All categories

2 years ago

Pls help FAST I’m giving brainliest

Mathematics

1 answer:

SVETLANKA909090 [29]2 years ago

4 0

The answer to this would be 15-4x

You might be interested in

Find two supplementary angles if the measure of one angle is three times the measure of the second

Colt1911 [192]

Hello :
x+3x=180
4x=80
x=180/4
x=45°

8 0

2 years ago

Find the sum: -6 + 3

Andrei [34K]

Negative 6 plus positive 3 equals negative three.

3 0

2 years ago

Read 2 more answers

HELPPPPP PLSSSSSSS pls

Vilka [71]

Sorry, not sure how to describe it, but the lower the temperature, the higher the hot chocolate sales.

3 0

2 years ago

What is the slope of the line through the points (-2, -1) and (4, 3)?

balu736 [363]

Answer:

slope = $\frac{2}{3}$

Step-by-step explanation:

Calculate the slope m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 2, - 1) and (x₂, y₂ ) = (4, 3)

m = $\frac{3+1}{4+2}$ = $\frac{4}{6}$ = $\frac{2}{3}$

7 0

3 years ago

Read 2 more answers

Let v1=(3,5) and v2=(-4,7).

Nat2105 [25]

PART A

The given vectors are,

$v_1 = \: < \: 3 , \: 5 \: >$

$v_2 = \: < \: - 4 , \: 7 \: >$

The magnitude of the vector

$v= \: < \: x , \: y \: > \:$

is given by:

$|v| = \sqrt{ {x}^{2} + {y}^{2} }$

This implies that,

$|v_1| = \sqrt{ {3}^{2} + {5}^{2} }$

$|v_1| = \sqrt{9 + 25}$

$|v_1| = \sqrt{34}$

$|v_2| = \sqrt{ {( - 4)}^{2} + {7}^{2} }$

$|v_2| = \sqrt{ 16+ 49}$

$|v_2| = \sqrt{65}$

PART B

To find the unit vector in the direction of a given vector, we divide by the magnitude of that vector.

$^{ - } _{v_1} = \: < \: \frac{3}{ \sqrt{34} } , \: \frac{5}{ \sqrt{34} } \: >$

Rationalize the denominator.

$^{ - } _{v_1} = \: < \: \frac{3\sqrt{34}}{ 34 } , \: \frac{5\sqrt{34}}{ 34 } \: >$

Also,

$^{ - } _{v_2} = \: < \: \frac{ - 4}{ \sqrt{65} } , \: \frac{7}{ \sqrt{65} } \: >$

$^{ - } _{v_2} = \: < \: \frac{ - 4\sqrt{65}}{ 65 } , \: \frac{7\sqrt{65}}{ 65 } \: >$

PART C

The sketch of the given vectors as well as their unit vectors are shown in the attachment.

3 0

2 years ago