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4 years ago

Simplify: a + 2a + 3a + 4a

Mathematics

1 answer:

oksian1 [2.3K]4 years ago

5 0

You just need to factor a to get

$a(1+2+3+4) = 10a$

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Write an equation of the line that passes through the points (0, –5) and (4, 7).

Viefleur [7K]

Y = 3 x - 5. it said my answer has to be at least 20 characters long soo.. .

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3 years ago

Which of the following theorems verifies that ABC ~ STU?

Lunna [17]

Answer:

B. AA

Step-by-step explanation:

The diagram given shows that two angles in ∆ABC are congruent to two corresponding angles in ∆STU.

Invariably, the third unknown angle of both triangles would also be equal going by the third angle theorem.

Thus, based on the AA Similarity Theorem which says that two triangles are similar to each other if two corresponding angles of one is congruent to two angles in the other, ∆ABC ~ ∆STU.

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3 years ago

Alex skipped a jump rope 50 times every minute as shown by this table. x equals the number of minutes, and y equals the

KIM [24]

Answer:

Y = 50x

Since every minute he jumps 50 times, we multiply 50 by the amount of minutes (x)

6 0

3 years ago

Two integers a and b have a product of -48

ycow [4]

It’s c because I got it right on the test

3 0

3 years ago

Question 2(Multiple Choice Worth 4 points) (08.02)A pair of equations is shown below. x + y = 5 y = one halfx + 2 If the two equ

8_murik_8 [283]

Answer:

$(2,3)$

Step-by-step explanation:

The first equation is $x+y=5$

The second equation is $y=\frac{1}{2}x+2$

When we graph these two equations, <em>they will meet at a point which represent the solution of the two equations</em>.

We can solve the two equations simultaneously to determine their point of intersection.

Let us substitute the second equation into the first equation to get;

$x+\frac{1}{2}x+2=5$

Multiply through by 2 to get;

$2x+x+4=10$

Group similar terms to obtain;

$2x+x=10-4$

Simplify;

$3x=6$

Divide both sides by 3;

$\Rightarrow x=2$

Put $x=2$ into the second equation;

$y=\frac{1}{2}(2)+2$

$\Rightarrow y=1+2$

$\Rightarrow y=3$

Therefore the graphs of the two functions intersect at (2,3)

See graph in attachment.

3 0

3 years ago