All categories

3 years ago

What is 820 divided by 42

Mathematics

2 answers:

Dafna11 [192]3 years ago

3 0

The correct answer to 820/42= 19.52 (rounded answer would be 20). I hope I helped :)

fomenos3 years ago

3 0

Your answer is 19.5.. Hope this helps :)

You might be interested in

Which of the following expressions are factors of p(x)=60x4+24x3−45x2−18x?

Whitepunk [10]

The factors are 3x, 4x^2-3 and 5x+2

So, Option B, C and F are correct.

Step-by-step explanation:

We need to find factors of the expression $p(x)=60x^4+24x^3-45x^2-18x$

Solving the expression: $p(x)=60x^4+24x^3-45x^2-18x$

Taking 3x common:

$p(x)=3x(20x^3+8x^2-15x-6)$

Now, factor by grouping, the terms inside the bracket.

$p(x)=3x((20x^3+8x^2)+(-15x-6))$

$p(x)=3x(4x^2(5x+2)-3(5x+2))$

$p(x)=3x(4x^2-3)(5x+2)$

So, the factors are 3x, 4x^2-3 and 5x+2

So, Option B, C and F are correct.

Keywords: Finding Factors

Learn more about finding factors at:

#learnwithBrainly

5 0

3 years ago

Solve for x and then find the length of each segment. The measure of segment is equal to the sum of its smaller parts

leva [86]

Answer:

28hueu27ye6ry2u7wyee

8 0

3 years ago

Write the equation of the line in fully simplified slope-intercept form.

just olya [345]

Answer:

y= -7x-8

Step-by-step explanation:

The slope intercept form is y = mx + b.

First, find the slope. Use rise/run which gives you -7. <= negative bc its a negative slope.

Next, find the y intercept for b. It is -8.

Now, combine the numbers. y = -7x-8.

6 0

3 years ago

A recent study focused on the number of times men and women send a Twitter message in a day. The information is summarized below

jok3333 [9.3K]

Answer:

The value of the test statistic = 2.58

Test statistic Z = - 4.805

|Z| = 4.805 > 2.58

Null hypothesis is rejected The value of the test statistic = 2.58

There is significant difference between in the mean number of times men and women send a Twitter message in a day

Step-by-step explanation:

Step(i):-

Sample size of men n₁ = 25

mean of the first sample x₁⁻ = 20

Standard deviation of the first sample σ₁ = 5

Sample size of women n₂ = 30

mean of the second sample x₂⁻ = 30

Standard deviation of the first sample σ₂ = 10

Level of significance ∝= 0.01

<u>Step(ii)</u>:-

Null Hypothesis : H₀: There is no significant difference between in the mean number of times men and women send a Twitter message in a day

Alternative Hypothesis :H₁:There is significant difference between in the mean number of times men and women send a Twitter message in a day

Test statistic

$Z = \frac{x^{-} _{1} - x^{-} _{2} }{\sqrt{\frac{S.D_{1} ^{2} }{n_{1} }+\frac{ S.D_{2} ^{2}}{n_{2} } } }$

$Z = \frac{20 - 30 }{\sqrt{\frac{(5)^{2} }{25 }+\frac{ (10)^{2} }{ 30} } }$

Z = $\frac{-10}{2.081} = - 4.805$

The value of the test statistic = 2.58 C

|Z| = 4.805 > 2.58

Null hypothesis is rejected The value of the test statistic = 2.58

<u>Conclusion:</u>-

There is significant difference between in the mean number of times men and women send a Twitter message in a day

7 0

3 years ago

Pls Solve This! I'll give Brainilest and points! :D

Kruka [31]

Answer:

(8,3)

Step-by-step explanation:

because its ON the line and the line is dotted. if the line was solid it would be a solution but it is not because the line is dotted

4 0

3 years ago