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erastovalidia [21]
3 years ago
8

Write the quadric equation in standard form and then choose the value of "b" (2x-1) (x+5)=0

Mathematics
1 answer:
ASHA 777 [7]3 years ago
6 0

Answer:

2x² + 9x - 5 = 0

b = 9

Step-by-step explanation:

(2x - 1) (x + 5) = 0

Expand

2x² + 10x - x - 5 = 0

Simplify

2x² + 9x - 5 = 0

b = 9

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use the formula for the area of a trapezoid A=h(b1+b2/2), were area is A b1 and b2 are the length of the base and h is the hight
Colt1911 [192]

Answer: 300 yards

Step-by-step explanation:

Since b1 is equal to 14 yds and b2 is equal to 26 yds we can plug that into the equation below (in the image).

b1 + b2 = 14 + 26 = 40 yards

Now that we have found (b1 + b2), you can multiply that by h (the height of the trapezoid) which is 15, so we get 40 x 15 = 600.

In a lot of area equations, you will have to divide by two like in the trapezoid equation. Divide our number (600) by 2, so we get 600 ÷ 2 = 300.

300 yds is your final answer.

Hope this helps!

5 0
4 years ago
chris wants to put up a fence around his sqaure garden the garden measures 3 feet on each side .how much fencing matirial does h
RoseWind [281]

3 x 4 = 12 feet of fencing

6 0
4 years ago
Find sin0, cos0, tan0
djverab [1.8K]

Answer:

sin(θ) = 12/13, cos(θ) = 5/13, tan(θ) = 12/5

Step-by-step explanation:

We need to find sine, cosine, and tangent of theta for this triangle.

First, define the different trigonometric functions:

- sine is opposite side to the angle divided by the hypotenuse (longest side not adjacent to the 90 degree angle)

- cosine is the adjacent side next to the angle divided by the hypotenuse

- tangent is the opposite side to the angle divided by the adjacent side

Now, look at theta (θ):

- the opposite side is marked 12

- the adjacent side is marked 5

- the hypotenuse is marked 13

So:

- sin(θ) = opposite / hypotenuse = 12/13

- cos(θ) = adjacent / hypotenuse = 5/13

- tan(θ) = opposite / adjacent = 12/5

Thus the answers are: sin(θ) = 12/13, cos(θ) = 5/13, tan(θ) = 12/5.

6 0
3 years ago
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lutik1710 [3]

your slope is 1/5 ((:

if i could give you a graph i would ):

7 0
3 years ago
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A quadrilateral can be constructed with four obtuse angles. <br> True<br> False
nignag [31]
Yes it is true for example like a parrelogram that has 2 obtuse angels so which means it is true
7 0
3 years ago
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