4 years ago

Estimate the project of 7.8 and 11.4 by rounding

Mathematics

1 answer:

ozzi4 years ago

4 0

The estimate is 10 times 11 it equals 110

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TIMED

Rudik [331]

-x^2 + 4x + 12 = -3x + 24

-> x^2 - 7x + 12 = 0

-> (x-3)(x-4) = 0

-> x= 3 or 4

so y = 15 when x = 3, y = 12 when x = 4

6 0

3 years ago

Read 2 more answers

Proving trapezoid theorems Geometry

Artist 52 [7]

Answer:

ΔABD ≅ ΔACD by SAS, therefore;

$\overline {BD} \cong \overline {CA}$ by CPCTC

Step-by-step explanation:

The two column proof is presented as follows;

Statement ${}$ Reason

ABCD is a trapezoid ${}$ Given

$\overline {BA} \cong \overline {CD}$ ${}$ Given

$\overline {BC} \parallel \overline {AD}$ ${}$ Definition of a trapezoid

ABCD is an isosceles trapezoid ${}$ Left and right leg are equal

∠BAD ≅ ∠CDA ${}$ Base angle of an isosceles trapezoid are congruent

$\overline {AD} \cong \overline {AD}$ ${}$ Reflexive property

ΔABD ≅ ΔACD ${}$ By SAS rule of congruency

$\overline {BD} \cong \overline {CA}$ ${}$ CPCTC

CPCTC; Congruent Parts of Congruent Triangles are Congruent

SAS; Side Angle Side rule of congruency

8 0

3 years ago

Read 2 more answers

Can you explain this to me I have no idea

kap26 [50]

Step-by-step explanation:

number 2... write the equation then balance as shown above...don't forget the state symbols

8 0

2 years ago

Find the distance between the two points S(–5, –2) and T(–3, 4).

Oxana [17]

Answer:

(2,6)

Step-by-step explanation:

7 0

3 years ago

You earn (4x+12) points after completing X levels of a video game and then lose (2x-5) points. Write an expression that represen

Viefleur [7K]

4x + 12
2x - 5
-----------
6x+7
does this help at all?

7 0

3 years ago