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mixer [17]
2 years ago
6

I had 13 dollars. My mom gave me 10 dollars. My dad gave me 30 dollars. My Aunt, My Uncle, and Grandma gave me 100 dollars. I ha

d another 7 dollars. How much did I have?
Mathematics
2 answers:
vekshin12 years ago
7 0

Answer:

370

13+10+30+100+100+100+7=370

posledela2 years ago
5 0
13+10+30+100+7=160 dollars
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Find the angle measure indicated to the nearest tenth:
makvit [3.9K]

Step-by-step explanation:

Sin<D = Opposite / Hypotenuse

Opposite - EC

Hyp - DE

Sin<D = EC/DE = x/9

we need x to find <D.

so -->Use pythagorean theorem.

DE^2 = EC^2 + DC^2

DE = 9 DC = 7 EC = ?

EC^2 = DE^2 - DC^2 rearranged.

= 9^2 - 7^2

= 81 - 49

EC^2 = 32 Put both sides under square root.

√(EC^2) = √32

EC = 4√2 ~ 5.65.

We now have X which was representing the unknown side EC.

Sin<D = EC/DE = 5.65/9 = 0.627

To find <D Take the sine inverse of of 0.627.

<D = Arcsin(0.627) = 38.82°.

We now know <D. It's <E's turn.

A right angle triangle has a summation of interior angles of 180°.

thus, <em><D + <C + <E = 180°</em>

38.82° + 90° + <E = 180°

128.82° + <E = 180°

subtract both sides by 128.82°

0 + <E = 180° - 128.82°

<em><E = 51.</em><em>2</em><em>°</em>

6 0
2 years ago
Using the double number line shown, for the equation 5x+4=14, what is the value of x?
Alex777 [14]

Correct option is:

B. 2

<h2>Explanation:</h2>

From the double number line shown we can set:

(1) \ 0x=0 \\ \\ (2) \  x=? \\ \\ (3) \ 5x=10 \\ \\ (4) \ 5x+4=14

So we can solve this problem by using either equation (3) or (4). So, choosing equation (3):

5x=10 \\ \\ \\ Divide \ both \ sides \ by \ 5: \\ \\ x=\frac{10}{5} \\ \\ \boxed{x=2}

<h2>Learn more:</h2>

Solving equations: brainly.com/question/7747308

#LearnWithBrainly

3 0
3 years ago
i want to find out how many fish food boxes can fit into the shipping box my answer is 36 but i need help finding out how many a
Elis [28]

Answer:

you have to

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
For each of the following functions, (i) find the constant c so that f(x) is a pdf of a random variable X, (ii) find the cdf, F(
mel-nik [20]

Answer:

(a)

c=1/2

cdf  is    F(x) = x^2

Step-by-step explanation:

Remember that if   f  is the pdf of a random variable X .

\int\limits_{-\infty}^{\infty} f(x) \,dx = 1

Then,

(a)

\int\limits_{-\infty}^{\infty}  4xc \,dx = \int\limits_{0}^{1}  4xc \, d x = 2c = 1

Therefore

c=1/2

and

 f(x)=2x

then to compute the cdf, we have

F(x) = P(X \leq x) = \int\limits_{-\infty}^{x}   2y \,dy  =  \int\limits_{0}^{x}   2y \, dy =  x^2

7 0
2 years ago
(fog)(2) if f(x) = 3x + 1 and g(x) = x ^ 2 + 2
miss Akunina [59]

Answer:

(fog)(x)=f(g(x))=2(3x+2)−1=6x+4−1=6x+3=3(2x+1)

8 0
2 years ago
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