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3 years ago

Please help me with this!!

Mathematics

1 answer:

Ratling [72]3 years ago

5 0

for the first one , send sin^4 (x) to L.H S and then use the identity ( a^2 - b^2 ) = (a+b)(a-b)

you will have the answer in 2 steps literally..

For second one , Add -1 on both sides , leave RHS Untouched.. On LHS , Substitute 1 as sin^2 (x) + cos^2(x) and starting solving by taking common and condensing repeatedly..

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14. Two cars are traveling on two different roads that are perpendicular to each other. On a coordinate

Klio2033 [76]

Answer:

-68/7

Step-by-step explanation:

slope1 of Car 1 that pass (-5,-8) (2,7)

= (y1-y2)/(x1-x2)=(2-(-5))/(7-(-8))=7/15

Slope2 of car 2 that pass (5,1) (10,y)

slope 1 and slope2 are perpendicular =>slope 2 =-15/7

make slope2 y=(-15/7)x+b

for it pass(5,1) => 1=(-15/7)5+b =>b=82/7 => y=(-15/7)x+82/7

put (10,y) in => y=(-15/7) 10+82/7=-68/7

3 0

2 years ago

Find the limit as t approaches 8 for the function f(t)=7(t-1)(t-1)

Ratling [72]

Answer:

7³

Step-by-step explanation:

You could answer this after a quick inspection. 7 remains constant as t approaches 8. Each of the (t -1) terms will approach 7. So, multiplying these factors together, you'll get 7(7)(7) = 7³3 as your answer, the limit as t approaches 8 of the given expression.

5 0

3 years ago

Kevin is trying to find a white sock in his drawer. He has 16 white socks, 4 brown socks, and 6 black socks. What is the probabi

dolphi86 [110]

The probability of the black sock is 6/26 for the white is 16/26 and for the brown is 4/26

5 0

2 years ago

Angelique says that finding the absolute value of a number is the same as finding the opposite of the number. For example |-5|=5

jarptica [38.1K]

If u r trying 2 find the absolute value of a positive number, the absolute value of it will not be a negative, it will always be a positive.

8 0

2 years ago

Read 2 more answers

an NFL team kicker misses 2 out of every 11 field goals if he missed 8 filed goals throughout the season how many did he attempt

Aleks [24]

For this equation, you want to do it in fractions/ratios to properly solve it. You would have his average misses out of every field goal and his real missed attempts over total. It would look like this

$\frac{2}{11}$ = $\frac{8}{x}$

You want to solve for x since x is the total amount of field goals that he attempted. You can do this by doing cross multiplication:

(2)(x) = (8)(11)

From here you can get:

2x = 88

Divide each side by 2 to isolate x and you get:

x= 44

So he made a total of 44 field goals.

3 0

3 years ago

Read 2 more answers