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kkurt [141]
3 years ago
12

Help me in all of these,plz show your work

Mathematics
1 answer:
jenyasd209 [6]3 years ago
5 0
To find the area of all of the figures, all you need to do is base x height or the length x width.
Your answers for 1-6 are all correct.
For 7-9, remember that the area is the length times the width. 
7) length x width, 42 x 30=1260 
8) 17 x 22= 374
9) Since the length and width are the same in a square just multiply the side by itself. 2.7 x 2.7= 7.29
Hope this helps.
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By solving substitution y=4x-6<br> Y= 5x how I need steps
stiv31 [10]

Answer:

x= -6

Step-by-step explanation:

y=4x-6

y=5x, so where ever you see y, put 5x there.

hence, 5x=4x-6

5x-4x=-6

x= -6

5 0
3 years ago
A box contains four equal sized cards labeled 1, 3,5, and 7. Tim will select one card from the bow. What is the probability that
Zielflug [23.3K]

Answer: The probability is zero.

Step-by-step explanation:

The labels on the 4 cards are 1, 3, 5 and 7. Because the cards are equal, the probability of dragging at random each one of them is equal to 1/4 = 0.25.

Now, the probability that Tim selects a card labeled with a 4 is equal to the number of cards labeled with a 4, divided the total number of cards.

We do not have cards labeled with a 4, so the probability is:

p = 0/4 = 0

because we do not have any card labeled with a 4, the probability of selecting one at random is equal to zero.

8 0
3 years ago
4% of _____ days is 56 days
schepotkina [342]
We have an equation: 56/? = 4/100

Cross multiply:
4*? = 56*100
⇒ ? = 56*100/4
⇒ ?= 1,400

4% of 1,400 days is 56 days~
4 0
3 years ago
Read 2 more answers
Look at image for question
kotegsom [21]

Answer:

r=0.5 or 1/2

Step-by-step explanation:

if you multiply 0.5 to each Xs you can find out why r is 0.5

8 0
3 years ago
#1 what is the population and what is the sample?
klemol [59]

Population: All high school students.   We're interested in the health of <em>all</em> of them, that's our population.

Sample: Athletes who were surveyed.  Our sample is where we got our actual data.

4 0
3 years ago
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