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
Rainbow [258]
3 years ago
8

Can someone please help me??

Mathematics
2 answers:
aivan3 [116]3 years ago
4 0

Answer:

-16 is the answer after evaluating

Step-by-step explanation:

{b }^{2}  - 7b - 6 \\ 5 { }^{2}  - 7 \times 5 -6 \\ 25 - 35 - 6 \\ 25 - 41 \\  - 16

Dmitry [639]3 years ago
4 0

Answer:

-16

Step-by-step explanation:

Substitute 'b' for 5

5^{2} - 7(5) - 6

solve

25 - 35 - 6 =

You might be interested in
1. What is the sine ratio of ∠C?
Elenna [48]

Answer:

1. Sine ratio of angle ∠C = 12/13

2. cos ratio for ∠C = 6/10

Step-by-step explanation:

1. sin = perpendicular /hypotuse

=> 12/13

2. cos = base / hypotuse

=> 6/10

8 0
2 years ago
What value of x will satisfy the equation 0.2(x −2,700) = x?
diamong [38]
X = -675
I hope this helps! :)
Solve for x, distibutive 0.2:0.2x - 540
Subtract 0.2x to each side: -540 = x - 0.2x
Combine x: -540 = 0.8x
Divide 0.8 to each side: x = -540/0.8 = -675
4 0
3 years ago
The three sides of a triangle are 4cm, 6cm and 8cm.
yarga [219]

Answer:

In bold below.

Step-by-step explanation:

(a) The largest angle is opposite the largest side.

So by the Cosine Rule:

8^2 = 4^2 + 6^2 - 2*4*6 cos x

cos x =  (8^2 - 4^2 - 6^2) / (-2*4* 6)

= -0.25.

x = 104.48 degrees.

(b) Area of the triangle = 1/2 * 4 * 6 sin 104.48

= 11.62

= 3 √15.

(c)  The shortest altitude will have the longest sides as the base.

Area = 1/2 * altitude * base

3√15 = 1/2 * 8 * a

a = 3√15 / 4 cm

= 0.75√15 cm.

6 0
3 years ago
Helppppppppppppppppp
iris [78.8K]
<h3>Answer:</h3>

A. None of the factors were negative

because when you multiply or divide an inequality by a negative number you must flip the inequality sign.

Hope this helps you! :)

4 0
3 years ago
A vegetable garden and a surrounding as a shaped like a square that together a 11 ft wide. The path is 2 feet wide. If one bag o
Alexxandr [17]

Answer:

\displaystyle     4

Step-by-step explanation:

we are given that A vegetable garden and a surrounding as a shaped like a square that together a 11 ft wide. The path is 2 feet wide.since together the width of Vegetable garden and path is 11 ft, the width of the vegetables garden will be the difference between the total width and the width of path Thus,

\displaystyle  \rm W _{ garden} = 11 - 2

simplify substraction:

\displaystyle  \rm W _{ garden} = 9

recall that, every single side of a square is equal to each other therefore the the area of the garden will be

\displaystyle    {9}^{2}

simplify square:

\displaystyle    81

together the garden and path makes a square of every side length 11 ft saying that the area will be:

\displaystyle    {11}^{2}

simplify square:

\displaystyle    121

the area of path will be the difference between the total area and the garden area therefore,

\displaystyle    121 - 81

simplify addition:

\displaystyle    40

to figure out how many bags are needed to cover the path. we just need to divide the area of the path by the area of a bag of gravel and that yields:

\displaystyle     \frac{40}{10}

simplify division:

\displaystyle     \boxed{\rm4}

hence,

<u>4</u> bags are needed to cover the path.

7 0
3 years ago
Other questions:
  • !!!!PLEASE HELPPPP ITS DUE SOON!!!!
    13·1 answer
  • Keiko is mixing 4 cups of concrete to make a stepping stone. She needs 1.5 cups of sand and 2.5 cups of cement mix.
    11·2 answers
  • How to round to the nearest hundred
    8·2 answers
  • Expand and reduce:<br> A = – 3 (5 x – 4)<br> B = (2 x – 8) (4 x – 7)
    14·1 answer
  • Picture Included PLEASE help
    8·1 answer
  • Plz help answer the question
    6·2 answers
  • Paul is selling his paintings at the town square. He has 32 paintings to sell in all and needs to sell at least 17 paintings in
    9·1 answer
  • An online furniture store sells chairs and tables. Each day, the store can
    6·1 answer
  • What is the sum of the interior angles of a rectangle?<br> 4°<br> 360°<br> 180°<br> 90°
    15·2 answers
  • Hello, thanks for the fast reply! I was trying to make sense of the following equation:
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!