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Scrat [10]
3 years ago
7

NEED HELP ASAP

Mathematics
1 answer:
poizon [28]3 years ago
5 0
The answer is -4,0 4,8 because u would solve for one variable in one of the equations and then substitute the result into the other
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If f(x) = x + 7 and g(x)=1/x, what is (f o g)(x)?
Black_prince [1.1K]

Answer: 1/x + 7

Step-by-step explanation: you plug the function g(x) into the function f(x) .. substitue g(x) for the x in f(x)

G(x) = 1/x , so you plug that in the x of f(x) and get 1/x + 7

8 0
3 years ago
An astronaut weighs 174 pound on earth and 29 pound on the moon, if his daughter weighs 108 pounds on earth, what is his daughte
jekas [21]

Answer:

If my thinking is right she should weigh about 18 pounds or so.

Step-by-step explanation:

17% of 174 is 29

17% of 108 is 18

4 0
3 years ago
Use a 95​% prediction interval to predict the useful life of a brand A cutting tool when the cutting speed is 45 meters per minu
qwelly [4]

Answer:

<em>The answer resides in the explanation.</em>

<em>Pls rate as brainliest </em>

Step-by-step explanation:

The predicted useful life of a brand A cutting tool when the speed is 45 meters per minute is 1.2 to 5.5 hours.

The predicted useful life of a brand B cutting tool when the speed is 45 meters per minute is 3.4 to 5.4 hours.

The prediction interval for brand A is larger than the prediction interval for brand B because the estimated standard error of  y^ is different for the two intervals.

The prediction intervals are both larger than the corresponding confidence intervals.

The standard error for the estimated mean value of y is smaller than the standard error for the predicted value of y.

The predicted useful life of a brand A cutting tool that is operated at 100  meters per minute is -0.59 hours

The actual predicted useful life of a brand A cutting tool when the speed is 100 meters per minute is 0.0 to 2.3 hours.

6 0
3 years ago
Easy geometry question about rhombus/measures :))
OLEGan [10]

Answer:

∠1 = 51

∠2= 51

∠3= 39

∠4= 51

3 0
3 years ago
Rewrite the equations using a negative exponent!! ill give brainliest, any random or incomplete answers will be reported!!
vesna_86 [32]

Answer:

11. x^{-2}

12. m^{-3}

13. (x+2y)^{-4}

14. (x+3y)^{-2}

15. (x+y)^{-3}

16. (2x+3y)^{-6}

17. (-3m-9)^{-3}

18. x^{-4}

Step-by-step explanation:

In all of them you just subtract the bottom exponent from the top exponent.

5 0
3 years ago
Read 2 more answers
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