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3 years ago

How to solve it? !! !!

Mathematics

1 answer:

Alex17521 [72]3 years ago

5 0

Am not really sure my answer is right

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An object travels 4/5 miles in one-half hour what is its speed

Sedaia [141]

8/5 miles per hour [edit]

4 0

4 years ago

Which expression is equivalent to

givi [52]

Answer:

$\boxed{D. 9x + 36}$

Step-by-step explanation:

Hey there!

Given info

9(x + 4)

Solve!

9*x = 9x

9*4 = 36

Answer

9x + 36

D. 9x + 36

Hope this helps :)

6 0

4 years ago

Read 2 more answers

Mr. Jackson took his new car on a family vacation.The car. 1,454.625 miles and used 4.5 tanks of gas. How many miles does he get

aleksklad [387]

(1454.625 mles)/(4.5 tanks) = 323.25 miles/tank

He gets 323.25 miles on a single tank of gas.

7 0

3 years ago

How to solve these two problems ？

puteri [66]

8) $\theta$ is -0.896 radians

9) length of arc is 41.91 cm

Solution:

Given that,

$tan\ \theta = \frac{-5}{4}$

$\theta$ is in quadrant 4

To find: $\theta$

From given,

$tan\ \theta = \frac{-5}{4}\\\\\theta = tan^{-1} \frac{-5}{4}\\\\\theta = tan^{-1} (-1.25)\\\\\theta = -51.34$

Thus value of $\theta$ is -51.34 degrees

Convert degrees to radians

$-51.34\ degree = -51.34 \times \frac{ \pi }{180}\ radian\\\\-51.34\ degree = -0.896\ radian$

Thus $\theta$ is -0.896 radians

From given,

radius = 15.4 cm

$\theta = \frac{13 \pi }{15}$

The length of arc when angle in radians is:

$arc\ length = r \times \theta\\\\arc\ length = 15.4 \times \frac{ 13 \pi }{15}\\\\arc\ length = 15.4 \times 2.721\\\\arc\ length = 41.91$

Thus length of arc is 41.91 cm

4 0

3 years ago

Factor 7w2−175.(1 point) −7(w−25) 7(w−25) 7(w−5)(w+5) 7(w−5)(w−5)

Nutka1998 [239]

Answer:

7(w + 5)(w -5)

Step-by-step explanation:

a² - b² = (a + b)(a - b)

7w² - 175 = 7w² - 7*25

= 7(w² - 25)

= 7(w² - 5²)

= 7(w + 5)(w -5)

6 0

3 years ago