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2 years ago

Please help me find x

Mathematics

2 answers:

Pavel [41]2 years ago

8 0

The answer for this will be 2

Viktor [21]2 years ago

7 0

Answer:

x = 48 degrees

Step-by-step explanation:

This is an isosceles triangle because two sides of the triangle are marked equally

so it means the two bottom corners of the triangle (the 66 degrees and the bottom angle on the right) are equal (1)

The theorem says that all the angles in a triangle adds up to 180 degrees (2)

(1), (2) =) 180 - 66*2 = 48 degrees

x = 48 degrees

I hope this help^^ Sr if I make any mistake in the grammar

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Helen and Nicola share some money into the ratio 1:3 , what fraction of the total does Helen have ?

Aneli [31]

Answer:

If we expect that it is respective then Helen will have 25% of the money

Step-by-step explanation:

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3 years ago

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

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3 years ago

PLS HELP ASAP IW ILL GIVE BRIANLEST IF RIGHT DO NOT ANSWER UNUSEFUL ANSWERS

Roman55 [17]

1 equals 0.46 (make a line over the 6 to show it is repeated)

2 equals 0.4 (make a line over the 4 to show it is repeated)

3 equals -0.6 (make a line over the 6 to show it is repeated)

4 equals -0.857142 (make a line over all numbers past the decimal to show it is repeated)

5 equals 3.3409 (make a line over the 09 at the end to show it is repeated)

6 equals -1.7727 (make a line over the 27 at the end to show it is repeated)

7 equals 66.5%

8 equals 3.16 (make a line over the 6 to show it is repeated)

9 equals -9 over 10

10 equals -17 over 20

11 equals -3 and 4 over 5

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Tanya [424]

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