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3 years ago

You must reverse the inequality sign when solving this inequality: x + 7 < 4

1 answer:

6 0

True because to solve the problem you can do 4-7 and that is -3 and when there is a negative you must switch the inequality sign

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Two angles of a triangle are in the ratio of 2:3 if the third angle is 50 degree find the other two angles

Katarina [22]

Answer:

Step-by-step explanation

Two angles of a triangle are in the ratio of 2:3 if the third angle is 50 degree find the other two angles

the sum of the interior angles in a triangle is 180°

180 - 50 = 130°

130 : 5 = 26° (unit)

26 * 2 = 52°

26 * 3 = 78°

--------------

check

50 + 52 + 78 = 180°

------------

2 : 3 = 52 : 78
0.66666666666 = 0.66666666666

The answer is good

5 0

2 years ago

3. A research study asked children which of four different emotions they associated with the color red. The response and gender

user100 [1]

Answer:

This is required solution

Step-by-step explanation:

Given that:

for male

joy = 28

happiness = 20

love = 40

anger = 18

a] we need to calculate the percentage of emotions for the male

using formula for percentage

$\percentage\ of\ emotions=\dfrac{emotion}{total\ emotions}\times100$

percentage of joy = $\dfrac{28}{106}\times100$

percentage of joy = 26.41

percentage of happiness = $\dfrac{20}{106}\times100$

percentage of happiness = 18.86

percentage of love = $\dfrac{40}{106}\times100$

percentage of love = 37.73

percentage of anger = $\dfrac{18}{106}\times100$

percentage of anger = 16.98

for female

joy = 61

happiness = 25

love = 80

anger = 60

we need to calculate the percentage of emotions for the female

using formula for percentage

$\percentage\ of\ emotions=\dfrac{emotion}{total\ emotions}\times100$

percentage of joy = $\dfrac{61}{226}\times100$

percentage of joy = 26.99

percentage of happiness = $\dfrac{25}{226}\times100$

percentage of happiness = 11.06

percentage of love = $\dfrac{80}{226}\times100$

percentage of love = 35.39

percentage of anger = $\dfrac{60}{226}\times100$

percentage of anger = 26.54

B] We need to draw a bar graph for male and female

using percentage of emotion of male and female

according to using percentage we draw a bar graph using data of part A.

Hence, this is required solution

7 0

4 years ago

1. A/an _______ triangle has all three angles measuring less than 90°. A. right B. obtuse C. scalene D. acute

balandron [24]

The answer is D) or acute because it's the definition of an acute triangle.

8 0

3 years ago

Read 2 more answers

the area of sea horese is 108 cm every day it grows by 2% what will be the sea hores area after 2 days

Vitek1552 [10]

First find 2 percent of 108cm which is 2/100*108=2.16
So the sea hores grows 2.16cm every day. In 2 days, the hores will be 2*2.16=4.32cm

5 0

3 years ago

(write in algebraic expression) Ice cream shop is open within the month of june,july and august

ankoles [38]

The algebraic expression of the situation above is 4x - 100 = 400

<h3>How to form an algebraic expression?</h3>

Let

the amount of ice cream they serve in July = x + 100

the amount of ice cream they serve in June = x

They served twice as many customers in august as they did in June.

Therefore,

the amount of ice cream they serve in August = 2(x)

the amount of ice cream they serve in August = 2x

Therefore,

2x + x + x + 100 = 400

4x - 100 = 400

4x = 500

x = 500 / 4

x = 125

learn more on algebraic expression here:brainly.com/question/13223163

#SPJ1

3 0

2 years ago