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2 years ago

Can I please get some help with this :D

Mathematics

1 answer:

Luba_88 [7]2 years ago

6 0

1. Anwser=53.3 (do 40*3 then anwser x 4)
2anwser=120

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(2m² + 6m) + (m² – 5m +7) <br>а. Зm² + m <br>b. Зm² - m +7 <br>с. m² + 11m - 7 <br>d. 3m² + m +7

grigory [225]

The answer is D. 3m^2 + m + 7 !!

4 0

3 years ago

Read 2 more answers

An ice cream cone has a diameter of 7 cm and a height of 13 cm. How many milliliters of melted ice cream can it hold? (1 cm3 hol

allsm [11]

This question is asking for the volume of the cone.
The formula is 1/3π r²h where r is radius and h is height.
First we must find the radius by dividing the diameter in half, giving us 3.5
Now we plug our values into the formula like this:

1/3 π r²h
1/3 π3.5² 13

This gives us the answer of 166.76mL or 166.8mL depending on how you want to round it.

Hope this helps :)

6 0

3 years ago

Did I use the right equations to find x?

EleoNora [17]

Answer:

first one yes

Step-by-step explanation:

second one its

39x+10=180

4 0

2 years ago

Read 2 more answers

1. Write an addition equation, a subtraction equation, and a multiplication equation that has -2 as a solution. Solve each equat

Sphinxa [80]

5 + -7 = -2
5 - 7 = -2
-1 x 2 = -2

7 0

3 years ago

If you have 66 data observations in a sample, how many classes (bins) does the sturges' rule recommend for you to construct a fr

Iteru [2.4K]

According to Sturge's rule, number of classes or bins recommended to construct a frequency distribution is k ≈ 7

Sturge's Rule: There are no hard and fast guidelines for the size of a class interval or bin when building a frequency distribution table. However, Sturge's rule offers advice on how many intervals one can make if one is genuinely unable to choose a class width. Sturge's rule advises that the class interval number be for a set of n observations.

Given,

n = 66

We know that,

According to Sturge's rule, the optimal number of class intervals can be determined by using the equation:

$k=1+log_{2} n$

Here, n is equal to 66 and by substituting the value to the equation we get:

$k=1+log_{2} (66)$

k = 7.0444

k ≈ 7

Learn more about Sturge's rule here: brainly.com/question/28184369

#SPJ4

8 0

1 year ago