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3 years ago

Simplify.

Mathematics

2 answers:

Semmy [17]3 years ago

7 0

The answer will be D 15m+2n

grigory [225]3 years ago

7 0

First one is 15m+2n, you have to add (or subtract) all the same familys

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Find the value of x. 48° (7x + 13) A. 7 B. 3 C. 11 о D. 5

Agata [3.3K]

Answer:

Step-by-step explanation:

The given angles are vertically opposite and congruent , then

7x + 13 = 48 ( subtract 13 from both sides )

7x = 35 ( divide both sides by 7 )

x = 5 → D

7 0

3 years ago

The probability distribution for a

Tpy6a [65]

Answer:

$P(x \le -3) =0.30$

Step-by-step explanation:

Given

The attached probability distribution of x

Required

Find $P(x \le -3)$

To do this, we consider all values of x less than or equal to-3.

So, we have:

$P(x \le -3) =P(x=-5) + P(x = -3)$

From the table:

$P(x=-5) = 0.17$

$P(x = -3) = 0.13$

So, the equation becomes

$P(x \le -3) =P(x=-5) + P(x = -3)$

$P(x \le -3) =0.17 + 0.13$

$P(x \le -3) =0.30$

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3 years ago

What is the value of n! 9×27+2×31-28=n

yKpoI14uk [10]

(9×27)+(2×31)-28 = 27

4 0

3 years ago

10) Find the measure of angle D. Hint: you must do two math problems to solve

NISA [10]

Answer:

Option A.) 43°

Step-by-step explanation:

Part 10)

step 1

Find the length of side EG

see the attached figure to better understand the problem

we know that

In the right triangle EGF

$cos(65^o)=\frac{EG}{EF}$ ----> by CAH (adjacent side divided by the hypotenuse)

substitute the given values

$cos(65^o)=\frac{EG}{11}$

solve for EG

$EG=(11)cos(65^o)\\EG=4.65\ cm$

step 2

Find the measure of angle D

In the right triangle DEG

$tan(D)=\frac{EG}{DG}$ ----> by TOA (opposite side divided by adjacent side)

substitute the given values

$tan(D)=\frac{4.65}{5}\\\\D=tan^{-1}(\frac{4.65}{5})=43^o$

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3 years ago

Least common multiple of 70.60.and 50

Wittaler [7]

L.C.M. of 70,60,and 50=2×2×3×5×5×7=2100

5 0

4 years ago