Q1
Q4
Q6
Q7
Q8
Ex
Expand and simplify 4(2d + 3) - 2(3d – 5)
(2 marks)
o

Answer:

zero

Step-by-step explanation:

Here, we want to get the sign of the expression

since a is zero, it multiplies any value in the brackets to be zero too

zero is neither positive nor negative

What this mean is that we can only explicitly classify the sign as zero

Answer:

Solution given:-9(14d - 13e) =117e-126d is your answer

Answer:

the answer is 24.8

19^2+16^2=617

sqrt of 617 is 24.8

Step-by-step explanation:

Answer:

yes ‍♀️‍♀️‍♀️‍♀️‍♀️‍♀️❤❤❤❤❤❤❤❤❤❤❤

Answer:

Step-by-step explanation:

Also,

Written in the sentence only that,

28% of people enjoy New Years Eve

Of 2nd Option.

Answer:

D

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

The formula for calculating a z-score is is z = (x-μ)/σ, where x is the raw score, μ is the population mean, and σ is the population standard deviation. As the formula shows, the z-score is simply the raw score minus the population mean, divided by the population standard deviation.\

Step-by-step explanation:

Answer:

295.08

Step-by-step explanation:

Answer:

295.08

Step-by-step explanation:

296.4 - 1.32 = 295.08

7^2+18^2=49+324

49+324=373

19.31^2 would be your answer

Answer:

First graph option: A coordinate plane is shown with two lines graphed. One line passes through the y axis at 6 and through the x-axis at 6. The other line passes through the y axis at negative 3 and the x-axis at 1.5. The lines intersect at point 3 commas 3.

Step-by-step explanation:

i)  y=-x+6

ii) y=2x-3

The solution of the system of equations is found by equalizing the 2 equations:

-x+6=2x-3

-2x-x=-6-3

-3x=-9

x=-9/(-3)=3

i)  y=-3+6=3

ii) y=2(3)-3=6-3=3  

In graphs, this means that the lines intersect at (3, 3) ONLY

Answer: The graph where the lines intersect at (3, 3)

its a

I got it right om my exam

Answer:

Where the question?

Step-by-step explanation:

Answer:

a) Log ( 2 ) = 4t Log ( 83/80 )

b) 4.7 years

Step-by-step explanation:

Attached below is the detailed solution

a) exponential statement in log form for an investment at 15% quarterly

Log ( 2 ) = 4t Log ( 83/80 )

n = 4 ,  r = 15

b) using change to base  to find double time in yr

Double time in yr

t = Log ( 2 ) / 4log ( 83/80 )

= 4.7 years

Answer:

Answer is b. The distance between -5 and 0.

Step-by-step explanation:

Answer:

MR. i cant explain it i dont know the way u should ssy it in ur school can u tell me

Answer: https://www.khanacademy.org/math/statistics-probability/displaying-describing-data/quantitative-data-graphs/a/dot-plots-and-frequency-tables-review

Answer:

C. [tex]\frac{13}{6}[/tex]

Step-by-step explanation:

formula for slope is [tex]\frac{y2-y1}{x2-x1}[/tex]

So,

[tex]\frac{6-(-7)}{1-(-5)}[/tex]

which leaves you with

[tex]\frac{13}{6}[/tex]

Answer:

tttttttttttttttttttttttttttttttttttttttttttttttt ty

Step-by-step explanation:

Answer:

c- 4 x 10^7

Step-by-step explanation:

for scientific notation, the first number can not be greater than 9

so you have to split your number into a decimal

37,250,000

3.7250000

so the first part of your equation is 4 because the 7 rounds up the 3

then, there are 7 digits after the decimal, so that is your exponent

it is also positive.

so your final answer is

4 x 10^7  :)

Answer:

37.22

Step-by-step explanation:

Answer:

37.22

Step-by-step explanation:

Answer:

x-intercept: (-40,0)

y-intercept: (0,15)

Step-by-step explanation:

Answer:

the answer is B

Step-by-step explanation:

14+24=38

then

7+12=19

19 ×2 =38

Answer:

B & C

Step-by-step explanation:

Isosceles- having two sides of the same length

Obtuse- having one obtuse angle and two acute angles

Answer:

Step-by-step explanation:

First we need to do 350 - 15 since 350 is our total and we already started at 15m.

Next divide the remainder (335) by 5 because that’s how fast we are moving, the final answer is 67 minutes.

Answer:

h = 27.3

Step-by-step explanation:

A = bh

h = A/b

h = 210.21 / 7.7

h = 27.3

Answer:

[tex] \displaystyle \rm A_{ \text{c - pentagon}} =41[/tex]

[tex] \rm \displaystyle P _{ \rm c - pentagon} = 20+ 4 \sqrt{2} [/tex]

Step-by-step explanation:

we have a square and a triangle

we want to figure out the area and the perimeter of the pentagon

to figure out the area of the pentagon we can use the given formula:

[tex] \displaystyle \rm A_{ \text{c - pentagon}} = A_{ \text{squre}} - A_{ \text{triangle}}[/tex]

let's figure out [tex]A_{\rm square}[/tex]:

since the given shape is a square Every angle of its 90° Thus the triangle is a right angle triangle

therefore the height is 4

[tex] \displaystyle A _{ \rm triangle} = \frac{1}{2} \times b \times h[/tex]

substitute h and b

[tex] \displaystyle A _{ \rm triangle} = \frac{1}{2} \times 4 \times 4[/tex]

reduce fraction:

[tex] \displaystyle A _{ \rm triangle} = 2 \times 4[/tex]

simplify multiplication:

[tex] \displaystyle A _{ \rm triangle} = 8[/tex]

likewise square

[tex] \displaystyle A _{ \rm squre} = {s}^{2} [/tex]

substitute s:

[tex] \displaystyle A _{ \rm squre} = {7}^{2} [/tex]

simplify square

[tex] \displaystyle A _{ \rm squre} = 49[/tex]

hence,

[tex] \displaystyle \rm A_{ \text{c - pentagon}} =49- 8[/tex]

[tex] \displaystyle \rm A_{ \text{c - pentagon}} =41[/tex]

to figure out perimeter

let's figure out hypotenuse first

[tex] \displaystyle h = \sqrt{ {4}^{2} + {4}^{2} } [/tex]

[tex] \displaystyle h = \sqrt{ 16 + 16} [/tex]

[tex] \displaystyle h = 4 \sqrt{2} [/tex]

therefore,

[tex] \rm \displaystyle P _{ \rm c - pentagon} = 3 + 3 + 4 \sqrt{2} + 7 + 7[/tex]

[tex] \rm \displaystyle P _{ \rm c - pentagon} = 6 + 4 \sqrt{2} + 14[/tex]

[tex] \rm \displaystyle P _{ \rm c - pentagon} = 20+ 4 \sqrt{2} [/tex]

Answer: 340

Step-by-step explanation:

100 - 74 = 26%

26% = .26

x * .26 = 88.4

   /.26    /.26

x = 340

check

340 * .74 = 251.6

340 - 251.6 = 88.4