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lesya692 [45]
2 years ago
10

X(x+7)=4x+10 then needs to get the normal form of the equation x= ?, x=?

Mathematics
1 answer:
Vanyuwa [196]2 years ago
8 0

Answer:

x = - 5, x = 2

Step-by-step explanation:

Given

x(x + 7) = 4x + 10 ← distribute left side

x² + 7x = 4x + 10 ( subtract 4x + 10 from both sides )

x² + 3x - 10 = 0 ← in standard form

(x + 5)(x - 2) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 5 = 0 ⇒ x = - 5

x - 2 = 0 ⇒ x = 2

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We are driving to Las Vegas. The sign says that it is one hundred forty-five miles to Las Vegas.
nata0808 [166]

Answer:

233.35488 km (Rounded to 233 km)

Step-by-step explanation:

If you convert miles to kilometers then you would use this conversion factor:

1 mile = 1.609344 km (or 1.61 km)

so in this case,

145 mile = 1.609344 km x 145

145 mile = 233.35488 km

I could also round it to 233 km.

Since your on a trip... i hope u enjoy ur journey to Las Vegas!

5 0
8 months ago
What is the total cost to the nearest cent? $14.30 watch; 6.75% tax
shutvik [7]

Answer:

$15.27

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
What is the rate of change shown in the graph
ahrayia [7]

Answer:

-4/3  (Answer A)

Step-by-step explanation:

Here we go from the point (-3, 3) on the left to the point (0, -1) on the right.  It is immediately apparent that x (the run) increases by 3 from -3 to 0 and that y (the rise) decreases by 4 from 3 to -1.  Thus, the slope of this line (which is also the rate of change) is

m = rise / run = -4/3  (Answer A)

7 0
3 years ago
Common factors of 20,25,40
dimaraw [331]
The factors of 20 are:
1, 2, 4, 5, 10, 20

The factors of 25 are:
1, 5, 25

The factors of 40 are:
1, 2, 4, 5, 8, 10, 20, 40

The common factors are:
1, 5

The Greatest Common Factor:
GCF = 5

7 0
2 years ago
Calculate the ratios in the table using the side lengths that you recorded in Part C.
exis [7]

Answer:

The ratios are;

\dfrac{BC}{AB} = \dfrac{3}{5}

\dfrac{AC}{AB} =  \dfrac{4}{5}

\dfrac{BC}{AC}  = \dfrac{3}{4}

\dfrac{DE}{AD} =  \dfrac{3}{5}

\dfrac{AE}{AD} = \dfrac{4}{5}

\dfrac{DE}{AE} =\dfrac{3}{4}

Step-by-step explanation:

Given that the lengths of the sides are;

\overline {AB}  = 20

\overline {BC}  = 12

\overline {AC}  = 16

\overline {AD}  = 10

\overline {DE}  = 6

\overline {AE}  = 8

The ratios are;

\dfrac{Length \ opposite \ \angle A}{Hypothenus} = \dfrac{BC}{AB} = \dfrac{12}{20} = \dfrac{3}{5}

\dfrac{Length \ adjacent\ \angle A}{Hypothenus} = \dfrac{AC}{AB} = \dfrac{16}{20} = \dfrac{4}{5}

\dfrac{Length \ opposite \ \angle A}{Length \ adjacent \ \angle A} = \dfrac{BC}{AC} = \dfrac{12}{16} = \dfrac{3}{4}

\dfrac{Length \ opposite \ \angle A}{Hypothenus} = \dfrac{DE}{AD} = \dfrac{6}{10} = \dfrac{3}{5}

\dfrac{Length \ adjacent\ \angle A}{Hypothenus} = \dfrac{AE}{AD} = \dfrac{8}{10} = \dfrac{4}{5}

\dfrac{Length \ opposite \ \angle A}{Length \ adjacent \ \angle A} = \dfrac{DE}{AE} = \dfrac{6}{8} = \dfrac{3}{4}

3 0
3 years ago
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