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3 years ago

Can anybody please help me with this one?

Mathematics

1 answer:

zhenek [66]3 years ago

8 0

Answer:

0.81

Step-by-step explanation:

The probability that multiple independent events will occur is the product of the probabilities of each of them.

p((<2pm on day 1) & (<2pm on day 2)) = p(<2pm on day 1)×p(<2pm on day 2)

= (0.9)(0.9)

p(before 2 pm on both days) = 0.81

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A mirror frame in the shape of an oval is shown below. The ends of the frame form semicircles:

Volgvan

Answer:

abcdefghijklmnopqrstuvwxyz

Step-by-step explanation:

4 0

2 years ago

Nia and Trey both had sore throats, so their mom told them to gargle with warm salt water. Nia mixed 1 teaspoon salt with 3 cups

Harrizon [31]

Answer:

Each mixture has the same amount of salt for every 1 cup of water.

Step-by-step explanation:

It is provided that:

Nia mixed 1 teaspoon salt with 3 cups warm water.
Trey mixes 1 /2 teaspoon salt with one and 1/2 cups warm water.

The ratio of the number of teaspoons of salt to the number of cups of water is 1 : 3 in Nia's solution.

On dividing the amount of salt and the amount of water by 3, the ratio will be the same.

$\text{Salt}: 1\div3=\frac{1}{3}\\\\\text{Water}:3\div3=1\\$

Thus 1 : 3 is equivalent to the ratio $\frac{1}{3}:1$ , which means that Nia's solution has $\frac{1}{3}$ teaspoon of salt for every cup of water.

The ratio of the number of teaspoons of salt to the number of cups of water is $\frac{1}{2}:1\frac{1}{2}$ in Trey’s solution.

On dividing the amount of salt and the amount of water by $1\frac{1}{2}$ , the ratio will be the same.

$\text{salt}:\frac{1}{2}\div 1\frac{1}{2}=\frac{1}{3}\\\\\text{Water}:1\frac{1}{2}\div1\frac{1}{2}=1$

So Trey’s ratio is also equal to the ratio $\frac{1}{3}:1$ .

Since each mixture has the same amount of salt for every 1 cup of water, they are equally salty and taste the same.

4 0

3 years ago

What is the slope of a line that goes through the points (1, -5) and (-3, 2)?

Gnom [1K]

Use the slope formula
y sub 2-y sub 1. all over
x sub 2-x sub 1.
so
2+5
-3-1
7/-4
aka -7/4

5 0

3 years ago

How do i answer this question ?

steposvetlana [31]

Answer:

v^3 (v-cubed)

Step-by-step explanation:

1. Cross multiply/cross out all common denominators

2. Then simplify and multiply

6 0

3 years ago

(Source: Aragon, Catherine A. and Samara Janleen D. Genova. Interactive Mathematics 8. Manila Innovative Educational Materials,

Mrac [35]

The GCF of numbers or expressions is the highest factor, common in both numbers or expressions.

The GCF of $24x^2y$ and $34x^2y$ is $2x^2y$

Given that:

$24x^2y$ and $34x^2y$

First, we expand both expressions

$24x^2y = 2 \times 2 \times 2 \times 3 \times x \times x \times y$

$34x^2y = 2 \times 17 \times x \times x \times y$

The GCF is the product of the common factors.

So, we have:

$GCF = 2 \times x \times x \times y$

$GCF = 2x^2y$

Hence, the GCF of $24x^2y$ and $34x^2y$ is $2x^2y$

Examples of GCF in the family is:

The skin color
The bone structure
The color of the hair
The heights

The above examples would be a GCF if all family members share the same trait.