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4 years ago

Please answer this correctly without making mistakes

Mathematics

2 answers:

torisob [31]4 years ago

8 0

Answer:

Step-by-step explanation:

im sure this time

bc the side is 3

arlik [135]4 years ago

7 0

Answer:

The perimeter is 26 yards

Step-by-step explanation:

Area of rectangle = A= l x w

1st rectangle = 6 x 5 = 30 yards squared

2nd rectangle= 10 x 3 = 30 yards squared

perimeter of rectangle = 2l+2w= 10 + 10 + 3 + 3= 26

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compute the value of the discriminant and give the number of real solutions of the quadratic equation. -2x²+3x+5=0

SCORPION-xisa [38]

Given a quadratic equation in standard form

$y=ax^2+bx+c$

The discriminant D

$D=b^2-4ac$

tells the types of roots the equation has.

In this case, we have

$\begin{gathered} -2x^2+3x+5=0 \\ a=-2 \\ b=3 \\ c=5 \end{gathered}$

Then, the discriminant of this quadratic equation will be

$\begin{gathered} D=b^2-4ac \\ D=(3)^2-4(-2)(5) \\ D=9+40 \\ \mathbf{D=49} \end{gathered}$

Finally, the value of discriminat is 49 and as he discriminant is greater than zero then this quadratic equation has 2 different real solutions.

8 0

1 year ago

1. Joe used the Pythagorean theorem to make sure the picture frame he made is a precise

Alex

Answer:

6 inches

Step-by-step explanation:

$a^2+b^2=c^2$

$8^2+b^2=10^2$

$64+b^2=100$

$100-64=b^2$

$b^2=6^2$

-----------------------------------------------------------

8 0

3 years ago

For f(x) = 2x + 8, find x when f(x) = -7.

Allushta [10]

-7 = 2x + 8

Solve for x. First subtract 8 to both sides.

-7 - (8) = 2x + 8 - (8)

-15 = 2x

Divide by 2.

-15/(2) = -2x/(2)

x = -15/2 = -7.5

5 0

3 years ago

The scale of the map is missing. the actual distance from Liberty to West Quall is 72 miles, and it is 6 inches on the map.

podryga [215]

72:6

Scale: 72/6=12 --> 1: 12

4*12=foston from west quall
48miles=foston from west quall

5 0

3 years ago

Faye has a bag that contains 10 red, 13 blue, 16 white, 10 green, and 11 black marbles. She pulls a marble out of the bag withou

Rudik [331]

D i believe it’s the correct answer

5 0

3 years ago

Read 2 more answers