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3 years ago

13

UICHL Idlic3_21x 28x=What does x equal

1 answer:

Advocard [28]3 years ago

6 0

Answer:

this is not a real math equation.

Step-by-step explanation:

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3. Jen’s parents buy a tablet for her to use in school. Of the $1500 cost, her parents expect her to pay back $1000 one year lat

NNADVOKAT [17]

Answer:

<h3>33.3%</h3>

Step-by-step explanation:

Using the formula for calculating simple interest as shown;

Simple Interest = Principal * Rate *Time/100

Principal = Cost of tablet = $1500

Interest after one year = $1500-$1000 = $500

Time = 1year

Substituting this values into the formula;

$500 = 1500*rate*1/100\\Cross\ multiplying\\50,000 = 1500 * rate\\Rate = 50,000/1500\\Rate = 33.3%$

The interest rate that her parents assumed is 33.3%

4 0

3 years ago

What is the value of x?

rewona [7]

I have no clue but I just need points I’m Srry in advance

4 0

3 years ago

HELP!!!! PLEASE!!! 8 + (7 + 1) 2 ÷ 4*(1/2)^4? WHOEVER ANSWERS GETS BRAINLIEST

alexandr1967 [171]

Answer:

8 1/4

Step-by-step explanation:

8+(7+1)2 ÷ 4 · (1/2)^4

8+16 / 4 · 1/16

8+4 · 1/16

8+ 1/4 = 8 1/4

7 0

3 years ago

Read 2 more answers

Lola bought a new chair for $299. The sales tax was 8.25% of the chair’s price. Which of these is closest to the amount of the s

Andrews [41]

Answer:

$24.67

Step-by-step explanation:

7 0

3 years ago

Factor x^4-5x^2+4 show your work

ch4aika [34]

Answer:

$(x+2)(x-2)(x+1)(x-1)$

Step-by-step explanation:

STEP 1: Rewrite $x^{4}$ as $(x^2)^2$ .

$(x^2)^2-5x^2+4$

STEP 2: Let $u=x^{2}$ . Substitute $u$ for all occurrences of $x^{2}$ .

$u^2-5u+4$

STEP 3: Factor $u^2-5u+4$ using the AC method.

$(u-4)(u-1)$

STEP 4: Replace all occurrences of $u$ with $x^2$ .

$(x^{2} -4)(x^{2} -1)$

STEP 5: Rewrite $4$ as $2^{2}$ .

$(x^{2}-2^{2})(x^{2}-1)$

STEP 6: Since both terms are perfect squares, factor using the difference of squares formula, $a^2-b^2=(a+b)(a-b)$ where $a=x$ and $b=2$ .

$(x+2)(x-2)(x^{2}-1)$

STEP 7: Rewrite $1$ as $1^{2}$ .

$(x+2)(x-2)(x^2-1^2)$

STEP 8: Factor.

$(x+2)(x-2)(x+1)(x-1)$

4 0

3 years ago