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2 years ago

5 1/5 + 4 3/5 please help

Mathematics

2 answers:

True [87]2 years ago

8 0

Answer:

9 4/5

Step-by-step explanation:

5 1/5+4 3/5

26/5+23/5

lcm of the denominator is 5

26+23 everything all over 5

49/5

9 4/5

shutvik [7]2 years ago

5 0

Answer:

Step-by-step explanation:

5 1/5 + 3 3/5 =

26/5 + 18/5 =

45/5 =

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What is the solution to the inequality lx-4l=3

xxMikexx [17]

Answer: x = 7, x = 1

Step-by-step explanation:

|x-4| = 3

we know either x-4 = 3 or x-4 = -3

x-4 + 4 = 3 + 4

x = 7

x - 4 + 4 = -3 + 4

x = 1

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1 year ago

Twice the length of a rectangle is three times the width. The perimeter of the rectangle is 320 cm. Find the dimensions of the r

alekssr [168]

Answer:

106

Step-by-step explanation:

divided 320 by 3

7 0

2 years ago

laiz [17]

Answer:

B) 0.02

Step-by-step explanation:

<u>Use the Binomial Theorem</u>

$\displaystyle P(X=x)=\binom{n}{x}p^xq^{n-x}\\\\P(X=4)=\binom{30}{4}(0.30)^4(1-0.30)^{30-4}\\\\P(X=4)=\frac{30!}{4!(30-4)!}(0.30)^4(0.70)^{26}\\ \\P(X=4)=\frac{30!}{4!(26)!}(0.30)^4(0.70)^{26}\\ \\P(X=4)=\frac{30*29*28*27}{4*3*2*1}(0.30)^4(0.70)^{26}\\ \\P(X=4)=27405(0.30)^4(0.70)^{26}\\\\P(X=4)\approx0.0208$

We have the probability of success, $p=0.30$ , and the probability of failure, $q=1-0.30=0.70$ . The binomial coefficient, $\binom{n}{k}$ , represents the amount of possible combinations that $k$ items can be chosen out of $n$ items, with its respective formula $\frac{n!}{k!(n-k)!}$ .

Hence, the best choice for the probability that 4 students chosen at random from the class of 30 that want the next test to be on Monday will be option B, 0.02

7 0

2 years ago

Consider this expression

Sloan [31]

Answer:

$\displaystyle \large{(x + 9)(x - 8)}$