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4 years ago

What is the problem that give you the answer x^2 + 8x + 15

Mathematics

2 answers:

kirza4 [7]4 years ago

7 0

23 is the best answer for this question

maw [93]4 years ago

3 0

X= -3 or -5. As, (-3*-3) + 8(-3) +15=0 and (-5*-5) + 8(-5) +15=0

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Simplify:- ~~~~~~~

Alchen [17]

$\sf \dashrightarrow \: - \frac{2}{5} - ( - \frac{3}{10} ) - ( - \frac{4}{7} )$

When there is a - in front of an expression in parentheses, change the sign of each term in the expression to +

$\sf \dashrightarrow \: - \frac{2}{5} + \frac{3}{10} + \frac{4}{7}$

Calculate the LCM of denominators

$\sf\frac{ - 28 + 21 + 40}{70}$

Calculate the difference

$\bf \underline{ \underline \frac{33}{70} }$

7 0

2 years ago

Read 2 more answers

The probability of getting a head when a biased coin is tossed is . The coin is tossed three times. Find the following probabili

S_A_V [24]

Answer:

a) P(three tails) = $\frac{1}{8}$

b) P(two tails followed by one head) = $\frac{1}{8}$

Step-by-step explanation:

coin is tossed three times so, outcome is

HHH, TTT, HTH, THH, HHT, THT, TTH, HTT.

Hence sample space will be

S = {HHH, TTT, HTH, THH, HHT, THT, TTH, HTT}

chance of getting three tails is '1' i.e. TTT

hence,

P(three tails) = $\frac{1}{8}$

two tails followed by one head is TTH

so, chance of getting that outcome is also '1'

hence,

P(two tails followed by one head) = $\frac{1}{8}$

6 0

3 years ago

Given the graph of log y=log(2)x. Find the area of the three inscribed rectangles

evablogger [386]

Answer: $6+2log_{2} 6$

Step-by-step explanation:

$S=s_{1} +s_{2} +s_{3} = 2(h_{1} +h_{2} +h_{3} )$

$h_{1} = log_{2}2=1$

$h_{2} = log_{2}4=2$

$h_{3} = log_{2}6$

$S = 2(1+2+log_{2}6) = 6+2log_{2}6$

8 0

3 years ago

A certain recipe ask for 5/9 cup of granola. How much is needed to make 2/3 of a recipe

Masteriza [31]

I think you divide 5/9 divided by 2/3.
5/9 divided by 2/3=4/3 simplified=2/3.
Just know I'm terrible at math so this could be like totally off the hook crazy and wrong.

7 0

4 years ago

Read 2 more answers

A company is expanding its building area from 12,500 square feet to 16,750 square feet. What is the percentage increase of the a

mars1129 [50]

Answer:

I think it’s 34 percent. If not I’m so sorry- but I’m like 99.999999 percent sure about it. Also use percentage calculators they help a lottttt

Love u bye ❤️

Step-by-step explanation:

4 0

3 years ago