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2 years ago

Please solve for x.

Mathematics

1 answer:

hodyreva [135]2 years ago

5 0

Hello!

As you can see, 3x+9 makes a right angle, or 90 degrees. We can turn this into an equation and solve for x.

3x+9=90

First we subtract 9 from both sides.

3x=81

Then divide both sides by 3.

x=27

Therefore, x=27.

I hope this helps!

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Simplify C^5 x c Plz can someone figure it out cuz I don’t get it

Fofino [41]

Answer:

c^6

Step-by-step explanation:

So, c is the same as c^ 1 ... therefore

c^5 x c

= c^5 x c^1

When we multiply two numbers with same base and different exponent, we add the exponents which in this case as 5 and 1

So c^5 x c^1

= c^(5+1)

= c^6

This is the simplest form

5 0

3 years ago

Read 2 more answers

H(1) = can someone help my brother ?

Fantom [35]

Answer:

h(1) = -2

Step-by-step explanation:

What h(1) is saying is the value of x = 1. We need to find the y-value.

We see from the graph that when x = 1, y = -2.

7 0

2 years ago

Write 176 out of 800 as a percentage

harina [27]

To find 176 out of 800, you must do this.
176/800(to find the decimal form)=0.22
Then you multiply the decimal form with 100
0.22×100=22%
So, 176 out of 800 is 22%.

5 0

3 years ago

The cost of a daily newspaper varies from city to city. However, the variation among prices remains steady with a standard devia

My name is Ann [436]

Answer:

|t| =|-0.96|=0.96< 2.718

since calculated' t' value is less than tabulated value 't'.

we accept null hypothesis at 1 % level of significance.

The data support the claim that the mean cost of a daily news paper is $1.00

Step-by-step explanation:

Step:-(1)

Given the sample size n = 12

Given Twelve costs yield a mean cost of $0.95 with a standard deviation of $0.18

mean of the sample(x⁻) = $0.95

Standard deviation of sample (S) = $0.18

Given claim that the mean cost of a daily newspaper is $1.00.

The mean of the population 'μ' = $1.00.

Null hypothesis:-H₀:'μ' = $1.00.

Alternative hypothesis: H₁:'μ' ≠ $1.00.

level of significance ∝ = 0.01

Step2:-

The test statistic

$t = \frac{x^{-}-u_{0} }{\frac{S}{\sqrt{n} } }$

$t = \frac{0.95-1 }{\frac{0.18}{\sqrt{12} } }$

on calculation, we get

t = -0.96

|t| =|-0.96|=0.96

Degrees of freedom γ = n-1 = 12-1 =11

tₐ = 2.718

Calculated value t = 0.96

Tabulated value t at 0.01 level for 11 degrees for two tailed test = 2.718

since calculated' t' value is less than tabulated value 't'.

conclusion:-

we accept null hypothesis at 1 % level of significance.

The data support the claim that the mean cost of a daily news paper is $1.00

3 0

3 years ago

In algebra, we use a(n)____to represent a variable

konstantin123 [22]

You can use any letter you want, but the most common letters are x, y, and z.

Hope this helps! ;)

6 0

3 years ago

Read 2 more answers