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3 years ago

I need help...............

Mathematics

2 answers:

Marta_Voda [28]3 years ago

7 0

Answer:

Step-by-step explanation:

Sorry if i am wrong the picture was a little hard to see! Also can i have brainlist?

Viefleur [7K]3 years ago

4 0

Answer:

Step-by-step explanation:

You can see that it "rises" 700 and "runs" 100, that means that there is a slope of 700/100. If you simplify that, it turn out to be a slope of 7. Meaning that each ticket costs $7. Hope this helps, let me know if you need a better explanation!

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The relation {(-1, 4), (2, 7), (3, 7)} is a function. True False

Mariana [72]

False...........................

5 0

3 years ago

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Sarah is selling bracelets and necklaces to make money for her summer vacation. The bracelets cost $2 and the necklaces cost $3.

marusya05 [52]

Answer:

85 Necklaces and ----- Bracelets.

Step-by-step explanation:

500 Divided by 2 = 250, The 500 is the amount in total,The 250 is the amount of bracelets and necklaces needed for 500$ To be a accurate number for 'Sarah's ' Situation. Now 250 divided by 2 is 125. It was divided by 2 so it can be the amount the bracelets cost. Or instead of dividing to get 250, You can multiply and do 2x125=250, So them add Go on from there, Its not to hard but if you need more help I'm here!

Now for the necklace portion of it. 3x80=240, So she sold 80 necklaces. Than sold 3 more. Now you have a total of 250.

5 0

3 years ago

ASAP! WILL MARK BRAINLIEST!!

Naya [18.7K]

Answer:

y=x+5+x+5?

Step-by-step explanation:

I'm not sure and I did this not that long ago

5 0

3 years ago

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José left Westcliffe on his bicycle riding at an average rate of 8 miles per hour five hours before his father left by automobil

Serga [27]

Answer:

48 miles per hour

Step-by-step explanation:

José left Westcliffe on his bicycle riding at an average rate of 8 miles per hour five hours before his father left by automobile. The father overtook José in exactly one hour. This means Jose was riding

5 hours + 1 hour = 6 hours.

Use formula

$D=r\cdot t,$

where

D = distance

r = rate

t = time

In Jose's case,

D = unknown

r = 8 miles per hour

t = 6 hours

Hence,

$D=8\cdot 6=48\ miles$

In Jose's father case,

D = 48 miles

r = unknown

t = 1 hour (father overtook José in exactly one hour)

Hence,

$48=r\cdot 1\\ \\r=48\ miles \ per \ hour$

4 0

4 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