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Llana [10]
3 years ago
10

Find the mean of this set of numbers. 7, –9, 6, –10, –13, –5

Mathematics
1 answer:
ivann1987 [24]3 years ago
5 0
7+(-9)+6+(-10)+(-13)+(-5)=
7-9+6-10-13-5=
-24

mean is the sum of all the numbers divided by the total number of numbers within the data.

-24÷6=-4

The mean is -4.
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Adam earns $36 for every four hours of work. If he continues to be paid at the same rate. How long will it take him to earn $225
prisoha [69]

Answer:

It will take him 6.25 hours to earn $225

Step-by-step explanation:

225 ÷ 36 = 6.25

6.25 = 6 1/4

You are dividing the total amount of money needed to be earned ($225) by the amount of money he gets paid every hour ($36) to get the number of hours it will take him to earn the amount of money he wants to earn.

Hope this helps!

5 0
2 years ago
Read 2 more answers
A photo of a beetle in a science book is increased to 705​% as large as the actual size. If the beetle is 14 ​millimeters, what
uranmaximum [27]

Answer:

11.27cm

Step-by-step explanation:

705% of 14milimeters

705/100 X 14 = 98.7

increase by adding 98.7milimeter to 14milimeter

98.7+14= 112.7milimeter or 11.27cm

3 0
3 years ago
What is the product of −2/5 and −0.8? Select all that apply.
stepan [7]

Answer:

0.32

Step-by-step explanation:

You can convert -2/5 to -0.4. Then multiply them together to get 0.32. Remember that multiplying two negatives makes a positive. Hope this helps :)

7 0
2 years ago
Read 2 more answers
What are the postulates for congruent triangles
Delvig [45]

Hi there!

There are 5 ways to find if two triangles are congruent :

SSS, SAS, ASA, AAS & HL

<u>1. SSS (Side, Side, Side)</u>

Means that we have two triangles with 3 sides equal.

⇒ If 3 sides of one triangle are equal to 3 sides of another triangle, the triangles are congruent.

<u>2. SAS (Side, Angle, Side)</u>

Means that we have two triangles where we know 2 sides and the included angle are equal.

⇒ If 2 sides and the includent angle of one triangle are equal to the corresponding sides and angle of another triangle, the triangles are congruent.

<u>3. ASA (Angle, Side, Angle)</u>

Means that we have two triangles where we know 2 angles and the included side are equal.

⇒ If 2 angles and the included side of one triangle are equal to the corresponding angles and side of another triangle, the triangles are congruent.

<u>4. AAS (Angle, Angle, Side)</u>

Means thant we have two triangles where we know 2 angles and the non-included side are equal.

⇒ If 2 angles and the non-included side of one triangle are equal to the coresponding angles and side of another triangle, the triangles are congruent.

<u>5. HL (Hypotenuse, leg)</u>

** This one only applies to <em><u>right-angled triangles</u></em>.**

Hypotenuse: The longest side of a right-angled triangle.

Legs: The other 2 sides of the right-angled triangle.

Means we have two right-angled triangles with the same length of hypotenuse and the same length for one of the other 2 legs (it doesn't matter which leg since the triangles could be rotated).

⇒ If the hypotenuse and one leg of one right-angled triangles are equal to the corresponding hypotenuse and leg of another right-angled triangles, the two triangles are congruent.


There you go! I really hope this helped, if there's anything just let me know! :)

7 0
3 years ago
Select THREE expressions equivalent to –81x + 27.
Ivahew [28]

Answer:

A, C, and D

Step-by-step explanation:

5 0
2 years ago
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