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LuckyWell [14K]
2 years ago
15

Which expression is equivalent to

Mathematics
2 answers:
disa [49]2 years ago
5 0

Answer:

Expression 1

Step-by-step explanation:

14x + 35 - 21y

14x + 35 - 21y \\  \frac{14x}{7}  +  \frac{35}{7}  -  \frac{21y}{7}  \\ 2x + 5 - 3y

Rus_ich [418]2 years ago
5 0

Answer:

Its Expression 2: 7(2x + 5 - 3y)

Step-by-step explanation:

just got it right

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-4 + (-8) - (-2) + 4
melisa1 [442]

Answer:

-6

Step-by-step explanation:

-4+ -8 = -12 +2 = -10 +4 = -6

3 0
3 years ago
Read 2 more answers
Can I get help with this please
S_A_V [24]

Answer:

Step-by-step explanation:

you want to multiply y by 2  or divide by 1/2  

? = 1/2  in this problem

3 0
3 years ago
determine if each polygons are similar, if so, write the similarity statement and the similarity ratio. if not explain why.
Delicious77 [7]

Answer:

They are not similar

Step-by-step Explanation:

For two polygons to be considered similar, two conditions must be met:

1. The ratio of their corresponding sides must be equal, and must have the same scale factor.

2. Their corresponding angles must be the same. That is, the corresponding angles must be congruent.

Now let us examine the two polygons ( ∆AYP and ∆BOX) given to ascertain if they are similar.

First, we can observe that only two of their corresponding sides were given. The third corresponding side, "YP/OX" is not given. This makes it difficult for us to tell if the polygons are similar, if we are to base our conclusion on merely considering the ratio of their corresponding sides.

Although, the two given corresponding sides (AY/BO & AP/BX), both have equal ratio ⅖, i.e. AY/BO = AP/BX = ⅖. This is not enough to tell both polygons are similar, as we cannot tell if the third corresponding side would give us same ratio, since it wasn't given in the diagram.

==>Next is to examine the interior angles of the polygons, whether the measure of their corresponding angles are the same.

Thus, from the diagram, we can see that two angles of the each triangle were given. We can find the measure of the third angle not given since we know that sum of the interior angles of a triangle = 180°

Thus, <P in ∆AYP = 180 - (90+20) = 180 - 110

<P = 70°

Thus, <B in ∆BOX = 180 - (90+80) = 180 - 170

<B = 10°

From the above calculation, comparing both polygons having known the measures of their corresponding angles, we can conclude that both polygons given in the question are not similar.

This is because the measure of their corresponding angles are not congruent.

<A is not congruent to <B, so likewise with <P and <X.

4 0
3 years ago
A dress needs 3 1/4 yards of fabric to make. If the matching jacket requires 5/6 less yards of fabric. How much fabric is needed
oksian1 [2.3K]
Fabric needs to make a dress = 3 1/4
fabric needs to make jacket= 3 1/4 - 5/6
= 29/12 or 2 5/12
Hence total fabric needed for both pieces is
= 3 1/4 + 2 5/12
= 68/12 or 5 8/12 or 5 2/3 yards
3 0
3 years ago
How much money will you have at the end of one year if interest is compounded semiannually at 10% on a $600 deposit?
Masja [62]
The formula required to answer this is:
A=P(1+\frac{r}{n})^{nt}
where  A is the amount of the principal P after n compounding periods per year at r interest rate (as a decimal fraction).
Plugging in the given values, we get:
A=600(1+\frac{0.1}{2})^{2\times1}=661.5
Rounding to the nearest dollar, we get $662.00. Therefore a is the best answer choice.

6 0
3 years ago
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