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3 years ago

Help me please with this maths homework

Mathematics

1 answer:

IRINA_888 [86]3 years ago

8 0

The value of the number can be equal to or less than -3

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Which is NOT a common denominator for 2/3 and 1/2 ? A. 18 B. 12 C. 6 D. 3

Iteru [2.4K]

Answer:

d. 3

Step-by-step explanation:

hope this helps!!!!!!!<3

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3 years ago

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Which expressions are equivalent to 16 x 4 minus 64 check all that apply

Reika [66]

Oof I was going to answer this but it got me confusion.

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3 years ago

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Which of the following is perfect square trinomial. Ive asked 4 times. Please Help. Will give brainlilest

Nutka1998 [239]

Answer:

Step-by-step explanation:

a perfect square trinomial is

$a^2x^2\pm2(ab)xy+b^2y^2$

factorized is

$(ax\pm by)^2$

so as you can see option A and B can't be, because they have -49y^2 and it has to be plus

so the other options are C and D

in the trinomial a=4 and b=\pm 7

the roots of a^2 and b^2

$\pm2abxy=\pm2(4)(7)xy\\\\=\pm56xy$

so it's option d with b=-7

$16x^2-56xy+49y^2$

6 0

3 years ago

The manager at the local auto shop has found that the probability that a car brought into the shop requires an oil change is 0.8

Ber [7]

Answer:

0.85

Step-by-step explanation:

Given two events A and B, the probability that either A or B occurs is given by:

$p(A\cup B) = p(A)+p(B)-p(A\cap B)$

where

$p(A)$ the probability that A occurs

$p(B)$ is the probability that B occurs

$p(A\cap B)$ is the probability that both A and B occur at the same time

In this problem, we know the following facts:

$p(o) = 0.83$ is the probability that the car requires an oil change

$p(b)=0.17$ is the probability that the car requires a brake repair

$p(o\cap b) = 0.15$ is the probability that the car requires both an oil change and brake repair

Therefore, the probability that either o (car requiring oil change) or b (car requiring brake repait) occur is:

$p(o\cup b)=p(o)+p(b)-p(o\cap b)=0.83+0.17-0.15 = 0.85$

4 0

3 years ago

Find f(3) of the following function

lakkis [162]

Answer:

$6 \times 3 - 4 = 18 - 4 = 14$

8 0

2 years ago