3 years ago

REALLY EASY NEED ANSWER BY 10:00 P.M. AND WILL GIVE BRAINLEIST. PLS HURRY IF YOU HAVE TIME PLS ANSWER OTHER QUESTIONS THX

Mathematics

1 answer:

ratelena [41]3 years ago

7 0

Answer:

these are what my calculator got when I graphed them, hope this helps!!

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A 25 foot ladder rests against a buliding . The base lf the ladder is 15 feet away from the base of the building. At what height

professor190 [17]

X^2+15^2=25^2
X^2+225=625
Isolate X
X^2=400
Take the square root on both sides
X=positive and negative 20 but in this case the negative is thrown out because you can't have a negative side
Answer: 20

3 0

3 years ago

4) Arnold ate breakfast at a restaurant. His total came to $76.75. There is an 8% sales tax and 15% tip. What is Arnold's total

lisov135 [29]

Answer:

The total cost is $95.32.

Step-by-step explanation:

Given:

Total came to $76.75. There is an 8% sales tax and 15% tip.

Now, to find the total cost.

8% sales tax is there so we calculate the amount after adding sales tax:

$76.75 + 8% of $76.75

$76.75+\frac{8}{100}\times 76.75$

$76.75+0.08\times 76.75$

$76.75+6.14$

$82.89$

The cost after sales tax is $82.89.

Now, the cost after 15% tip:

$82.89 + 15% of $82.89

$82.89+\frac{15}{100}\times 82.89$

$82.89+0.15\times 82.89$

$82.89+12.43$

$95.32$

The cost after the tip is $95.32.

Therefore, the total cost is $95.32.

8 0

3 years ago

Question 5

polet [3.4K]

Answer:

b, c, e

Step-by-step explanation:

Esoeranza's cat weighs 1.3 x (130% of x). You can select all the expressions that equal to 1.3x.

8 0

3 years ago

Read 2 more answers

What value of x makes this equation true? 6x/-4=6(-1/2) a) -2 b)2 c)3 d)-3

Yuri [45]

6x/-4 = 6(-1/2)
6x/-4 = - 3...multiply by -4
6x = -3 * -4
6x = 12
x = 2

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3 years ago

The wind speed changed negative 5 mph every hour for w hour's. the total change was negative 30 mph. How many hours did the chan

nasty-shy [4]

6 hrs it took to change

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3 years ago