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PilotLPTM [1.2K]
2 years ago
8

Please help! I need answers for both questions it’s very confusing!

Mathematics
2 answers:
SpyIntel [72]2 years ago
6 0
When it seems the negative number get bigger, they’re actually getting smaller. For example -13 is greater than -20. Plus, the absolute value would always be positive.


The answer to number 1 would be:

-15 < -8 8/9 < -3.3


The answer to number 2 would be:


15 < -3.3 < -8 8/9



I hope this helped, and have an awesome day! <3
Lilit [14]2 years ago
5 0

Answer:

for number 5 its:

-15 -8 8/9 -3.3

and for number 6 its:

-3.3 -8 8/9 and -15

also sorry if its wrong

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Ten large marbles weigh as much as 14 small marbles. How many large marbles weigh as much as 35 small marbles?
Paladinen [302]
To get the answer we can use proportion
10 large ------------- 14 small
x large -------------- 35 small
crossmultiply
10*35=x*14
350=14x            /:14
350:14=14x:14
25=x-its the answer
3 0
2 years ago
Read 2 more answers
Yosef can eat 21 jamuns while Rose can eat just 15.
Gennadij [26K]

Answer:

40%

Step-by-step explanation:

1+.40=1.4

1.4 x 15 = 21

7 0
3 years ago
The inequality x-y&gt;0 is satisfied by point (-1,1). Type true or false in the space provided.
rewona [7]

Answer:

e8ew80e8fjc89re

Step-by-step explanation:

ewr98f8j divoerkl

8 0
3 years ago
What are the solutions of the equation 9x4 – 2x2 – 7 = 0? Use u substitution to solve. tions of the equation 9
skelet666 [1.2K]

Answer:

Step-by-step explanation:

Let u^2=x^4\\u = x^2

Subbing in:

9u^2-2u-7=0

a = 9, b = -2, c = -7

The product of a and c is the aboslute value of -63, so a*c = 63.  We need 2 factors of 63 that will add to give us -2.  The factors of 63 are {1, 63}, (3, 21}, {7, 9}.  It looks like the combination of -9 and +7 will work because -9 + 7 = -2.  Plug in accordingly:

9u^2-9u+7u-7=0

Group together in groups of 2:

(9u^2-9u)+(7u-7)=0

Now factor out what's common within each set of parenthesis:

9u(u-1)+7(u-1)=0

We know this combination "works" because the terms inside the parenthesis are identical.  We can now factor those out and what's left goes together in another set of parenthesis:

(u-1)(9u+7)=0

Remember that u=x^2

so we sub back in and continue to factor.  This was originally a fourth degree polynomial; that means we have 4 solutions.

(x^2-1)(9x^2+7)=0

The first two solutions are found withing the first set of parenthesis and the second two are found in other set of parenthesis.  Factoring (x^2-1) gives us that x = 1 and -1.  The other set is a bit more tricky.  If

9x^2+7=0 then

9x^2=-7 and

x^2=-\frac{7}{9}

You cannot take the square root of a negative number without allowing for the imaginary component, i, so we do that:

x=±\sqrt{-\frac{7}{9} }

which will simplify down to

x=±\frac{\sqrt{7} }{3}i

Those are the 4 solutions to the quartic equation.

5 0
3 years ago
Triangles ABC and DEF similar
Anarel [89]

Answer:

DE = 4 1/2

EF = 3 3/4

Step-by-step explanation:

AB/AC = DE/DF

6/4 = DE/3

cross-multiply:

4DE = 18

DE = 18/4 or 4 1/2

AB/BC = DE/EF

6/5 = 4.5/EF

cross-multiply:

6EF = 22.5

EF = 3.75

4 0
2 years ago
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