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3 years ago

I need help how do i do this

Mathematics

1 answer:

Anarel [89]3 years ago

7 0

Answer:

no geniune idea

Step-by-step explanation:

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HELP! WILL GIVE BRAINLEST

trasher [3.6K]

Answer:

Option C: 41

Step-by-step explanation:

<ABD+<CBD=90

<ABD=8x+1

<CBD=6x+5

(8x+1)+(6x+5)=90

Combine like terms

(8x+6x)+(1+5)=90

14x+6=90

14x=90-6

14x=84

divide both sides by 14

x=6

Now we plug that value into <DBC = 6x+5

6(6)+5=

36+5

7 0

2 years ago

Read 2 more answers

recent survey found that 71% of all adults over 50 wear glasses for driving. In a random sample of 30 adults over 50, what is

valentina_108 [34]

Answer:

Mean = 21.3

Standard Deviation = 2.48

Step-by-step explanation:

We are given the following in the question:

p = 71% = 0.71

Sample size, n = 30

We have to find the mean and the standard deviation of those that wear glasses.

$\text{Mean} = np\\=30(0.71)\\=21.3$

Thus, the mean of those who wear glasses is 21.3

$\text{Standard deviation} = \sqrt{npq}\\=\sqrt{np(1-p)}\\=\sqrt{30\times 0.71\times (1-0.71)}\\=2.48$

Thus, the standard deviation of those who wear glasses is 2.48

5 0

3 years ago

What is the value of x in the equation -5/8x =-160

Crank

Answer:

256

Step-by-step explanation:

1. Divide both sides by -5/8

-5/8x/-5/8 -160 divided by -5/8

When you do that you get 256

4 0

3 years ago

Consider the end behavior of the function g(x) = 4|x − 2| − 3.

horrorfan [7]

Answer:

Positive ; Positive

Step-by-step explanation:

Since there's a modulus, negative values also become positive

3 0

3 years ago

Read 2 more answers

Which expression is equivalent to 5y^3 over (5y)-^2

Flura [38]

Answer:

$125y^5$

Step-by-step explanation:

$\mathrm{Factor}\:\left(5y\right)^{-2}:\quad 5^{-2}y^{-2}$

$\mathrm{Cancel\:}\frac{5y^3}{5^{-2}y^{-2}}:\quad 5^3y^5$ $=5^3y^5$

$5^3=125$

<em>Hope this helps!!!</em>

3 0

3 years ago