A 50-foot ladder leans against a wall 15 feet from the base of the wall. What is the measure of the angle formed by the ladder a
    15·2 answers
  • A rectangle has side lengths of x + 3 and 2 – x. Find an expression that describes the area of the rectangle.
    7·2 answers
  • What is the probability that this spinner will stop on blue or white when it is spun?
    7·1 answer
  • The ratio of boys to girls in a class is 3:5. There are 40 students in the class. How many
    7·1 answer
  • 2. Which other expressionhas the same value as (-14)-(-8)? Explain your reasoning.
    11·1 answer
  • Find the slope of this line
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!