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Anna11 [10]
3 years ago
11

The vertex angle of an isosceles triangle measures 40°. What is the measure of a base angle?

Mathematics
1 answer:
disa [49]3 years ago
8 0
<span>Triangle is 180 degrees, so you will subtract 50 from 180 which will give you 130.</span>
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Solution to equation 5 X (x-2)=7
Natasha2012 [34]

Answer:

3.4

Step-by-step explanation:

5 X (x-2) = 7

5x - 10 = 7

5x        = 7 +10

5x         = 17

x            17/5

x = 3.4

7 0
3 years ago
Assume a researcher recruits 150 African American and Caucasian individuals taking warfarin to determine if there is a differenc
Anettt [7]

Answer:

Z=11.0

Step-by-step explanation:

Let Caucasian individuals be the population 1 and African American be the population 2. So, we are given that

n=150

n1=75

mean1=xbar1=6.1.

standard deviation1=S.D1=σ1=1.1.

Variance1=V(x1)=σ1²=1.1²=1.21.

n2=75.

mean2=xbar2=4.3.

standard deviation2=S.D2=σ2=0.9.

Variance2=V(x2)=σ2²=0.9²=0.81.

The z-statistic is

Z=\frac{xbar1-xbar2}{\sqrt{\frac{V(x1)}{n1}+ \frac{V(x2)}{n2} } }

Z=\frac{6.1-4.3}{\sqrt{\frac{1.21}{75}+ \frac{0.81}{75} } }

Z=\frac{1.8}{\sqrt{0.0161+ 0.0108 } }

Z=\frac{1.8}{\sqrt{0.0269 } }

Z=\frac{1.8}{0.164 } }

Z=10.97

Z=11.0

So, the z value obtained while calculating the test statistic is approximately 11.0.

4 0
3 years ago
Find the percent change from 72 to 80.
LenaWriter [7]
11.1111 I think this is it
3 0
3 years ago
Wrote an expression gor <br> m &lt; RST
grigory [225]

The expression for the angle m∠RST from the given bisctor is; 6x - 18

<h3>How to find the expression for a given angle?</h3>

From the given image in the attachment we are given that;

SQ bisects ∠TSR

m ∠RSQ = 3x - 9

Now, since  SQ is a bisector of ∠TSR, we can say that

m∠RST = 2 * m∠RSQ

Thus angle RST is expressed as;

m∠RST = 2(3x - 9)

m∠RST = 6x - 18

Read more about Angle expression at; brainly.com/question/16953095

#SPJ1

4 0
2 years ago
How much faster did powell run his leg race than bolt?
Keith_Richards [23]
Subtract 12 seconds  from 11.7 seconds

The Answer is .3  
7 0
3 years ago
Read 2 more answers
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