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3 years ago

Help I need to know what this is asap

Mathematics

2 answers:

RSB [31]3 years ago

4 0

Answer:

Step-by-step explanation:

storchak [24]3 years ago

4 0

6 • (-3)

Work:
6 • (-3) = -18
-2 • (-4) = 8
0 • (-2) = 0
-14 • (-5) = 70

*Two negatives will counteract to make a positive. To get a negative product, one value must be negative and the other must be positive.

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That is the qustion number 2

julsineya [31]

What you are going to do is,

x/2=14
Multiply 2 on both sides of the equal bar. Then x=28 is your answer.

5 0

3 years ago

Read 2 more answers

Help me pls due in 5 mins

Drupady [299]

Answer: $215\ cm^2$

Step-by-step explanation:

Given

Here the given figure can be divided into two shapes i.e. rectangle and a trapezium

For rectangle ABCD Area = $10\times8=80\ cm^2$

Area of trapezium CEFD Area is $\frac{1}{2}[\text{sum of non-parallel sides}]\times[\text{distance between them}]$

$\Rightarrow \frac{1}{2}\times [10+17][10]=135\ cm^2$

Total shaded area $=80+135=215\ cm^2$

5 0

3 years ago

I’m stuck can some one help me

abruzzese [7]

Answer:

3) Midpoint is (-4,0.5)

Option A is correct.

4) Midpoint is (2.5,0)

Option B is correct.

5) The factors are (x+4)(x-7)

Option C is correct.

6) The factors are (x+4)(x+2)

Option A is correct.

Step-by-step explanation:

Question 3

Find midpoint of the following:

(2,-7), (-10,8)

The formula used to find midpoint is: $Midpoint=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2} )$

We have $x_1=2, y_1=-7, x_2=-10,y_2=8$

Putting values and finding midpoint

$Midpoint=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2} )\\Midpoint=(\frac{2-10}{2},\frac{-7+8}{2} )\\Midpoint=(\frac{-8}{2},\frac{1}{2} )\\Midpoint=(-4,0.5 )$

So, Midpoint is (-4,0.5)

Option A is correct.

Question 4

Find midpoint of the following:

(2,-10), (3,10)

The formula used to find midpoint is: $Midpoint=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2} )$

We have $x_1=2, y_1=-10, x_2=3,y_2=10$

Putting values and finding midpoint

$Midpoint=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2} )\\Midpoint=(\frac{2+3}{2},\frac{-10+10}{2} )\\Midpoint=(\frac{5}{2},\frac{0}{2} )\\Midpoint=(2.5,0 )$

So, Midpoint is (2.5,0)

Option B is correct.

Question 5

Factor each completely

$x^2-3x-28$

We will break the middle term and find factors

$x^2-3x-28\\=x^2-7x+4x-28\\Taking\:common\\=x(x-7)+4(x-7)\\=(x+4)(x-7)$

So, the factors are (x+4)(x-7)

Option C is correct.

Question 6

Factor each completely

$x^2+6x+8$

We will break the middle term and find factors

$x^2+6x+8\\=x^2+4x+2x+8\\=x(x+4)+2(x+4)\\=(x+4)(x+2)$

So, the factors are (x+4)(x+2)

Option A is correct.

7 0

3 years ago

Make x the subject, fully simplify please<br>will mark brainliest <br><br>7y⁴= 7y²(z-3ax)

tekilochka [14]

Answer:

$x = \dfrac{z - y^2}{3a}$

Step-by-step explanation:

7y⁴ = 7y²(z - 3ax)

Divide both sides by 7y².

y² = z - 3ax

Add 3ax to both sides. Subtract y² from both sides.

3ax = z - y²

Divide both sides by 3a.

$x = \dfrac{z - y^2}{3a}$

5 0

3 years ago

The bearing of ships A and B from a port P arev225 and 116 respectively ship A is 3.91 from ship B on a bearing of 258 calculate

pashok25 [27]

Answer:

2.55

Step-by-step explanation:

Draw a picture of the triangle formed by points P, A, and B. The angle of the line from P to A is 225°. The angle of the line from P to B is 116°. The angle of the line from B to A is 258°, and the length of the line is 3.91.

The easiest way to solve this is by first finding the angle of the line from B to P. Using interior angles, we can show that this is 180° − 116° = 64°.

Next, we can show that:

∠APB = 225° − 116° = 109°

∠ABP = 360° − (258° + 64°) = 38°

Finally, we can use law of sines to find AP.

AP / sin 38° = 3.91 / sin 109°

AP = 2.55

4 0

3 years ago

Help I need to know what this is asap​

Help I need to know what this is asap