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olga nikolaevna [1]
3 years ago
10

Someone please help me

Mathematics
1 answer:
vaieri [72.5K]3 years ago
4 0
The second one that is right or Wrong
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Nick can run the 440 yard dash in 55 seconds, and Jack can run it in 88 seconds. How great a handicap must Nick give Jack for th
Zepler [3.9K]
Jack --> 440 = rate * 88Jack --> 5 yrds/sex = rateJack in 55 seconds --> distance = 5 * 55 = 275 yrds440 - 275 = 165 yards handicap.
8 0
3 years ago
Write an equation of the circle with center (7,4)<br> and diameter 10
cestrela7 [59]
Circles follow ghe equations
(x-h)^2 + (y-k)^2 =r^2
with center (h,k) and radius r
for this circle it would be
(x-7)^2 + (y-4)^2 = 100
7 0
3 years ago
Read 2 more answers
Help me out please !!!!
Brums [2.3K]

Answer:

0.06 liters

Step-by-step explanation:

acid concentration of 65% means that it of 100 units of that solution 65 are acid, and the remaining 35 are water.

so, 100 units are 0.2 liters in this example.

that means that 65/100 × 0.2 = 0.13 liters are acid.

35/100 × 0.2 = 0.07 liters are water

we get a 50% concentration, when we have the same amount of water and acid in the solution (acid is only half of 50% of the solution).

the account of acid remains the same, as we are only adding water.

so, how much water do we need to get from 0.07 liters to 0.13 liters (the same as the already present acid) ?

0.13 - 0.07 = 0.06 liters

4 0
3 years ago
solve for x and round to the nearest tenth. this is geometry. I will mark Brainliest. please help &lt;3
Amiraneli [1.4K]

Answer:

x= 41.8°

Step-by-step explanation:

use inverse trig to find x.

sin^{-1}(\frac{4}{6})=x

type this into your calculator. (make sure the mode on your calculator is degree or it won't work)

x= 41.8

Hope This Helps:)

brainliest please

5 0
2 years ago
8•x + 10 +2x +4 •x + 8 -6
Tcecarenko [31]

Answer:

14x + 12

Step-by-step explanation:

8 times x would be 8x

4 times x would be 4x

8x+10+2x+4x+8-6

8x+2x+4x=14x

10+8-6=12

=14x + 12

5 0
3 years ago
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