All categories

3 years ago

Simplify y 2 + 11y - 6y + y 2. A y4 + 5 B y4 + 5y C 2y 2 + 5 D 2y 2 + 5y

Mathematics

2 answers:

Likurg_2 [28]3 years ago

7 0

Answer:

I believe that the answer 2y^2+5y

I hope that this helps you out :)

jarptica [38.1K]3 years ago

5 0

D) 2y 2 + 5y
It should be D

You might be interested in

Which four points are coplanar

jenyasd209 [6]

Answer:

B, A, F, H

Step-by-step explanation:

8 0

3 years ago

The probability of being a universal donor is 6% (O-negative-blood type). Suppose that 6 people come to a blood drive.' a) What

Tcecarenko [31]

Answer:

$Mean = 0.36$

$SD = 0.5817$

$P(x=3) = 0.003588$

Step-by-step explanation:

Given

Let

A = Event of being a universal donor.

So:

$P(A) = 0.06$

$n = 6$

Solving (a): Mean and Standard deviation.

The mean is:

$Mean = np$

$Mean = 6 * 0.06$

$Mean = 0.36$

The standard deviation is:

$SD = \sqrt{np(1-p)}$

$SD = \sqrt{6*0.06*(1-0.06)}$

$SD = \sqrt{0.3384}$

$SD = 0.5817$

Solving (b): P(x = 3)

The event is a binomial event an dthe probability is calculated as:

$P(x) = ^nC_x * p^x * (1-p)^{n-x}$

So, we have:

$P(x=3) = ^6C_3 * 0.06^3 * (1-0.06)^{6-3}$

$P(x=3) = ^6C_3 * 0.06^3 * (1-0.06)^3$

$P(x=3) = 20 * 0.06^3 * (1-0.06)^3$

$P(x=3) = 0.003588$

7 0

3 years ago

Rain fell on four days in June. These amounts were recorded: 5 mm, 9 mm, 2 cm, and 2.6 cm. What was the total rainfall for June?

ivolga24 [154]

Hello there

The correct answer in mm would be 60 mm

1 cm = 10 mm

So it would 5+9+20+26 = 60

In cm it would be 6 cm

10 mm = 1 cm

.5+.9+2+2.6 = 6

I hope this helped ^^

8 0

3 years ago

∠A and \angle B∠B are complementary angles. If m\angle A=(6x+3)^{\circ}∠A=(6x+3)

Wewaii [24]

Answer:

Step-by-step explanation:

The angles are complimentary, so they add to 90

6x + 3 + 7x + 9 = 90 Combine like terms

13x + 12 = 90 Subtract 12 from both sides

13x = 90 - 12 Combine

13x = 78 Divide both sides by 13

x = 6

<A = 6x + 3

<A = 6*6 + 3

<A = 36 + 3

<A = 39

8 0

2 years ago

Find the value of x to the nearest tenth 10 and 35

Verdich [7]

We can use the tangent rule for this problem because the opposite x is unknown and adjacent side 10 is knwon. Since,

$tan \theta= \frac{Opposite side}{Adjacent side}$

$tan 35=\frac{x}{10}$

$0.474=\frac{x}{10}$ Since tan 35°=0.474

$0.474*10=\frac{x}{10}*10$ Multiplying each sides by 10.

4.74=x

x=4.7 (Rounded to nearest tenth)

3 0

3 years ago