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3 years ago

Solve the question and check the solution. Express numbers as integers or simplified fractions. 5(m+5)=7m+9

Mathematics

1 answer:

Yanka [14]3 years ago

7 0

Answer:

m = 8

Step-by-step explanation:

5(m+5)=7m+9 (distribute & evaluate parenthesis)

5(m)+5(5)=7m+9

5m + 25 = 7m + 9 (move all m-terms to one side and constants to the other)

5m - 7m = 9 - 25 (evaluate both sides)

-2m = -16 (divide both sides by -2)

m = (-16) / ( -2) = 8

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In the triangle below, 4/5 represents which ratio?

ASHA 777 [7]

Answer:
sin (C)

Explanation:
In a right-angled triangle, special trig functions can be applied. These functions are as follows:
sin (theta) = $\frac{opposite}{hypotenuse}$

cos (theta) = $\frac{adjacent}{hypotenuse}$

tan (theta) = $\frac{opposite}{adjacent}$ 

Now, let's check the triangle we have:
We have two options:
First option:
5 is the hypotenuse of the triangle
4 is the side adjacent to angle B
Therefore, we can apply the cos function:
cos (B) = $\frac{4}{5}$ 

Second option:
5 is the hypotenuse of the triangle
4 is the side opposite to angle C
Therefore, we can apply the sin function:
sin (C) = $\frac{4}{5}$

Among the two options, the second one is the one found in the choices. Therefore, it will be the correct one.

Hope this helps :)

8 0

3 years ago

Read 2 more answers

Please help 40 points

Natasha2012 [34]

Answer:

-2 5/9

Step-by-step explanation:

w + (-x) - 2/3

Let w = -5/9 and x = 4/3

-5/9 - 4/3 - 2/3

Get a common denominator

-5/9 -4/3*3/3 -2/3*3/3

-5/9 -12/9 -6/9

Add

-23/9

Change to a mixed number

-2 5/9

4 0

3 years ago

A baseball infield is a square, each side measuring 90 feet. To the nearest foot, what is the distance from home plate to second

suter [353]

Using the Pythagorean theorem:

90^2 +90^2 = X^2

8100 + 8100 = x^2

16,200 = x^2

X = √16,200

X = 127.28 feet.

Rounded to the nearest foot = 127 feet.

3 0

3 years ago

Please help me! (this is from khan academy 6th grade math!)

Svetach [21]

Answer:

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3rd → 2nd

Step-by-step explanation:

just divide the first set of student wishes to the second set of students in the same question. the 1st for example

x-ray to all students is 6/ 36= 1/6 = 1:6

for all students, you add all the students in the table

8 0

1 year ago

How do i cancel a subsciption

larisa [96]

Answer:

im not sure rlly but maybe email them and ask how, or theres that little question mark thing in the right corner so maybe that can answer it. i havent been on here for long but i hope i helped a lil :)

Step-by-step explanation:

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2 years ago