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3 years ago

Need full answer explaining please

Mathematics

2 answers:

Lesechka [4]3 years ago

6 0

Angle y making a line with 80° and 60° it means their sum should be =180°
80°+60°+y=180°
y=40° so x=40° because they are vertical angels and vertical angels are equal

Gnesinka [82]3 years ago

5 0

A straight angle is equal to 180 degrees. 180-80=100. 100-60=40. so y=40. vertical angles are congruent so x=40 degrees.

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Billy wanted to write a ratio of the number of apples to the number of peppers in his refrigerator. He wrote 1:3. Did bully writ

Ludmilka [50]

Answer:

Billy is incorrect. The ratio of the number of apples to the number of peppers is 3:1

Step-by-step explanation:

See the attached figure to better understand the problem

Let

x ----> the number of apples

y ----> the number of peppers

we have

$x=3\ apples$

$y=1\ peppers$

The ratio of the number of apples to the number of peppers is equal to

$\frac{x}{y}$

substitute

$\frac{3}{1}$

therefore

Billy is incorrect. The ratio of the number of apples to the number of peppers is 3:1

5 0

3 years ago

Read 2 more answers

Please help and show steps 0.4÷0.8

Sergio [31]

4 multiplied my 2 is 8

So 0.4 divided by 0.8 is 0.2

3 0

2 years ago

If all sides of a cube are multiplied by 6, by what factor does the volume increase?

adelina 88 [10]

$\large V=a^3 \\ \\V_{1}=(6a)^3 =6^3*a^3=256a^3\\ \\\frac{V_{1}}{V}=\frac{256 \not a^3^1}{\not a^3^1}= 256\\ \\Answer : \ increase \ the \ volume \ of \ a \ cube \ 256 \ times$

7 0

3 years ago

PLEASE HELP ITS FOR A MAJOR TEST

GuDViN [60]

Answer:

Step-by-step explanation:

the sum of those two interior angles is equal to the exterior (116), so y = 15 and the measure of angle A is 57 if you plug it in

6 0

2 years ago

Read 2 more answers

The time spent waiting in the line is approximately normally distributed. The mean waiting time is 6 minutes and the variance of

asambeis [7]

Answer:

0.1587 = 15.87% probability that a person will wait for more than 9 minutes.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

The mean waiting time is 6 minutes and the variance of the waiting time is 9.

This means that $\mu = 6, \sigma = \sqrt{9} = 3$