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zalisa [80]
2 years ago
8

3² - 4 . (-1) . (-4) = ?

Mathematics
1 answer:
maria [59]2 years ago
5 0
3x3 -4= 5 5(-1)= -5 -5(-4)= 20
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Ann paid $5.20 in sales tax for an $80 purchase. What percent sales tax
Doss [256]

Answer:

$22.84

Step-by-step explanation:

The tax is calculated by 0.075 * 21.25 = 1.59375 or $1.59. So the total bill is the cost of items purchased plus tax, which is $21.25 + $1.59 = $22.84.

3 0
3 years ago
Find the missing segment in the image below​
Bogdan [553]

Answer:

3

Step-by-step explanation:

Intercept theorem

DE // CB ⇒ \frac{AD}{AC} = \frac{AE}{AB}

⇒ \frac{6}{6+?} =\frac{4}{4+2}

⇒ ? = 3

7 0
2 years ago
I dont understand this question, and needs to be done by tomorrow morning please help​
gladu [14]

Answer:

ABCD and EFGH

ABCD and PQRS (or EFGH and PQRS)

Dilate by a scale factor of 3

Step-by-step explanation:

Congruent means they have the same shape and size.

Similar means they have the same shape, but not necessarily the same size.

The orientation (rotation angle) or position do not matter.

EFGH is reflected and rotated, so it maintains the same shape and size as ABCD.  Therefore, they are congruent.

PQRS is scaled and translated, so it has the same shape, but different size than ABCD.  Therefore, they are similar but not congruent.

Also, PQRS is similar to EFGH, but not congruent.

To make EFGH congruent to PQRS, we need to make it the same size.  So we need to scale EFGH by a factor of 3.

3 0
3 years ago
Are you good at maths?????????????????????????
Flauer [41]

The probability that a student, chosen at random, does not study chemistry is 20/41.

<h3>What is Probability?</h3>

Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event. For an experiment having 'n' number of outcomes, the number of favorable outcomes can be denoted by x. The formula to calculate the probability of an event is as follows.

Probability(Event) = Favorable Outcomes/Total Outcomes = x/n

Here, Total number of student = 41

         Student who does not study chemistry = 20

So, the probability = favorable outcome / total outcomes

             P(not studying chemistry) = 20 / 41

Thus, The probability that a student, chosen at random, does not study chemistry is 20/41.

Learn more about Probability from:

brainly.com/question/11234923

#SPJ1

7 0
2 years ago
Select the simplified form of this expression 14[8+5(x-10)] A.70x+(-28) B.182x-140 C.70x+(-588) D.5x+62 E. 70x+(-42)
Marat540 [252]

Answer: C. 70x+(-588)

4 0
3 years ago
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