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3 years ago

15

DONT SKIP PLEASE ILL GIVE BRAINLIEST

2 answers:

cricket20 [7]3 years ago

8 0

Answer:

B. -5 - 1/8

Step-by-step explanation:

(-1/2) * 10 = -5

(-1/2) * 1/4 = -1/8

(-1/2)(10 + 1/4) = -5 - 1/8

Sonja [21]3 years ago

7 0

Answer:

B. -5-1/8

Step-by-step explanation:

<em>using distributive law</em> a(b+c) = ab + ac

-1/2{10 + 1/4} = -1/2(10) + -1/2(1/4)

=-5 - 1/8

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Solve x^2+2x+7=0 using the quadratic formula.

Aneli [31]

Answer:

$x=-1\pm \sqrt{6}i$

Step-by-step explanation:

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

$x=\frac{-(2)\pm\sqrt{2^2-4(1)(7)}}{2(1)}$

$x=\frac{-2\pm\sqrt{4-28}}{2}$

$x=\frac{-2\pm\sqrt{-24}}{2}$

$x=\frac{-2\pm\sqrt{-1*24}}{2}$

$x=\frac{-2\pm\sqrt{-1}\sqrt{24}}{2}$

$x=\frac{-2\pm i\sqrt{4*6}}{2}$

$x=\frac{-2\pm i\sqrt{4}\sqrt{6}}{2}$

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5 0

3 years ago

Joan has a square flower bed with a side length of 5 meters filled with tulips. there are a total of 375 tulips in the bed. find

erma4kov [3.2K]

Answer:

the answer is 15

Step-by-step explanation:

density= total population/surface area

density= 375/5^2

density=375/25=15

8 0

2 years ago

Ber [7]

-5 1/3, -2 1/2, 3.75, 4.2 ( this is the order from least to greatest)

5 0

3 years ago

10 small and 8 large cost $192. 20 small and 1 large cost $99. What is cost of a small

seraphim [82]

Answer:

Step-by-step explanation:

small=s, s=3.99

large=l, l=19.20

10s+8l=192.20

20s+l=99

we can see that in the second equation, 20s+l=99

l=99-20s

lets replace l in the first equation

10s+8(99-20s)=192.20

10s+792-160s=192.20

-150s=-792+192.20

150s=599.80

s=3.99

l=99-20(3.99)=99-79.80=19.20

7 0

2 years ago

Read 2 more answers

Over the past 7 years, Ms. McDonald raised corn for her pigs. She has found that 5 out of 7 seeds produce corn. She wants to hav

Eva8 [605]

Answer: 14,000 seeds

Step-by-step explanation: hope this helps<3

7 0

3 years ago