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3 years ago

Subtract simplify your answer completely

Mathematics

2 answers:

Dahasolnce [82]3 years ago

8 0

Answer:

Option A is the correct option

solution,

$\frac{8x + 7}{ {x}^{2} + 4x + 5 } - \frac{5x - 6}{ {x}^{2} + 4x + 5} \\ = \frac{8x + 7 - (5x - 6)}{ {x}^{2} + 4x + 5} \\ = \frac{8x+ 7 - 5x + 6}{ {x}^{2} + 4x + 5 } \\ = \frac{8x - 5x + 7 + 6}{ {x}^{2} + 4x + 5 } \\ = \frac{3x + 13}{ {x}^{2} + 4x + 5 }$

Hope this helps...

Good luck on your assignment...

garri49 [273]3 years ago

4 0

Answer:

Answer is A

Step-by-step explanation:

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A spinner is divided into 15 identical sectors and labeled 1 through 15.

katovenus [111]

Answer:

spin it 35 times

Step-by-step explanation:

there are 3 multiples of 4 under 15 (4,8,12) so the chances of a 4 will be 3/15 or 1/5 to find the chances of 7 times just multiply by 7 so the finale answer is 1/35

P.S. please give brainliest

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2 years ago

What is the greatest prime you must consider to test whether 1471 is prime?

a_sh-v [17]

Answer:

1471

Step-by-step explanation:

First we have to check if it is divisible with the first 15 prime numbers

1471÷2=735.5(not divisible)

1471÷3=490.33( not divisible)

1471÷5=294.2( not divisible)

1471÷7=210.14(not divisible)

1471÷11=133.73(not divisible)

1471÷13=113.15(not divisible )

1471÷17=86.53(not divisible )

1471÷19=77.42(not divisible )

1471÷23=63.96(not divisible )

1471÷29=50.72(not divisible )

1471÷31=47.45(not divisible )

1471÷37=39.76(not divisible )

1471÷41=35.88(not divisible )

1471÷43=34.20(not divisible )

1471÷47=31.39(not divisible )

1471÷53=27.75

1471÷61=24.11

1471÷67=21.85 ......

8 0

3 years ago

What would the markup be???

Alja [10]

Hello!

To find the markup you have to subtract the selling price from the store price so

91 - 65 = 26

So there is a $26 markup

Hope this helps!

5 0

3 years ago

What are the measures of angles Q and R

fgiga [73]

Answer:

Q and R are complementary which means they add up to give 90°.

so we just need to add both linear equations and equals to 90.

(9x-6)+(8x-1)=90

17x-7=90

17x=97

x=5.7

no we just need to place 5.7 in place of X and find Q and R

9(5.7)-6=45.4° is Q

8 (5.7)-1= 44.6° is R

8 0

3 years ago

Read 2 more answers

Fill in Sin, Cos, and tan ratio for angle x. <br> Sin X = 4/5 (28/35 simplified)

Fantom [35]

Answer:

Given: $\sin(x) = (4/5)$ .

Assuming that $0 < x < 90^{\circ}$ , $\cos(x) = (3/5)$ while $\tan(x) = (4/3)$ .

Step-by-step explanation:

By the Pythagorean identity $\sin^{2}(x) + \cos^{2}(x) = 1$ .

Assuming that $0 < x < 90^{\circ}$ , $0 < \cos(x) < 1$ .

Rearrange the Pythagorean identity to find an expression for $\cos(x)$ .

$\cos^{2}(x) = 1 - \sin^{2}(x)$ .

Given that $0 < \cos(x) < 1$ :

$\begin{aligned} &\cos(x) \\ &= \sqrt{1 - \sin^{2}(x)} \\ &= \sqrt{1 - \left(\frac{4}{5}\right)^{2}} \\ &= \sqrt{1 - \frac{16}{25}} \\ &= \frac{3}{5}\end{aligned}$ .

Hence, $\tan(x)$ would be:

$\begin{aligned}& \tan(x) \\ &= \frac{\sin(x)}{\cos(x)} \\ &= \frac{(4/5)}{(3/5)} \\ &= \frac{4}{3}\end{aligned}$ .

7 0

3 years ago