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Novay_Z [31]
2 years ago
6

Solve the equation.

Mathematics
1 answer:
Gelneren [198K]2 years ago
5 0

Answer:

x=-5/4 or x=9/4

Step-by-step explanation:

2 - 4x = -7

-4x = -7 - 2

-4x = -9

x = 9/4

or

2 - 4x = 7

-4x = 7-2

-4x = 5

x = -5/4

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Solve the x to the nearest tenth​
Nezavi [6.7K]

Answer:

x=11.2

Step-by-step explanation:

So, to solve for x you have to use pythag Theorem. X is the hypotenuse  

If you separate this shape into two parts, splitting the slant portion and the rectangle part. You will have a right triangle, and then you would find all the legs of the triangle.

The shorter leg, which is on the left side. Since the left side including the slanted part is 13 and we had to split the shape the shorter leg would equal 5

13-8=5.

And since the longer leg has the same length as the rectangle, which is 10. You would take both these numbers.

then, Square them and add them. So, 5x5=25

and 10x10=100

100+25=125 afterwards you find the square root. \sqrt{125}=11.18

7 0
3 years ago
The sum of the arithmetic progression 4, ..., 76 is 1920. Find the number of terms and the common difference.​
valkas [14]

<u>Number of terms = 48</u>

<u>common difference = 1.5</u>

This question involves the concept of Arithmetic Progression.

  • The formula for sum of an arithmetic progression series with first and last term given is;

S_{n} = \frac{n}{2}(a + l)

where;

a = first term

l = last term

n = number of terms

  • From the given sequence, we see that;

first term; a = 4

last term; l = 76

Sum of A.P; S_{n} = 1920

  • Plugging in relevant values into the sum of an AP formula, we have;

1920 = \frac{n}{2}(4 + 76)

simplifying this gives;

1920 = 40n

n = 1920/40

n = 48

  • Formula for nth term of an AP is;

t_{n} = a_{1} + (n - 1)d

where;

a_{1} is first term

d is common difference

n is number of term

t_{n} is the nth term in question

the 48th term is 76

Thus;

76 = 4 + (48 - 1)d

76 - 4 = 47d

72 = 47d

d = 72/47

d ≈ 1.5

Thus;

Number of terms = 48

common difference = 1.5

Read more at; brainly.com/question/16935540

4 0
3 years ago
It takes 56 pounds of seed to completely plant a 7-acre field.
Xelga [282]

Answer:

there are 8 acres that can be planted

6 0
3 years ago
ABCD is rectangle. Find the length of each diagonal <br> AC=c/3 <br> BD=4-c
Vikki [24]
The lenght of each diagonals is 1.
3 0
3 years ago
Read 2 more answers
Little Bo Peep needs to buy 10 new sheep.
77julia77 [94]

Answer:

200$

Step-by-step explanation:

10 TIMES 20 IS 200

6 0
3 years ago
Read 2 more answers
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