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Zina [86]
3 years ago
15

4. What number is shown with these blocks?

Mathematics
1 answer:
strojnjashka [21]3 years ago
7 0

Answer:29

Step-by-step explanation:

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Find -7a-6B (Picture provided)
sertanlavr [38]

Answer:

Option c

-7A-6B=\left(\begin{array}{ccc}40&-106&-32\\-46&43&25\\82&-62&-18\end{array}\right)

Step-by-step explanation:

First multiply matrix A by -7.

Then multiply the matrix B by -6.

When multiplying a matrix by a number x you must multiply each element of the matrix by x.

<em><u>Then we perform operation -7A </u></em>

-7\left(\begin{array}{ccc}-10&10&8\\-2&-1&5\\-4&8&-6\end{array}\right)=\left(\begin{array}{ccc}70&-70&-56\\14&7&-35\\28&-56&42\end{array}\right)

<u><em>Now we perform operation -6B </em></u>

-6\left(\begin{array}{ccc}5&6&-4\\10&-6&-10\\-9&1&10\end{array}\right)=\left(\begin{array}{ccc}-30&-36&24\\-60&36&60\\54&-6&-60\end{array}\right)

Now we add the resulting matrices

\left(\begin{array}{ccc}70&-70&-56\\14&7&-35\\28&-56&42\end{array}\right)+\left(\begin{array}{ccc}-30&-36&24\\-60&36&60\\54&-6&-60\end{array}\right)=\left(\begin{array}{ccc}40&-106&-32\\-46&43&25\\82&-62&-18\end{array}\right)

7 0
3 years ago
Help please help me out with this (old math)
shutvik [7]
6 7/12 I hope this helps ya out

6 0
2 years ago
Read 2 more answers
Two sides of a triangle have length 10 and 17. What is the range of the length of the 3rd side
andriy [413]

Answer:

13.7477270849 to 19.7230829233.

Step-by-step explanation:

1. Using the pythagorean theorem, a²+b²=c², we try different combinations of given lengths 10 and 17.

2. If 10 and 17 are legs and 10²+17²=√389 = 19.7230829233, then c=19.7230829233.

3. If 10 is a leg and 17 is a hypotenuse,

10²+b²=17²

100+b²=289

b²=189

b=13.7477270849

4. The case of 17 is a leg and 10 is a hypotenuse is not possible because the hypotenuse is the longest side.

5. The range of the length of the 3rd side is 13.7477270849 to 19.7230829233.

7 0
3 years ago
Solve the equation for x and  find the restrictions on the variable. Ax + bx = c​
Serggg [28]

Answer:

x = c/(A + b)

A + b ≠ 0

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

<u>Algebra I</u>

  • Factoring

Step-by-step explanation:

<u>Step 1: Define</u>

Ax + bx = c

<u>Step 1: Solve for </u><em><u>x</u></em>

  1. Factor:                    x(A + b) = c
  2. Isolate <em>x</em>:                 x = c/(A + b)

We know that we cannot divide by 0, so A + b cannot equal 0.

8 0
3 years ago
-27=-3p+15-3p what is the answer
Ulleksa [173]
Because they have lettters the (p's) go together which is -6p and then you have the +15 left so you add that on the end , your answer is -6p + 15
3 0
3 years ago
Read 2 more answers
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