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sdas [7]
3 years ago
14

?÷(−7)=(−4) what is the missing number

Mathematics
2 answers:
Degger [83]3 years ago
7 0

Answer:

? = 28

Step-by-step explanation:

Isolate the ?. Let "?" = x

x/(-7) = (-4)

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Multiply -7 to both sides:

(x/-7)(-7) = (-4)(-7)

x = -4 * -7

Simplify. Note that when you are multiplying or dividing two negative numbers, you will have a positive answer:

x = -4 * -7 = 4 * 7 = 28

28 is your answer.

~

Hunter-Best [27]3 years ago
3 0

Answer:

The answer is 28.

Step-by-step explanation:

To find the solution, you must multiply the other two numbers together to find the original number that is divided.

-7 * -4 = 28 Answer

28/-7 = -4

Hope this helps!

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Sq is an angle bisector m <qst=2x and m <qsr=3x-10 what is <rst
defon
Answer:
∠RST = 40°

Explanation:
We are given that:
SQ bisects angle RST.
This means that:
∠QST = ∠QSR
2x = 3x - 10
10 = 3x - 2x
x = 10

Therefore:
∠QST = 2x = 2(10) = 20°
∠QSR = 3x - 10 = 3(10) - 10 = 30 - 10 = 20°
Note that both angles are equal.

Now, we can get ∠RST as follows:
∠RST = ∠QST + ∠QSR
∠RST = 20 + 20 = 40°

Hope this helps :)
6 0
3 years ago
Please help me!
Alexxandr [17]

A right triangle has one leg with unknown length, the other leg with length of 5 m, and the hypotenuse with length 13 times sqrt 5 m.

We can use the Pythagorean formula to find the other leg of the right triangle.

a²+b²=c²

Where a and b are the legs of the triangle and c is the hypotenuse.

According to the given problem,

one leg: a= 5m and hypotenuse: c=13√5 m.

So, we can plug in these values in the above equation to get the value of unknown side:b. Hence,

5²+b²=(13√5)²

25 + b² = 13²*(√5)²

25 + b² = 169* 5

25+ b² = 845

25 + b² - 25 = 845 - 25

b² = 820

b =√ 820

b = √(4*205)

b = √4 *√205

b = 2√205

b= 2* 14.32

b = 28.64

So, b= 28.6 (Rounded to one decimal place)

Hence, the exact length of the unknown leg is 2√205m or 28.6 m (approximately).

5 0
3 years ago
Find the perimeter of a square watermelon farm whose side is 14 miles.
Harlamova29_29 [7]
Perimeter is adding all the sides.
 since it is square it is 14 +14 +14 +14 = 56 miles
8 0
3 years ago
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A rental car agency charges $240 per week plus 0.25 per miles to my car how many miles can you travel in one week for 432.50​
nataly862011 [7]
432.5-240= 192.50

192.50/.25=770miles
3 0
2 years ago
Question in pictures
vredina [299]
70 kilometers because you have to multiply 3.5 by 20.
3 0
3 years ago
Read 2 more answers
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