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4 years ago

A trapezoid has sides measuring 6cm and 10cm, what is the third side?

Mathematics

1 answer:

Anna71 [15]4 years ago

8 0

Answer:

https://www.google.com/url?sa=i&source=images&cd=&ved=2ahUKEwjTs6Grhv3gAhUSJTQIHacODEgQjRx6BAgBEAU&url=http%3A%2F%2Fwww.1728.org%2Fquadtrap.htm&psig=AOvVaw1WUFCr5yJyx6GQDh_caBfn&ust=1552495399972536

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Plz help me with this it's really important Riverside elementary school is holding a school-wide election to choose a school col

Alborosie

⅝ of the votes were for blue. That leaves ⅜ of the votes remaining. 5/9 of the remaining ⅜ votes were for green, so you multiply 5/9 x ⅜ = 15/72 votes for green. ⅝ of the votes were for blue, so you can multiply the fraction by 9/9 to get 45/72. So 45/72 votes were for blue, and 15/72 votes were for green. That leaves 12/72 votes remaining, which were for red. Since the question says 48 votes out of the total number of votes were for red, this means 48/v = 12/72 (v = the total number of votes). Cross multiply and solve for v to get v = 288. The fraction for blue is ⅝, so you can say x/288 = ⅝ (x = the number of votes for blue). Cross multiply and solve for x to get x = 180 votes for blue.

8 0

3 years ago

Gabe rounds 9.456 to the nearest hundredth. Then, he rounds the result to the nearest tenth. Last, he rounds that result to the

larisa86 [58]

Answer:

390

Step-by-step explanation:

4 0

3 years ago

A rectangle is twice as long as it is wide. If its length and width are both increased by 3 m, its area is increased by 63 meter

S_A_V [24]

Answer:

189

Step-by-step explanation:

by multiplying the given value

6 0

3 years ago

3(2x + 4y - 2z) + 7(x + y - 4z)

guapka [62]

Step:6x+12y-6z+7x+7y-28z
Answer:13x+19y-34z

4 0

3 years ago

Give a third degree polynomial that has zeros of 13, 5i, and −5i, and has a value of −680 when x=3. Write the polynomial in stan

Vikki [24]

Answer:

$\dfrac{17x^3-221x^2+425x-5525}{9}\\$

Step-by-step explanation:

hello

we need to find something like, a being real

$a(x-13)(x-5i)(x+5i)$

with a so that

$a(3-13)(3-5i)(3+5i)=-680\\\\a(-10)(3^2-(5i)^2)= -10(9+25)a=-360a=-680\\ a = \dfrac{680}{360}=\dfrac{17*40}{9*40}=\dfrac{17}{9}$

so the third degree polynomial that we are looking for is

$\dfrac{17}{9}(x-13)(x-5i)(x+5i)\\=\dfrac{17}{9}(x-13)(x^2+25)\\\\=\dfrac{17}{9}(x^3+25x-13x^2-13*25)\\\\\\=\dfrac{17}{9}(x^3-13x^2+25x-325)\\\\\\\\=\dfrac{17}{9}x^3-\dfrac{17*13}{9}x^2+\dfrac{17*25}{9}x-\dfrac{17*325}{9}\\=\dfrac{17}{9}x^3-\dfrac{221}{9}x^2+\dfrac{425}{9}x-\dfrac{5525}{9}\\$

hope this helps

3 0

4 years ago