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2 years ago

I need help with this will be giving 10 points

Mathematics

2 answers:

dusya [7]2 years ago

8 0

Answer:

Its D

Step-by-step explanation:

Both triangles are obtiuse rubber goose green mouse guva juice

Darya [45]2 years ago

6 0

IT IS D I knew it pls give brain,y I’m trying to get new rank before my day

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On Thursday, 13,450 people attended a baseball game. Only 11,350 people attended the game. Only 11,350 people attended the game

mariarad [96]

First 0-0=0
Next 5-5=0
Then 4-3=1
After 3-1=2
Then 1-1=0
Move comma after 2

3 0

3 years ago

how many quarts of pure antifreeze must be added to 6 quarts of a 40% antifreeze solution to obtain a 60% antifreeze solution

lora16 [44]

Answer:

3 quarts

Step-by-step explanation:

First, find how many quarts of antifreeze is in the mixture.

0.4 x 6 = 2.4

Now, make it into a fraction by putting the antifreeze amount over the rest so:

2.4/6

Now add + a at the end of the numerator and bottom to make:

2.4 + a/ 6 + a.

Now, turn the percentage you want to strengthen or weaken the mixture into a percentage. So, 3/5.

Now, make it an expression by adding = 3/5 at the end of the equation.

2.4 + a/ 6 + a = 3/5

Now, use cross multiplication.

12 + 5a = 18 + 3a

Now, solve the equation.

12 + 5a = 18 + 3a

-3a. -3a

12 + 2a = 18

-12. -12

2a = 6

/2. /2

a = 3.

Therefore, the answer is 3 quarts.

7 0

3 years ago

<img src="https://tex.z-dn.net/?f=x2%20%3D%2017" id="TexFormula1" title="x2 = 17" alt="x2 = 17" align="absmiddle" class="latex-f

eduard

Step-by-step explanation:

you solve by using sqaure roots. hope this helps

5 0

4 years ago

What is the recursive rule for an=3n+5

inessss [21]

Answer:

Option d is correct.

Step-by-step explanation:

We have given a formula $a_n=3n+5$

We will put different values of n so, as to get $a_n$

from the given formula

When n =1 we get

$a_1=3(1)+5=8$

When n=2 we get

$a_2=3(2)+5=11$

When n=3 we get

$a_3=3(3)+5=14$

We can see that next term is 3 more than the previous term

Hence, $a_1=8;a_n=a_{n-1}+3$

Therefore, Option d is correct.

5 0

3 years ago

If a^3-1/a^3=4 then what is the value of a-1/a ??

natita [175]

Answer:

1 or -0.5±1.9365i

Step-by-step explanation:

We know that $x^{3} - y^{3} = (x-y) ^{3} +3xy(x-y)$

So plug in x=a and y=1/a, (a-1/a)^3+3*a*1/a*(a-1/a)=4

Let a-1/a=k, k^3+3k=4, k=1 or a complex conjugate -0.5±1.9365i

That's the answer.

5 0

3 years ago