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DochEvi [55]
3 years ago
8

please tell me the step process of this btw this is 7th-grade math its angle measurements I'm confused about the process pls hel

p.

Mathematics
1 answer:
icang [17]3 years ago
5 0

Answer:

Angle BDA is 90°

(2x + 3) + 55 = 90

2x + 3 + 55 = 90

2x + 58 = 90

2x = 90 - 58

2x = 32

x = 32/2

<u>x = 16</u>

Hence,

x=16

x=16Angle BDA is 90°.

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Okay have posted it.
Crazy boy [7]
It would be angle 1. to explain complementary means it adds up to 90
7 0
2 years ago
Read 2 more answers
4. I am a multiple of 7, I am between 50 and 70. Who could I
never [62]

Question 4.

The multiples of 7 are those numbers obtained from the product of 7 and a whole number.

The multiples of 7 between 50 and 70 are:

\text{ 56 and 63}

You could be 56 or 63

5 0
1 year ago
Using the graph below, find r(-3) please
ruslelena [56]

Considering the given graph, it is found that the numeric value of the function r(x) at x = -3 is of 2.

<h3>How to find the numeric value of a function given it's graph?</h3>

The numeric value of a function is the value of y for the given value of x, hence, we have to look at the value of x on the horizontal axis, and verify the equivalent value of y on the vertical axis.

In this problem, when the horizontal axis is of x = -3, the vertical axis is of y = 2, hence the numeric value of the function r(x) at x = -3 is of 2.

More can be learned about the numeric value of a function at brainly.com/question/14556096

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7 0
1 year ago
29^2-22^2 whole divided by 51
klio [65]
The answer is 7. You need to use BIDMAS - Brackets Indices Division Multiplication Addition Subtraction
5 0
3 years ago
Scores on an exam follow an approximately normal distribution with a mean of 76. 4 and a standard deviation of 6. 1 points. What
crimeas [40]

If scores on an exam follow an approximately normal distribution with a mean of 76.4 and a standard deviation of 6.1 points, then the minimum score you would need to be in the top 2% is equal to 88.929.

A problem of this type in mathematics can be characterized as a normal distribution problem. We can use the z-score to solve it by using the formula;

Z = x - μ / σ

In this formula the standard score is represented by Z, the observed value is represented by x, the mean is represented by μ, and the standard deviation is represented by σ.

The p-value can be used to determine the z-score with the help of a standard table.

As we have to find the minimum score to be in the top 2%, p-value = 0.02

The z-score that is found to correspond with this p-value of 0.02 in the standard table is 2.054

Therefore,

2.054 = x - 76.4 ÷ 6.1

2.054 × 6.1 = x - 76.4

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12.529 + 76.4 = x

x = 88.929

Hence 88.929 is calculated to be the lowest score required to be in the top 2%.

To learn more about normal distribution, click here:

brainly.com/question/4079902

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5 0
1 year ago
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