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3 years ago

PLS HELP.

Mathematics

2 answers:

djyliett [7]3 years ago

8 0

Answer:

y=1/10 times 5

Step-by-step explanation:

you would times by 5 on both sides

Alexandra [31]3 years ago

6 0

Step-by-step explanation:

y/-5 = 1/10

10y = 1*-5

y = - 5/10

y = - 1/2

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Prove if possible that the following pairs of triangles are congruent. Write the complete proof in your paper homework and for o

Alja [10]

Answer:

ΔDAM ≅ ΔTUM according to Side Angle Side (SAS) rule of congruency

Step-by-step explanation:

The proof of congruency of the two triangles is as follows;

Statement ${}$ Reason

Segment DM is congruent to Segment TM ${}$ Given

Segment AM is congruent to Segment UM ${}$ Given

∠DMA is congruent to ∠UMT ${}$ Given

Therefore, ΔDAM is congruent to ΔTUM ${}$ SAS rule of congruency

Where;

SAS = Side Angle Side

Therefore;

ΔDAM ≅ ΔTUM according to Side Angle Side (SAS) rule of congruency.

7 0

3 years ago

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Which shows the correct substitution of the values a, b, and c from the equation -2=-x+x^2-4 into the quadratic formula?

Greeley [361]

Given the equation:

(1) $-2=-x+ x^{2}-4$

We need to find a, b and c. So, we know that a quadratic equation is given by:

(2) $ax^{2}+bx+c=0$

Then, we need to order the equation (1) and to adjust it to the equation (2), so:

$x^{2}-x-2=0$

So, if we compare these two equations, the conclusion is:

$a=1$
$b=-1$
$c=-2$

(3) $x= \frac{-b\pm \sqrt{b^{2}-4ac}}{2a}$

Substituiting a, b and c into (3):

$x= \frac{-(-1)\pm \sqrt{(-1)^{2}-4(1)(-2)}}{2(1)}$

Finally, the results are two values:

$x_{1}=2$
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7 0

3 years ago

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What is the volume of the cone below?

erik [133]

Answer:

B. 3408π units³

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Geometry

Volume of a Cone Formula: $\displaystyle V = \frac{1}{3} \pi r^2h$

r is radius
h is height

Step-by-step explanation:

Step 1: Define

Radius r = 12

Height h = 71

Step 2: Find Volume

Substitute in variables [Volume of a Cone Formula]: $\displaystyle V = \frac{1}{3} \pi (12)^2(71)$
Evaluate exponents: $\displaystyle V = \frac{1}{3} \pi (144)(71)$
Multiply: $\displaystyle V = \frac{1}{3} \pi (10224)$
Multiply: $\displaystyle V = 3408 \pi$