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3 years ago

15

Three numbers add up to 180. The second number is twice the first, and the third number is three times the first. WHAT IS EACH N

UMBER?

1 answer:

Ratling [72]3 years ago

8 0

The answer is 30,60,90. Because 60 is twice the number 30 and 90 is three times the first number.

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Solve for x.<br> Please explain step by step I would really appreciate it !!

NeTakaya

Answer:

$x=8$

Step-by-step explanation:

<u><em>The correct question is</em></u>

Quadrilateral DEFG is congruent with Quadrilateral SPQR

Solve for x

we know that

If two figures are congruent, then its corresponding sides and its corresponding angles are congruent

we have that

GF and RQ are corresponding sides

so

RQ=GF

substitute the given values

$2x-4=12$

solve for x

adds 4 both sides

$2x=12+4$

$2x=16$

divide by 2 both sides

$x=8$

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3 years ago

Identify the cross section of the cube shown in the diagram

Maslowich

Answer:

It's rectangle

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3 years ago

A triangle has a side length of 5.4 and 7 x x=

Burka [1]

Answer:

D. 8.8

Step-by-step explanation:

As the pythagorean theorem.

A² + B² = C²,

5.4 × 5.4 + 7 × 7 = C²,

29.16 + 49 = C²,

78.16 = C²,

8.8 ≈ C

4 0

3 years ago

If s(x)=x-7 and t(x) =4x^2+3 which expression is equivalent to (t×s)(x)

marshall27 [118]

Answer:

$\large\boxed{(t\times s)(x)=4x^3-28x^2+3x-21}$

Step-by-step explanation:

$s(x)=x-7\\t(x)=4x^2+3\\\\(t\times s)(x)=t(x)\times s(x)\\\\\text{Substitute:}\\\\(t\times s)(x)=(4x^2+3)(x-7)\\\\\text{use FOIL:}\ (a+b)(c+d)=ac+ad+bc+bd\\\\(t\times s)(x)=(4x^2)(x)+(4x^2)(-7)+(3)(x)+(3)(-7)\\\\=4x^3-28x^2+3x-21$

8 0

3 years ago

I don't get this please help me

tiny-mole [99]

There are 12 months in a year so. 85x12=1020

6 0

3 years ago