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3 years ago

Ignore the answers! I need help I’ll mark u brainly

Mathematics

2 answers:

Vinil7 [7]3 years ago

8 0

7. X2=25
X=5, x=—5

8. (X—3)2=49
X=10, x=—4

9. X2+3x—28.
X=4, x=—7.

10. 5x2–8=3x.
X=8/5, x=—1

muminat3 years ago

8 0

Answer:

ignore the things at the top haha. the question number is on the top left hand corner of the bubbles and i circled the answers. hope this helps!

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In another 30 weeks, because 2x3x5=30 weeks where she does all of the activities.

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3 years ago

Fill in the blank. The absolute value of every nonzero integer is a(n) _____ integer.

Sedbober [7]

Answer: positive

The absolute value of every nonzero integer is a positive integer.

Examples are

|-2| = 2

|7| = 7

The absolute value represents distance which can never be negative. Negative distance does not make sense.

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4 years ago

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Fred flips a coin, spins the spinner, and rolls a standard number cube. Find the probability that the coin will show tails, the

Inessa05 [86]

Answer:

The probability that the coin will show tails, the spinner will land on yellow or green (out of yellow, green, blue), and the cube will show a three is $\frac{4}{3}$

Step-by-step explanation:

Given : Fred flips a coin, spins the spinner, and rolls a standard number cube.

To find : The probability that the coin will show tails, the spinner will land on yellow or green (out of yellow, green, blue), and the cube will show a three ?

Solution :

First we find probability one by one,

1) Flips a coin - Head, Tail

Total number of outcome = 2

Favorable outcome (getting a tail) = 1

Probability that the coin will show tails is $P(T)=\frac{1}{2}$

2) Spins the spinner - yellow, green, blue

Total number of outcome = 3

Favorable outcome (land on yellow or green) = 2

Probability that the spinner will land on yellow or green $P(S)=\frac{2}{3}$

3) Rolls a standard number cube - 1,2,3,4,5,6

Total number of outcome = 6

Favorable outcome (show a three) = 1

Probability that the cube will show a three $P(C)=\frac{1}{6}$

The probability that the coin will show tails, the spinner will land on yellow or green (out of yellow, green, blue), and the cube will show a three is

$P=P(T)+P(S)+P(C)$

$P=\frac{1}{2}+\frac{2}{3}+\frac{1}{6}$

$P=\frac{3+4+1}{6}$

$P=\frac{8}{6}$

$P=\frac{4}{3}$

Therefore, The probability that the coin will show tails, the spinner will land on yellow or green (out of yellow, green, blue), and the cube will show a three is $\frac{4}{3}$

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3 years ago

Solve for Х. 16 20 A 25.6 В 6 С 12 D 15

777dan777 [17]

Answer:

12 which is on C

Step-by-step explanation:

use pathogoras theorem

a^2+b^2=c^2

16^2+b^2=20^2

256+b^2=400

b^2=400-256

b^2=144

b= square root of 144

b= 12

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3 years ago

I NEED HELP WITH MY FINALL

sweet [91]

what you need help with?

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3 years ago

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