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sweet-ann [11.9K]
3 years ago
12

How do I solve this? Like what are the steps to solving this question

Mathematics
2 answers:
LekaFEV [45]3 years ago
6 0

Answer:

see explanation

Step-by-step explanation:

(6)

55° and ∠2 are vertical angles and congruent, hence

∠2 = 55°

∠1 and ∠2 are complementary angles ( They form a right angle )

∠1 = 90° - 55° = 35°

(7)

132° and ∠2 are alternate angles and congruent, hence

∠2 = 132°

∠1 and ∠2 are supplementary ( straight angle )

∠1 = 180° - 132° = 48°

ozzi3 years ago
5 0

Answer:

1 = 35

2 = 55

Step-by-step explanation:

so we know that between 1 and 2 it is 90 degrees we also know that angle 1 and the angel to the left of it make 180 degrees so do

180 - 90 = 90

this means the angle next to line 1 is also 90 degrees

then we would see that the 55 degrees the 90 degrees and angle 1 make 180 degrees so do

55 + 90 = 145

180 - 145 = 35 degrees so angle 1 is 35 degrees

then we would find angle 2

90 - 35 = 55 degrees so angle 2 = 55

hope this helps : )

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What is the value of the expression 1/2(6x9x1)+15
Vanyuwa [196]

Answer:

the answer of the expression is 42

Step-by-step explanation:

PEMDAS parenthesis are first so we start out with 6x9x1 and the answer to that is 54, next is MULTIPLICATION so we take 1/2 times 52 which is 27 then next is ADD so we add 15 and the answer is 42

5 0
4 years ago
Sally gets a cup of coffee and a muffin every day for breakfast from one of the many coffee shops in her neighborhood. She picks
aniked [119]

Answer:

<u>A. Mean of the amount Sally spends on breakfast daily = $ 3.90</u>

<u>Standard deviation of the amount Sally spends on breakfast daily = $ 0.34 (rounding to the next cent)</u>

<u>B. Mean of the amount Sally spends on breakfast weekly = $ 27.30</u>

<u>Standard deviation of the amount Sally spends on breakfast weekly = $ 0.89 (rounding to the next cent)</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Average price of a cup of coffee = $ 1.40

Standard deviation = $0.30

Average price of a muffin = $ 2.50

Standard deviation = $ 0.15

The two prices are independent of each other

2. What is the mean and standard deviation of the amount Sally spends on breakfast daily?

Let's recall that:

1. The mean of the sum of two independent variables is the sum of their means.

2. The variance of the sum of two independent variables is equal to the sum of their variances.

Therefore,

Mean of the amount Sally spends on breakfast daily = Average price of a cup of coffee + Average price of a muffin

Replacing with the values we know:

Mean of the amount Sally spends on breakfast daily = 1.40 + 2.50

Mean of the amount Sally spends on breakfast daily = $ 3.90

Variance of the amount Sally spends on breakfast daily = Variance of the price of a cup of coffee + Variance of the price of a muffin

Replacing with the values we know:

Variance of the amount Sally spends on breakfast daily = 0.30² + 0.15²

Variance of the amount Sally spends on breakfast daily = 0.1125

Standard deviation of the amount Sally spends on breakfast daily = √0.1125

Standard deviation of the amount Sally spends on breakfast daily = $ 0.34 (rounding to the next cent)

3. What is the mean and standard deviation of the amount she spends on breakfast weekly (7 days)?

Mean of the amount Sally spends on breakfast weekly = 7 * Mean of the amount Sally spends on breakfast daily

Mean of the amount Sally spends on breakfast weekly = 7 * 3.90

Mean of the amount Sally spends on breakfast weekly = $ 27.30

Variance of the amount Sally spends on breakfast weekly = 7 * Variance of the amount Sally spends on breakfast daily

Variance of the amount Sally spends on breakfast weekly = 7 * 0.1125

Variance of the amount Sally spends on breakfast weekly = 0.7875

Standard deviation of the amount Sally spends on breakfast weekly = √0.7875

Standard deviation of the amount Sally spends on breakfast weekly = $ 0.89 (rounding to the next cent)

3 0
4 years ago
The average fish at a fishing tournament was 12.4 pounds. Some of the weight last of the fish are shown on the table:
Ivanshal [37]

Answer:

15.5kg

Step-by-step explanation:

12.4kg × 5 = 62kg,

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6 0
3 years ago
Math Question :
saw5 [17]
Let x = amount of mortgage (aka the amount by the bank)

25% of the monthly income of $3000 is 0.25*3000 = 750 dollars

So using this rule, the family can pay up to $750 per month on mortgage

1% of the amount loaned (x) is equal to this figure, so

0.01*x = 750
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x = 75000

Therefore, the most expensive mortgage this family can afford is $75,000. Anything higher and they go over budget.
7 0
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erastova [34]

Answer: Brian should ask a price of £520 for the guitar.

Step-by-step explanation:

Given : Making cost of guitar=  £325

Mark up percentage = 60%=0.60  [we divide percentage by 100 to convert into decimal]

Now , the  price should be asked by Brian May for the guitar would be :

(Making cost of guitar) + 60% of (Making cost of guitar)

=(Making cost of guitar) + (0.60) x (Making cost of guitar)

= (Making cost of guitar) x (1+0.60) [By distributive property]

= (£325) x (1.60)

= £520

Hence, Brian should ask a price of £520 for the guitar.

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