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Gekata [30.6K]
3 years ago
13

What is the value of 6 1/3 - 4 6/7 =

Mathematics
2 answers:
beks73 [17]3 years ago
7 0

Answer:

2 -11/21

Step-by-step explanation

Nutka1998 [239]3 years ago
3 0


1 10 /21
Solution by separating parts
Rewriting our equation with parts separated
=6+13−4−67
=
6
+
1
3
−
4
−
6
7
Solving the whole number parts
6−4=2
6
−
4
=
2
Solving the fraction parts
13−67=?
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What is the first step in constructing an incenter to triangle xyz?
Marizza181 [45]

The first step is constructing an angle bisector for one of the angles of the triangle.

We have to find the first step for the constructing an inscribed circle

<h3>What is the incenter triangle?</h3>

The incenter of a triangle is the point from which the distances to the sides are equal, in this point we can start to construct the inscribed circle in the triangle because the incenter would also be the center of the circumference.

Therefore the first step in constructing an angle bisector for one of the angles of the triangle.

To learn more about the incenter triangle visit:

brainly.com/question/7537975

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1 year ago
the length of a rectangle is 7 yd more than 5 times the width. the perimeter is 150 yd. find the length and the width.
Vaselesa [24]
P = 2(L + W)
P = 150
L = 5W + 7

150 = 2(5W + 7 + W)
150 = 2(6W + 7)
150 = 12W + 14
150 - 14 = 12W
136 = 12W
136/12 = W
11.33 (or 11 1/3) = W <=== width

L = 5W + 7
L = 5(34/3) + 7
L = 170/3 + 7
L = 170/3 + 21/3
L = 191/3 (or 63 2/3) = L <=== length
4 0
3 years ago
Researchers conducted a study to find out if there is a difference in the use of ereaders by different age groups. randomly sele
ikadub [295]

No, there is significant difference in the use of e readers by different age groups.

Given sample 1 ( 29 years old) n_{1}=628, p_{1}=7%, sample 2( 30 years old)n_{2}=2309, p_{2}=0.11.

We have to first form hypothesis one null hypothesis and other alternate hypothesis.

H_{0}:π1-π2=0

H_{1}:π1-π2≠0

α=0.05

Difference between proportions p_{1}-p_{2}  =-0.04

p_{d}=0.07-0.11=-0.04

The pooled proportion needed to calculate standard error is:

p=(X_{1} -X_{2} )/(n_{1} +n_{2} )

=(44+254)/(628+2309)

=0.10146

The estimated standard error of difference between means is computed using the formula:

S_{p_{1} -p_{2} }=\sqrt{p(1-p)/m_{1}+p(1-p)/n_{2}  }

=\sqrt{0.101*0.899/628+0.101*0.899/2309}

=\sqrt{0.000143+0.00003}

=\sqrt{0.000173}

=0.01315

Z= Pd-(π1-π2)/S_{p_{1} -p_{2} }

=-0.04-0/0.013

=-3.0769

This test is a two tailed test so the p value for this test is calculated as (using z table)

p value:2 P(Z<-3.0769)

=2*0.002092

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P value< significance level of 5%.

Hence there is enough evidence to show the claim that there is a significant difference in the use of e readers by different age groups.

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Question is incomplete as it also includes:

Significance level of 5%.

4 0
2 years ago
Calculate the measure of ABC to the nearest tenth of a degree.
serg [7]

Answer:

I had done rough method on the page

Step-by-step explanation:

I think first once is correct ...

4 0
2 years ago
Any one have the rest of the Surface Area and Volume Unit Test ??? please !!
kotykmax [81]

Answer:

Second option is the right choice.

Step-by-step explanation:

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4 0
2 years ago
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