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Tanzania [10]
3 years ago
5

4-(x+2)<-3(x+4) A. X<-7 B. X>-7 C. X<-9 D. X>-9

Mathematics
1 answer:
MaRussiya [10]3 years ago
5 0
4 - (x + 2) < -3(x + 4)
4 - x - 2 < -3(x) - 3(4)
4 - x - 2 < -3x - 12
-x + 2 < -3x - 12
2x + 2 < -12
2x < -14
x < -7

The answer is A.
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How many integers between 100 and 400 contain the digit 2?
Semenov [28]
102, 112, 120-129, 132, 142, 152, 162, 172, 182, 192, 200-299, 302, 312, 320-329, 332, 342, 352, 362, 372, 382, 392
2+10+7+100+2+10+7
138 integers.
8 0
3 years ago
Can somebody plz help answer the number 10’s questions using the diagram from the bottom left side (only if u know how to do thi
Lana71 [14]

Answer:

10a: △ABC is an Equilateral triangle with all acute angles.

10b: △BCD is A scalene triangle with all acute angles.

10c: △BDE is An Isosceles triangle with one obtuse angle.

Step-by-step explanation:

10) Looking at the diagram at the bottom left;

- △ABC has 3 equal internal angles and as such, it means it will have 3 equal angles.

Thus, we can classify it as; Equilateral triangle with all acute angles.

- △BCD has 3 unequal angles. Thus, it's 3 sides are not equal. Also all the angles are less than 90°.

We can classify it as;

A scalene triangle with all acute angles

- △BDE has 2 equal angles and one angle greater than 90°. This means it has 2 equal sides.

Thus, we can classify it as;

- An Isosceles triangle with one obtuse angle.

8 0
2 years ago
Jorge finds that 56% of his 75 classmates like salsa music and 80% of his 60 relatives like salsa music how many more of Jorge’s
Natasha_Volkova [10]
<span>To solve this problem you must apply the proccedure shown below:
 1. You have the following information given in the problem above:
 - There are 75 classmates.
 - 56% of his 75 classmates like salsa music and 80% of his 60 relatives like salsa music.
 2. Therefore, you have:
 - Number of his classmates that likes salsa music:
 75x0.56=42 
 - Number of his r</span>elatives that like salsa music:
 60x0.80=48
 3. Then you have:
 48-42=6
 Therefore, the answer is: 6.
8 0
2 years ago
Scale Drawings question
Nimfa-mama [501]

Answer:

138 is the answer

Step-by-step explanation:

In order to find the perimeter, we use this formula

P=2(l+w)

And to find the width, we use this formula

w = P/2 - L = 18/2 - 3 = 6

So the width is 6

3 × 6 = 18

So thats why the perimeter of the top triangle is 18

We do 21 ÷ 3 = 7, 7 = scale factor

To find the perimeter of the bottom triangle, we do

the width of the top rectangle times 7

so 6 × 7 = 48

So the perimeter for the bottom triangle is

P=2(l+w)=2·(48+21)=138

6 0
2 years ago
What is the equation of this line?<br>y = -4×<br>y = 4×<br>y = - 1/4×<br>y = 1/4×​
sashaice [31]
The answer is the third choice: y=-1/4x.

We find this by remembering that slop is rise over run. Since the rise is -1 and the run is for we can make it -1/4 as the slope, which is next to the x term. Since the y intercept is at the origin we do not have a b term from the formula y=Mx+b.
3 0
2 years ago
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