All categories

4 years ago

Help me please!!! If you can tell me the answers it will help a lot! Thanks

Mathematics

1 answer:

wel4 years ago

8 0

5) 3.429
6) 12
7)3
8)256

You might be interested in

Brittney has 2 and 3/4 yards of fabric. She wants to make wreaths that require 1/8 yards. What is the maximum number of wreaths

vlabodo [156]

Answer: 22

Step-by-step explanation:

Given

Brittney has 2 and $\frac{3}{4}$ yards of fabric

Converting it to a fraction

$\Rightarrow 2\ \dfrac{3}{4}=\dfrac{8+3}{4}\\\\\Rightarrow \dfrac{11}{4}$

Wreath require $\frac{1}{8}$ yards

Number of wreaths that can be made

$\Rightarrow n=\dfrac{\frac{11}{4}}{\frac{1}{8}}\\\\\Rightarrow n=\dfrac{11}{4}\times \dfrac{8}{1}\\\\\Rightarrow n=22$

She can make 22 wreaths

6 0

3 years ago

An object is moving at a speed of 3 yards per month. Express this speed in centimeters per day. Round your answer to the nearest

iragen [17]

Answer:

Step-by-step explanation:

91.44 cm/d (centimeter per day)

6 0

3 years ago

In which quadrant is csc 0 <0 and cos e > 0?

Temka [501]

Answer:

Step-by-step explanation:

6 0

3 years ago

Please help ASAP 12 points

Roman55 [17]

Answer:

they are opposites

Step-by-step explanation:

7 0

4 years ago

A sample of 2,500 people was asked how many cups of coffee they drink in the morning. You are given the following sample informa

Misha Larkins [42]

Answer: V(X) = 0.96

Step-by-step explanation: <u>Variance</u> is defined as the average of the squared difference from the sample or population mean.

For a discrete frequency distribution is calculated following the steps:

1) Determine expected value or mean:

$E(X)=\frac{\Sigma xf}{\Sigma f}$

$E(X)=\frac{0(700)+1(900)+2(600)+3(300)}{2500}$

E(X) = 1.2

2) Multiply frequency and the squared difference of x and expected value:

$f(x-E(X))^{2}$

$700(0-1.2)^{2}=1008\\900(1-1.2)^{2} = 36\\600(2-1.2)^{2} = 384\\300(3-1.2)^{2} = 972$

3) Add them:

$\Sigma [f(x-E(X))^{2}]$ = 1008 + 36 + 384 + 972 = 2400

4) Divide the sum per frequency total:

$V(X)=\frac{\Sigma [f(x-E(X))^{2}]}{\Sigma f}$

$V(X)=\frac{2400}{2500}$

V(X) = 0.96

The variance of the number of cups of coffee is <u>0.96</u>.

7 0

3 years ago