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Serga [27]
3 years ago
7

Math! 10 points! 7th grade work! Please help :) 3-6

Mathematics
1 answer:
grandymaker [24]3 years ago
4 0
The answer to the question is -3
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Hey, sisters help me out so i can get this finished by Friday. Answer all please not just one not just two not just three, if yo
Kobotan [32]

Answer:

Step-by-step explanation:

First question 1 = 0.3 = 0.7

Second question 60/5=12 so 12 hours

Third question first find lcm so 6

2 3/6      and  7 2/6

2.5 + 2.5 = 5 so 2 cakes

Fourth question

729/14 um calculator but ok 729/14=52.07 so 52.1

You said you'd report me if i only did 3,2,or 11 but i did 4 so i think im fine

5 0
3 years ago
Simplify (2x + y)(x - 2y) - (x + 2y)(2x - y) as much as possible.
snow_tiger [21]

Answer:

-6xy

Step-by-step explanation:

(2x-y)x(x-2y)-(x+2y)X(2x-y)

remove the parentheses

2x^2-4xy+xy-2y^2-(2x^2-xy+4xy-2y^2)

collect terms

2x^2-4xy+xy-2y^2-(2x^2+3xy-2y^2)

remove the parentheses

2x^2-4xy+xy-2y^2-2x^2-3xy+2y^2

remove the opposites, collect the terms to get -6xy

4 0
3 years ago
An identification code is to consist of 3 letters followed by 3 digits. Determine the following
Free_Kalibri [48]

Answer:

3 letters can be arranged in 26*25*24 = 15600 ways

3 digits can be arranged in 10 * 9 * 8 = 720 ways

So the total number is 15600 * 720 = 11,232,000

So I agree with the number that you obtained

4 0
3 years ago
E D 1389 xo С 76.2° B А Find the value of x. O 38.1 O 30.9 69 O 61.8​
DanielleElmas [232]

Based on the intersecting secants theorem, the value of x is: B. 30.9°

<h3>What is the Intersecting Secants Theorem?</h3>

The intersecting secants theorem states that when two secants intersect, the measure of the angle they form is half the difference of the intercepted arcs.

Thus, based on the intersecting secants theorem, we would have the following:

x = 1/2(138 - 76.2)

x = 1/2(61.8)

x = 30.9°

Learn more about intersecting secants theorem on:

brainly.com/question/1626547

6 0
2 years ago
Help me please i don't know what this is ​
sesenic [268]

Answer:

15/4

Step-by-step explanation:

5 = 5/1

Then you just multiply across, 5*3=15 and 1*4=4 so you get 15/4.

7 0
3 years ago
Read 2 more answers
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