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Lina20 [59]
3 years ago
5

If f of x equals 5x-7 what is the solution to f(x)=4

Mathematics
1 answer:
Setler [38]3 years ago
5 0

Answer:

the answer is 13

Step-by-step explanation:

do u need the explanation?

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What is the error in this problem
castortr0y [4]

Answer:

12). LM = 37.1 units

13). c = 4.6 mi

Step-by-step explanation:

12). LM² = 23² + 20² - 2(23)(20)cos(119)°

    LM² = 529 + 400 - 920cos(119)°

    LM² = 929 - 920cos(119)°

    LM = \sqrt{929+446.03}

          = \sqrt{1375.03}

          = 37.08

          ≈ 37.1 units

13). c² = 5.4² + 3.6² - 2(5.4)(3.6)cos(58)°

    c² = 29.16 + 12.96 - 38.88cos(58)°

    c² = 42.12 - 38.88cos(58)°

    c = \sqrt{42.12-20.603}

    c = \sqrt{21.517}

    c = 4.6386

    c ≈ 4.6 mi

3 0
3 years ago
How to factor 15m^2-12m^3
tester [92]
Step 1. Find the Greatest Common Factor (GCF)
GCF = 3m^2
Step 2. Factor out the GCF <span>(Write the GCF first. Then, in parentheses, divide each term by the GCF.)
3m^2(15m^2/3m^2 + -12m^3/3m^2)
Step 3. Simplify each term in parentheses 
3m^2(5 - 4m)</span>
8 0
4 years ago
Read 2 more answers
Josh is 3 inches taller than his brother <br> translate the following to mathematical expressions
viktelen [127]

Answer:

J=b+3

Step-by-step explanation:

8 0
4 years ago
The perimeter of a rectangular field is 354 yards. If the width of the field is 82 yards, what is its length?
nadya68 [22]
2w + 2l = 354  where w = width and l = length 
so we have
2*82 + 2l = 354
2l = 254 - 2*82 =  190
l = 95

length is 95 yards

3 0
3 years ago
Read 2 more answers
Which of the following equations are identities? Check all that apply.
11111nata11111 [884]

Answer:

B. CSCX=  sinx  / 1

D. tanx= sin x  / COS x

Step-by-step explanation:

A. sec x=  1/cos(x)

CSC X  / 1 = sin(x)

B. CSCX

sinx  / 1  = csc(x)

C. tanx=   sin(x) / cos(x)

secx  = 1 / cos(x)

D. tanx=  sin(x) / cos (x)

sin (x)  / cos(x)

4 0
4 years ago
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