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Natasha_Volkova [10]
3 years ago
6

PLssssss only need help with questions 2 and 4. I Will also give brianlist

Mathematics
1 answer:
inessss [21]3 years ago
3 0

Answer:

First oneB Second one A

Step-by-step explanation:

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James has 16 balloons . ¼ of his balloons are red . How many red balloons does he have.
vesna_86 [32]
4 because 1/4 is basically dividing by 4
6 0
3 years ago
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I'm very confused on how to solve this problem, can anyone please help? Thanks!
Pepsi [2]

Answer:

.

Step-by-step explanation:

DC = 16 and

DB = 30 so

CB = 14

DB = 30 and

EB = 49 so

EB = 19

5 0
3 years ago
PLEASE HELP WILL MARK BRAINLIEST<br> -SEE ATTACHMENT-
yuradex [85]

ANSWER

(x - 5) ^{5}  =  {x}^{5}  - 25 {x}^{4} + 250 {x}^{3}   - 1250 {x}^{2} + 3125x- 3125

EXPLANATION

From the Pascal's triangle,

The coefficients are :

1, 5, 10,10, 5,1

Because of the negative sign, the expansion will alternate sign.

(x - y) ^{5}  =  {x}^{5}  - 5 {x}^{4} y + 10 {x}^{3}  {y}^{2}  - 10 {x}^{2}  {y}^{3}  + 5x {y}^{4}  -  {y}^{5}

We now put y=5 into the expansion to get,

(x - 5) ^{5}  =  {x}^{5}  - 5 {x}^{4} (5) + 10 {x}^{3} ( {5}^{2})  - 10 {x}^{2}  ({5})^{3}  + 5x( {5})^{4}  - {5}^{5}

(x - 5) ^{5}  =  {x}^{5}  - 25 {x}^{4} + 250 {x}^{3}   - 1250 {x}^{2} + 3125x- 3125

3 0
3 years ago
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Vertex of x^2-10x+30
Shtirlitz [24]

The easiest way to find the vertex is to convert this standard form equation into vertex form, which is y = a(x - h)^2 + k.

Firstly, put x^2 - 10x into parentheses: y = (x^2 - 10x) + 30

Next, we want to make what's inside the parentheses a perfect square. To do that, we need to divide the x coefficient by 2 and square it. In this case, the result is 25. Add 25 inside the parentheses and subtract 25 outside of the parentheses: y = (x^2 - 10x + 25) + 30 - 25

Next, factor what's inside the parentheses and combine like terms outside of the parentheses, and your vertex form is: y = (x - 5)^2 + 5.

Now going back to the formula of the vertex form, y = a(x - h)^2 + k, the vertex is (h,k). Using our vertex equation, we can see that the vertex is (5,5).

3 0
3 years ago
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Integrated mathematics 2. need help with chapter 5 test please​
Pani-rosa [81]

Answer:

1/4

Step-by-step explanation:

\text{Diamonds, spades, clubs and hearts make up the 4 suits of a deck of cards, }

\text{which contains 52 cards. There are 13 diamonds in a pack.}

\text{Probability of an event:}

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\text{Probability of getting a diamon}d = \frac{13}{52} = \frac{1}{4}.

\text{So the chance that you draw out a diamond from a deck}=\frac{1}{4} .

8 0
2 years ago
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