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Andreyy89
3 years ago
12

HELP!!! this is due in 5mins...will give brainliest-

Mathematics
2 answers:
Dahasolnce [82]3 years ago
8 0

Answer:

35

Step-by-step explanation:

No explanation bc due in 5 mins

Blizzard [7]3 years ago
4 0

Answer:

66

Step-by-step explanation:

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5cm<br> 2cm<br> 8cm<br> Volume of 3D shape
11Alexandr11 [23.1K]

Answer:

80 cm^3 (cm cubed)

Step-by-step explanation:

5 x 2 x 8

4 0
2 years ago
URGENT. <br>Q) 18, 19, 20
notsponge [240]
18. s = 5r^2 + 7......making r the subject
      s - 7 = 5r^2
      (s - 7) / 5 = r^2...by taking the sqrt of both sides, it eliminates the ^2
     ( sqrt (s-7)/5) = r

19. h = ut - 1/2gt^2....u = 100, t = 1 4/5(or 9/5)...g = 6.4
      h = (100)(9/5) - 1/2(6.4)(9/5^2)
      h = 180 - 1/2(6.4)(3.24)
      h = 180 - 3.2(3.24)
      h = 180 - 10.368
      h = 169.632 or 169 79/125

20. sorry..do not know this one
4 0
2 years ago
Read 2 more answers
Help! Click to see question!
EleoNora [17]

Answer:

B.

Step-by-step explanation:

Both equations use x squared

7 0
3 years ago
Read 2 more answers
A store sells small notebooks for $7 and large notebooks for $10 if a student buys 6 notebooks and spends $51 how many of each s
Finger [1]
He bought 3 small notebooks (3*7=21) and 3 large notebooks (3*10=30)
21+30=51
5 0
3 years ago
Read 2 more answers
What is the value of m, if the equation my2+2y−4=0 has exactly one root?
stich3 [128]

Answer:

m=\frac{-1}{4}

Step-by-step explanation:

A quadratic equation has one root if the discriminant is 0.

That is we need b^2-4ac=0 for this particular question.

Compare the following to find a,b, \text{ and } c:

ax^2+bx+c=0

my^2+2y-4=0

The variable x is representative of the variable y here.

a=m

b=2

c=-4

Plug in into b^2-4ac=0:

(2)^2-4(m)(-4)=0

4+16m=0

Subtract 4 on both sides:

16m=-4

Divide both sides by 16:

m=\frac{-4}{16}

Reduce:

m=\frac{-1}{4}

6 0
2 years ago
Read 2 more answers
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