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3 years ago

Write the numerical expression for add 19 and 2, then divide by 7.

Mathematics

1 answer:

AnnyKZ [126]3 years ago

6 0

Answer:

Step-by-step explanation:

(19+2)/7

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celebrity a has 400 followers on social media and is gaining 75 followers each day. celebrity b has 1000 followers on social med

Aleksandr [31]

Answer:

It will take 12 days and they will be at 700 followers each

Step-by-step explanation:

Just guess and keep adding.

8 0

3 years ago

Read 2 more answers

8. © Assessment An old building has

Pani-rosa [81]

Answer:

Step-by-step explanation:

big windows 48

small windows 12

broken windnows9

unbroken windows= 48+12-9= 51

unbroken 51 windows

7 0

3 years ago

Point E is between points D and F and DE=27 and EF =34.

asambeis [7]

If e is between them, then the distances DE and EF add to the total, DF. So the answer is just 27 + 34 which is 61, A

4 0

3 years ago

Very confused with this

OlgaM077 [116]

Answer:

∠ D = 28°

Step-by-step explanation:

The external angle of a triangle is equal to the sum of the 2 opposite interior angles.

∠ EBC is an exterior angle of Δ ABE, thus

∠ EBC = 90° + 34° = 124°

BD bisects ∠ EBC, so

∠ EBD = 124° ÷ 2 = 62° , then

∠ D = 180° - (90 + 62)° = 180° - 152° = 28° ( angle sum of triangle )

4 0

3 years ago

Factorize the following algebraic expression:

Hoochie [10]

X^2+16-38=0
find what 2 numbers multiply to get -38 and add to get 16
find factors of 38
2 times 19
there is no way to use common factor so use quadratic formula which is
x= $\frac{ -b+\sqrt{b^2-4ac} }{2a}$ or x= $\frac{ -b-\sqrt{b^2-4ac} }{2a}$

ax^2+bx+c=0 subsitte
a=1
b=16
c=-38
subsitute
$\frac{ -16+\sqrt{16^2-4(1)(-38)} }{2(1)}$ = $\frac{ -16+\sqrt{256+152} }{2}$ = $\frac{ -16+\sqrt{408} }{2}$ = $\frac{ -16+2\sqrt{102} }{2}$ = $-8+\sqrt{102}$
so the answers for x are $-8+\sqrt{102}$ and $-8-\sqrt{102}$ which are aprox -2.099504938362 and +18.099504938362
so it would be
(x-[-8+√102])(x+[8+√102])=0

6 0

3 years ago