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3 years ago

What is 1/2 ( 2e +5)

Mathematics

1 answer:

Degger [83]3 years ago

4 0

$\frac{1}{2}(2e+5)$ you need to expand the bracket so you will get $e+ \frac{5}{2}$

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Please help Will mark brainlist

Marina86 [1]

I think answer is b that is 10raise to 2

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2 years ago

3times square root of 81

algol [13]

27 because the square root of 81 is 9 and 9 times 3 is 27.

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3 years ago

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Consider randomly selecting a student at a large university, and let A be the event that the selected student has a Visa card an

poizon [28]

Answer:

We have that $B = 0.3$ .

$0.3 = b + (A \cap B)$

However, b is a probability, which means that it cannot be negative. So no, P(A ∩ B) cannot be 0.5. It can, at most, be 0.3.

Step-by-step explanation:

Event A:

Probability that a student has a Visa card.

Event B:

Probability that the student has a MasterCard.

We have that:

$A = a + (A \cap B)$

In which a is the probability that a student has a Visa card but not a MasterCard and $A \cap B$ is the probability that a student has both these cards.

By the same logic, we have that:

$B = b + (A \cap B)$

In this problem, we have that:

$A = 0.6, B = 0.3$

(a) Could it be the case that P(A ∩ B) = 0.5?

We have that $B = 0.3$ .

$0.3 = b + (A \cap B)$

However, b is a probability, which means that it cannot be negative. So no, P(A ∩ B) cannot be 0.5. It can, at most, be 0.3.

8 0

3 years ago

Amira is told there is a trick to finding the slope within an equation in standard form, Ax+By=C. She is told she can rewrite th

Advocard [28]

Answer:

B. In slope-intercept form, the slope is − 7/9. These values are A and B, but with the opposite sign, so the slope of the line from the equation in standard form is − A/B.

Step-by-step explanation:

Let's convert the standard equation into slope-intercept form:

Ax + By = C ⇒ subtract Ax from both sides
By = -Ax + C ⇒ divide both sides by B
y = -A/Bx + C/B ⇒ converted to slope- intercept form

As we see the slope is -A/B

The equation 7x + 9y = 14 is converted as:

y = -7/9x + 14/9, where the slope is -7/9

Looking at the answer options and the correct one is option B, where both identification of slopes match.

B. In slope-intercept form, the slope is − 7/9. These values are A and B, but with the opposite sign, so the slope of the line from the equation in standard form is − A/B.

4 0

3 years ago

<img src="https://tex.z-dn.net/?f=2%20%2B%20%28%20-%203%29%20%20%20%5E%7B2%7D%20" id="TexFormula1" title="2 + ( - 3) ^{2} " al

Troyanec [42]

Answer:

Step-by-step explanation:

$2 + ( - 3) ^{2} \\ \\ = 2 + 9 \\ \\ = 11$

4 0

2 years ago

Read 2 more answers