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3 years ago

please help with this question. i am having such a hard time in geometry this year and I dont know how to solve these. :(

Mathematics

2 answers:

jek_recluse [69]3 years ago

4 0

Answer:

i could help if you want :)

Step-by-step explanation:

Nana76 [90]3 years ago

3 0

If you need help just message me

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What’s 7-9+9-3+6-9+7

skelet666 [1.2K]

The answer to your question is eight

5 0

4 years ago

Please help me!!! Its math and I am struggling

Romashka-Z-Leto [24]

Answer:

16:36 = 32:72 = 12:27

Step-by-step explanation:

An easy way for me to solve this is to divide the first value by the second. If they turn out to be the same fraction, then they are equivalent.

Is 16:36 = 32:72?

Yes, because $\frac{16}{36}=\frac{4}{9} =\frac{32}{72}$

Is 16:36 = 12:27?

Yes, because $\frac{16}{36}=\frac{4}{9} =\frac{12}{27}$

Is 16:36 = 3:4?

No because $\frac{16}{36}=\frac{4}{9} \neq \frac{3}{4}$

I hope this helps!!! Please rank if it does and let me know if you have any more questions about this!

6 0

3 years ago

1. Identify the number of terms in the<br>expression 9m + 7.<br>:

Soloha48 [4]

Answer:

2 terms

Step-by-step explanation:

Each term is either a number or a variable, or a mix of the two.

In this case, the two terms are:

9m & 7.

3 0

3 years ago

the vertex of this parabola is at (4,-3). When the x-value is 5, the y-value is -6. what is the coefficient of the squared expre

kondaur [170]

Answer:

Step-by-step explanation:

The work form of this upside down parabola is

$y=-|a|(x-h)^2+k$

It's VERY important that you remember that the negative value there in front of the absolute value of a just means that the parabola is upside down. a itself will not be negative (and we know that because of the absolute value symbols there!). Filling in the x, y, h, and k values we were given allows us to solve for the |a|:

$-6=-|a|(5-4)^2-3$ and

$-6=-|a|(1)^2-3$ and

$-6=-|a|1-3$ and

$-6=-|a|(-2)$ and

3 = -|a|

Again, the negative simply tells us the parabola is upside down, so the absolute value of a = 3, choice c.

6 0

3 years ago

A bank loaned out $21,500, part of it at the rate of 15% annual interest, and the rest at 9% annual interest. The total interest

Nuetrik [128]

Answer:

So the portion of the loan lent at 4% is 21000(0.5955) = $12,505.5

And the portion of the loan lent at 15% is 21000(0.4045) = $8494.5

Step-by-step explanation:

This problem can be solved in several ways. The way I like is as follows.

Ask yourself at what interest would $ 21,000 yield and interest of $ 2,215 in one year ? The equation to solve is:

21000(P) = 2215

P = 0.1055 or 10.55 %

This number is a weighed average of the 4% yield and the 15% yield so the next equation to solve is

10.55 = 4(1 – X) + 15X

Where X is the proportion of the loan given at the indicated interest. So

10.55 = 4 – 4X + 15X

6.55 = 11X

X = 0.5955

1-X = 0.4045

So the portion of the loan lent at 4% is 21000(0.5955) = $12,505.5

And the portion of the loan lent at 15% is 21000(0.4045) = $8494.5

6 0

3 years ago