All categories

3 years ago

The product of 4 & a number increased by a is -48

Mathematics

1 answer:

d1i1m1o1n [39]3 years ago

7 0

4(x+a)= -48
Divide both sides by 4
(X + a) = -12

X being "a number"

You might be interested in

Heights (cm) and weights (kg) are measured for 100 randomly selected adult males, and range from heights of 133 to 193 cm and

yawa3891 [41]

Answer:

The weight of an adult male who is 172 cm tall is 89.36 kg.

Step-by-step explanation:

The regression equation representing the relationship between height and weight of a person is:

$\hat y=-105+1.13x$

Here

y = weight of a person

x = height of a person

The information provided is:

$\bar x=167.90\ cm\\\bar y=81.47\ kg\\r (X, Y) = 0.228\\p-value=0.023\\\alpha =0.05$

The hypothesis to test the significance of the correlation between height and weight is:

H₀: There is no relationship between the height and weight, i.e. ρ = 0.

Hₐ: There is a relationship between the height and weight, i.e. ρ ≠ 0.

Decision rule:

If the p-value of the test is less than the significance level, then the null hypothesis will be rejected and vice-versa.

According to information provided:

p-value = 0.023 < α = 0.05

The null hypothesis was rejected at 5% level of significance.

Thus, concluding that there is a relationship between the height and weight.

Compute the weight of an adult male with height, x = 172 cm as follows:

$\hat y=-105+1.13x$

$=-105+(1.13\times 172)\\=-105+194.36\\=89.36$

Thus, the weight of an adult male who is 172 cm tall is 89.36 kg.

5 0

3 years ago

Solve for x 6(x-1)=9(x+2)

tigry1 [53]

Simplifying 6(x + -1) = 9(x + 2) Reorder the terms: 6(-1 + x) = 9(x + 2) (-1 * 6 + x * 6) = 9(x + 2) (-6 + 6x) = 9(x + 2) Reorder the terms: -6 + 6x = 9(2 + x) -6 + 6x = (2 * 9 + x * 9) -6 + 6x = (18 + 9x) Solving -6 + 6x = 18 + 9x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9x' to each side of the equation. -6 + 6x + -9x = 18 + 9x + -9x Combine like terms: 6x + -9x = -3x -6 + -3x = 18 + 9x + -9x Combine like terms: 9x + -9x = 0 -6 + -3x = 18 + 0 -6 + -3x = 18 Add '6' to each side of the equation. -6 + 6 + -3x = 18 + 6 Combine like terms: -6 + 6 = 0 0 + -3x = 18 + 6 -3x = 18 + 6 Combine like terms: 18 + 6 = 24 -3x = 24 Divide each side by '-3'. x = -8 Simplifying x = -8

8 0

3 years ago

Read 2 more answers

Determine each segment length in right triangle ABC

zepelin [54]

Answer:

BC = 7√2

BD = 7

Hope this helps you.....

6 0

2 years ago

What is the property of 3m x 1 =3m

Kipish [7]

Answer:

Assuming this is for a Conic Section. There is no property as it does not match a conic section.

8 0

2 years ago

2p x 3q x 5r maths watch

Zepler [3.9K]

Answer:

2px^ 8 qr

Step-by-step explanation:

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "x5" was replaced by "x^5". 1 more similar replacement(s).

STEP 1 :

Equation at the end of step 1

((2px3 • q) • x5) • r

STEP 2 :

Final result :

2px8qr

HOPE THIS HELPS!

PLEASE MARK BRAINLIEST IF THIS HELPED YOU LEARN! :)

3 0

3 years ago

Read 2 more answers