Mathematics High School

-7b - 4(b + 7) = -3b - 4(b - 2)

Answers

Answer 1

Answer:

b= -9

( I hope this was helpful) >;D

Answer 2

Answer:

b=-9

Step-by-step explanation:

Related Questions

Solve the following system.

y = -2x^2 + 3x - 1 and x + y = -1.

The solutions are
and

Answers

Given:

The equations of a system of equations are

[tex]y=-2x^2+3x-1[/tex]

[tex]x+y=-1[/tex]

To find:

The solution of the given system of equations.

Solution:

We have,

[tex]y=-2x^2+3x-1[/tex] ...(i)

[tex]x+y=-1[/tex] ...(ii)

Using (i) and (ii), we get

[tex]x+(-2x^2+3x-1)=-1[/tex]

[tex]x-2x^2+3x-1+1=0[/tex]

[tex]-2x^2+4x=0[/tex]

Taking out the common factors.

[tex]2x(-x+2)=0[/tex]

Using zero product property,we get

[tex]2x=0[/tex] and [tex]-x+2=0[/tex]

[tex]x=0[/tex] and [tex]2=x[/tex]

For x=0, we have

[tex]0+y=-1[/tex]

[tex]y=-1[/tex]

For x=2, we have

[tex]2+y=-1[/tex]

[tex]y=-1-2[/tex]

[tex]y=-3[/tex]

Therefore, the two solutions of the given system of equations are (0,-1) and (2,-3).

The price ( p) of a school lunch is 8:50 The restaurant increases the price by 12% which statement is true for this situation

Answers

Answer:

Step-by-step explanation:

1 is 100% so increasing it by 12% means adding 0.12 to it

Evaluate the expression when y = 6 and x = 9
x+8y

Answers

Answer:

Step-by-step explanation:

9+8(6)

9+48

Answer:

Step-by-step explanation:

8*6=48

9+48=57

Meteorology: The temperature is 8 degrees. It is expected to fall 5 degrees each hour for the next several hours. In how many hours will the temperature be-7 degrees

Answers

Answer:

Step-by-step explanation:

8 - 5 = 3+7 = 10 Temperature

Apply the Pythagorean Theorem to find the distance between points A and C

A: 29 units
B: 40 units
C: 58 units
D: 116 units

Answers

Answer:

c 116

Step-by-step explanation:

Answer:

The answer is c

Step-by-step explanation:

I need help How many more Onions dose katrina need to cut.

Answers

The answer is 2 1/3

noodlde noodle

Answer:

Step-by-step explanation:

I really need the answer to this so I can pass

Answers

Answer:

Step-by-step explanation:

It’s b sorry if that’s wrong

what is the perimeter?

Answers

Answer:

40 yards

Step-by-step explanation:

I think this is correct

Answer:

perimeter is the length of the outside shape

What is the next term in the sequence?
-3, -7/2, -4, -9/2.....

Answers

-3 , -7/2, -4, -9/2. = -3 , -7/2, -4, -9/2, -5 , And = -5

i don't understand this at all plz just help no explanation needed

Answers

Answer: 24

Step-by-step explanation:

i solved it and can give explanation if needed :)

What is the inequality shown?
-6
-5
-4
-3
-2.
-1
0
1
3
1
4
5
6

Answers

Answer:

1 is inequality

replace the value were _2.

solve for 65+5x and please show work :)

Answers

Answer:

If it were supposed to be a factor, 15 ( 3 + x )

Step-by-step explanation:

5 ( 13 + x )

5 x 13 = 65

5 times x = 5x

So you'd add them both,

65 + 5x

I don't think you can get an exact answer for it.

Also in order for me to solve for x, if that's what you are trying to find. You need to give me a (y) to make it into a slope intercept form.

what number is 12% of 90

Answers

Answer:

10.8

Step-by-step explanation:

i used a calculator

10.8

12% = 10% + 1% + 1%

10 percent of a number is that number but with the decimal point 1 to the left. 10% of 90.0 is 9.0

1% of a number is that number but with the decimal point two to the left. 1% of 90.0 is 0.9

9 + 0.9 + 0.9 = 10.8

10.8 is 12% of 90

Can someone please help me out it would be so nice

Answers

Quadrant 1
Think of the quadrants like the letter c starting from the top right going to the bottom right

a regular nonagon would have 9 lines of symmetry
because it can be rotated 9 times and still look like the same shape

Answer:

Quadrant 1

Step-by-step explanation:

because there are 4 Quadrant. top left is quadrant 2, bottom left is quadrant 3, bottom right is quadrant 4

As a fraction in simplest terms, what would you multiply the first number by to get
the second?
First number: 25
Second number: 30
25
= 30
Submit Answer

Answers

1.2 I think that’s the answer because 30 divided by 25 is 1.2

Somebody help me out please

Answers

Answer:

So need me to solve it?

Step-by-step explanation:

Elizabeth has a loyalty card good for a 10% discount at her local grocery store. What would her total in dollars and cents be, after the discount and before tax, if the total cost of all the items she wants to buy is $37.60? Round to the nearest cent.

Answers

Answer:

$33.84

Step-by-step explanation:

Sale price = price - 10% = 90%

90% = 0.9

37.6(0.9) = $33.84

Find the area of the triangle

Answers

Answer:

15 cm^2

Step-by-step explanation:

area = b x h / 2

6 x 5 / 2

6 x 5 = 30

30 / 2 = 15

5x6 divided by 1/2 =15 cm squared.

The diameter of the circle shown below is 12m. What is the area of the circle?

Answers

Answer:

Step-by-step explanation:

A = 1/4 pie d2

= 1/4(22/7)(12)2

= 1/4(22/7)144

= 113.1

Answer:

72π

Step-by-step explanation:

A = 2πr^2

2π (6)(6) = 72π

here is another math thingy

Answers

Answer:

17 mi

Step-by-step explanation:

170/10=17

Answer:

Step-by-step explanation:

170 divided by 10 = 17

Double check: 17 x 10 = 170 (area).

Hope this helps! If it did, please give brainliest! It would help a lot! Thanks! :D

I need help pleaseee

Answers

Answer:Median

Step-by-step explanation:

Answer:

the answer is range

Step-by-step explanation:

sorry if i am wrong

Find all the factors of 70

Answers

1, 2, 5, 7, 10, 14, 35, 70.

What is the area of a circle that has a radius of 10 inches? Use the formula π r 2

Answers

Answer:

314in²

Step-by-step explanation:

Given : Radius of the circle r=10 inches

A = 3.14 x 10²

A = 3.14 x 100

A = 314in²

The cafeteria is set up for a luncheon. There are 5 rows of tables. There are 5 tables in each row. Each table has a centerpiece with 5 vases. In each vase, there are 5 flowers. Which shows the total number of flowers in the cafeteria?

Answers

one twenty five 125 :)))

The length of a guys wire supporting a cell tower is 120 meters. The guy wire is anchored to the ground at a distance of 80 meters from the base of the tower . To the nearest hundredth of a meter , how tall is the tower ?

Answers

Answer: 89.4427

Step-by-step explanation: I apologize if I am wrong; I used Pythagorean Thyreom, and I used the formula a=√c^2-b^2 since we are solving for side a.

a=√120^2−80^2

a=√14400−6400

a=√8000

a=89.4427

I hope this is what you are looking for :)

Pythagoras is the sum of the square of two sides is equal to the square of the longest side. Then the height of the tower is 89.44 m.

What is a right-angle triangle?

It is a type of triangle in which one angle is 90 degrees and it follows the Pythagoras theorem and we can use the trigonometry function.

The length of a guy's wire supporting a cell tower is 120 meters.

The guy wire is anchored to the ground at a distance of 80 meters from the base of the tower.

We know that the Pythagoras theorem.

[tex]\rm H^2 = P^2 + B^2[/tex]

We have

H = 120 m

B = 80 m

Then by the Pythagoras theorem, we have

[tex]\rm P = \sqrt{H^2 - B^2}\\\\P = \sqrt{120^2 - 80^2}\\\\P = \sqrt{14400 - 6400}\\\\P = \sqrt{8000} = 89.44[/tex]

Thus, the height of the tower is 89.44 m.

More about the right-angle triangle link is given below.

https://brainly.com/question/3770177

Find 5 less than 17.

Answers

17 - 5 = 12 or 5 - 17 = -12

It’s 12, or 17-5= 12

A quilt was originally priced at $25 but went on sale for 20% off. If Pamela bought the quilt and paid 10% sales tax, how much did she pay in total?

Answers

Answer:

22.20

Step-by-step explanation:

25 × .80 ×1.10=22.20

Who know this please I need help asap !!

Answers

The answer should be 65

Answer:

Step-by-step explanation:

[tex]tan\theta =\frac{12}{5}\\ \\ \theta =tan{-1}\frac{12}{5}\\ \\ \theta =67.38^o\\ \\ \theta \approx 67^o[/tex]

What is the simplified expression for ......

Answers

Answer:

a. 6^1

Step-by-step explanation:

i hope this helps :)

Answer:

B. 6^2

Step-by-step explanation:

6^7 / 6^5 = 6 ^2

Hope that helps!

Mom's car is 180 inches long. Dad's truck is 75% longer than mom's car. How long is the truck?

Answers

Answer:

315 inches

Step-by-step explanation:

180(1.75) = 315

Answer:

315

Step-by-step explanation:

Other Questions

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