= Test: Chapter 1-4 Test
Question 1
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This Test: 24 pts possible
Determine whether 7 is a solution of the equation 2x - 6 = 2
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Choose the correct answer below.
O A. Yes, 7 is a solution to the equation because a false statement results after replacing x with 7
OB. No, 7 is not a solution to the equation because a false statement results after replacing x with 7
O C. No. 7 is not a solution to the equation because a true statement results after replacing x with 7
OD. Yes, 7 is a solution to the equation because a true statement results after replacing x with 7

f(x) = 9x+4

here,9*1+4=13

9*2+4=22

9*2+4=31

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.

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Answer:

12 hours

Step-by-step explanation:

X = 6:30

From 6:30 am to 6:30 pm = 12 hr

The number of hours that Ben worked at the restaurant can be calculated by the expression, Xpm - Xam.

The number of hours that Ben worked can be represented as:

= Time he finished working - Time he started working

= X pm - X am

If for instance, he started work at 7 am and finished at 12 pm, he would have worked:

= 12 - 7

= 5 hours

The expression that shows the length of time he worked can therefore be concluded to Xpm - Xam.

Find out more at https://brainly.com/question/23399575.

Answer:

30% decrease in price

Step-by-step explanation:

Since 70-49=21, we know that the price decreased by 30 pounds. The formula to find a percentage decrease is that you should then divide the original number(70) by 21(that equals 0.3!) 0.3 as a percentage would then be 30%, so the answer is there is a 30% decrease in price.

Answer:

d. 7 × (10 + 9) = (7 × 10) + (7 × 9)

Step-by-step explanation:

The format of writing numbers in distributive property is a(b+c) = (a×b)+(a×c)

We can see that in choice d. 7 × (10 + 9) = (7 × 10) + (7 × 9) it is in correct format of writing numbers in distributive property. Thus, choice d. is correct.

Verification:-

a(b+c) = (a×b)+(a×c)

7 × (10 + 9) = (7 × 10) + (7 × 9)

Answer:

√5 = 2.236.

Hence the value of root 5 up to 3 decimal places is 2.236.

Answer:

7

Step-by-step explanation:

To solve this, we have to solve for h.

We can use order of operations to figure this one out.

[tex]18h-9h-7h+3=17\\18h-9h-7h=14[/tex]

Now that every variable on the left side of the equation has an h, we can factor.

[tex]h(18-9-7)=14\\h=\frac{14}{18-9-7} \\h=\frac{14}{2} \\h=7[/tex]

Answer:

6

I just did some trial and error with the numbers

186-96-76+3=17

Unless I did it wrong, then just ignore this answer

9514 1404 393

Answer:

  12,00,000 rupees

Step-by-step explanation:

The fraction originally intended for each son was ...

  (1/3)(1 -2/5) = 1/3(3/5) = 1/5

The fraction each son actually received was ...

  (1 -1/6)(1/5) = (5/6)(1/5) = 1/6

The difference in these amounts as a fraction of the original distribution is ...

  1/5 - 1/6 = (6/30) -(5/30) = 1/30

Then the original distribution is 30 times this difference:

  30×40000 rupees = 12,00,000 rupees

_____

Additional comment

Originally-intended distribution (rupees):

Actual distribution:

1,00,000 = 1 lakh

Answer:

X=22

Step-by-step explanation:

258 ÷ 11 = 23.454 repeating. 22 = X is the closest answer to 23. High chance it is 22.

Answer:

a) 0, b) 219, e) 2

Step-by-step explanation:

A whole number is any non-negative integer, so no fractions, decimals, or negative numbers. Anything else however works.

Answer:

Angle 4 and angle 5 also equal 180

Because angles 4 and 5 are supplementary angles (two angles that add to 180) and because 4 and 5 equal 180 that means that 5 equals 6. So 5 and 6 are congruence angels

Step-by-step explanation:

given :

The driving distance from Los Angeles to a Chicago is 2,054 mi. The distance from Chicago to Boston is 983 mi.

so, the numbers of mile driving from Los Angeles to Boston though Chicago =

2,054 + 983 = 3.037 mi

The next term of the sequence of the numbers 2, 5, 4, 10, 8, 20, is 16.

A Sequence is a list of numbers that are in order. Sequence follows a particular pattern.

Therefore, let's study the pattern of the sequence to know the next term.

2, 5, 4, 10, 8, 20,

The pattern can be explained as follows;

2(2) = 4

5(2) = 10

10(2) = 20

8(2) = 16

Therefore, the next term of the sequence of the number is 16.

learn more on sequence here: https://brainly.com/question/970732

Unit analysis is a method used to convert from one unit of measure to another. In a unit analysis problem, we place measurements into fraction form, build a product of fractions, and eliminate unwanted units. The steps for performing a unit analysis are as follows: Determine what conversion facts are needed

Answer:

6.38 × 0.08 = 5,104 not 6,9768 .

step by step attached

Answer:

235 cm^2

Step-by-step explanation:

First you should divide this shape into to rectangles or squares. Then you can easily find the area.

20-11=9

We have a rectangle and a square.

(11*14) + (9*9)

Answer:

A = 235 cm²

Step-by-step explanation:

The figure is composed of 2 rectangles.

main rectangle has dimensions length = 20 cm , breadth = 9 cm

The attached rectangle , on top has dimensions

length = 11 cm , breadth = 14 - 9 = 5 cm

Total area (A) is the sum of the areas of the 2 rectangles

A = (20 × 9) + (11 × 5) = 180 + 55 = 235 cm²

Answer:

y=-5+2/3(x)

Step-by-step explanation:

take 2x-3y=15, then subtract 2x from both sides

       -2x      -2x

that gives you -3y=15-2x

divide by -3

-3y=15-2x

________

      3

that gives you y=-5+2/3(x)

Answer:

Answer:

x < 4

Step-by-step explanation:

Answer:

Step-by-step explanation:

2*x = 3(x - 1)-15           Remove the brackets

The larger of two consecutive integers is x

The smaller of two consecutive integers is x - 1

2x = 3x - 3 - 15              Combine the right

2x = 3x - 18                   Subtract 3x from both sides

2x - 3x = 3x-3x - 18       Combine

-x = - 18                         Multiply by - 1

x = 18

x - 1 = 17

Answer

[tex]\frac{4}{5}[/tex]；0

Step-by-step explanation:

Log3 81- loge 1=4-0=4

And then 2 minus negative 3 is 5 so the answer is 4/5

144, 0

Answer:

there are 2 circles for each square

Answer:

OC 12

Step-by-step explanation:

:)

the answer is 14 !

Step-by-step explanation:

sorry i think its 14 its 14 beacuse if u subtract 16-2=14 14x1=14

Answer:

lol this is easy use a cal  4 x

Step-by-step explanation:

We want to see which is the conic equation that has 2 squares with the same sign and different leading coefficients.

We will see that it is the equation of the ellipse.

Now let's see why that is the correct answer.

The general conic equation is of the form:

[tex]A*(x - a)^2 + B*(x - b)^2 = R^2[/tex]

Where A and B are the leading coefficients, (a, b) is the center of the figure, and R is the average radius of the figure.

For example, if A = B, this would be the equation of a circle, but we must have two different leading coefficients.

If we write:

A = 1/C

B = 1/K

(both are positive, because "it has two squares with the same signs").

Then we get the equation:

[tex]\frac{ (x - a)^2}{C} + \frac{(x - b)^2}{K} = R^2[/tex]

We get the equation we wanted.

The same sign in both square parts and different leading coefficients.

The above equation is the general equation of an ellipse.

If you want to learn more, you can read:

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Answer:

x = 16

Step-by-step explanation:

6x + 3 = 7x -19

3 + 19 = 7x - 6x

22 = x

so

=6x + 3

=6× 22 +3

=135°

then

=7x - 19

=7 × 22 -19

=135°

Answer:

(6x+3)=(7x-19)

-x+3=-19

-x=-22

x=22

Step-by-step explanation:

Answer:

-45

Step-by-step explanation:

Get a common denominator

4y/9-6y/9=10

-2y/9=10

Multiply by 9

-2y=90

Divide by -2

y = -45