3 years ago

What is the answer I got it wrong someone pls help

Mathematics

1 answer:

rosijanka [135]3 years ago

8 0

Answer:

Step-by-step explanation:

1st one

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Brums [2.3K]

2x^3+7x^2+12x-8 is the answer

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3 years ago

Sandra notices a fourth racer called the Whirlwind. Its poster says it covers 1232 yards in 180 seconds. She wants to compare th

Daniel [21]

Answer:

6.8yards/seconds

Step-by-step explanation:

Speed = Distance/Time

Given the following

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Time taken = 180 seconds

Substitute to get the speed

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Speed = 6.84

Hence whirlwind's speed in yards per seconds to the nearest tenth is 6.8yards/seconds

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3 years ago

You want to know how many miles harriet went. which situation about her exercise best represents the inequality 15x 7 > 52?

nata0808 [166]

The miles Harriet went is x>3

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3 years ago

Which function represents g(x), a reflection of f(x) = (3)x across the y-axis?

Artyom0805 [142]

Answer: $g(x)=(3)^{-x}$

Step-by-step explanation:

We know that if a figure is reflected across y axis then its y coordinate remains same but the x coordinate changes its polarity.

i.e. the function $f(x)$ will become $f(-x)$ .

Now, the given function : $f(x)=(3)^x$

Then , after reflection across y axis the new function will become:

$g(x)=f(-x)=(3)^{-x}$

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3 years ago

Matthew is using a microscope in science class. The microscope magnified the specimen 4x10^2 . If the specimen is 3cm long how l

choli [55]

Answer:

12 meters

Step-by-step explanation:

The apparent size is ...

(4·10^2)·(3 cm) = 12·10^2 cm = 12 m

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1 m = 10^2 cm

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3 years ago