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kow [346]
3 years ago
11

5. Higher Order Thinking Write two

Mathematics
1 answer:
Nutka1998 [239]3 years ago
6 0

Answer:

Here we have a math thinking case.

Usually when we add two numbers, we try to deconstruct the numbers in such a way that the sum is easier. One thing that we always try to do, is to make a 10.

For example, in;

4 + 9

We know that 9 = 6 + 3

Then we can write:

4 + (6 + 3)

And re do the sum as:

(4 + 6) + 3

10 + 3 = 13

Now, we want to apply the same principle, but this time we don't want to make a 10.

We also can, for example, make a 5, like in:

2 + 13

We know that 2 + 3 = 5

then:

2 + 13 = 2 + (10 + 3) = 2 + 3 + 10 = 5 + 10 = 15

Other similar example:

2 + 7

We know that we can rewrite 7 as 3 + 4

Then:

2 + (7) = 2 + (3 + 4) = 2 + 3 + 4 = 5 + 4 = 9

This is not exactly easier, but in some cases can be useful.

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Answer:

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Step-by-step explanation:

5 0
3 years ago
Find the missing side length BM. Round answer to the nearest tenth.
xenn [34]

Answer: BM = 21.4

Step-by-step explanation:

Considering the given triangle BMS, to determine angle BM, we would apply the sine rule. It is expressed as

m/SinM = s/SinS = b/SinB

Where m, s and b are the length of each side of the triangle and angle M, Angle S and angle B are the corresponding angles of the triangle.

From the information given,

Angle M = 102°

Angle B = 35°

Angle S = 180 - (102 + 35) = 43°

b = MS = 18

s = BM

Therefore

18/Sin 35 = BM/Sin 43

Cross multiplying, it becomes

BMSin35 = 18 × Sin 43

BM × 0.5736 = 18 × 0.6820

0.5736BM = 12.276

Dividing the left hand side and the right hand side of the equation by 0.5736, it becomes

0.5736BM/0.5736 = 12.276/0.5736

BM = 21.4

6 0
3 years ago
Sandy is working with a carpenter to frame a house. They are using 8-foot-long boards, but each board must be cut to be 94.6 inc
shtirl [24]
7 foot is the answer...
7 0
3 years ago
The claim is that the standard deviation of the speeds of drivers in Bradford is 8 mph. An experienced driver feels that this is
Irina-Kira [14]

Answer:

Null hypothesis is rejected. Standard deviation is > 8 miles per hour

Step-by-step explanation:

σ [Population standard deviation] = 8 , s [sample standard deviation] = s

n [no of items] = 8

H0 [Null] : σ = 8 ; H1 [Alternate - Right Tail] : σ > 8

χ2 = (n - 1) . s^2 / σ^2

= 49 x (10.5)^2 / 82 = 5402.25 / 64

χ2 = 84.410

df [degree of freedom] = n -1 = 50 - 1 = 49

P value (χ^2 49 > 84.410) = 0.00125

p = 0.0013

p < α ie 0.05

So, H0 is rejected

Hence we state that standard deviation is > 8 miles per hpur

6 0
3 years ago
PLS HELP ASAP. NO LINKS <br> When z= 9, the value of z2 + 1 is
elena55 [62]
Answer is 82

substitute z for 9

9^2 = 81+ 1= 82
6 0
2 years ago
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