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Wewaii [24]
3 years ago
11

What are the measures of 7 and 2 ? Explain please

Mathematics
1 answer:
Reika [66]3 years ago
5 0

Answer:

angle 2 is 99

angle 7 is 81

Step-by-step explanation:

Angle 2 and the angle we are given are congruent because they are vertical.

Angle 7 and the angle we are given form a line, so they add up to 180.

180-99 = 81

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Is 104.12 greater than 104.002
Liono4ka [1.6K]
Yes, 104.12 is greater than 104.002

because 104.12 rounds up to 104.1
        and 104.002 rounds up to 104.0


8 0
3 years ago
2x × 9 = ?<br><br> What is the answer?<br> Is the answer 18x?
scoundrel [369]

Answer:

The answer is 18x.

Step-by-step explanation:

2x times 9 is 18x because when you multiply 9 times 2, you get 18 and the x carries over.


5 0
3 years ago
Read 2 more answers
10# A consumer advocacy group is doing a large study on car rental practices. Among other things, the consumer group would like
ella [17]

ANSWER:

104

STEP-BY-STEP EXPLANATION:

Given:

Standard deviation (σ) = 700

Confidence level = 95%

Mean error (Eμ) = 135

We have for a confidence level of 95%:

\begin{gathered} \alpha=100\%-95\%=5\%=0.05 \\  \\ \alpha\text{/2}=\frac{0.05}{2}=0.025 \\  \\ \text{ The corresponding Z value for \alpha/2 = 0.025 is as follows:} \\  \\ Z_{\alpha\text{/2}}=1.96 \end{gathered}

Now, we calculate the minimum value of the sample size as follows:

\begin{gathered} n=\left(\frac{Z_{\alpha\text{/2}}\cdot\sigma}{E}\right)^2 \\  \\ \text{ We replacing:} \\  \\ \:n=\left(\frac{1.96\cdot 700}{135}\right)^2 \\  \\ \:n=103.2858\cong104 \end{gathered}

The minimum sample size needed is 104

3 0
1 year ago
What is the length of side TS?
balandron [24]

Step-by-step explanation:

In order to find the length of side TS, first we need to find the length of side TR which is perpendicular to side QS.

By Geometric mean property:

{TR}  =  \sqrt{6 \times 12}  \\  \therefore \:  {TR}  =  \sqrt{6 \times 6 \times 2}   \\ \therefore \:  {TR}  =  6\sqrt{2}   \\  \\ In \:  right \:  \triangle  \: TRS:  \\ TS^2 = TR^2 + RS^2  \\ \therefore \:  (3x)^{2}  =  {(6 \sqrt{2}) }^{2}  +  {(12)}^{2}  \\  \therefore \:  9x^{2}  =  72 +  144 \\  \therefore \:  9x^{2}  =2 1 6 \\ \therefore \:  x^{2}  = \frac{2 1 6}{9}  \\ \therefore \:  x^{2}  =24 \\ \therefore \: x =  \sqrt{24}  \\  \therefore \: x = 4.89897949 \\ \therefore \: x  \approx \: 4.9 \\ \therefore \: 3x  = 3 \times 4.9 \\ \therefore \: 3x  =14.7 \\    \huge \red{ \boxed{\therefore  \: TS = 14.7 \: units}}

3 0
3 years ago
Read 2 more answers
I need to know how to simplify this equation
ArbitrLikvidat [17]

\frac{ {3}^{x + 4} -  {3}^{2x + 2}  }{ {3}^{x - 2} \times  {3}^{x + 4}  }  =   \frac{x + 4 - 2x - 2}{(x - 2) \times (x + 4)}  =  \frac{ - x + 2}{ {x}^{2} + 4x - 2x - 8 }  =  \frac{ - x + 2}{ {x}^{2}  + 2x - 8}
i could be wrong, was kinda in a rush
4 0
4 years ago
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