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zepelin [54]
3 years ago
10

(7-b)+(3b+2)+(7-b)+(3b+2) Plz help me out I’m a lil stressed out with school

Mathematics
2 answers:
Rina8888 [55]3 years ago
5 0

Answer:

4b+18

Step-by-step explanation:

ankoles [38]3 years ago
3 0

Answer:

4b+18

Step-by-step explanation:

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Find the degree measure of each angle in the triangle
Karo-lina-s [1.5K]

Answer:

∠L = 43°

∠M = 121°

∠N = 16°

Step-by-step explanation:

<u>Start by setting all sides equal to 180</u>

3x - 5 + 7x + 9 + x = 180

<u>Add like terms</u>

11x + 4 = 180

<u>Solve for x</u>

11x + 4 = 180

      - 4     - 4

      11x = 176

     / 11     /11

        x = 16

<u>Now, plug in 16 for all instances of x on the triangle and solve.</u>

∠L = 43°

∠M = 121°

∠N = 16°

4 0
3 years ago
Evaluate f(x) = x2 + 1 for f(10).
user100 [1]
F(10) = (10)^2 + 1
= 100 + 1
= 101
8 0
4 years ago
Simplify: 8i^7+6i^5-5i^3-3i^2-7i-9
Dmitry_Shevchenko [17]
<span>Consider the remainder of the division of the power exponent of i by 4.
For a remainder r equal to 0, 1, 2 or 3, we have a power equal to 1, i, -1 or -i respectively, therefore:

</span>8i^7+6i^5-5i^3-3i^2-7i-9 =
8*(-i) + 6*i - 5*(-i) - 3*(-1) - 7i - 9 =
- 8i + 6i + 5i + 3 - 7i - 9 =
3 - 9 - 8i + 6i + 5i- 7i =
=\boxed{- 6 - 4i}

Answer:
\boxed{- 6 - 4i}

<span>

</span>
5 0
3 years ago
Gabriel is designing a rectangular planter box for their garden. It needs to cover an area of 15 1/2 m. Gabriel wants it to be 7
galina1969 [7]

Answer:

2m wide

Step-by-step explanation:

a=lw

15\frac{1}{2} =7\frac{3}{4} w

\frac{31}{2} =\frac{31}{4} w

w=\frac{\frac{31}{2} }{\frac{31}{4} } =\frac{(31)(4)}{(31)(2)} =2

wide = 2m

Hope this helps

4 0
2 years ago
If the probability that the Islanders will beat the Rangers in a game is 2/7, what is the probability that the Islanders will wi
Helga [31]

0.1328 is the probability that the Islanders will win exactly zero out of six games in a series against the Rangers.

<u>Step-by-step explanation:</u>

Given data is that probability the islanders will beat the rangers in a game is \frac{2}{7}.

So, probability that the islanders will not beat the rangers in the game is = 1-\frac{2}{7}=\frac{5}{7}

Let, x be the favorable outcome as,

x = no. of times islanders win the game

Probability of success (p) =  \frac{2}{7}

Probability of failure (q) = \frac{5}{7}

So, the probability of x would be,

                      x = n C_{r} \times(p)^{r} \times(q)^{n-r}

                     P(x=0) = 6 C_{0} \times\left(\frac{2}{7}\right)^{0} \times\left(\frac{5}{7}\right)^{6}

                      P(x=0) = 1 \times 1 \times \frac{(15625)}{117649} = 0.13281

5 0
3 years ago
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