All categories

2 years ago

Plz help me I really need it ASAP

Mathematics

2 answers:

vekshin12 years ago

8 0

Answer:

$32$

Step-by-step explanation:

$\frac{4ab}{8c}$

$\frac{4(8)(4)}{8(\frac{1}{2})}$

$\frac{4(32)}{4}$

$32$

gregori [183]2 years ago

3 0

Answer: 32

Step-by-step explanation:

Apply pemdas

parentheses

Exponents

Multiplication-Division Addition-Subtraction

You might be interested in

When the expression 3(n + 7) is evaluated for a given value of n, the result is 33. What is

trapecia [35]

Answer:4

Step-by-step explanation:What +7=11 bause the () make a multiplication and 11x3=33

4 0

3 years ago

Read 2 more answers

The lengths of bolts in a batch are distributed normally with a mean of 3 cm and a standard

ValentinkaMS [17]

Answer:

0.8413 = 84.13% probability that a bolt has a length greater than 2.96 cm.

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.

Mean of 3 cm and a standard deviation of 0.04 cm.

This means that $\mu = 3, \sigma = 0.04$

What is the probability that a bolt has a length greater than 2.96 cm?

This is 1 subtracted by the p-value of Z when X = 2.96. So

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

$Z = \frac{2.96 - 3}{0.04}$

$Z = -1$

$Z = -1$ has a p-value of 0.1587.

1 - 0.1587 = 0.8413

0.8413 = 84.13% probability that a bolt has a length greater than 2.96 cm.

3 0

2 years ago

Round 0.687 yo the nearest tenths place

Vaselesa [24]

Answer: 0.7

Locate the tenths place which is just to the right of the decimal point. We see a 6 in this spot. Just to the right of this 6 is the value 8. Since 8 is larger than 5, we bump the 6 up to 7 and erase everything else to the right. You can think of it like this

0.687 ---> 0.6 which bumps up to 0.7

This is like saying 687 is closer to 700 than it is to 600

4 0

3 years ago

Consider the following system of equations: 10 + y = 5x + x2 5x + y = 1 The first equation is an equation of a . The second equa

aleksley [76]

Answer: The first equation is an equation of a parabola. The second equation is an equation of a line.

Explanation:

The first equation is,

$10+y=5x+x^2$

In this equation the degree of y is 1 and the degree of x is 2. The degree of both variables are not same. Since the coefficients of y and higher degree of x is positive, therefore it is a graph of an upward parabola.

The second equation is,

$5x+y=1$

In this equation the degree of x is 1 and the degree of y is 1. The degree of both variables are same. Since both variables have same degree which is 1, therefore it is linear equation and it forms a line.

Therefore, the first equation is an equation of a parabola. The second equation is an equation of a line.

5 0

3 years ago

Read 2 more answers

Please send me answer. tomorrow is my exam.

masha68 [24]

Answer:

The table is attached below and ogive also.

Step-by-step explanation:

Given

The following distribution is given below

First we find the cumulative frequency.

And then we convert it into a less than type ogive.

find the cumulative frequency shown below clearly

And convert it into less than type of cumulative frequency distribution is also done in next table, the daily income is less than daily income upper limit.

In this graph x-axis is daily income and y-axis is number of workers

6 0

3 years ago