All categories

3 years ago

Exsplain too please, how has your day been btw?

Mathematics

2 answers:

Fudgin [204]3 years ago

8 0

Answer:

Answer choices A, E, and F

Step-by-step explanation:

$2^5\cdot2^4=2^9$ , or just 2 multiplied by itself 9 times. I'm doing good, thanks for asking! PM me if you have more questions.

bogdanovich [222]3 years ago

5 0

Answer:

2⁹

Step-by-step explanation:

${2}^{5} \times {2}^{4} \\ = {2}^{5 + 4} \\ = {2}^{9}$

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Joe borrowed 12 books from the library four books were for himself the rest were for his little brother how can the number of bo

AlexFokin [52]

Answer:

subtract 4 from 12

Step-by-step explanation:

3 0

3 years ago

During a football game a concert in stenciled family three hamburgers and two white dogs for a total of $13 and another family t

jeka94

Answer:

Price of hamburgers = $2

Price of white-dogs = $3

Step-by-step explanation:

Let

The number price of hamburgers be x

The number price of white-dogs be y

Then the first family buys 3 hamburgers and 2 white -dogs for $13

3x + 2y = 13-----------------------------(1)

Another first family buys 2 hamburgers and 5 white -dogs for $16

2x + 5y = 16----------------------------(2)

To solve let us multiply eq(1) by 2 and eq(2) by 3, we get

6x + 4y = 26-----------------------------(3)

6x + 15y = 48----------------------------(4)

subracting (3) from (4)

6x + 15y = 48

6x + 4y = 26

(-)

-------------------------

11y = 22

---------------------------

$y =\frac{22}{11}$

y =2

Now substituting the value of y in eq(1),

3x + 2(2) = 13

3x + 4 = 13

3x = 13-4

3x = 9

x = $\frac{9}{3}$

x =3

4 0

4 years ago

Solve. What is 99×89-34÷2-1?

Slav-nsk [51]

Answer:

8793

Step-by-step explanation:

Multiply and divide first, making the equation 8811-17-1. Now subtract. This leaves 8793

7 0

3 years ago

Read 2 more answers

I NEED HELP ASAP PLS ANSWER

viktelen [127]

I gotchu!! It’s 40:))

3 0

3 years ago

If 3 to the power of x+1 = 81 and 81 to the power of x-y = 3 then what is the value of x and y?

fgiga [73]

From 1st condition:

3^(x+1)=81
Take log on both sides,
➡ log [3^(x+1)]=log81
Use the property: log(x^a)=a logx
➡ (x+1) log 3=log(3⁴)
➡ (x+1) log 3=4×log 3
➡ (x+1)=4 (log 3 /log 3)
➡ x+1=4
➡ x=3➡↪➡↪ ANS

From 2nd condition, (Same process are repeated)

81^(x-y)=3
➡ 3^4(x-y)=3
➡ log [3^4(3-y)]=log 3
➡ 4(3-y) log 3=log 3
➡ (3-y)=(log 3)/(4log 3)
➡ 3-y=(1/4)
➡ y=11/4 ➡↪➡↪ ANS

4 0

3 years ago