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denpristay [2]
4 years ago
8

(f+g)(4)I really don't know what to do?? or how to start ??

Mathematics
1 answer:
olganol [36]4 years ago
8 0

(f+g)(x)=x^2-2x+2+1-3x=x^2-5x+3\\\\ (f+g)(4)=4^2-5\cdot4+3=16-20+3=-1

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If a=8 and b=5 and x=4 and y=6m -2 what is the value of m ?
Serga [27]

Answer:

m = 2

Step-by-step explanation:

Given:

x = 4

y = 6m - 2

a = 8

b = 5

Required:

Value of m

SOLUTION:

x and y are segments of a chord divided when it intersects another chord that also has segments a and b.

According to the Intersecting chords theorem, a*b = x*y

Thus:

8*5 = 4*(6m - 2)

Solve for m

40 = 24m - 8

40 + 8 = 24m - 8 + 8

48 = 24m

\frac{48}{24} = \frac{24m}{24}

2 = m

The value of m = 2

3 0
3 years ago
There were a total of 42 students in Mr.Welk's class. The ratio of boys to girls was 3:4. How many of his students were boys and
dlinn [17]
18 were boys 24 were girls.
4 0
3 years ago
The ratio of boys to girls in the ninth grade is 6:5. If there are 185 girls in the class, how many boys are there?
xeze [42]

Answer:

222 boys

Step-by-step explanation:

Let x = total number of ninth graders. By knowing how many students there are in the grade, we can find for the number of boys.

\frac{5}{6+5}x = 185 (number of girls in ninth grade)

\frac{5}{11}x = 185

x=407

To find for the number of boys, we can use substitution:

\frac{6}{6+5}x = \frac{6}{11}(407)

=222

∴ There are 222 boys in the class.

Hope this helps :)

8 0
3 years ago
Read 2 more answers
What is the answer to 2+4×7
PIT_PIT [208]
2+4×7=
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5 0
4 years ago
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Which is a parallelogram but not a rectangle?
Alinara [238K]
I’m pretty sure that your answer is the last one
4 0
3 years ago
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