3 years ago

Question 30

Mathematics

1 answer:

V125BC [204]3 years ago

6 0

Answer:

a. 26 ft

Step-by-step explanation:

When triangles are similar their sides are proportional

4/8 = h/(44+8)

1/2(52) = h

h = 26

You might be interested in

Simplify the expression X^-1

IgorC [24]

Answer:

Step-by-step explanation:

look at picture

6 0

2 years ago

Forever Fitness charges $50 a month and $15 for each exercise class you take. Peachtree Gym charges $75 a month and $10 for each

Anarel [89]

Answer:

dont know sorry

Step-by-step explanation:

3 0

2 years ago

Using GCF and the distributive property, write two equivalent expressions for 30+45?

yaroslaw [1]

5x15, 3x25 because 30+45=75 and both 5x15 and 3x25 equal 75

6 0

2 years ago

What is the velocity of a skateboarder whose momentum is 100kg-m/s and the mass is 15kg?

Jobisdone [24]

Answer:

6.67 m/s

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Questions (no partial grades if you don't show your work) 1. In a group of 6 boys and 4 girls, four children are to be selected.

mariarad [96]

Answer:

Total number of ways will be 209

Step-by-step explanation:

There are 6 boys and 4 girls in a group and 4 children are to be selected.

We have to find the number of ways that 4 children can be selected if at least one boy must be in the group of 4.

So the groups can be arranged as

(1 Boy + 3 girls), (2 Boy + 2 girls), (3 Boys + 1 girl), (4 boys)

Now we will find the combinations in which these arrangements can be done.

1 Boy and 3 girls = $^{6}C_{1}\times^{4}C_{3}=6\times4$ =24

2 Boy and 2 girls= $^{6}C_{2}\times^{4}C_{2}=\frac{6!}{4!\times2!}\times\frac{4!}{2!\times2!}=15\times6=90$

3 Boys and 1 girl = $^{6}C_{3}\times^{4}C_{1}=\frac{6!}{4!\times2!}\times\frac{4!}{3!}=\frac{6\times5\times4}{3 \times2} \times4=80$

4 Boys = $^{6}C_{4}=\frac{6!}{4!\times2!} =\frac{6\times 5}{2\times1}=15$

Now total number of ways = 24 + 90 + 80 + 15 = 209

7 0

2 years ago