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3 years ago

(-5 If m + 7 = 39, what is the value of m?

Mathematics

1 answer:

diamong [38]3 years ago

6 0

Answer:

m=32

Step-by-step explanation:

solve for m by subtracting 7 by both sides. Then you get m = 32

(can i get brainliest please)

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3 years ago

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Please help me find the value of x

Aleonysh [2.5K]

Answer:

Step-by-step explanation:

$(tangent)^{2}$ = AC × CB

$12^{2}$ = ( x + 9 ) 9

144 = 9x + 81

9x = 144 - 81

9x = 63

x = 63 ÷ 9

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3 years ago

Which of the following is the equation of a circle with a radius of 10 cm and center at (–3, 6)?

Volgvan

The equation of the circle:

$(x-h)^2+(y-k)^2=r^2$

(h, k) - center

r - radius

We have:

$r=10\\(-3,\ 6)\to h=-3,\ k=6$

Substitute:

$(x-(-3))^2+(y-6)^2=10^2\\\\(x+3)^2+(y-6)^2=100$

4 0

3 years ago

Given the sequence 7, 12, 17, 22, ...

abruzzese [7]

Answer:

option D is true.

Step-by-step explanation:

Given the sequence

7, 12, 17, 22, ...

An arithmetic sequence has a constant difference 'd' and is defined by

$a_n=a_1+\left(n-1\right)d$

Computing the differences of all the adjacent terms

$12-7=5,\:\quad \:17-12=5,\:\quad \:22-17=5$

The difference between all the adjacent terms is the same

$d=5$

$a_1=7$

Thus, the nth term of the arithmetic sequence will be:

$a_n=5\left(n-1\right)+7$

$a_n=5n+2$

Therefore, option D is true.

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3 years ago

Michael has 1.85 in dimes and nickels.He has a total of 25 coins.how many of each does he have

creativ13 [48]

D+n=25 subtract d from both sides *(if your wondering what d and n are it stands for Dimes and Nickels)* n=25-d
0.10d+0.05= 1.85
0.10d+0.05(25-d)= 1.85
0.10d+1.25-0.05d= 1.85
0.05d = 0.60
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
My answer: He has 12 dimes (d=12) and 25-12=13 so 13 nickels.. Hope this helps! :)

5 0

3 years ago