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iren2701 [21]
3 years ago
13

If point (-1,0) is on the line whose equation is y=2x+b, what is the value of b?

Mathematics
1 answer:
deff fn [24]3 years ago
3 0
0 = 2 (-1) + b
0 = -2 + b

2 = b
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Ray finds a log that is 90 inches long. How long is the log in feet and inches. Explain how you solved (1 yd= 3ft = 36 inches)​
Shtirlitz [24]

Answer:

7.5

Step-by-step explanation:

1 foot is 12 inches so I just divided.

6 0
3 years ago
Help me out please, im only typing this much because its making me...
Genrish500 [490]

Answer:

B.x^{2} +2x-8

Step-by-step explanation:

Here the best method to solve is by substituting the end values of the set in each option , otherwise it will a time consuming problem.

Now substitute x=-4 in all the options

A.x^{2} -2x-8

16+8-8=16>0

so out of option A and C option C is correct.

B.x^{2} +2x-8

16-8-8=0 which means for the values of x>-4 x^{2} +2x-8is less than 0

Now substitute x=2 in all the options

A.x^{2} -2x-8

4-4-8=-8<0 . so option A and C both are incorrect.

B.x^{2} +2x-8

4+4-8=0 which means for the values of x<2 x^{2} +2x-8 is less than 0

Therefore the correct option is B

6 0
3 years ago
A company logo is made up of a square and three identical triangles.
IgorLugansk [536]

Answer:

the \: area \: of \: the \: logo \: is \:  {91cm}^{2}

Step-by-step explanation:

To determine the area of the logo you have to calculate the area of the triangle and the square that comform it and then add the four areas.

Area of the square.

To calculate the area of the square you have to calculate the square of one of its sides, following the formula:

a =  {a}^{2}

Where "a" is the length of one of its side.

The side length of the square is a=7cm, so its area will be:

asquare =  {7}^{2}  \\ asquare =  {49cm}^{2}

Area of the triangles.

The three triangles are equal, they have a base equal to the side of the square, i.e. with a length of 7cm, and their height is h=4cm.

To calculate the area of one triangle, you have to multiply its base by its height and divide by 2, following the formula:

a =  \frac{b.h}{2}  \\  a =  \frac{7.4}{2}  \\ a =  \frac{28}{2}  \\ a =  {14cm}^{2}

The area calculated the correspond to one triangle, since all triangles are congruent, you have to multiply the said area by 3 to determine the area of three figures:

atriangles = 3a \\ atriangles =  {42cm}^{2}

Now that the area of all shape are calculated, you have to add them to determine the area of the logo:

alogo = asquare + atriangle \\ alogo = 49 + 42 \\ alogo =  {91cm}^{2}

4 0
3 years ago
Gerald ran 240 yards. Which answer choices are equivalent to the distance he ran?
yulyashka [42]

Answer:

8640 inches

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
. How many 4ʹ × 8ʹ sheets of plywood are required to cover a floor that is 9 m by 16 m?
Black_prince [1.1K]
[m(100cm/m)(in/2.54cm)(ft/12)]^2=(25/7.62)^2 ft^2

(9*16)m^2(25ft^2/7.62m^2)(sheets/(4*8)ft^2)≈48.44 sheets

In reality you must buy complete sheets, or integer values, so you would need 49 sheets to cover the floor :P


4 0
3 years ago
Read 2 more answers
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