3 years ago

Could someone please help me asap? Thanks in advance! :)

Mathematics

1 answer:

Elden [556K]3 years ago

4 0

Answer:

Step-by-step explanation:

the standard form of a quadratic equation is

ax² + bx + c = 0 : a ≠ 0

obtain (5 + x)(5 - x) = 7 in this form by expanding the factors

25 - x ² = 7 ( subtract 7 from both sides )

18 - x² = 0 ( multiply through by - 1 )

x² - 18 = 0 ← in standard form

with a = 1, b= 0 and c = - 18 → A

You might be interested in

Find the perimeter of the figure to the nearest hundredth

Ostrovityanka [42]

Answer:

Step-by-step explanation:

8 0

3 years ago

Will give brainliest! And 100 points!!! Plz help. Pic attached

mylen [45]

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

The outlier, 78, is removed from the data set shown. 23, 23, 25, 27, 34, 34, 35, 41, 45, 45, 78 How does this affect the range?

GrogVix [38]

The range is decreased by 33.

5 0

3 years ago

The times to complete an obstacle course is normally distributed with mean 87 seconds and standard deviation 7 seconds. What is

Aleks [24]

Answer:

<em />

Step-by-step explanation:

8 0

3 years ago

Which expression is equivalent to

statuscvo [17]

Answer:

$\fbox{16(0.5x - 0.75y + 2)}$

Step-by-step explanation:

$8x - 12y + 32$

Take 4 common first,

$4(2x - 3y + 8)$

Since we need 16 outside the bracket, multiplying and dividing by 4,

$4 \times \frac{4}{4} (2x - 3y + 8)$

$16( \frac{2}{4} x - \frac{3}{4} y + \frac{8}{4} )$

Simplifying all the fractions,

$\fbox{16(0.5x - 0.75y + 2)}$

$\small \sf \: Thanks \: for \: joining \: brainly \: community!$

5 0

2 years ago