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2 years ago

URGENT i need quick math help rn please:)

1 answer:

3 0

Multiplicity 2 means you're using that same root twice. So we will FOIL out (x+1)(x+1)(x-3). Doing that multiplying gives us $x^3+2x^2+x-3x^2-6x-3$ . Combining like terms gives us the third degree polynomial we are looking for: $x^3-x^2-5x-3$

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Mr. Jackson divided £420 between his children in the ratio of their ages, Mitch is 4 and Jo is 3

3241004551 [841]

Answer:

Mitch=60*4=240

Jo=60*3=180

Step-by-step explanation:

420/7=60

4 0

2 years ago

Amira’s karate class last one hour and 15 minutes and it is over at 5 PM what time does Amira’s karate class start

Reil [10]

3.45 pm this is because if you take 1.15 hours off of 5.00 you get 3.45

4 0

2 years ago

Read 2 more answers

Find the missing sides of the given similar triangle

tiny-mole [99]

Provide an attachment so we can assist you.

4 0

3 years ago

Evaluate S5 for 300 + 150 + 75 + … and select the correct answer below. 18.75 93.75 581.25 145.3125

Savatey [412]

we have that

$300 + 150 + 75 +...$

Let

$a1=300\\ a2=150\\ a3=75$

we know that

$\frac{a2}{a1} =\frac{150}{300} \\\\ \frac{a2}{a1}=0.5 \\ \\ a2=a1*0.50$

$\frac{a3}{a2} =\frac{75}{150} \\\\ \frac{a3}{a2}=0.5 \\ \\ a3=a2*0.50$

$a(n+1)=an*0.50$

Is a geometric sequence

Find the value of $a4$

$a(4)=a3*0.50$

$a(4)=75*0.50$

$a(4)=37.5$

Find the value of $a5$

$a(5)=a4*0.50$

$a(5)=37.5*0.50$

$a(5)=18.75$

Find $S5$

$S5=a1+a2+a3+a4+a5\\ S5=300+150+75+37.5+18.75\\ S5=581.25$

therefore

the answer is

$581.25$

Alternative Method

Applying the formula

$S_n=\frac{a_1 (1-r^n)}{1-r} \\\\a_1=300 \\ r=\frac{1}{2}\\\\ S_5=\frac{300(1-(\frac{1}{2})^5)}{1-\frac{1}{2}}\\\\=\frac{300(1-\frac{1}{32})}{\frac{1}{2}}\\\\=\frac{300 \times \frac{31}{32}}{\frac{1}{2}}\\\\=\frac{75 \times \frac{31}{8}}{\frac{1}{2}}\\\\=\frac{\frac{2325}{8}}{\frac{1}{2}}\\\\=\frac{2325}{8} \times 2\\\\=\frac{2325}{4}\\\\=581 \frac{1}{4}\\\\=581.25$

therefore

the answer is

$581.25$

6 0

2 years ago

Read 2 more answers

Can someone please help me find the answers to these two questions please?

Sliva [168]

Answer:

Question 13: x = 47°

Question 14: x = 67°

Step-by-step explanation:

Question 13:

add up all the known factors meaning 16, 27 and 90°, then subtract 180 from what you got from adding known factors

Question 14:

out out of all numbers meaning 19, 4 and 90°, then subtract 180 from what you got from adding all known factors

5 0

2 years ago